A tungsten material and a plasma-facing material according to the present invention have a plurality of crystal grains. In a plane where the average aspect ratio of the plurality of crystal grains is the minimum, the area ratio occupied by the (100) crystal plane is 2.0-8.0%.
C22C 27/04 - Alloys based on tungsten or molybdenum
B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/18 - High-melting or refractory metals or alloys based thereon
The present invention provides a flat cutting blade composed of a WC-Co-based or WC-Ni-based cemented carbide and comprising a flat plate-like base part extending along a center line and a blade part extending, along the center line, from an end of the base part. The blade part has a blade tip section. A ridge line is formed at the cutting edge of the blade tip section. In a longitudinal section extending in both the extension direction and a thickness direction orthogonal to the extension direction, the variation σ in the width of the ridge line in the thickness direction is greater than 0 and equal to or less than 2.000.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
B28B 11/14 - Apparatus or processes for treating or working the shaped articles for dividing shaped articles by cutting
A single-crystal diamond material comprising a single-crystal diamond and a modified portion present in an outer shell of the single-crystal diamond, the nitrogen-atom content of the single-crystal diamond, based on atomic number, being 1 ppm to 2,000 ppm, wherein, in an inner-shell electron excitation spectrum for the modified portion of the single-crystal diamond material, obtained by electron energy loss spectroscopy using a transmission electron microscope, the ratio Iπ*/Iσ*of the maximum intensity Iπ*of a π*peak present in the energy loss amount range of 285 eV ± 5 eV to the maximum intensity Iσ*of a σ* peak present in the energy loss amount range of 291 eV ± 5 eV is 0.15 or more, and the percentage {N1/(N1+N2)}×100 of the number N1 of first carbon atoms constituting amorphous carbon to the total N1+N2 of the number N1 of first carbon atoms and the number N2 of second carbon atoms constituting graphite in the modified portion is 90% or more.
C30B 33/04 - After-treatment of single crystals or homogeneous polycrystalline material with defined structure using electric or magnetic fields or particle radiation
Provided is a single crystal diamond in which the content of nitrogen atoms based on the number of atoms is 1 ppm to 2,000 ppm inclusive. The surface of the single crystal diamond includes a first region, the arithmetic mean height Sa, which is defined in JIS B 0681-2 (2018), of the first region is 3 nm or more, and the maximum height Sz, which is defined in JIS B 0681-2 (2018), of the first region is 60 nm or more.
C30B 33/04 - After-treatment of single crystals or homogeneous polycrystalline material with defined structure using electric or magnetic fields or particle radiation
A cross-section of a bearing orthogonal to a drawing direction has a pair of long sides having relative long side lengths and a pair of short sides having relatively short side lengths. In a cross section of a reduction on the long-side side, parallel to the drawing direction, the absolute value of the difference between a first reduction angle and a second reduction angle opposite the first reduction angle with respect to the drawing direction is 2° or less. In a cross section of the reduction on the short-side side, parallel to the drawing direction, the absolute value of the difference between a third reduction angle and a fourth reduction angle opposite the third reduction angle with respect to the drawing direction is 2° or less. The average value of the first reduction angle and the second reduction angle is greater than the average value of the third reduction angle and the fourth reduction angle.
A powder comprising tungsten carbide having an average particle diameter obtained by the FSSS method of 3.0-10.0 μm, the powder having a single crystallinity of 0.50-0.70.
C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
B23B 27/14 - Cutting tools of which the bits or tips are of special 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
8.
IRREGULARLY-SHAPED DIE AND METHOD FOR PRODUCING IRREGULARLY-SHAPED WIRE
An irregularly-shaped diamond die is an irregularly-shaped die for producing an irregularly-shaped wire, wherein a processing hole having a bearing portion is provided, a first side and a second side that face each other are provided in a cross section of the bearing portion perpendicular to a wire drawing direction, and each of the first side and the second side has a shape that is convex toward a center side of the processing hole in the cross section.
A tungsten-containing material that has an oxygen generation quantity of more than 1 ppm and 20 ppm or less at 2100° C. to 2300° C. as detected by oxygen analysis based on an oxygen separation method, and contains 5 ppm or more and 30 ppm or less of potassium.
A rotary dresser has a super-abrasive grain layer including super-abrasive grains bonded in a single layer to a base metal by a plated layer, in which the super-abrasive grains include first super-abrasive grains having a first average grain diameter, and second super-abrasive grains having a second average grain diameter smaller than the first average grain diameter, a plurality of super-abrasive grains exposed at a surface of the super-abrasive grain layer among the first super-abrasive grains and the second super-abrasive grains have working surfaces formed thereon, and in a region with a highest degree of concentration of the super-abrasive grains, a ratio of a total area of the plurality of working surfaces to an area of an imaginary surface smoothly connecting the plurality of working surfaces is 30% or more and 60% or less.
This composite material is plate-shaped and comprises at least one first layer and a plurality of second layers. The first layer and the second layers are alternately laminated in the direction along the thickness of the composite material; the first layer is a layer made of a first metal material; each of the second layers has a plate made of a second metal material and a filler made of the first metal material; the thermal conductivity of the first metal material is higher than the thermal conductivity of the second metal material; the linear expansion coefficient of the second metal material is lower than the linear expansion coefficient of the first metal material; the plate has a plurality of through-holes penetrating through the plate in the direction along the thickness of the composite material; the filler is disposed inside the through-holes; and when the composite material is seen through in the direction along the thickness, the through-holes provided in each of the plurality of second layers are deviated from each other.
There is provided a vitrified bond super-abrasive grinding wheel having a super-abrasive grain layer, wherein the super-abrasive grain layer 6 includes a super-abrasive grain 3, a pore 5 and a vitrified bond 2, and in the super-abrasive grain layer 6, an area ratio of a coarse vitrified bond grain having an area of 30 μm2 or larger is 10% or less.
B24D 3/18 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for porous or cellular structure
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
This molybdenum-containing powder has an average grain diameter as determined by Fisher sub-sieve sizer (FSSS) of 0.1 μm to 10 μm, a molybdenum content of at least 99.99 mass%, and a compressive deformation strength that exceeds 0 MPa but does not exceed 200 MPa.
This material containing molybdenum has a crystal grain size of 25 μm or greater, a density of 10.15 g/cm3 or greater, a molybdenum content of 99.95 mass% or greater, and a mass ratio (in-grain W/grain boundary W) of the in-grain tungsten content/grain boundary tungsten content of 0.8 or less.
Metalworking machines and metalworking machine tools; grinding tools being parts of machines; grinding stones being parts of machines, namely, power-operated grinding wheels; power-operated electroplated diamond grinding wheels being parts of machines; power-operated electroplated CBN (cubic boron nitride) grinding wheels being parts of machines.
Metalworking machines and metalworking machine tools; grinding tools being parts of machines; grinding stones being parts of machines, namely, power-operated grinding wheel; power-operated diamond grinding wheels being parts of machines; power-operated CBN (cubic boron nitride) grinding wheels being parts of machines.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
Goods & Services
Composite materials composed of copper and molybdenum;
nonferrous metals and their alloys. Heat radiation components for semiconductor devices made of
composite materials composed of copper and molybdenum; heat
spreaders for semiconductor devices made of composite
materials composed of copper and molybdenum; heat radiation
components for semiconductor devices; heat spreaders for
semiconductor devices; voltage regulating apparatus and
instruments; electrical control apparatus and instruments;
power distribution or control machines and apparatus.
This wire drawing die includes a bearing having a diameter D of less than 100 μm. A hole is provided in polycrystalline diamond substantially composed only of diamond that has an average particle diameter of 500 nm or less. A reduction angle is 4-14°, the length of the bearing is 20-100% D, the concentricity of the bearing and a bell or an approach is 1.0 μm or less, and the circularity of the hole of the bearing is 0.5 μm or less.
A composite material has a plate shape and has a first surface and a second surface. The second surface is opposite to the first surface. The composite material includes a plurality of first layers and at least one second layer. The first layers and the second layer are alternately layered along a thickness direction of the composite material such that the first layers are located at the first surface and the second surface. Each of the first layers is a layer including copper. The second layer is a layer of a molybdenum powder compact impregnated with copper. A compressive residual stress of 50 MPa or less acts on each of the first layer located at the first surface and the first layer located at the second surface.
B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 23/373 - Cooling facilitated by selection of materials for the device
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Composite materials composed of copper and molybdenum; nonferrous metals and their alloys.
(2) Heat radiation components for semiconductor devices made of composite materials composed of copper and molybdenum; heat spreaders for semiconductor devices made of composite materials composed of copper and molybdenum; heat radiation components for semiconductor devices; heat spreaders for semiconductor devices; voltage regulating apparatus and instruments; electrical control apparatus and instruments; power distribution or control machines and apparatus.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
Goods & Services
Composite metals composed of copper and molybdenum; nonferrous metals and their alloys. Heat radiation components in the nature of heat sinks for use in semiconductor devices made of composite materials composed of copper and molybdenum; heat spreaders being heat sinks for use in semiconductor devices made of composite materials composed of copper and molybdenum; heat radiation components in the nature of heat sinks for use in semiconductor devices; heat spreaders being heat sinks for use in semiconductor devices; voltage regulators; electrical control apparatus and instruments, namely, electrical controllers, electric control panels, electric current control devices; power distribution and control machines and apparatus, namely, electrical controllers, electric current control devices, power switches.
A rotary cutting tool includes a first cutting blade, a second cutting blade, a third cutting blade, a fourth cutting blade, and a fifth cutting blade on a circumference, in which a rotation angle from the first cutting blade to the second cutting blade is 60±1°, a rotation angle from the second cutting blade to the third cutting blade is 75±1°, a rotation angle from the third cutting blade to the fourth cutting blade is 60±1°, a rotation angle from the fourth cutting blade to the fifth cutting blade is 75±1°, and a rotation angle from the fifth cutting blade to the first cutting blade is 90±1°.
A composite material includes: a first member containing tungsten as a primary component; a second member containing copper as a primary component, the second member being joined to the first member; and a metal containing at least one metal selected from a group consisting of titanium, zirconium, and hafnium, the metal being present in the second member, wherein a concentration of the metal is more than 0 atomic % and less than or equal to 5.0 atomic % at a location of 5 μm from a joining interface between the first member and the second member toward the second member side.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B23K 20/02 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
The present invention has a configuration wherein: the contours of a first blade section in a vertical cross-section extending both in an extension direction and a thickness direction perpendicular to the extension direction have a first inclined surface which is inclined relative to a center line so as to become thinner as the distance from a base part increases in the extension direction, and has a tip end section which forms the blade tip; the contours of a second blade section in the vertical cross-section have a second inclined surface which abuts the first inclined surface, and is more linear and has a more shallow incline relative to the center line than the incline of the first inclined surface; the contours of a third blade section in the vertical cross-section have a concave curved surface which abuts the second inclined surface and curves in a concave shape toward the center line side; and the length of the second blade section is greater than or equal to the length of the first blade section in the extension direction.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
B26D 3/00 - Cutting work characterised by the nature of the cut madeApparatus therefor
In a cooler according to the present invention: a first flow passage member extends in a longitudinal direction; at least one first refrigerant flow passage that is inclined with respect to the longitudinal direction and a lateral direction and that has a first bottom is provided in the first flow passage member, where a direction orthogonal to the longitudinal direction and facing a second flow passage member is defined a stacking direction, and a direction orthogonal to the longitudinal direction and the stacking direction is defined as the lateral direction; the second flow passage member has a heat receiving surface; at least one second refrigerant flow passage that is inclined with respect to the longitudinal direction and the lateral direction and that has a second bottom is provided on the opposite side to the heat receiving surface; the second refrigerant flow passage is inclined in the opposite direction to the first refrigerant flow passage; and the first refrigerant flow passage and the second refrigerant flow passage form a cooling flow passage.
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
This rotary dresser comprises: a base metal 103 having an outer circumferential surface; and an abrasive layer 101 disposed on the outer circumferential surface of the base metal 103. The abrasive layer 101 has: a binder 203 disposed on the base metal 103; and abrasives 204 that are further fixed by the binder 203, and the diameter of the abrasive layer 101 of the rotary dresser differs between a first portion and a second portion of the abrasive layer. The area proportion of a working surface 205 in the surface of the abrasive layer 101 is smaller in a portion in which the abrasive layer 101 has a larger diameter.
B24B 53/14 - Dressing tools equipped with rotary rollers or cuttersHolders therefor
B24B 53/053 - Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool
B24B 53/07 - Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
In a case where an FSSS average particle size of a tungsten-containing powder as obtained by an FSSS method is defined as a (μm) and a density TD, which is an inverse number of a tap volume of the tungsten-containing powder, is defined as p (g/cm3), a relational expression of p≥0.37a+7.04 is satisfied when a range of the FSSS average particle size a is 0.5 μm≤a≤5.0 μm.
The present invention comprises a heat dissipation substrate which is in a plate shape and is formed of a composite material including metal and silicon carbide. The surface of the heat dissipation substrate on one side is partitioned into a plurality of regions in a grid shape. Each of a length B1 of a lengthwise side and a length L1 of a widthwise side of each of the plurality of regions is 10 mm-25 mm. The plurality of regions 2 in the grid shape occupy 70% or more of the total area of the surface of the heat dissipation substrate 1 on the one side. Each point of the plurality of regions in the grid shape has heat conductivity of 140 W/(m·K) or higher. A variation coefficient of the heat conductivity in the plurality of regions in the grid shape is less than 3.0%. The variation coefficient is expressed by standard deviation/average×100 (%).
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
H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
This composite material is plate-shaped and has a first surface and a second surface that is a surface opposite to the first surface. The composite material comprises a plurality of first layers and at least one second layer. The first surface and the second surface each form an end surface in the thickness direction of the composite material. The first layers and the second layer are alternately laminated along the thickness direction such that the first layers are located in the first surface and the second surface. The first layers are each formed from a metal material including copper as a main component. The second layer has a molybdenum sheet and a copper filler. The molybdenum sheet has formed therein a plurality of openings that penetrate through the molybdenum sheet along the thickness direction. The copper filler is arranged inside the openings. In a cross-sectional view orthogonal to the thickness direction, the openings are arrayed so as to form a lattice arrangement.
A composite material includes a plurality of first layers and a plurality of second layers. The total number of the first and second layers is 5 or more. The first and second layers are stacked alternately in the thickness direction of the composite material, such that the first layer is located at each of the first and second surfaces. The first layers are formed from a metal material containing copper as a main component. The second layer includes a molybdenum plate and a coper filler. The molybdenum plate has first and second faces that are each an end face in the thickness direction, and a plurality of openings extending through the molybdenum plate from the first face to the second face.
A reamer incudes a core and a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material. The core extends from a front end to a rear end. The core is provided with a plurality of flutes from the front end to the rear end. A center-of-gravity adjustment portion, which adjusts a distance from a center of rotation to a center of gravity, is provided at least partially from terminal ends of the plurality of flutes on a rear end side to the rear end of the core. The center-of-gravity adjustment portion causes the deviation of the center of gravity from the center of rotation to be smaller than when no center-of-gravity adjustment portion is provided.
A tungsten-including material that demonstrates an oxygen generation quantity of greater than 1 ppm and less than or equal to 20 ppm at 2100°C to 2300°C, as detected by oxygen analysis according to an oxygen separator method, and includes 5 ppm to 30 ppm of potassium.
This rotary dresser comprises a superabrasive particle layer in which superabrasive particles are bound in a single layer to a base metal by means of a plating layer, the superabrasive particles comprising first superabrasive particles having a first average particle diameter, and second superabrasive particles having a second average particle diameter smaller than the first average particle diameter. Of the first superabrasive particles and the second superabrasive particles, a plurality of superabrasive particles that are on the surface of the superabrasive particle layer have working surfaces formed thereon. In a region in which the concentration of the superabrasive particles is the highest, the total area ratio of the plurality of working surfaces to the area of a virtual surface that smoothly connects the plurality of working surfaces is 30-60%.
B24B 53/07 - Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 3/06 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic
B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
This vitrified-bond superabrasive wheel has a superabrasive layer, the superabrasive layer 6 including superabrasive grains 3, pores 5, and vitrified bonds 2. In the superabrasive layer 6, the area ratio of coarse vitrified bond grains having an area of 30 μm2 or higher is 10% or lower.
B24D 3/18 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for porous or cellular structure
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 3/02 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
This cutting blade made of a super-hard alloy comprises a base portion, and a blade portion provided on an extension line of the base portion and having a blade tip, which is a tip end portion. A KAM value, which represents distortion of WC particles constituting left and right blade surfaces forming the blade tip, is 0 to 4.0 inclusive.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
This cutting blade made of cemented carbide comprises a base part and a blade part that is provided on a line of extension of the base part and that has a blade edge at the farthest edge end. The recess depth of Co parts constituting the left and right blade surfaces forming the blade edge is 0.008-0.3 μm inclusive.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
A ratio of an angle of 2 to 15° is 50% or more in an arbitrary surface of the tungsten material, the angle being formed between a specific crystal orientation of a first crystal grain and a specific crystal orientation of a second crystal grain adjacent to the first crystal grain.
A composite material of the present disclosure contains a plurality of diamond particles, copper, and at least one first element selected from the group consisting of silicon, chromium, cobalt, nickel, molybdenum, titanium, vanadium, niobium, tantalum tungsten and aluminum, wherein the content rate of the first element based on the total mass of the copper and the first element is 50 ppm or higher and 2,000 ppm or lower.
The present invention pertains to an irregular-shape diamond die that is used to produce an irregular shape wire, and that is provided with a processing hole in which a reduction part and a bearing part are provided sequentially from the upstream side in a wire drawing direction. In a cross-section of the bearing part perpendicular to the wire drawing direction, a curve line-shape corner part and a non-corner part disposed at a position different from that of the corner part are provided. The surface roughness of the corner part is greater than that of the non-corner part. The surface roughness Sa of the corner part is at most 0.30 μm, and the surface roughness Sa of the non-corner part is at most 0.20 μm.
This irregular-shaped diamond die is an irregular-shaped die for fabricating an irregular-shaped line and is provided with a processing hole having a bearing portion. In a cross-section of the bearing portion perpendicular to a wire drawing direction, a first side and a second side facing each other are provided, and the first side and the second side have protrusion shapes on the center side of the processing hole in the cross-section.
A rotary cutting tool includes a tool body and a cutting edge tip provided at the tool body. At least one first groove is provided in a rake face of the cutting edge tip, the first groove has a portion inclined with respect to a rotation axis, and a front end of the first groove is provided at a front cutting edge. A rear end of the first groove is provided on an inner side with respect to an outer peripheral cutting edge, and an irregularity of the outer peripheral cutting edge is 30 μm or less.
A composite material including a metallic phase and plurality of particles dispersed in the metallic phase. The plurality of particles is a carbon-based material; the metallic phase contains a main element, a first element, and a second element; the coating layer of each of the plurality of particles is carbide of the second element. The main element is copper; the first element is a metallic element having a lower surface tension than copper; the second element is at least one selected from the group consisting of beryllium, silicon, titanium, chromium, zirconium, niobium, hafnium, and tantalum.
C09K 5/14 - Solid materials, e.g. powdery or granular
B22F 1/18 - Non-metallic particles coated with metal
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
This powder containing molybdenum has the average particle diameter of 0.5-3.0 μm by a Fsss method, the BET specific surface area of 0.3 m2/g to 5.5 m2/g by a gas absorption method, the aggregation coefficient of 5.5 or lower as calculated from the average particle diameter by the Fsss method and the BET specific surface area by the gas absorption method, and the apparent density of 2.13 g/cm3 or lower as measured in accordance with JIS Z 2504 (2012).
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
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 27/04 - Alloys based on tungsten or molybdenum
A composite material includes: an iron-based alloy layer; an intermediate layer provided on the iron-based alloy layer; and a tungsten-containing layer provided on the intermediate layer, wherein the intermediate layer is composed of pure nickel or is an alloy that contains at least one selected from a group consisting of copper, cobalt, and iron at more than 0 mass % and less than or equal to 71 mass % in total, and that contains nickel at more than or equal to 29 mass % and less than 100 mass %.
A single-crystal diamond cutting tool is provided with a flank and a rake face, a cutting edge being provided at a boundary between the flank and the rake face, an inclined surface being provided at a location distant from the cutting edge, the inclined surface being contiguous to the rake face and inclined at 0.05 degrees or more and 80 degrees or less with respect to the rake face, the rake face having a roughness Ra of 1 µm or less, the cutting edge being provided with a chamfered surface or round honing having a width of 1 µm or less, the cutting edge having projections and depressions having a width of 100 nm or less and smaller than that of the chamfered surface or round honing.
This composite material comprises: a first member which contains tungsten and comprises tungsten as a first component; a second member which contains copper, comprises copper as a first component, and is joined to the first member; and a metal which is present within the second member and which contains at least one type selected from the group consisting of titanium, zirconium and hafnium. The concentration of the metal at a location 5 µm towards the second member side from the joining interface between the first member and the second member is more than 0 atom% and not more than 5.0 atom%.
This rotary cutting tool has first to fifth cutting edges on the circumference thereof, wherein: the angle of rotation from the first cutting edge to the second cutting edge is 60°±1°; the angle of rotation from the second cutting edge to the third cutting edge is 75°±1°; the angle of rotation from the third cutting edge to the fourth cutting edge is 60°±1°; the angle of rotation from the fourth cutting edge to the fifth cutting edge is 75°±1°; and the angle of rotation from the fifth cutting edge to the first cutting edge is 90°±1°.
This wire drawing die comprises: a blank that serves as an abrasion resistant member provided with a die hole for drawing a wire material; and a die case for holding the blank. The blank has a higher thermal conductivity than the die case. The blank has, in the drawing direction, an upstream-side end surface and a downstream-side end surface. The die hole is provided between the upstream-side end surface and the downstream-side end surface. The downstream-side end surface is exposed from the die case.
In an arbitrary surface of this tungsten material, the rate is 50% or greater of the angle formed by a specific crystal orientation of a first crystal grain and the specific crystal orientation of a second crystal grain adjacent to the first crystal grain being 2-15°.
2 or less, the coating film including one or more types of compounds composed of at least one type of element selected from the group consisting of a group 4 element, a group 5 element and a group 6 element of the periodic table, aluminum and silicon, and at least one type of element selected from the group consisting of oxygen, nitrogen, carbon, and boron.
B24D 3/04 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
A super-abrasive grain comprises a body composed of cubic boron nitride or diamond, and a coating film including aluminum and oxygen and coating at least a portion of a surface of the body of the abrasive grain.
B24D 3/10 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic for porous or cellular structure, e.g. for use with diamonds as abrasives
This composite material is in the form of a plate which has a first surface and a second surface that is on the reverse side of the first surface. This composite material comprises a plurality of first layers and at least one second layer. The first layers and the second layer are alternately stacked upon each other in the thickness direction of the composite material so that the first layers are positioned in the first surface and the second surface. The first layers contain copper. The second layer is a layer of a molybdenum powder compact that is impregnated with copper. As determined by X-ray diffraction analysis of an arbitrary cross-section of the second layer, the cross-section being parallel to the interface between a first layer and the second layer, the value obtained by dividing the X-ray diffraction intensity corresponding to the (211) plane of molybdenum by the X-ray diffraction intensity corresponding to the (200) plane of molybdenum is 2 or more.
This composite material is plate-shaped and has a first surface and a second surface that is a reverse surface of the first surface. The composite material includes a plurality of first layers and at least one second layer. The first layers and the second layers are alternately stacked in the thickness direction of the composite material in such a manner that the first layers are positioned in the first surface and the second surface. The first layers contain copper. The second layer is a molybdenum green body impregnated with copper. The oxygen concentration in the copper of the first layer is 0.002-0.053 mass% (inclusive).
This composite material is planar in shape and has a first surface and a second surface. The second surface is a surface opposite the first surface. The composite material includes a plurality of first layers and at least one second layer. The first layers and the second layer are alternately stacked upon each other in the thickness direction of the composite material so that the first layers are positioned on the first surface and on the second surface. The first layers contain copper. The second layer is a layer of a molybdenum green body impregnated with copper. A compressive residual stress of less than or equal to 50 MPa acts on the first layer positioned on the first surface and the first layer positioned on the second surface.
H01L 23/373 - Cooling facilitated by selection of materials for the device
B21B 3/00 - Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences
B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
This tungsten-containing powder is configured such that if the FSSS average particle diameter obtained by the FSSS method is "a" (μm) and the density TD, which is the reciprocal of the tap volume of tungsten-containing powder, is ρ (g/cm3), the relational expression of ρ ≥ 0.37a + 7.04 is satisfied when the FSSS average particle diameter "a" is within a range of 0.5 μm ≤ a ≤ 5.0 μm.
B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
C22C 27/04 - Alloys based on tungsten or molybdenum
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
A composite material contains a metallic phase, a non-metallic phase and a specific element. At least 90 mass % of the metallic phase is composed of at least one selected from the group consisting of Ag and Cu. The non-metallic phase includes a coated core material. The coated core material includes a core material and a carbide layer that covers at least a part of a surface of the core material. The core material contains at least one carbon-containing material selected from the group consisting of diamond, graphite, carbon fibers, and silicon carbide. The carbide layer contains a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta, and V. The specific element is at least one selected from the group consisting of Y and Mg. A total content of the specific element is 0.0004 mass % to 1.3 mass %.
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 47/08 - Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
A composite member excellent in corrosion resistance of a substrate and excellent in heat radiation property is provided. A composite member includes a substrate composed of a composite material containing magnesium or a magnesium alloy and SiC and a coating layer provided on a surface of the substrate. The coating layer includes an outermost layer provided as an outermost surface and an intermediate layer provided directly under the outermost layer. The outermost layer contains nickel and phosphorus. The intermediate layer is mainly composed of copper. The intermediate layer has a thickness not smaller than 30 μm.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
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
C23C 18/32 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals
This composite material is provided with an iron-based alloy layer, an intermediate layer that is provided on the iron-based alloy layer, and a layer that contains tungsten and is provided on the intermediate layer. With respect to this composite material, the intermediate layer is formed of pure nickel or an alloy that contains at least one element selected from the group consisting of copper, cobalt and iron in a total amount of more than 0% by mass but not more than 71% by mass, while containing nickel in an amount of not less than 29% by mass but less than 100% by mass.
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B23K 35/14 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape not specially designed for use as electrodes for soldering
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
A wire drawing die 1 that comprises a non-diamond material, is provided with a die hole 1h, and has a reduction 1c and a bearing 1d that is positioned downstream of the reduction 1c. The reduction angle γ, which is the opening angle of the die hole 1h at the reduction 1c, is no more than 17°, and the surface roughness Ra of the die hole 1h within ±20 μm from a specific position inside the bearing 1d in a circumferential direction of the die hole 1h that is perpendicular to the wire drawing direction is no more than 0.025 μm.
This composite material is provided with a plurality of first layers and a plurality of second layers. The total number of the first layers and the second layers is 5 or more. The first layers and the second layers are alternately stacked in the thickness direction of the composite material in such a manner that the first layers are positioned in a first surface and in a second surface. The first layers are formed of a metal material that is mainly composed of copper. The second layers comprise a molybdenum plate and a copper filler. The molybdenum plate has a first face and a second face, which are end faces in the thickness direction, and a plurality of openings that penetrate through the molybdenum plate from the first face to the second face. The copper filler is arranged within the openings. The thickness of the first layer that is positioned in the first surface is not less than 0.025 mm but not more than 30% of the thickness of the composite material. The thickness of the second layer that is in contact with the first layer positioned in the first surface is not less than 0.05 mm but not more than 35% of the thickness of the composite material.
H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
A cemented carbide cutting blade according to the present invention comprises a base section, and a blade section that is provided along a line extending from the base section and has a blade edge which is a leading-edge portion, wherein a Vickers hardness HV is 1250-2030, inclusive, the thickness of the blade section at a position 1 µm towards the base section from the blade edge is set to be T1 µm, the thickness of the blade section at a position 3 µm towards the base section from the blade edge is set to be T2 µm, T1 is 0.6-2.2, inclusive, T1+0.6≤T2≤(10/3)T1-0.4 when T1 is in the range of 0.6 to 0.9, and T1+0.6≤T2≤(15/13)T1+(39/25) when T1 is in the range of 0.9 to 2.2.
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
In the present invention, the ratio b/a is 0.30-1.00, where "a" represents a constant defined as a=Z1/(Y1)2when an outer surface of a blade part is represented as YZ plane and a first point on the outer surface is assigned with the coordinates (Y1, Z1 (=1.00 μm)); b represents a constant defined as b=Z2/(Y2)2 when a second point on the outer surface is assigned with the coordinates (Y2, Z2 (=5.00 μm)). The blade part has a thickness T1 of 0.60-1.50 μm at Z1 in the Y-axis direction. When T1 falls between 0.60 μm and 0.91 μm, the relation 0.30≤b/a≤1.52T1-0.61 is satisfied. When T1 falls between 0.91 μm and 1.06 μm, the relation 0.64T1-0.28≤b/a≤1.52T-0.61 is satisfied. When T1 falls between 1.06 μm and 1.50 μm, the relation 0.64T1-0.28≤b/a≤1.00 is satisfied.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
In the present invention, a blade portion has a thickness T1 of 0.26-7.00 μm at a position of 3 μm going from a blade tip toward a base. When the thickness of the blade portion at a position of X μm (X being an integer from 3 to 25) from the blade tip toward the base is defined as TX, and the thickness of the blade portion at a position of X+1 μm from the blade tip toward the base is defined as TX1, the blade thickness change amount TX1-TX is 0.08-1.85 μm at all integers from 3 to 25. In a vertical cross section orthogonal to the blade length direction, the outer shape of the blade portion in a range of 25 μm going from the blade tip to the base has a concave section in the inward direction, and the concave section is positioned inward of a straight line S connecting the blade tip and a position at 25 μm going from the blade tip to the base.
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
In the present invention, a blade part has a thickness T1 of 0.26-7.00 μm at a position 3 μm away from a blade edge toward a base. When the thickness of the blade part at a position X μm (X is an integer between 3 and 25) away from the blade edge toward the base is defined as TX and the thickness of the blade part at a position X+1 μm away from the blade edge toward the base is defined as TX1, a first blade thickness variation TX1-TX falls between 0.08 μm and 1.85 μm in all cases of X being the integers between 3 and 25. In a vertical cross section that intersects with a blade length direction, the outer shape of the blade part has a portion that protrudes outward within a range of 25 μm from the blade edge toward the base. The protruding portion is situated on an outer side of a straight line S that connects the blade edge and the position 25 μm away from the blade edge toward the base.
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
B26D 1/04 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
A heat radiation member excellent in electrical insulation and better in thermal conduction is provided. The heat radiation member includes a substrate composed of a composite material containing diamond and a metallic phase, an insulating plate provided on at least a part of front and rear surfaces of the substrate and composed of an aluminum nitride, and a single bonding layer interposed between the substrate and the insulating plate, the heat radiation member having thermal conductivity not lower than 400 W/m·K.
This cemented carbide cutting blade 1 comprises a base portion 110 and a blade portion 120 which is disposed on an extension line of the base portion 120 and which has a cutting edge 121 at the tip thereof. Said cutting blade has a Vickers hardness HV of 1250-2030. When the thickness of the blade portion 120 at a position 1 μm away from the blade tip 121t toward the base portion 110 is defined as T1 μm, and the thickness of the blade portion 120 at a position 3 μm away from the blade tip 121 toward the base portion 110 defined as T2 μm, T1 is 0.4-1.3, and 3.22T1≤T2≤1.11T1+2.76 is satisfied when T1 falls within the range of 0.4-1.3.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
H01G 13/00 - Apparatus specially adapted for manufacturing capacitorsProcesses specially adapted for manufacturing capacitors not provided for in groups
A composite member having an excellent heat resistance is provided. The composite member includes: a substrate composed of a composite material including a non-metal phase and a metal phase; and a metal layer that covers at least a portion of a surface of the substrate, wherein a metal included in each of the metal phase and the metal layer is mainly composed of Ag, and a ratio of a content of Cu to a total content of Ag and Cu in a boundary region of the metal layer with the substrate is less than or equal to 20 atomic %.
A composite material according to the present disclosure comprises a plurality of diamond particles and at least one first element selected from the group consisting of copper, silicone, chromium, cobalt, nickel, molybdenum, titanium, vanadium, niobium, tantalum and tungsten, in which the content ratio of the first element relative to the total mass of copper and the first element is 50 to 2000 ppm, inclusive.
Provided is a rotary cutting tool comprising: a base; and a cutting edge tip provided in the base. At least one first groove is formed in a rake face of the cutting edge tip. The first groove comprises a portion inclined with respect to the rotation axis. A front end of the first groove is formed in a front cutting edge. A rear end of the first groove is formed on the inside of an outer peripheral cutting edge. Dips and bumps of the outer peripheral cutting edge are equal to or smaller than 30 μm.
A composite material comprising a metal phase and a plurality of particles dispersed in the metal phase. The plurality of particles are a carbon-based material, the metal phase includes a main element, a first element, and a second element, and a particle coating layer on each of the plurality of particles is a carbide of the second element. The main element is copper, the first element is a metal element having lower surface tension than copper, and the second element is at least one selected from the group consisting of beryllium, silicon, titanium, chromium, zirconium, niobium, hafnium, and tantalum. The content of the first element with respect to the total of the main element, the first element, and the second element is 0.25-10.0 at%, and the content of the second element with respect to the total of the main element, the first element, and the second element is 1.5-14.0 at%.
A reamer includes a core, a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material, and a margin provided on a rear side of each the plurality of outer-circumference cutting edges in a rotational direction. A distance from an axis of rotation to a position of a center of gravity of the reamer is greater than 0.01 mm and not greater than 0.5 mm.
A reamer incudes a core and a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material. The core extends from a front end to a rear end. The core is provided with a plurality of flutes from the front end to the rear end. A center-of-gravity adjustment portion, which adjusts a distance from a center of rotation to a center of gravity, is provided at least partially from terminal ends of the plurality of flutes on a rear end side to the rear end of the core. The center-of-gravity adjustment portion causes the deviation of the center of gravity from the center of rotation to be smaller than when no center-of-gravity adjustment portion is provided.
This wire including tungsten comprises 50-150 ppm of at least one selected from the group consisting of potassium, cerium, lanthanum, and silicon, wherein the wire has a tungsten content of 99.92 mass% or more, a wire diameter of 5-22 µm, and a surface roughness Ra of 0.5 µm or less.
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/12 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of tubes or wires
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
This single-crystal diamond cutting tool is provided with a clearance face and a rake face, wherein: a cutting edge is provided at the boundary between the clearance face and the rake face; a sloped face that is continuous with the rake face and is slanted 0.05-80 degrees with respect to the rake face is provided in a location away from the cutting edge; a roughness Ra of the rake face is 1 μm or less; the cutting edge is provided with a chamfered face or round honing at a width of 1 μm or less; and the peak-to-valley width in the cutting edge is 100 nm or less, and is less than the width of the chamfered face or round honing.
A rotary cutting tool satisfying θ1+θ2+θ3＝360°, wherein two or more of θ1, θ2, and θ3 are 100° to 115° inclusive or 125° to 140° inclusive. The rotary cutting tool is provided with: a cemented carbide guide pad that is located at a position symmetrical to at least one of outer peripheral cutting edges with respect to a rotation axis and that has the same rotation diameter as the outer peripheral cutting edge; and an intermediate shaft portion that is located at a distance from the guide pad in a rotation axis direction and that has a diameter smaller than a rotation diameter D1 of the outer peripheral cutting edge. The difference between the rotation diameter D1 of the outer peripheral cutting edge and the rotation diameter of the intermediate shaft portion is 0.005 mm to 0.008 mm inclusive.
A molybdenum alloy material according to the present invention contains molybdenum, zirconia, and yttria, wherein: the zirconia content is 0.7% by mass to 13.6% by mass; the yttria content is 0.03 times to 0.08 times the zirconia content; and the ratio (11-1)/(111) of the ratio of the peak height of an (11-1) plane of tetragonal zirconia T and the peak height of a (111) plane of monoclinic zirconia M in X-ray diffraction is 10 or greater.
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
C22C 27/04 - Alloys based on tungsten or molybdenum
B22F 3/14 - Both compacting and sintering simultaneously
C22C 1/05 - Mixtures of metal powder with non-metallic powder
A superabrasive of the present invention is provided with: an abrasive body section comprising cubic boron nitride or diamond; and a coating film containing aluminum and oxygen and covering at least a portion of the surface of the abrasive body section.
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
A coated super-abrasive grain comprises an abrasive grain body composed of cubic boron nitride, and a coating film coating at least a part of the surface of the abrasive grain body. The dislocation density of the abrasive grain body is less than or equal to 9×1014/m2, and the coating film contains one or more kinds of compounds composed of at least one kind of element selected from the group consisting of group 4 elements, group 5 elements, group 6 elements, aluminum and silicon, and at least one kind of element selected from the group consisting of oxygen, nitrogen, carbon and boron in the periodic table.
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
H01L 23/373 - Cooling facilitated by selection of materials for the device
C25D 3/48 - ElectroplatingBaths therefor from solutions of gold
C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C25D 5/48 - After-treatment of electroplated surfaces
H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
C23C 28/00 - 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
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C23C 28/02 - 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 metallic material
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
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
C25D 3/12 - ElectroplatingBaths therefor from solutions of nickel or cobalt
C25D 3/62 - ElectroplatingBaths therefor from solutions of alloys containing more than 50% by weight of gold
C25D 5/02 - Electroplating of selected surface areas
C25D 5/12 - Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
C25D 5/00 - Electroplating characterised by the processPretreatment or after-treatment of workpieces
A composite member includes: a substrate formed of a composite material containing a plurality of diamond grains and a metal phase; and a coating layer made of metal. The surface of the substrate includes a surface of the metal phase, and a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase. In a plan view, the coating layer includes a metal coating portion, and a grain coating portion. A ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80. The coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 μm.
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 18/18 - Pretreatment of the material to be coated
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
H01L 23/373 - Cooling facilitated by selection of materials for the device
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C23C 18/32 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
B32B 19/00 - Layered products essentially comprising natural mineral fibres or particles, e.g. asbestos, mica
B32B 15/16 - Layered products essentially comprising metal next to a particulate layer
B32B 19/04 - Layered products essentially comprising natural mineral fibres or particles, e.g. asbestos, mica next to another layer of a specific substance
B22F 7/02 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers
A powder containing tungsten carbide has an Fsss particle size of greater than or equal to 0.3 μm and less than or equal to 1.5 μm, and a content rate of the tungsten carbide of greater than or equal to 90% by mass. The powder has a crystallite size (average particle diameter) Y satisfying a relational expression of Y≤0.1×X+0.20 (X: the Fsss particle size of the power containing tungsten carbide).
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
This tungsten carbide powder has tungsten carbide as the main component thereof and also contains chromium, wherein, when the mass concentrations of the tungsten and the chromium are measured at 100 or more analysis points selected at random from a field of view in which the tungsten carbide powder is observed by SEM, the standard deviation σ of the distribution in the ratio of the concentration of the chromium to the total concentration of the tungsten and the chromium, expressed as a percentage, is 0.5 or less.
C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
This tungsten carbide powder 1 includes bond bodies 10 each having multiple tungsten carbide crystal grains 11, wherein each of the bond bodies 10 includes, at a crystal grain boundary 11a between the multiple tungsten carbide crystal grains 11, a high chromium concentration region 12 that has a chromium concentration higher than that inside the tungsten carbide crystal grains 11.
C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
Provided is a tungsten carbide powder satisfying such a condition that when the Fsss particle size thereof is represented by a (μm) and the BET particle size thereof converted from the BET specific surface area is represented by b (μm), a is 0.40 μm or more and 1.50 μm or less, and b/a is 0.17 or more and 0.35 or less.
A composite material contains a metal phase and a non-metal phase. The composite material further contains a specific element. At least one element selected from the group consisting of Ag and Cu makes up 90% by mass or more of the metal phase. The non-metal phase includes a coated core material. The coated core material comprises a core material and a carbide layer that coats at least a portion of the surface of the core material. The core material comprises at least one carbon-containing material selected from the group consisting of diamond, graphite, a carbon fiber and silicon carbide. The carbide layer comprises a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta and V. The specific element comprises at least one element selected from the group consisting of Y, Mg, Si, B and Zr. The total content of the specific element(s) is 0.0004 to 1.3% by mass inclusive.
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 47/08 - Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
C22C 1/05 - Mixtures of metal powder with non-metallic powder
Provided is a composite member that has excellent substrate corrosion resistance and excellent heat radiation performance. The composite member is provided with: a substrate made of a composite material including magnesium or a magnesium alloy and SiC; and a coated layer provided on a surface of the substrate, wherein the coated layer has an outermost surface layer provided on an outermost surface thereof and an intermediate layer provided right beneath the outermost surface layer, the outermost surface layer includes nickel and phosphorous, the intermediate layer has copper as a main ingredient thereof, and the intermediate layer has a thickness of 30 μm or more.
C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
C22C 23/04 - Alloys based on magnesium with zinc or cadmium as the next major constituent
C22C 23/06 - Alloys based on magnesium with a rare earth metal as the next major constituent
C23C 28/00 - 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
H01L 23/373 - Cooling facilitated by selection of materials for the device
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C23C 18/32 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals
There is provided a vitrified bond super-abrasive grinding wheel including: a core; and a super-abrasive grain layer provided on the core, wherein the super-abrasive grain layer includes a plurality of super-abrasive grains and a vitrified bond that joins the plurality of super-abrasive grains, and the vitrified bond has a plurality of bond bridges located between the plurality of super-abrasive grains to join the plurality of super-abrasive grains, not less than 80% of the plurality of super-abrasive grains are joined to the super-abrasive grains adjacent thereto by the bond bridges, and not less than 90% of the plurality of bond bridges in a cross section of the super-abrasive grain layer have a thickness equal to or smaller than an average grain size of the super-abrasive grains, and have a length greater than the thickness.
B24D 3/14 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
B24D 3/18 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for porous or cellular structure
B24D 3/02 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
B24D 3/04 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
In the present invention, the external shape of a first blade section includes: first inclined surfaces that are linearly inclined with respect to the center line such that the blade becomes thinner in the direction away from a base in the extending direction (Z direction); and a pointed end serving as a blade edge. In a vertical cross-section, the external shape of a second blade section includes second inclined surfaces that are linearly inclined with respect to the center line at a more gentle angle than the first inclined surfaces and that join the first inclined surfaces. In the vertical cross-section, the external shape of a third blade section includes concave curved surfaces that are curved in a concave shape toward the center line and that join the second inclined surfaces. In the extending direction (Z direction), the length L2 of the second blade section is less than the length L1 of the first blade section and is from 20 μm to 120 μm.
B26D 1/06 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
