The present disclosure relates to a method of making a cemented carbide mining insert, a cemented carbide mining insert with having a chemical and hardness gradient and to the use thereof. The method includes the steps of providing a green mining insert compact formed from a first powder including a WC-based hard phase, optionally one or more further hard-phase components and a binder, applying a second powder including a grain refiner compound and/or a carbon based grain growth promoter to at least one portion of a surface of the green mining insert compac, and sintering the green mining insert compact to produce a cemented carbide mining insert, wherein the first powder additionally includes Cr, in an amount such that the mass ratio of Cr/binder is of 0.01-0.3.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
2.
METHOD OF SURFACE HARDENING AND TOUGHENING MINING INSERTS
A method of treating mining inserts wherein said mining inserts are subjected to a surface hardening and toughness process; wherein the surface hardening and toughness process is a shaking process within an enclosed container; characterized in that: the shaking process is conducted with a peak to peak displacement of > 20 mm and wherein the maximum shaking frequency during the shaking process is between 5-30 Hz.
B22F 3/24 - After-treatment of workpieces or articles
B23P 9/00 - Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearingsFeatures of such surfaces not otherwise provided for, their treatment being unspecified
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B24B 31/06 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving oscillating or vibrating containers
3.
NICKEL BASED WEAR PROTECTION FOR A DTH DRILLING ASSEMBLY
characterized in thatcharacterized in that: at least part of the external surface of the piston or at least part of the internal surface of the inner cylinder is coated with a first wear protection layer (36); wherein the first wear protection layer is nickel-based; and at least part of the first wear protection layer is coated with a polymer-based sealant top layer (38).
09 - Scientific and electric apparatus and instruments
16 - Paper, cardboard and goods made from these materials
41 - Education, entertainment, sporting and cultural services
Goods & Services
Downloadable electronic publications in the nature of
magazines, written articles and news; all in relation to the
fields of mining, construction, tunneling and rock
processing. Magazines [periodicals]; newspapers; printed periodical
publications; journals; books; newsletters; all in relation
to the fields of mining, construction, tunneling and rock
processing. Providing on-line [not downloadable] digital publications in
the nature of magazines, written articles and news via the
Internet in relation to the fields of mining, construction,
tunneling and rock processing; providing online educational
information in relation to the fields of mining,
construction, tunneling and rock processing via the
Internet; publication of online journals, namely, blogs
relating to mining, construction, tunneling and rock
processing; arranging and conducting educational and
informational events, talks, seminars, workshops, webinars,
exhibitions and conferences relating to mining,
construction, tunneling and rock processing.
A method of treating a cemented carbide insert for rock drilling and mineral cutting is provided. The insert includes a core of cemented carbide and a surface zone of cemented carbide, wherein the core further contains eta-phase and the surface zone is free of eta-phase. The mining insert is subjected to a surface hardening process, wherein the surface hardening process is executed at an elevated temperature of or above 50° C.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
6.
NICKEL BASED WEAR AND CORROSION PROTECTED DRILL COMPONENT
A drill component comprising: a longitudinal axis extending axially between a first end at an axially forward end and a second end at an axially rearward end; an external surface; and an internal surface; wherein at least part of the external surface is coated with a first nickel-based corrosion protection layer nickel; and at least part of the first corrosion protection layer is coated with a polymer-based sealant top layer.
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
E21B 7/00 - Special methods or apparatus for drilling
A drilling component includes a first end portion configured to be arranged to face the a first section of a drill string. The first end portion includes a first interconnecting portion configured to engage a corresponding interconnecting portion of the first section of the drill string. The drilling component further includes a hollow interior configured to extend along a length direction of the drill string and to form a part of a passage through the drill string. The drilling component has a wall defining the hollow interior, wherein an area of a first cross-section of the wall is smaller than an area of a second cross-section of the wall and wherein the first cross-section is arranged between the second cross-section and the first end portion.
A percussive drill bit for drilling a bore hole comprising a bit body having a front face surrounded by a gauge and a longitudinal bit central axis; and a plurality of gauge inserts embedded in the gauge; wherein the gauge inserts have a longitudinal insert central axis, a cylindrical shank portion; a working tip portion; an radially internal side located on the side nearest to the bit central axis and an radially external side on the side further from the bit central axis; characterized in that: the working tip portion of the gauge inserts have an asymmetric geometry wherein the volume of material on the radially external side is greater than the volume of material on the radially internal side.
E21B 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
E21B 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
09 - Scientific and electric apparatus and instruments
16 - Paper, cardboard and goods made from these materials
41 - Education, entertainment, sporting and cultural services
Goods & Services
Downloadable electronic publications in the nature of magazines, written articles and news; all in relation to the fields of mining, construction, tunneling and rock processing. Magazines [periodicals]; newspapers; printed periodical publications; journals; books; newsletters; all in relation to the fields of mining, construction, tunneling and rock processing. Providing on-line [not downloadable] digital publications in the nature of magazines, written articles and news via the Internet in relation to the fields of mining, construction, tunneling and rock processing; providing an Internet website featuring news and information in relation to the fields of mining, construction, tunneling and rock processing; publication of online journals, namely, blogs relating to mining, construction, tunneling and rock processing; arranging and conducting educational and informational events, talks, seminars, workshops, webinars, exhibitions and conferences relating to mining, construction, tunneling and rock processing.
09 - Scientific and electric apparatus and instruments
16 - Paper, cardboard and goods made from these materials
41 - Education, entertainment, sporting and cultural services
Goods & Services
(1) Downloadable electronic publications in the nature of magazines, written articles and news; all in relation to the fields of mining, construction, tunneling and rock processing.
(2) Magazines [periodicals]; newspapers; printed periodical publications; journals; books; newsletters; all in relation to the fields of mining, construction, tunneling and rock processing. (1) Providing on-line [not downloadable] digital publications in the nature of magazines, written articles and news via the Internet in relation to the fields of mining, construction, tunneling and rock processing; providing online educational information in relation to the fields of mining, construction, tunneling and rock processing via the Internet; publication of online journals, namely, blogs relating to mining, construction, tunneling and rock processing; arranging and conducting educational and informational events, talks, seminars, workshops, webinars, exhibitions and conferences relating to mining, construction, tunneling and rock processing.
A shank adapter, forming part of a drilling assembly, has a main body extending axially between a first end and a second end, an externally threaded male spigot portion provided at the second end, and a non-threaded shank positioned axially intermediate the main body and the threaded section. A radially projecting shoulder is positioned axially between the main body and the male spigot portion. The shank has a transition section positioned adjacent to the shoulder at the second end having an outside diameter that increases in a direction from the spigot portion to the shoulder. A cross-sectional shape profile of the outer surface of the transition section has a segment of an ellipse having a semi-major axis (a), a semi-minor axis (b) and an exponential factor (n) according to the equation:
1
A ratio of the semi-major to semi-minor axes (a:b) is within the range 2b
A sub-assembly, rock drilling rig and method of absorbing vibrations in rotary and DTH drilling. The sub-assembly is for transmitting torque and axial forces between a rotating head and a drilling tool. There is an axial floating arrangement for providing an allowed limited axial relative movement between coupling elements of the sub-assembly. The arrangement comprises several axial drive pins for transmitting the torque. First ends of the drive pins are mounted immovably and second ends are mounted with clearances, whereby the drive pins can bend under torsional shocks. Thus, the drive pins serve as torsional dampening elements.
A reamer head (10) for raise boring operations comprising: a reamer body (16), a plurality of roller cutters (21) connected to the body (16), each connected to the body (16) using a mounting plate (22), and an upper drill string connection (12) connected to the body (16), wherein the mounting plate (22) comprises a cutout (26) in the form of a through hole for removal of cuttings from the reamer head (10).
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/28 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
15.
METHOD AND APPARATUS FOR EXTRACTION OF CEMENTED CARBIDE BODIES FROM A COMPONENT
A method for recovery of at least one cemented carbide body from a component including the steps of first clamping the component in a clamping device, and then simultaneously or cyclically heating and vibrating the component to dislodge the at least one cemented carbide body from the component. Also provided is an apparatus for the recovery of at least one cemented carbide body from a component having an axial axis, the apparatus including a vibrating device arranged for vibrating the component in a vertical direction with respect to the axial axis, a clamping device arranged for positioning the component so that the cemented carbide bodies are vibrated in a vertical direction with respect to the axial axis, and at least one heating device arranged for heating of the component at the same time as vibrating the component.
09 - Scientific and electric apparatus and instruments
16 - Paper, cardboard and goods made from these materials
41 - Education, entertainment, sporting and cultural services
Goods & Services
Downloadable electronic publications in the nature of magazines, written articles and news; all in relation to the fields of mining, construction, tunneling and rock processing. Magazines [periodicals]; newspapers; printed periodical publications; journals; books; newsletters; all in relation to the fields of mining, construction, tunneling and rock processing. Providing on-line [not downloadable] digital publications in the nature of magazines, written articles and news via the Internet in relation to the fields of mining, construction, tunneling and rock processing; providing an Internet website featuring news in relation to the fields of mining, construction, tunneling and rock processing; publication of online journals, namely, blogs relating to mining, construction, tunneling and rock processing; arranging and conducting educational and informational events, talks, seminars, workshops, webinars, exhibitions and conferences relating to mining, construction, tunneling and rock processing.
17.
CEMENTED CARBIDE INSERT FOR MINING OR CUTTING APPLICATIONS COMPRISING GAMMA PHASE CARBIDE
A sintered cemented carbide insert for mining or cutting applications includes a mean WC grain size of between 0.8-18 μm, a binder phase in a weight between 4-18 wt %, a gamma phase with the cubic gamma phase precursors in a weight of between 0.8-10 wt %, and any unavoidable impurities and a balance of WC. A difference between the hardness at any point 0.3 mm from the surface of the insert and the hardness of the bulk is at least 25 HV3, wherein hardness is measured according to ISO EN6507. A method of producing the cemented carbide is also provided.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A rotary cone rock bit having a forward end and a rearward end, includes a bit body having a plurality of legs extending therefrom. Each of the legs have an outer surface that includes a leading surface, a center panel surface, and a trailing surface and at least one nozzle. A roller cone is rotatably supported on each of the legs. The rotary cone bit further includes at least identification tag for storing product identification information and/or drilling operation information. The at least one identification tag is positioned on the trailing surface of at least one of the legs.
A coupling for connecting downhole tubulars includes a tubular body, a female coupling part, a male coupling part, and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body. The at least one thread having a thread-form including a crest, a root, and a pair of flanks. The crest and the root are each cambered about a respective first and second camber radius, Rb, Rb−T along the entire length of the thread-form, and each camber radius, Rb, Rb−T, is greater than an outer diameter of the coupling. The male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf, wherein each camber radius (Rb, Rb−T) is between 700-1900 mm.
A coupling for connecting downhole tubulars includes a tubular body, a female coupling part, a male coupling part, and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body. The at least one thread has a thread-form including a crest, a root, and a pair of flanks. The crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling. The male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf, wherein the ratio of the male thread camber radius to the female thread camber radius (Rbm/Rbf) is between <1.0 and ≤1.1.
Power-operated and pneumatic drilling bits and tools for use in mining and construction; Power-operated and pneumatic down the hole hammers; structural parts and components for the aforesaid goods.
A composite material comprising a cemented carbide matrix embedded with diamond entities which are homogeneously distributed throughout; wherein the constituents of the cemented carbide include a metal carbide phase and a binder phase; wherein the grain size of the metal carbide is 0.6-8 microns; wherein the material comprises 5-65 vol% diamond entities; characterized in that: at least 20% of the diamond entities contains pores and / or cracks that are filled with constituent(s) of the cemented carbide.
B22F 3/23 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor involving a self-propagating high-temperature synthesis or reaction sintering step
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A hammer drill assembly is arranged for coupling to a drill string, wherein the drill bit is releasably attached to a driver sub via a retaining sleeve. The retaining sleeve includes a body that extends between a ring at its forward end and a plurality of tips at its rearward end. Also, methods of attaching and detaching a drill bit from the rest of the assembly are provided.
E21B 17/046 - CouplingsJoints between rod and bit, or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
A drilling assembly for percussive drilling includes at least two of a drill bit, a drill rod and a guide adapter. A peripheral surface of the shoulder on the drill rod is at least partially encased in both radial and axial directions inside the mounting sleeve of the drill bit or the mounting sleeve of the guide adapter, and/or the peripheral surface of the shoulder on the guide adapter is at least partially encased in both radial and axial directions inside the mounting sleeve of the drill bit.
A roller cutter for a raise boring tool comprising: a journal; a cutter shell positioned radially around a journal; wherein the journal comprises an external surface from which a journal end protrudes from; a seal retainer positioned between the journal and the roller cutter; characterized in that: at least one digital identification tag is located on the roller cutter.
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/10 - Roller bits with roller axle supported at both ends
E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
29.
RAISE BORING TOOL WITH A DIGITAL IDENTIFICATION TAG
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/10 - Roller bits with roller axle supported at both ends
E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
An end piece, a drill pipe assembly and method. The drill pipe assembly (13) is for rotary drilling and DTH drilling and comprises a drill pipe (14) provided with end pieces (15, 16) at its opposite ends. For the mounting of the end pieces shrink fit and welding is implemented. For improving the shrink fit contact surfaces (22, 24) between the components are tapered.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A rock drill insert comprising a body of cemented carbide comprising hard constituents of WC in a binder phase comprising cobalt; wherein the cemented carbide comprises 4-18 wt% Co; Cr such that the Cr/Co mass ratio in the bulk of the body is 0.04 -0.19; a balance of WC and any unavoidable impurities; wherein content of the binder phase of the cemented carbide is substantially equal throughout the rock drill insert; characterized in that: said insert has a corrected CoM/wt% Co ratio between 0.70-0.81 and the insert is substantially free of eta-phase; wherein said corrected CoM/wt% Co ratio is calculated according to: Corrected CoM/wt% Co = (magnetic-% Co + 1.13 * wt% Cr) / wt% Co where magnetic-% Co is the weight percentage of magnetic Co and wt-% Co and wt-% Cr are the weight percentage of Co and Cr in the cemented carbide, respectively.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A drill bit includes a shank and drill bit head, which are both centered on a longitudinal axis, a gauge, and a front face with a peripheral edge adjacent to the gauge. An area within the peripheral edge defines a total area of the front face. The front face includes a central island at its radially innermost section, a plurality of peripheral platforms at its radially outermost section adjacent to the peripheral edge, and a recessed section positioned radially between the central island and the peripheral platforms. The central island and the peripheral platforms are axially raised compared to the recessed section. A plurality of inner front inserts are positioned on the central island and at least one outer front insert is positioned on each of the peripheral platforms. The area of the recessed section is >62% of the area of the total area of the front face.
A drill rod or tube comprising a hollow elongate main length section having a longitudinal axis extending axially between a male end at an axially forward end and a female end at an axially rearward end; the male end comprising a male connecting means and a radially projecting shoulder that axially separates the main length section and the male connecting means; the shoulder comprising a peripheral surface that may have a greater outer diameter than the outer diameter of the main length section: wherein at least part of the peripheral surface of the rod or tube has at least one laser cladding layer positioned thereon.
rod). The male end includes a spigot having a base projecting axially from a shoulder that axially separates the spigot and the central rod portion. The female end includes a sleeve portion configured to fit to the spigot. The base has an outer thread and the sleeve portion has an inner thread, the inner thread corresponding to the outer thread such that the inner thread of the sleeve portion is attachable to the outer thread of the base of the spigot of a further drill string rod of the assembly.
A shank adapter to form part of a drilling assembly, the shank adapter comprising a longitudinal axis; an external surface; an internal surface; a threaded part provided at a forward end and a plurality of splines provided at a rearward end; and a machine part extending axially between the threaded part and the splines; wherein at least a part of the external surface is coated with a first corrosion protection layer comprising nickel; characterized in that: at least part of the first corrosion protection layer is coated with a polymer based sealant top layer.
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
C23C 18/32 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals
E21B 17/03 - CouplingsJoints between drilling rod or pipe and drill motor, e.g. between drilling rod and hammer
39.
NICKEL BASED WEAR AND CORROSION PROTECTED SHANK ADAPTER
A shank adapter to form part of a drilling assembly, the shank adapter comprising a longitudinal axis; an external surface; an internal surface; a threaded part provided at a forward end and a plurality of splines provided at a rearward end; and a machine part extending axially between the threaded part and the splines; wherein at least a part of the external surface is coated with a first corrosion protection layer comprising nickel; characterized in that: at least part of the first corrosion protection layer is coated with a polymer based sealant top layer..
E21B 17/03 - CouplingsJoints between drilling rod or pipe and drill motor, e.g. between drilling rod and hammer
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
C23C 18/32 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals
A sintered cemented carbide insert for mining or cutting applications comprising: a first zone comprising: 3-18 wt% binder phase; unavoidable impurities; a balance of tungsten carbide having a mean grain size of between 0.5-20 µm; and a second zone comprising: the same amount, within +/-3 wt%, of binder phase as the first zone; any unavoidable impurities; a balance of tungsten carbide having an average grain size of between 0.5-20 µm; wherein the first zone and the second zone (6) are adjacent to each other; wherein the average WC grain size in the first zone is different to the average WC grain size in the second zone; and the binder phase in both the first zone and the second zone comprise between 2-15 wt% Cr measured as a fraction of the total binder content.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
A sintered cemented carbide insert for mining or cutting applications comprising: a first zone comprising: 3-18 wt% binder phase; unavoidable impurities; a balance of tungsten carbide having a mean grain size of between 0.5-20 µm; and a second zone comprising: the same amount, within +/-3 wt%, of binder phase as the first zone; any unavoidable impurities; a balance of tungsten carbide having an average grain size of between 0.5-20 µm; wherein the first zone and the second zone (6) are adjacent to each other; wherein the average WC grain size in the first zone is different to the average WC grain size in the second zone; and the binder phase in both the first zone and the second zone comprise between 2-15 wt% Cr measured as a fraction of the total binder content.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A cemented carbide insert for mining or rock cutting applications comprising an at least partially flat base and a working tip portion; characterized in that: the insert further comprises at least one identification (ID) marker encoded with one-dimensional or two- dimensional optical machine-readable code.
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
A drill component for percussive drilling comprising: a forward end and a rearward end; at least one coupling section for coupling to another drill string component or a processing tool; and a main body; characterized in that: the drill component further comprises at least one identification marker.
A rock drill bit for percussive drilling comprising a bit head; a shank; a central flushing channel; at least one flushing port for delivering flushing media to the face of the bit head via a flushing hole; wherein at least one of the flushing port(s) has at least one indentation in its peripheral wall and wherein there is an identification marker positioned in the indentation.
A rock drill bit for percussive drilling comprising a central flushing channel wherein the central flushing channel has an endmost surface; wherein the endmost surface of the flushing channel has an angle α measured between a first surface and a second surface on a longitudinal cross section of the bit; there is at least one identification marker positioned on the end most surface of the central flushing channel.
A female portion is arranged to form part of a thread joint for a percussive drilling tool including a mounting sleeve having an axial end, wherein the mounting sleeve surrounds an internal cavity having an axial inner wall at the opposing end of the mounting sleeve compared to the axial end. The mounting sleeve has at least one substantially cylindrical internally threaded section having a length L1, a thread entrance positioned towards the axial end and a thread exit positioned towards the axial inner wall. A thread clearance section is positioned between the axial inner wall and the thread exit and has a length L2 and a diameter D1. A guiding section is positioned between the thread entrance and the axial end of the sleeve and has a length, L3, wherein 0 mm
A drilling component (200) comprising a first end portion (260) configured to be arranged to face the a first section of a drill string, wherein the first end portion (260) comprises a first interconnecting portion (210) configured to engage a corresponding interconnecting portion of the first section of the drill string. The drilling (component 200) further comprises a hollow interior (230) configured to extend along a length direction (140) of the drill string and to form a part of a passage through the drill string. The drilling component (200) comprises a wall (220) defining the hollow interior (230), wherein an area of a first cross-section (240) of the wall (220) is smaller than an area of a second cross-section (250) of the wall (220) and wherein the first cross-section (240) is arranged between the second cross-section 240 and the first end portion (260).
A drilling component (200) comprising a first end portion (260) configured to be arranged to face the a first section of a drill string, wherein the first end portion (260) comprises a first interconnecting portion (210) configured to engage a corresponding interconnecting portion of the first section of the drill string. The drilling (component 200) further comprises a hollow interior (230) configured to extend along a length direction (140) of the drill string and to form a part of a passage through the drill string. The drilling component (200) comprises a wall (220) defining the hollow interior (230), wherein an area of a first cross-section (240) of the wall (220) is smaller than an area of a second cross-section (250) of the wall (220) and wherein the first cross-section (240) is arranged between the second cross-section 240 and the first end portion (260).
A wear support assembly includes a wear pad arranged on top of a support plate, wherein the support plate has a lower surface for connecting to a raise boring tool and both the wear pad and the support plate have at least one hole for receiving a bolt to connect the wear pad to the support plate. Also, a raise boring tool for raise boring operations includes a reamer head having a body, a plurality of roller cutters connected to the body using a holder, a nose or drive stem connected the body, and at least one wear support assembly, wherein each support plate is connected directly to the raise boring tool and each wear pad is radially or perpendicularly bolted to each support plate.
E21B 10/28 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
E21B 10/50 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
50.
METHOD OF TREATING A CEMENTED CARBIDE MINING INSERT
A method of redistributing the binder phase of a cemented carbide mining insert having a WC hard-phase component, optionally one or more further hard-phase components and a binder includes the steps of providing a green cemented carbide mining insert; applying at least one binder puller selected from a metal oxide or a metal carbonate to only at least one local area of the surface of the green cemented carbide insert; sintering the green carbide mining insert to form a sintered cemented carbide insert; and subjecting the sintered cemented carbide insert to dry tumbling process executed at an elevated temperature of or above 100° C., preferably at a temperature of or above 200° C., more preferably at a temperature of between 200° C. and 450° C.
E21C 35/183 - Mining picksHolders therefor with inserts or layers of wear-resisting material
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
SANDVIK MINING AND CONSTRUCTION AUSTRALIA PTY LTD (Australia)
Inventor
Vallati, Osvaldo
Abstract
A driver socket arranged for installation of a ground reinforcement bolt, wherein the driver socket includes a rotation sensor arranged for measuring rotation of the driver socket 1. The driver socket includes a processing unit configured to receive a signal from the rotation sensor and to derive, based on the signal from the rotation sensor, rotation data related to the number of revolutions the driver socket has been rotated.
A down the hole drilling assembly has a top end coupled to a drill string and a bottom cutting end. The drilling assembly includes a piston arranged moveably inside a casing with a piston nose positioned at an axially bottom end and a top working chamber at a top end, a bottom working chamber at the bottom end, a driver sub having axially extending driver sub splines on an internal surface, a drill bit having an axially extending central bore including an elongate shank provided with axially extending shank splines on its outer surface for engagement with the driver sub splines to form a spline area, a guide sleeve forming a seal with the piston nose, the guide sleeve having an inner and outer surface, and at least one air passageway extending through the guide sleeve for fluidly connecting the bottom chamber to the spline area to provide lubrication thereto.
A sub-assembly, rock drilling rig and method of absorbing vibrations in rotary and DTH drilling. The sub-assembly (8) is for transmitting torque and axial forces be-tween a rotating head (5) and a drilling tool (7). There is an axial floating arrangement (15) for providing an allowed limited axial relative movement between coupling elements of the sub-assembly. The arrangement comprises several axial drive pins (16) for transmitting the torque. First ends (16a) of the drive pins are mounted immovably and second ends (16b) are mounted with clearances (20), whereby the drive pins can bend (33) under torsional shocks. Thus, the drive pins serve as torsional dampening elements.
F16D 3/64 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
F16D 3/74 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other flexible material
F16D 3/76 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
SANDVIK MINING AND CONSTRUCTION AUSTRALIA PTY LTD (Australia)
Inventor
Weaver, Steven
Vallati, Osvaldo
Rataj, Mietek
Abstract
A tension indication device for a rock bolt includes a support washer, a cover member having a central hole for receiving a trailing portion of the rock bolt, and an indicator substance provided in a first space in the cover member or in a recess in the support washer for facing the nut. Upon rotation of the nut, indicator substance is forced out of the first space such that the indicator substance is visible at inspection of the rock bolt, thereby indicating that the rock bolt has been tensioned.
A female portion to form part of a thread joint for a percussive drilling tool comprising: a mounting sleeve; wherein the mounting sleeve has at least one substantially cylindrical internally threaded section having a length, L1, a thread entrance towards an axial end and a thread exit towards the axial inner wall; wherein the threaded section has a thread form including crests, roots, contact flanks, and non-contact flanks, and having a pitch length, L4, between two axially neighbouring crests and an inner diameter, D2, radially between the roots; a thread clearance section positioned between the axial inner wall and the thread exit having a length L2 and a diameter D1; a guiding section positioned between the thread entrance and the axial end of the sleeve having a length, L3; characterized in that: the pitch length, L4, is between 12.8 ? 14.5 mm.
A drill string including an elongate hollow main length section and a male spigot portion provided at the second end and having an externally threaded section and a non-threaded shank positioned axially intermediate the main length section and the threaded section. The shank includes a transition section positioned adjacent the main length section or a radially projecting shoulder at the second end. The transition section has an outside diameter that increases in a direction from the male spigot portion to the main length section or the shoulder. The cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis has a segment of an ellipse having semi-major axis (a) and a semi-minor axis (b), wherein the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b
A roller cutter for a drill head for raise boring. The roller cutter having a shaft with a longitudinal center line, a hub rotatably mounted on the shaft, and a seal retainer located between the axial ends of the hub and the shaft at least arranged at one end of the roller cutter. The seal retainer supports a primary cutter seal providing sealing between the shaft and the hub in both axial and radial directions. A secondary cutter seal is located between the seal retainer and the hub, such that the secondary cutter seal provides sealing in the axial direction.
A method of treating a sintered mining insert including cemented carbide includes the step of subjecting the mining insert to a surface hardening process. The surface hardening process is executed at an elevated temperature of or above 100° C. A mining insert is also provided, wherein the HV1 Vickers hardness measurement increase (HV1%) from the surface region, measured as an average of HV1 measurements taken at 100 μm, 200 μm and 300 μm below the surface, compared to the HV1 Vickers hardness measured in the bulk (HV1bulk), is at least 8.05-0.00350×HV1bulk.
C21D 7/04 - Modifying the physical properties of iron or steel by deformation by cold working of the surface
C21D 9/22 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for drillsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for milling cuttersHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for machine cutting tools
SANDVIK MINING AND CONSTRUCTION AUSTRALIA PTY LTD (Australia)
Inventor
Vallati, Osvaldo
Abstract
A sensor assembly for a rock bolt, wherein the rock bolt includes a central rod, a split tube and a wedge anchor assembly fitted around the central rod, a rock plate, and a nut for attachment to an outer end of the central rod. The sensor assembly includes a distance sensor, a bracket for attaching the distance sensor to an outer portion of the split tube, an elongate spacing member configured to be fitted around the split tube between the nut and the rock plate to keep the nut and the rock plate spaced apart. The spacing member has an opening extending along at least a portion of the length thereof, the opening being sized large enough to allow movement of the bracket along a portion of the length of the spacing member with the distance sensor attached to the outer portion of the split tube by the bracket.
A sintered cemented carbide insert for mining or cutting applications comprising: a mean WC grain size of between 0.8 ? 18 µm; a binder phase in a weight between 4 - 18 wt%; gamma phase with the cubic gamma phase precursors in a weight of between 0.8 - 10 wt%; any unavoidable impurities and a balance of WC; and wherein the difference between the hardness at any point 0.3 mm from the surface of the insert and the hardness of the bulk is at least 25 HV3, wherein hardness is measured according to ISO EN6507 and a method of producing said cemented carbide.
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
E21B 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
62.
CEMENTED CARBIDE INSERT FOR MINING OR CUTTING APPLICATIONS COMPRISING GAMMA PHASE CARBIDE
A sintered cemented carbide insert for mining or cutting applications comprising: a mean WC grain size of between 0.8 – 18 µm; a binder phase in a weight between 4 - 18 wt%; gamma phase with the cubic gamma phase precursors in a weight of between 0.8 - 10 wt%; any unavoidable impurities and a balance of WC; and wherein the difference between the hardness at any point 0.3 mm from the surface of the insert and the hardness of the bulk is at least 25 HV3, wherein hardness is measured according to ISO EN6507 and a method of producing said cemented carbide.
B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
E21B 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
A shank adapter to form part of a drilling assembly wherein at least a part of the external surface has at least one laser cladding layer for corrosion and / or wear protection and a method of providing corrosion protection on a shank adapter wherein a corrosive and / or wear protection layer is applied to at least one part of the external surface(s) of the shank adapter using laser cladding.
A method of treating a cemented carbide insert for rock drilling and mineral cutting comprising a core of cemented carbide and a surface zone of cemented carbide wherein the core further contains eta-phase and the surface zone is free of eta-phase, and wherein the mining insert is subjected to a surface hardening process wherein the surface hardening process is executed at an elevated temperature of or above 50°C.
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
A method of treating a cemented carbide insert for rock drilling and mineral cutting comprising a core of cemented carbide and a surface zone of cemented carbide wherein the core further contains eta-phase and the surface zone is free of eta-phase, and wherein the mining insert is subjected to a surface hardening process wherein the surface hardening process is executed at an elevated temperature of or above 50°C.
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
66.
Visual indicator for correct torsion of a rock bolt
Sandvik Mining and Construction Australia Pty Ltd (Australia)
Inventor
Weaver, Steven
Rataj, Mieczyslaw
Vallati, Osvaldo
Abstract
A rotation indication device for a rock bolt including a central rod with a threaded trailing portion. The rotation indication device includes a blind nut having a threaded central recess for engaging the threaded trailing portion and a visual indication means provided at a bottom portion of the central recess and configured such that upon movement of the threaded trailing portion of the central rod into the bottom portion of the central recess, the central rod forces at least a portion of the visual indication means to move through a passage in the blind nut between the bottom portion of the central recess and the outside of the blind nut.
A rotary cone rock bit having a forward end and a rearward end, comprising: a bit body including a plurality of legs extending therefrom, each of said legs having an outer surface that includes a leading surface, a centre panel surface, and a trailing surface and at least one nozzle; and a roller cone rotatably supported on each of said legs; whereby the rotary cone bit further comprises at least an identification tag for storing product identification information and / or drilling operation information; wherein the at least one identification tag is positioned on the trailing surface of at least one of the legs.
A method for recovery at least one cemented carbide body from a component comprising the steps of: first clamping the component in a clamping device; and then simultaneously or cyclically heating and vibrating the component to dislodge the at least one cemented carbide body from the component. Also, an apparatus for recovery of at least one cemented carbide body from a component having an axial axis comprising: a vibrating device for vibrating the component in a vertical direction with respect to the axial axis; a clamping device for positioning the component so that the cemented carbide bodies are vibrated in a vertical direction with respect to the axial axis; at least one heating device for heating of the component at the same time as vibrating the component.
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
69.
METHOD AND APPARATUS FOR EXTRACTION OF CEMENTED CARBIDE BODIES FROM A COMPONENT
A method for recovery at least one cemented carbide body from a component comprising the steps of: first clamping the component in a clamping device; and then simultaneously or cyclically heating and vibrating the component to dislodge the at least one cemented carbide body from the component. Also, an apparatus for recovery of at least one cemented carbide body from a component having an axial axis comprising: a vibrating device for vibrating the component in a vertical direction with respect to the axial axis; a clamping device for positioning the component so that the cemented carbide bodies are vibrated in a vertical direction with respect to the axial axis; at least one heating device for heating of the component at the same time as vibrating the component.
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A rotary cone rock bit having a forward end and a rearward end, comprising: a bit body including a plurality of legs extending therefrom, each of said legs having an outer surface that includes a leading surface, a centre panel surface, and a trailing surface and at least one nozzle; and a roller cone rotatably supported on each of said legs; whereby the rotary cone bit further comprises at least an identification tag for storing product identification information and / or drilling operation information; wherein the at least one identification tag is positioned on the trailing surface of at least one of the legs.
A rock bolt for installation within a bore formed in rock strata having an elongate shaft with the leading end for installation into the bore and a trailing end projecting from an open end of the bore. A locking nut is threadably attached to the trailing end and is arranged to display product information and the like at a display face. The display face is recessed axially into the nut to provide protection against damage to the display face that may otherwise render the information unreadable.
A hammer drill assembly for coupling to a drill string wherein the drill bit is releasably attached to the driver sub via a retaining sleeve; wherein the retaining sleeve comprises a body that extends between a ring at its forward end and a plurality of tips at its rearward end. Also, methods of attaching and detaching a drill bit from the rest of the assembly.
A hammer drill assembly for coupling to a drill string wherein the drill bit is releasably attached to the driver sub via a retaining sleeve; wherein the retaining sleeve comprises a body that extends between a ring at its forward end and a plurality of tips at its rearward end. Also, methods of attaching and detaching a drill bit from the rest of the assembly.
A coupling for connecting downhole tubulars, comprising a tubular body; a female coupling part; a male coupling part; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body, wherein: the at least one thread has a thread-form including a crest, a root, and a pair of flanks, the crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling; the male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf; characterized in that: the ratio of the male thread camber radius to the female thread camber radius (Rbm/ Rbf) is between <1.0 and ?1.1.
A coupling for connecting downhole tubulars, comprising a tubular body; a female coupling part; a male coupling part; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body, wherein: the at least one thread has a thread-form including a crest, a root, and a pair of flanks, the crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling; the male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf; characterized in that: each camber radius (Rb, Rb-T) is between 700 - 1900 mm.
The present disclosure relates to a method of making a cemented carbide mining insert, a cemented carbide mining insert with having a chemical and hardness gradient and to the use thereof. The method includes the steps of providing a green mining insert compact formed from a first powder including a WC-based hard phase, optionally one or more further hard-phase components and a binder, applying a second powder including a grain refiner compound and/or a carbon based grain growth promoter to at least one portion of a surface of the green mining insert compact, and sintering the green mining insert compact to produce a cemented carbide mining insert, wherein the first powder additionally includes Cr, in an amount such that the mass ratio of Cr/binder is of 0.01-0.3.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
78.
COUPLING FOR CONNECTING DOWNHOLE TUBULARS WITH IMPROVED STRESS DISTRIBUTION
A shank adapter to form part of a drilling assembly, the shank adapter comprising: a main body extending axially between a first end and a second end; a male spigot portion provided at the second end having an externally threaded section and a non-threaded shank positioned axially intermediate the main body and the threaded section; a radially projecting shoulder positioned axially between the main body and the male spigot portion; the shank having a transition section positioned adjacent to the shoulder at the second end, the transition section having an outside diameter that increases in a direction from the spigot portion to the shoulder; wherein the cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) and an exponential factor (n) according to the equation: (formula (I)), characterised in that the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b
A drill bit for percussion drilling includes a drill bit body including a front surface. The front surface includes a first circular area arranged transverse and coaxially to the axis of the drill body, a second area surface surrounding the first area surface, and a third area surface surrounding the second area surface. A number of buttons are arranged in the second and third area surfaces. The button body of each button has a forward end surface. The buttons are arranged in circular recesses extending substantially transverse from the second surface and third area surface into the drill bit body. The recesses have a radius corresponding to the button body radius and a depth corresponding to the length of the button body, such that the button bodies are fitted within the drill bit body with the forward end surface exposed in the second and third area surfaces.
A shank adapter to form part of a drilling assembly, the shank adapter comprising: a main body extending axially between a first end and a second end; a male spigot portion provided at the second end having an externally threaded section and a non-threaded shank positioned axially intermediate the main body and the threaded section; a radially projecting shoulder positioned axially between the main body and the male spigot portion; the shank having a transition section positioned adjacent to the shoulder at the second end, the transition section having an outside diameter that increases in a direction from the spigot portion to the shoulder; wherein the cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) and an exponential factor (n) according to the equation: (formula (I)), characterised in that the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b
A rock drill component to form part of a drilling assembly, the rock drill component comprising: a main body; a hexagonal shank provided at one end of the rock drill component; a radially projecting shoulder positioned axially between the main body and the hexagonal shank; wherein there is a transition section increases in diameter in a direction from the hexagonal shank to the shoulder; wherein the cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) and an exponential factor (n) according to the equation (I) characterised in that the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b
A coated cutting tool is provided. The cutting tool is CVD coated and has a substrate of cemented carbide, wherein a metallic binder in the cemented carbide includes Ni. The CVD coating has an inner layer of TiN and a subsequent layer of TiCN and a layer of Al2O3 located between the TiCN layer and an outermost surface of the coated cutting tool.
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer software and applications relating to
the management of rock tools; downloadable computer software
and applications for collecting, organizing, analyzing,
monitoring, tracking, recording and reporting operational
data related to machines, equipment and tools used in the
mining and construction industry; downloadable computer
software and applications for measuring and monitoring
performance and productivity for tools used in the mining
and construction industry; downloadable computer software
and applications for recording, reporting and creation of
operational data reports used in the mining and construction
industry; downloadable computer software and applications
for the fault diagnosis, troubleshooting and preventive
maintenance of machines and equipment used in mining and
construction industry; downloadable computer software
providing predictions, notifications, analysis, service
reminders, sales recommendations and reports related to
performance optimization in mining and construction
industry; downloadable computer software and applications
relating the analysis of worn, damaged and discarded tools;
simulators consisting of computer hardware and downloadable
software for training purposes; simulators for training
personnel in the operation of rock tools and drilling
performance; interactive computerized simulators that
simulate how different tools and settings affect drilling
performance; computer hardware, downloadable computer
software and applications for testing, analyzing and
simulation of performance of tools used in the mining and
construction industry; downloadable electronic reports and
publications relating to rock tools and drilling
performance; downloadable electronic reports and
publications in the fields of mining and construction;
simulators consisting of non-downloadable computer software
for training purposes. Computerised stock management; electronic stock management
services; stock control services; compilation and
systemization of information and reports relating to rock
tools and drilling performance into computer databases;
management of computer databases relating to reports in the
fields of mining and construction; information, advisory and
consultancy services relating to all of the aforesaid. Education and training in the fields of mining and
construction; providing educational seminars in the fields
of mining and construction; provision of online training
relating to rock tools and drilling performance; training
services provided via simulators in the fields of rock tools
and drilling performance; providing online electronic
publications, not downloadable; information, advisory and
consultancy services relating to all of the aforesaid. Platform as a service [PaaS] relating to the management of
rock tools; platform as a service [PaaS] relating to the
mining and construction industry; platform as a service
[PaaS], namely, providing a non-downloadable computer
platform that enables operators, mine managers and
salesforce to track, record and report how different tools
are used and consumed and how much they produce in the mine;
software as a service [SaaS] relating to the management of
rock tools; software as a service [SaaS] relating to the
mining and construction industry; software as a service
(SaaS), namely, providing non-downloadable computer software
used to tools performance; scientific and technological
services and research and design relating thereto;
industrial analysis, industrial research and industrial
design services; technical analysis services relating to the
analysis of worn, damaged and discarded tools; design and
development of computer software for use in the mining and
rock processing industry; maintenance of computer software
for use in the mining construction industry; technical
support services, namely, troubleshooting in the nature of
diagnosing problems with computer hardware and software for
use in the mining construction industry; providing temporary
use of non-downloadable computer software and applications
relating to the management of rock tools; providing
temporary use of non-downloadable computer software and
applications for collecting, organizing, analyzing,
monitoring, tracking, recording and reporting operational
data related to machines, equipment and tools used in the
mining and construction industry; providing temporary use of
non-downloadable computer software and applications for
measuring and monitoring performance and productivity for
tools used in the mining and construction industry;
providing temporary use of non-downloadable computer
software and applications for recording, reporting and
creation of operational data reports used in the mining and
construction industry; providing temporary use of
non-downloadable computer software and mobile phone apps for
the fault diagnosis, troubleshooting and preventive
maintenance of machines and equipment used in mining and
construction industry; providing temporary use of
non-downloadable computer software providing predictions,
notifications, analysis, service reminders, sales
recommendations and reports related to performance
optimization in mining and construction industry; providing
temporary use of non-downloadable computer software and
applications for testing, analyzing and simulation of
performance of tools used in the mining and construction
industry; providing temporary use of non-downloadable
computer software and applications relating the analysis of
worn, damaged and discarded tools; preparation of scientific
or technical reports for the mining and construction
industry; preparation of scientific or technical reports
relating to rock tools and drilling performance;
information, advisory and consultancy services relating to
all of the aforesaid.
A rotary drill bit comprising at least one rotary cone and at least one leg wherein at least one section of the rotary cone and / or the leg is a substrate that has a hardfaced layer applied thereto characterized in that the substrate dilution of the steel into the hardfaced layer is less than 5% as measured by comparing the ratio between a substrate melted area to a total melted area, wherein the substrate melted area is the transversal cross-sectional area of the rotary drill bit that has been melted by the hardfacing process and wherein the total melted area is the combined transversal cross-sectional area of the hardfacing layer and the substrate melted area.
A percussive drill bit comprising a sleeve section and bit section having a longitudinal axis; wherein the sleeve section has an axial end at the opposing end of the drill bit compared to the bit section from which a generally conically shaped internal cavity extends from for receiving a conically shaped drill rod to form a conical frictional connection; wherein the cavity has a conical region nearest to the axial end and a cylindrical region nearest to the bit section; characterised in that: there is connection section joining the conical region to the cylindrical region; the conical region has a straight tapered region with a starting point adjacent to the connection region; wherein the connection section has at a first curved connection section having a first radius, CR1, wherein its tangent,CT1, to a central point along the first curved connection section is positioned at a first distance, CD1, from the taper region starting point.
A drill string rod (1) to form part of an assembly (10) of connected such drill string rods (1, 1b), the drill string rod (1) comprising: an elongate central rod portion (2) extending axially between a male end (3) and a female end (4), wherein the central rod portion (2) is hollow-cylindrical defined by an inner first diameter (drod) and an outer second diameter (Drod), wherein the male end (3) comprises a spigot (5),wherein the spigot (5) comprises a base (6) projecting axially from a shoulder (7) that axially separates the spigot (5) and the central rod portion (2), wherein the female end (4) comprises a sleeve portion (8) configured to fit to the spigot (5), wherein the base (6) is provided with an outer thread and wherein the sleeve portion (8) is provided with an inner thread, wherein the inner thread corresponds to the outer thread such that the inner thread of the sleeve portion (8) is attachable to the outer thread of the base (6) of the spigot (5) of a further drill string rod (1b) of the assembly (10), wherein, in a radial plane (P) to the longitudinal axis (9) of the drill string rod (1), the base (6) of the spigot (5) is defined by an outer third diameter (Dspigot) and an inner fourth diameter (dspigot) and the sleeve portion (8) is defined by an outer fifth diameter (Dsleeve) and an inner sixth diameter (dsleeve), wherein the second diameter (Drod) is between 30 and 60 mm, and wherein the six diameters mentioned are selected within specific constraints.
A down-the-hole drilling assembly activated by fluid under pressure includes a casing having an axially rearward and forward end, a piston arranged movably inside the casing, a plurality of fluid passages for feeding and discharging pressurized fluid into and out of a working chamber for generating reciprocating movement of the piston, a drill bit at the forward end and provided with an anvil facing towards the piston for receiving impacts therefrom and an annular drive sub surrounding at least a portion of a shank and cooperating with the bit to form fluid passages extending length-wise along the shank. The drive sub has a concave arcuate groove extending circumferentially to form a chamber for collecting fluid from the hammer exhaust and redistributing a volume of the collected fluid from channels formed between complimentary splines of the drive sub and splines of the bit to flushing holes arranged in the bit.
A drill bit comprising a shank and drill bit head which are both centred on a longitudinal axis; wherein the drill bit head has a gauge and a front face with a peripheral edge which is adjacent to the gauge, the peripheral edge having a diameter D1, the area within the peripheral edge defining the total area of the front face; wherein the front face having a central island at its radially innermost section, a plurality of peripheral platforms at its the radially outermost section adjacent to the peripheral edge and a recessed section positioned radially between the central island and the peripheral platforms; wherein the central island and the peripheral platforms are axially raised in comparison to the recessed section; wherein a plurality of inner front inserts are positioned on the central island and at least one outer front insert is positioned on each of the peripheral platforms; characterized in that: the area of the recessed section is > 62% of the area of the total area of the front face.
A disc cutter for a cutting unit used in a tunnel boring machine and a method of producing the same. The disc cutter includes an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body, which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body. A metallic interlayer is disposed between at the least one disc body and the at least one cutting part, the elements of which form the diffusion bonds.
E21D 9/10 - Making by using boring or cutting machines
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer software and applications relating to the management of rock tools; downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; downloadable computer software and applications for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; downloadable computer software and applications relating the analysis of worn, damaged and discarded tools; simulators consisting of computer hardware and downloadable software for training in the operation of rock tools and drilling performance; simulators for training personnel in the operation of rock tools and drilling performance; interactive computerized simulators that simulate how different tools and settings affect drilling performance; computer hardware, downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; downloadable electronic reports and publications in the nature of articles relating to rock tools and drilling performance; downloadable electronic reports and publications in the nature of articles in the fields of mining and construction; simulators consisting of computer hardware for use with non-downloadable computer software for training in the operation of rock tools and drilling performance Computerised inventory management; electronic inventory management services; inventory control services; compilation and systemization of information and reports relating to rock tools and drilling performance into computer databases; management of computer databases relating to reports in the fields of mining and construction; information, advisory and consultancy services relating to all of the aforesaid Educational courses and training in the fields of mining and construction; providing educational seminars in the fields of mining and construction; provision of online training relating to rock tools and drilling performance; training services provided via simulators in the fields of rock tools and drilling performance; providing online electronic publications in the nature of reports and articles, not downloadable in the fields of mining and construction; information, advisory and consultancy services related to all of the aforesaid Platform as a services (PaaS) featuring computer software platforms for the management of rock tools; platform as a services (PaaS) featuring computer software platforms for the mining and construction industry, namely, for training in the field of mining and construction tools; platform as a service (PaaS) services featuring temporary use of an online non-downloadable computer platform that enables operators, mine managers and salesforce to track, record and report how different tools are used and consumed and how much they produce in the mine; software as a service (SaaS) featuring computer software for the management of rock tools; software as a service (SaaS) featuring computer software for the mining and construction industry, namely, for training in the field of mining and construction tools; software as a service (SaaS) services, namely, hosting temporary use of online non-downloadable computer software for use by others for use in tracking tool performance; scientific and technological services and research and design relating thereto, namely, scientific and technological research in the field of the design of mining and construction machinery; industrial analysis of the design of mining and construction tools and machinery, industrial research in the field of the design of mining and construction machinery and tools, and industrial design services; technical product design analysis services relating to the analysis of worn, damaged and discarded tools; design and development of computer software for use in the mining and rock processing industry; maintenance of computer software for use in the mining construction industry; technical support services, namely, troubleshooting in the nature of diagnosing problems with computer hardware and software for use in the mining construction industry; providing temporary use of non-downloadable computer software and applications for the management of rock tools; providing temporary use of non-downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; providing temporary use of non-downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; providing temporary use of non-downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; providing temporary use of non-downloadable computer software and mobile phone apps for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; providing temporary use of non-downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; providing temporary use of non-downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; providing temporary use of nondownloadable computer software and applications for the analysis of worn, damaged and discarded tools; preparation of scientific and technological reports for the mining and construction industry; preparation of scientific and technological reports relating to rock tools and drilling performance; information, advisory and consultancy services relating to all the aforesaid
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Downloadable computer software and mobile application software for operating, controlling, and managing mining tools in the field of rock drilling; downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; downloadable computer software and applications for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; downloadable computer software and mobile application software for analysing and evaluating of worn, damaged and discarded mining tools in the field of rock drilling; simulators consisting of computer hardware and downloadable computer training software containing topics of instruction in the fields of rock drilling performance and operating mining tools for rock drilling; simulators for training personnel in the operation of rock tools and drilling performance; interactive computerized simulators in form of computer hardware and software for use in predicting and simulating the effect of mining tools settings on rock drilling performance in the field of rock drilling; computer hardware, downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; downloadable electronic reports and publications relating to rock tools and drilling performance; downloadable electronic reports and publications in the fields of mining and construction; simulators consisting of computer hardware and non-downloadable computer training software containing topics of instruction in the fields of rock drilling performance and operating mining tools for rock drilling. (1) Computerised stock management; electronic stock management services; stock control services; compilation of statistics and systemization of information and reports into computer databases in the fields of rock drilling tools and rock drilling performance; management of computer databases relating to reports in the fields of mining and construction; information, advisory and consultancy services relating to all of the aforesaid.
(2) Education and training in the fields of mining and construction; providing educational seminars in the fields of mining and construction; provision of online training in the field of rock drilling operations and rock drilling performance; arranging and providing training services in the field of rock drilling operations and rock drilling performance provided via simulators; providing online non-downloadable electronic publications in the nature of reports and articles in the fields of mining and construction and rock drilling; information, advisory and consultancy services relating to all of the aforesaid.
(3) Platform as a service [PaaS] featuring computer software for operating, controlling, and managing mining tools in the field of rock drilling; platform as a service [PaaS] featuring computer software for operating mining tools for use in the fields of mining and the construction industry; platform as a service [PaaS], namely, providing a non-downloadable computer platform that enables operators, mine managers and salesforce to track, record and report how different tools are used and consumed and how much they produce in the mine; software as a service [SaaS] featuring computer software for operating, controlling, and managing mining tools in the field of rock drilling; software as a service [SaaS] featuring computer software for operating mining tools for use in the fields of mining and construction industry; software as a service (SaaS), namely, providing non-downloadable computer software for managing and controlling the performance of mining tools in the field of rock drilling; scientific and technological services and research and design relating thereto, namely, scientific and technological research in the field of the design of industrial machinery for use in mining and construction; industrial analysis and research in the fields of mining engineering and construction and industrial design services; conducting technical analysis services, namely, analysis and evaluation of worn, damaged and discarded mining tools for rock drilling; design and development of computer software for use in the mining and rock processing industry; maintenance of computer software for use in the mining construction industry; technical support services, namely, troubleshooting in the nature of diagnosing problems with computer hardware and software for use in the mining construction industry; providing temporary use of non-downloadable computer software and computer application software for managing and controlling mining tools in the field of rock drilling; providing temporary use of non-downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; providing temporary use of non-downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; providing temporary use of non-downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; providing temporary use of non-downloadable computer software and mobile phone apps for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; providing temporary use of non-downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; providing temporary use of non-downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; providing temporary use of non-downloadable computer software and computer applications software for analysing and evaluating of worn, damaged and discarded mining tools in the field of rock drilling; preparation of scientific or technical reports for the mining and construction industry; preparation of scientific and technical reports in the field of mining tools for analysing rock drilling performance; information, advisory and consultancy services relating to all of the aforesaid.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer software and applications relating to the management of rock tools; Downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; Downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; Downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; Downloadable computer software and applications for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; Downloadable computer software and applications relating the analysis of worn, damaged and discarded tools; Simulators consisting of computer hardware and downloadable software for training purposes; Simulators for training personnel in the operation of rock tools and drilling performance; interactive computerized simulators that simulate how different tools and settings affect drilling performance; Computer hardware, downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; Downloadable electronic reports and publications relating to rock tools and drilling performance; Downloadable electronic reports and publications in the fields of mining and construction. Computerised stock management; electronic stock management services; stock control services; Compilation and systemization of information and reports relating to rock tools and drilling performance into computer databases; management of computer databases relating to reports in the fields of mining and construction; information, advisory, support and consultancy services relating to all of the aforesaid. Education and training in the fields of mining and construction; Providing educational seminars in the fields of mining and construction; Provision of online training relating to rock tools and drilling performance; Training services provided via simulators in the fields of rock tools and drilling performance; Providing online reports and publications; information, advisory, support and consultancy services relating to all of the aforesaid. Platform as a Service [PaaS] relating to the management of rock tools; Platform as a Service [PaaS] relating to the mining and construction industry; Platform as a Service [PaaS], namely, providing a non-downloadable computer platform that enables operators, mine managers and salesforce to track, record and report how different tools are used and consumed and how much they produce in the mine; Software as a Service [SaaS] relating to the management of rock tools; Software as a Service [SaaS] relating to the mining and construction industry; Software as a service (SaaS), namely, providing non-downloadable computer software used to tools performance; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; Technical analysis services relating to the analysis of worn, damaged and discarded tools; design and development of computer software for use in the mining and rock processing industry; maintenance and support of computer software for use in the mining construction industry; providing of non-downloadable computer software and applications relating to the management of rock tools; providing of non-downloadable computer software and applications for collecting, organizing, analyzing, monitoring, tracking, recording and reporting operational data related to machines, equipment and tools used in the mining and construction industry; providing of non-downloadable computer software and applications for measuring and monitoring performance and productivity for tools used in the mining and construction industry; providing of non-downloadable computer software and applications for recording, reporting and creation of operational data reports used in the mining and construction industry; providing of non-downloadable computer software and mobile phone apps for the fault diagnosis, troubleshooting and preventive maintenance of machines and equipment used in mining and construction industry; providing of non-downloadable computer software providing predictions, notifications, analysis, service reminders, sales recommendations and reports related to performance optimization in mining and construction industry; providing of simulators consisting of non-downloadable computer software for training purposes; providing of non-downloadable computer software and applications for testing, analyzing and simulation of performance of tools used in the mining and construction industry; providing of non-downloadable computer software and applications relating the analysis of worn, damaged and discarded tools; reporting services for the mining and construction industry; preparation of reports relating to rock tools and drilling performance; information, advisory, support and consultancy services relating to all of the aforesaid.
98.
Disc cutter for undercutting apparatus and a method of manufacture thereof
A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.
B22F 3/14 - Both compacting and sintering simultaneously
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
E21B 10/573 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
E21C 27/22 - Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
A female portion to form part of a thread joint for a percussive drilling tool comprising a mounting sleeve having an axial end, wherein the mounting sleeve surrounds an internal cavity having an axial inner wall at the opposing end of the mounting sleeve compared to the axial end; wherein the mounting sleeve has at least one substantially cylindrical internally threaded section having a length L1, a thread entrance towards the axial end and a thread exit towards the axial inner wall; a thread clearance section positioned between the axial inner wall and the thread exit having a length L2 and a diameter D1; a guiding section positioned between the thread entrance and the axial end of the sleeve having a length, L3; characterized in that: 0 mm < L3-L2 < 12 mm.
A method of redistributing the binder phase of a cemented carbide mining insert having one or more hard-phase components and a binder includes the steps of: a) providing a green cemented carbide mining insert; b) applying at least one binder puller selected from a metal oxide or a metal carbonate to the surface of the green cemented carbide mining insert; and c) sintering the green cemented carbide mining insert, the metal oxide or metal carbonate being only applied to at least one local area on the surface of the green cemented carbide mining insert. Moreover, a cemented carbide having a hardness gradient and the use thereof is also provided.
B22F 3/24 - After-treatment of workpieces or articles
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
