CN201521249U - Polycrystalline diamond compact matrix - Google Patents
Polycrystalline diamond compact matrix Download PDFInfo
- Publication number
- CN201521249U CN201521249U CN2009202234395U CN200920223439U CN201521249U CN 201521249 U CN201521249 U CN 201521249U CN 2009202234395 U CN2009202234395 U CN 2009202234395U CN 200920223439 U CN200920223439 U CN 200920223439U CN 201521249 U CN201521249 U CN 201521249U
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- China
- Prior art keywords
- matrix
- diamond
- hard alloy
- polycrystalline diamond
- composite sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 61
- 239000010432 diamond Substances 0.000 title claims abstract description 61
- 239000011159 matrix material Substances 0.000 title claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims description 30
- 239000002131 composite material Substances 0.000 claims description 23
- 230000007704 transition Effects 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 abstract description 10
- 239000010941 cobalt Substances 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 5
- 239000000428 dust Substances 0.000 description 10
- 230000035939 shock Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
- Carbon And Carbon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The utility model discloses a polycrystalline diamond compact matrix. The combined surface of the matrix is provided with a plurality of bosses. The combined surface of the hard alloy matrix is provided with a plurality of bosses, thus firstly increasing the combined area with a diamond layer and increasing the combined strength of the matrix and the diamond layer; secondly, under high temperature and high pressure conditions, when the diamond layer is formed on the matrix, the bosses are beneficial to flowing of the diamond powder, compacting the diamond powder, leading the compacting density of the diamond powder to be consistent, and improving the impact resistance and abrasion resistance of a product; and thirdly, the bosses are beneficial to upwards diffusing of cobalt in the hard alloy matrix, leading the cobalt to be more fully diffused into the diamond powder under the state of high-temperature liquid phase, and being uneasy to lead the cobalt to be congregated, thus leading the catalytic action of the cobalt to be better and more fully exerted so as to improve the performance of a product fully. In addition, the combined surface of the hard alloy matrix is provided with bosses, thus being capable of reducing the using amount of the diamond powder and reducing the manufacturing cost.
Description
Technical field
The utility model 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 abrasion resistance, 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, abrasion resistance 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 bonding surface of diamond layer on the hard alloy substrate promptly, and this kind combination has higher intensity, abrasion resistance and toughness.
At present, on the bonding surface 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 application life is short, and competitiveness is poor.
The utility model content
The purpose of this utility model provides the polycrystalline diamond composite sheet matrix of a kind of high comprehensive performance, low cost of manufacture.
For achieving the above object, the technical solution of the utility model is: a kind of polycrystalline diamond composite sheet matrix, the bonding surface 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 bonding surface 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 bonding surface 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.
In the utility model, being provided with a plurality of projectioies on the bonding surface 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 bonding surface 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 bonding surface 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 utility model embodiment one;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment two;
Fig. 4 is the structural representation of the utility model embodiment three;
Fig. 5 is the B-B sectional 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 bonding surface 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 bonding surface 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 bonding surface 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 bonding surface 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 bonding surface 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 bonding surface 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 utility model 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, it is characterized in that: the bonding surface 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 bonding surface 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 bonding surface 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 bonding surface 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234395U CN201521249U (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond compact matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234395U CN201521249U (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond compact matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521249U true CN201521249U (en) | 2010-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202234395U Expired - Lifetime CN201521249U (en) | 2009-09-14 | 2009-09-14 | Polycrystalline diamond compact matrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521249U (en) |
Cited By (5)
| 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 |
| CN102071877A (en) * | 2010-12-30 | 2011-05-25 | 西南石油大学 | Polycrystalline diamond compact |
| CN103470190A (en) * | 2013-09-22 | 2013-12-25 | 株洲硬质合金集团有限公司 | Diamond compact substrate |
| 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 |
| CN104131786A (en) * | 2014-06-25 | 2014-11-05 | 武汉玖石超硬材料有限公司 | Impact-resistant diamond hard alloy composite sheet |
-
2009
- 2009-09-14 CN CN2009202234395U patent/CN201521249U/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| CN102071877A (en) * | 2010-12-30 | 2011-05-25 | 西南石油大学 | Polycrystalline diamond compact |
| CN103470190A (en) * | 2013-09-22 | 2013-12-25 | 株洲硬质合金集团有限公司 | Diamond compact substrate |
| 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 |
| CN104131786A (en) * | 2014-06-25 | 2014-11-05 | 武汉玖石超硬材料有限公司 | Impact-resistant diamond hard alloy composite sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 451152 Zhongxing Road East section, North City, Henan, Xinzheng Patentee after: HENAN JINGRUI SUPERHARD MATERIAL CO., LTD. Address before: 451152 Zhongxing Road East section, North City, Henan, Xinzheng Patentee before: Henan Jingrui Superhard Material Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 451162 Henan airport, Zhengzhou, west side of Xingang Avenue Patentee after: HENAN JINGRUI SUPERHARD MATERIAL CO., LTD. Address before: 451152 Zhongxing Road East section, North City, Henan, Xinzheng Patentee before: HENAN JINGRUI SUPERHARD MATERIAL CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |