A composite material is in a form of a plate provided with a first surface and a second surface which is a surface opposite to the first surface. The composite material includes a plurality of first layers and at least one second layer. The first surface and the second surface form end surfaces in a thickness direction of the composite material. The first layer and the second layer are alternately layered along the thickness direction such that the first layer is located at the first surface and the second surface. The first layer is a layer of a metallic material mainly composed of copper. The second layer includes a molybdenum plate and a copper filler. The molybdenum plate is provided with a plurality of openings that pass through the molybdenum plate along the thickness direction. The copper filler is arranged in the inside of the openings.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 3/26 - 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 particular shape of the outline of the cross-section of a continuous layerLayered 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 layer with cavities or internal voids
A wire drawing die includes: a blank serving as a wear-resistant member provided with a die hole for performing a wire drawing process onto a wire material; and a die case that supports the blank. The blank has a thermal conductivity higher than a thermal conductivity of the die case. The blank has an upstream-side end surface and a downstream-side end surface in a wire drawing direction, the die hole is provided between the upstream-side end surface and the downstream-side end surface, and the downstream-side end surface is exposed from the die case.
B21C 3/02 - DiesSelection of material thereforCleaning thereof
3.
MEMBER FOR HIGH-TEMPERATURE FLOW PASSAGE, HEAT EXCHANGER, MEMBER FOR HIGH-TEMPERATURE FLOW PASSAGE FOR NUCLEAR FUSION REACTOR, AND HEAT EXCHANGER SYSTEM FOR NUCLEAR FUSION REACTOR
There has been demand for a member for a high-temperature flow passage that makes it possible to prevent leakage of a fluid. This high-temperature flow passage is provided with a high-temperature flow passage forming member or a hollow tube member for the high-temperature flow passage, the high-temperature flow passage forming member or the hollow tube member containing at least one kind of metal selected from the group consisting of molybdenum, tungsten, niobium, and tantalum, or an alloy thereof. The flow passage forming member and the hollow tube member, the flow passage forming members, or the hollow tube members are joined to each other, and at least one selected from the group consisting of molybdenum, a molybdenum alloy, niobium, a niobium alloy, tantalum, and a tantalum alloy is used as a metal seal in the joined portion.
F16L 23/20 - Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
This vitrified bond super-abrasive wheel is provided with a super-abrasive grain layer containing diamond abrasive grains, a vitrified bond, and a filler. The filler is made of aluminum oxide. The vitrified bond contains, as a chemical composition, Si, Al, B, F, and an alkali metal. With respect to the total content of the chemical composition, the total content of Si and B is 50.0-80.0 mol%, the content of Al is 0.1-10.0 mol%, the content of F is 0.1-10.0 mol%, and the content of the alkali metal is 15.0-25.0 mol%.
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 3/00 - 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
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
A rotary dresser comprising a metallic base and an abrasive grain layer provided on the metallic base, wherein, if the axial length of the abrasive grain layer is at least 20 mm, positions at which the axial positions are 10%, 30%, 50%, 70%, and 90% with respect to an end surface in the axial direction of the abrasive grain layer are designated as first to fifth measurement positions, and, if the axial length of the abrasive grain layer is less than 20 mm, positions obtained by equally dividing, in the axial direction, a measurement region which is a remaining portion after excluding a range of 2 mm in the axial direction from both end surfaces as regions not to be measured are designated as the first to fifth measurement positions, and the coefficient of variation of the circumferential length of abrasive grains as viewed at a position 10 µｍ below the outermost surface of the abrasive grain layer is at most 0.10 at the first to fifth measurement positions.
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
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
This rotary cutting tool comprises an outer peripheral cutting edge, a front cutting edge, and a rake face to which a groove has been provided. With respect to the front cutting edge, the outer peripheral cutting edge is positioned in a first direction that is parallel to an axis and goes from a front end of the rotary cutting tool toward a rear end of the rotary cutting tool. The rake face comprises a first rake face portion linked to the outer peripheral cutting edge. The groove comprises a first side wall surface linked to the first rake face portion. A ridge line between the first side wall surface and the first rake face portion is taken to be a first ridge line. In a cross section that is perpendicular to the axis and intersects the groove and that is viewed in the first direction, a virtual line that is perpendicular to the first rake face portion and passes through the first ridge line is taken to be a first virtual line. In the cross section, a tilt angle of the first side wall surface with respect to the first virtual line is 35° to 60°.
The purpose of the present disclosure is to provide a tungsten carbide powder and a tungsten carbide mixed powder that, when used as a raw material of a cemented carbide, allow a PCB drill which comprises the cemented carbide to have a long tool life. The present disclosure relates to a tungsten carbide powder comprising first tungsten carbide particles to which a first element has been added, wherein the first element is at least one element selected from the group consisting of titanium, zirconium, niobium, tantalum, molybdenum, cerium, and yttrium, and in a first graph on which a result that is obtained by using an energy dispersive X-ray spectrometer attached to a transmission electron microscope to perform line analysis from a position X1, which is set inside the first tungsten carbide particles and which is at a distance of not less than 6 nm from the outer edge of the first tungsten carbide particles to a position X2, which is set outside the first tungsten carbide particles and which is at a distance of not less than 6 nm from the outer edge of the first tungsten carbide particles is shown in a coordinate system where the X-axis represents the distance from the position X1 and the Y-axis represents a net strength, a first range in which the total net strength of the first element is greater than the net strength of tungsten is present at a distance from the point of origin that is greater than a distance P1, at which the net strength of tungsten is 0.5 times the maximum net strength of tungsten.
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
Provided is a radiating shielding material which contains tungsten (W), boron (B), and carbon (C), wherein: the total number of moles of elements other than tungsten, boron, and carbon is not more than 10 at% of the total number of moles of tungsten, boron, and carbon; and when the contents of tungsten, boron, and carbon with respect to the total of tungsten, boron, and carbon are represented as WA, BA, and CA, the contents WA, BA, and CA are within the range surrounded by points A1, A2, A3, and A4 in fig. 1. The radiation shielding material includes a phase containing a boride of tungsten, further includes a phase containing a carbide of tungsten and/or a phase containing carbon, and is sintered.
The purpose of the present disclosure is to provide a tungsten carbide powder and a tungsten carbide mixed powder, each of which makes it possible for a cutting tool that is provided with a cemented carbide to have a long tool life if the tungsten carbide powder or the tungsten carbide mixed powder is used as a starting material for the cemented carbide. The present disclosure relates to a tungsten carbide powder which is composed of first tungsten carbide particles each having an oxide of a first element on the surface thereof, wherein the first element is at least one element that is selected from the group consisting of titanium, zirconium, niobium, tantalum, molybdenum, cerium, and yttrium. In a first graph which shows the result, obtained by performing a line analysis using an energy dispersive X-ray spectrometer attached to a transmission electron microscope from a position X1 located inside the first tungsten carbide particles and having a distance from the outer edges of the first tungsten carbide particles of 10 nm or more toward a position X2 located outside the first tungsten carbide particles and having a distance from the outer edges of the first tungsten carbide particles of 10 nm or more, in a coordinate system in which the X-axis shows the distance from the position X1 and the Y-axis shows the content based on the number of atoms of an element, a distance P2 at which the content based on the number of atoms of the first element is maximum and a distance P3 at which the content based on the number of atoms of oxygen is maximum are present at distances farther from the origin than a distance P1 at which the content based on the number of atoms of tungsten is 0.5 times the maximum value of the content based on the number of atoms of tungsten, and the absolute value of the difference between the distance P2 and the distance P3 is 0 nm to 0.5 nm inclusive.
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
Provided is an abrasive stone for a compound semiconductor wafer, the abrasive stone comprising a super abrasive grain layer with pores, the layer comprising: diamond abrasive grains with an average particle diameter of 0.10-20.00 μm; and a vitrified bond. The pores in the super abrasive grain layer contain voids with a diameter of 40.00 μm or less as measured by mercury intrusion porosimetry. The D50 of the voids is greater than the average particle diameter of the diamond abrasive grains.
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
B24D 7/06 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor with inserted abrasive blocks, e.g. segmental
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
A vitrified bond superabrasive wheel according to the present invention comprises superabrasive grains, fillers, and a vitrified bond, and includes a superabrasive layer in which pores are formed. The ratio of the number of fillers having a convexity of less than 0.90 is 10% to 40%.
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 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
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 7/08 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor with inserted abrasive blocks, e.g. segmental with reinforcing means
Provided is a superabrasive cutting wheel comprising: a disk-shaped base metal made of cemented carbide; and a superabrasive layer provided on the outer peripheral part of the base metal. The superabrasive layer includes a superabrasive, a metal bond, and a filler. The difference between the coefficient of linear expansion of the superabrasive layer and the coefficient of linear expansion of the base metal is 0-15.0 × 10-6 (1/°C) or less.
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
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
Provided is a superabrasive cutting wheel comprising: a disk-shaped base metal made of cemented carbide and having a body part and an outer peripheral part provided on an outer periphery of the body part; and a superabrasive layer provided on an outer peripheral part of the base metal. The superabrasive layer includes a superabrasive and a metal bond. In the outer peripheral part, the concentration of cobalt is lower than in the body part.
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
Provided is a vitrified-bond superabrasive wheel comprising a base metal and a vitrified-bond superabrasive layer fixed thereto, wherein the superabrasive layer comprises superabrasive grains and a vitrified bond and has voids. The superabrasive grains have an average grain diameter of 0.02-1.0 μm and the voids include small voids having diameters of 0.10 μm or larger but smaller than 10 μm, the average value of the diameters of the small voids being 0.3-3.0 μm. The voids include large voids having diameters of 20-500 μm, the average value of the diameters of the large voids being 20-120 μm and the average value of void-to-void distances of the large voids being 40-300 μm.
B24D 7/06 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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
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
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
The present disclosure provides a powder containing tungsten carbide having a uniform particle diameter. One aspect of the present invention is a powder containing tungsten carbide having a mode value in a cross-sectional particle diameter distribution chart of 24.0% or more as prepared by analyzing a feature amount of primary particles by image analysis of a cross-sectional SEM image of the powder containing tungsten carbide. One aspect of the present invention is a powder containing tungsten carbide satisfying E/D<0.9, wherein, when a feature amount of primary particles is analyzed by image analysis of a cross-sectional SEM image of the powder containing tungsten carbide, D is a simple average of particle diameters of the primary particles and E is an area-weighted standard deviation of the particle diameters.
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicidesPreparation of the powder mixture used as the starting material therefor
16.
COMPOSITE MATERIAL, HEATSINK, SEMICONDUCTOR PACKAGE, AND METHOD FOR PRODUCING COMPOSITE MATERIAL
This composite material contains copper and molybdenum, has a plate shape having a first surface as a main surface, has a composition in which the content ratio of copper is 20%-70% by mass, and has a structure including a matrix containing molybdenum and a first copper phase and a second copper phase dispersed in the matrix, wherein in a cross section perpendicular to the first surface, each cross-sectional area of the second copper phase is 900 μm2 or more, and each cross-sectional area of the first copper phase is smaller than the cross-sectional area of the second copper phase, the ratio of the total area of the second copper phase to the area of the cross section is 10%-50%, the aspect ratio obtained by dividing the average major axis of the second copper phase by the average minor axis thereof is 10 or more, and the relational expression Y ≤ -1.5551X + 285 is satisfied, wherein X is the content ratio of copper in the composite material, and Y is the Vickers hardness of a composite phase formed by the matrix and the first copper phase.
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
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 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
B22F 3/24 - After-treatment of workpieces or articles
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
24.
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.
Metalworking machines and metalworking machine tools; grinding tools being parts of machines; dressers being parts of machines, namely, metal grinding machines, metal cutting machines; rotary dressers being parts of machines, namely, metal grinding machines, metal cutting machines; diamond rotary dressers being parts of diamond machine tools for processing and shaping diamond wheels
There is provided an irregularly-shaped diamond die for producing an irregularly-shaped wire, wherein a processing hole is provided, the processing hole having a reduction portion and a bearing portion in this order from an upstream side in a wire drawing direction, a corner portion having a curved shape and a non-corner portion located at a position different from a position of the corner portion are provided in a cross section of the bearing portion perpendicular to the wire drawing direction, and a surface roughness of the corner portion is greater than a surface roughness of the non-corner portion. The surface roughness Sa of the corner portion is equal to or less than 0.30 μm and the surface roughness Sa of the non-corner portion is equal to or less than 0.20 μm.
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 sinks for use in 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 sinks for use in semiconductor devices; heat spreaders for semiconductor devices; voltage regulators; electric control panels, electric current control devices; power distribution boxes, power distribution panels, electrical power distribution blocks, electric power distribution units, power modules for sequential control, electronic controllers for use with power converters, power controllers for fuel cells, power switches.
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 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 15/00 - Layered products essentially comprising metal
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 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
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 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
