CN101658937A - Polycrystalline diamond composite sheet matrix - Google Patents
Polycrystalline diamond composite sheet matrix Download PDFInfo
- Publication number
- CN101658937A CN101658937A CN200910066136A CN200910066136A CN101658937A CN 101658937 A CN101658937 A CN 101658937A CN 200910066136 A CN200910066136 A CN 200910066136A CN 200910066136 A CN200910066136 A CN 200910066136A CN 101658937 A CN101658937 A CN 101658937A
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- CN
- China
- Prior art keywords
- matrix
- diamond
- hard alloy
- composite sheet
- polycrystalline diamond
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P5/00—Setting gems or the like on metal parts, e.g. diamonds on tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2204/00—End product comprising different layers, coatings or parts of cermet
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a polycrystalline diamond composite sheet matrix. A bonding surface of the matrix is provided with a plurality of protrusions. A bonding surface of a hard alloy matrix is provided with a plurality of protrusions, therefore, the bonding area between the hard alloy matrix and a diamond layer as well as the bonding strength between the matrix and the diamond layer are both increased; secondly, under the conditions of high temperature and high pressure, and when the diamond layer is formed on the matrix, the protrusions are beneficial to ensuring the flowing of diamond powder, compacting the diamond powder, enabling the compact density of the diamond power to be consistent and improving the impact resistance and the wear resistance of products; and thirdly, the protrusions ensure that cobalt in the hard alloy matrix diffuses upwards, and fully diffuses into the diamond powder at the high-temperature liquid phase state, and cobalt aggregation is not easily generated,thereby the catalytic action of the cobalt can be better and more fully exerted to fully improve the performance of the products. In addition, the bonding surface of the hard alloy matrix is providedwith the protrusions which can effectively reduce the consumption of the diamond powder and the manufacturing cost.
Description
Technical field
The invention belongs to the super-hard compound material technical field, particularly a kind of polycrystalline diamond composite sheet matrix.
Background technology
Composite polycrystal-diamond is that cemented carbide substrate is a matrix by diamond layer and the cemented carbide substrate super-hard compound material that sintering forms under superhigh-temperature and-pressure.It not only has very high hardness and wearability, also has very strong toughness, is applicable to boring tools such as manufacturing oil and geology drill bit, process drill bit.Composite polycrystal-diamond is divided into standard type composite sheet and grooved composite sheet.The diamond layer of standard type composite sheet is that the plane combines with cemented carbide substrate, and its bond strength is low, wearability and poor toughness; And the diamond layer of grooved composite sheet is that on-plane surface combines with cemented carbide substrate, is the on-plane surface grooved with the faying face of diamond layer on the hard alloy substrate promptly, and this kind combination has higher intensity, wearability and toughness.
At present, on the faying face of the diamond layer of grooved composite sheet and hard alloy substrate, employing aperture or pit form have appearred in the grooved of matrix, and the grooved of aperture or pit has undaform, column type and round with one heart, has also occurred rectangle grooved and corresponding mutation recently.There is following defective in above-mentioned matrix grooved: when hard alloy substrate combined with diamond dust, the flowability of diamond dust was poor, was unfavorable for the compacting diamond dust, caused the diamond dust compacted density inconsistent; The grooved of aperture or pit form is unfavorable for the upwards diffusion of cobalt in the matrix on the matrix, easily causes cobalt to be assembled, and makes the catalytic action of cobalt can not get fully playing; External grooved composite sheet costs an arm and a leg, and use cost is too high; The grooved of aperture or pit form can be full of diamond with after diamond combines on the matrix, and the diamond dust consumption is big, the manufacturing cost height.In addition, diamond layer stretches in the matrix grooved, and the stress that has increased diamond layer is concentrated, and has reduced intensity and the toughness and the impact strength of diamond layer, and service life is short, and competitiveness is poor.
Summary of the invention
The polycrystalline diamond composite sheet matrix that the purpose of this invention is to provide a kind of high comprehensive performance, low cost of manufacture.
For achieving the above object, technical scheme of the present invention is: polycrystalline diamond composite sheet matrix, the faying face of described matrix is provided with a plurality of projectioies.
Described projection is taper shape, pyramid, taper type or truncated cone-shaped.
Described projection is the center of circle with the center of the faying face of hard alloy substrate, is evenly distributed on a plurality of concentric circles.
Link to each other by the transition cambered surface between the described adjacent protrusion.
The faying face edge of described hard alloy substrate is provided with chamfering.
The end face of described taper type or truncated cone-shaped projection is an arc surface.
Among the present invention, being provided with a plurality of projectioies on the faying face of hard alloy substrate, at first is the bonded area that has increased with diamond layer, has increased the bond strength of matrix and diamond layer; Next is when forming diamond layer under the high-temperature and high-pressure conditions on matrix, is raised with to be beneficial to diamond dust and to flow, and helps the compacting diamond dust, makes the compacted density of diamond dust reach consistent, improves the impact resistance and the abrasion resistance of product; The 3rd is to be raised with the upwards diffusion of cobalt that is beneficial in the hard alloy substrate, cobalt more can be diffused under the high-temperature liquid-phase state in the middle of the diamond dust fully, be difficult for making cobalt form to assemble, thus the catalytic action that makes cobalt better, bring into play more fully, fully to enhance product performance.In addition, diamond layer is with after hard alloy substrate combines, and the projection on the matrix is deep into and forms the carbide alloy skeleton in the diamond layer, helps improving the toughness and the impact strength of diamond layer, also reduces the use amount of diamond dust simultaneously, reduces manufacturing cost.The center that projection is evenly distributed on the faying face of hard alloy substrate is on a plurality of concentric circles in the center of circle, and when matrix combined with diamond layer, it was concentrated effectively to eliminate stress, and strengthens structural strength.Edge at the faying face of hard alloy substrate is provided with chamfering, has increased the bonded area of matrix and diamond layer, gains in strength and shock resistance.Link to each other by the transition cambered surface between the adjacent in twos projection, can reduce stress and concentrate, strengthen the intensity of hard alloy substrate.The end face of taper type or truncated cone-shaped projection is designed to arc surface, can increase diamond layer and protruding contact area and bond strength.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention two;
Fig. 4 is the structural representation of the embodiment of the invention three;
Fig. 5 is the B-B cutaway view of Fig. 4.
The specific embodiment
Embodiment one: polycrystalline diamond composite sheet matrix as shown in Figure 1 and Figure 2, and it comprises hard alloy substrate 1, and being provided with a plurality of protruding 3, protruding 3 on the faying face 2 of hard alloy substrate 1 is truncated cone, and the height of truncated cone projection 3 is 2-4mm.Hard alloy substrate 1 is cylindrical, the center of circle with the circular faying face 2 of hard alloy substrate 1 is the center of circle, truncated cone projection 3 be evenly distributed on the concentric a plurality of concentric circles of faying face 2 on, when the projection on the matrix 3 is the concentric circles form and combines with diamond layer, it is concentrated effectively to eliminate stress, and strengthens structural strength.Edge at the faying face 2 of hard alloy substrate 1 is provided with chamfering 4, can increase the bonded area of matrix 1 and diamond layer, gains in strength and shock resistance.Link to each other by transition cambered surface 5 between the adjacent in twos projection 3, can reduce stress and concentrate, strengthen the intensity of hard alloy substrate.The end face of truncated cone projection 3 is designed to arc surface 6, and arc surface 6 is designed to cancave cambered surface herein, can increase the contact area and the bond strength of diamond layer and projection 3.
Embodiment two: polycrystalline diamond composite sheet matrix as shown in Figure 3, and the difference of embodiment one is: be provided with knuckle 7 between the taper seat of projection 3 and the arc surface 6, make unstressed the concentrating in top of projection 3, further improve the intensity of hard alloy substrate 1.
Embodiment three: the polycrystalline diamond composite sheet matrix shown in Fig. 4,5, and it comprises hard alloy substrate 1, and being provided with a plurality of protruding 3, protruding 3 on the faying face 2 of hard alloy substrate 1 is the rectangular pyramid shape, and the height of rectangular pyramid shape projection 3 is 2-4mm.Hard alloy substrate 1 is cylindrical, the center of circle that the projection 3 of rectangular pyramid shape is evenly distributed on hard alloy substrate 1 is on a plurality of concentric circles in the center of circle, when the projection on the matrix 3 was the concentric circles form and combines with diamond layer, it was concentrated effectively to eliminate stress, and strengthened structural strength.Edge at the faying face 2 of hard alloy substrate 1 is provided with chamfering 4, has increased the bonded area of matrix 1 with diamond layer, gains in strength and shock resistance.
Be not limited to above-mentioned embodiment: of the present invention protruding 3 also can be conical, polygonal pyramid shape, as triangular pyramid, pentagonal pyramid or hexagonal pyramid etc., can also be truncated cone-shaped or frustum of a pyramid shape.
Claims (8)
1, polycrystalline diamond composite sheet matrix is characterized in that: the faying face of described matrix is provided with a plurality of projectioies.
2, polycrystalline diamond composite sheet matrix as claimed in claim 1 is characterized in that: described projection is taper shape, pyramid, taper type or truncated cone-shaped.
3, polycrystalline diamond composite sheet matrix as claimed in claim 1 or 2 is characterized in that: described projection is the center of circle with the center of the faying face of hard alloy substrate, is evenly distributed on a plurality of concentric circles.
4, polycrystalline diamond composite sheet matrix as claimed in claim 3 is characterized in that: linked to each other by the transition cambered surface between the described adjacent protrusion.
5, polycrystalline diamond composite sheet matrix as claimed in claim 1 is characterized in that: linked to each other by the transition cambered surface between the described adjacent protrusion.
6, polycrystalline diamond composite sheet matrix as claimed in claim 4 is characterized in that: the faying face edge of described hard alloy substrate is provided with chamfering.
7, polycrystalline diamond composite sheet matrix as claimed in claim 1 is characterized in that: the faying face edge of described hard alloy substrate is provided with chamfering.
8, polycrystalline diamond composite sheet matrix as claimed in claim 2 is characterized in that: the end face of described taper type or truncated cone-shaped projection is an arc surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066136A CN101658937A (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond composite sheet matrix |
| PCT/CN2010/075459 WO2011029350A1 (en) | 2009-09-14 | 2010-07-26 | Polycrystalline diamond composite sheet substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066136A CN101658937A (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond composite sheet matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101658937A true CN101658937A (en) | 2010-03-03 |
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ID=41787308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910066136A Pending CN101658937A (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond composite sheet matrix |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101658937A (en) |
| WO (1) | WO2011029350A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029350A1 (en) * | 2009-09-14 | 2011-03-17 | 河南晶锐超硬材料有限公司 | Polycrystalline diamond composite sheet substrate |
| CN102409981A (en) * | 2010-09-25 | 2012-04-11 | 中国石油集团渤海石油装备制造有限公司 | Assembled diamond compound sheet |
| CN101852065B (en) * | 2010-05-14 | 2012-08-29 | 苏州新锐硬质合金有限公司 | Diamond compact substrate |
| CN102678057A (en) * | 2012-05-22 | 2012-09-19 | 株洲西迪硬质合金科技有限公司 | Diamond composite sheet and preparation method thereof |
| CN103526095A (en) * | 2013-10-30 | 2014-01-22 | 河南晶锐超硬材料有限公司 | Hard alloy matrix for synthesis of polycrystalline diamond compact |
| CN104399990A (en) * | 2014-10-23 | 2015-03-11 | 金华中烨超硬材料有限公司 | Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof |
| CN110116212A (en) * | 2019-05-28 | 2019-08-13 | 河南四方达超硬材料股份有限公司 | A kind of sealed sintering device of composite polycrystal-diamond |
| CN112832688A (en) * | 2020-11-25 | 2021-05-25 | 中石化江钻石油机械有限公司 | Shock attenuation compound piece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681530A (en) * | 2019-02-28 | 2019-04-26 | 桂林星钻超硬材料有限公司 | A kind of rolling bearing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726791Y (en) * | 2004-09-15 | 2005-09-21 | 金瑞新材料科技股份有限公司 | Diamond composite sheet |
| CN101658937A (en) * | 2009-09-14 | 2010-03-03 | 河南晶锐超硬材料有限公司 | Polycrystalline diamond composite sheet matrix |
| CN201521249U (en) * | 2009-09-14 | 2010-07-07 | 河南晶锐超硬材料有限公司 | Polycrystalline diamond compact matrix |
-
2009
- 2009-09-14 CN CN200910066136A patent/CN101658937A/en active Pending
-
2010
- 2010-07-26 WO PCT/CN2010/075459 patent/WO2011029350A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029350A1 (en) * | 2009-09-14 | 2011-03-17 | 河南晶锐超硬材料有限公司 | Polycrystalline diamond composite sheet substrate |
| CN101852065B (en) * | 2010-05-14 | 2012-08-29 | 苏州新锐硬质合金有限公司 | Diamond compact substrate |
| CN102409981A (en) * | 2010-09-25 | 2012-04-11 | 中国石油集团渤海石油装备制造有限公司 | Assembled diamond compound sheet |
| CN102678057A (en) * | 2012-05-22 | 2012-09-19 | 株洲西迪硬质合金科技有限公司 | Diamond composite sheet and preparation method thereof |
| CN102678057B (en) * | 2012-05-22 | 2015-01-21 | 株洲西迪硬质合金科技有限公司 | Diamond composite sheet and preparation method thereof |
| CN103526095A (en) * | 2013-10-30 | 2014-01-22 | 河南晶锐超硬材料有限公司 | Hard alloy matrix for synthesis of polycrystalline diamond compact |
| CN104399990A (en) * | 2014-10-23 | 2015-03-11 | 金华中烨超硬材料有限公司 | Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof |
| CN110116212A (en) * | 2019-05-28 | 2019-08-13 | 河南四方达超硬材料股份有限公司 | A kind of sealed sintering device of composite polycrystal-diamond |
| CN112832688A (en) * | 2020-11-25 | 2021-05-25 | 中石化江钻石油机械有限公司 | Shock attenuation compound piece |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011029350A1 (en) | 2011-03-17 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100303 |