CN106121542A - A kind of polygon diamond compact substrate - Google Patents
A kind of polygon diamond compact substrate Download PDFInfo
- Publication number
- CN106121542A CN106121542A CN201610729316.3A CN201610729316A CN106121542A CN 106121542 A CN106121542 A CN 106121542A CN 201610729316 A CN201610729316 A CN 201610729316A CN 106121542 A CN106121542 A CN 106121542A
- Authority
- CN
- China
- Prior art keywords
- annular
- protruding
- polygon
- arranges
- shape
- 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.)
- Pending
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 36
- 239000010432 diamond Substances 0.000 title claims abstract description 36
- 239000000758 substrate Substances 0.000 title claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 16
- 238000005245 sintering Methods 0.000 abstract description 7
- 239000000956 alloy Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000843 powder Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of polygon diamond compact substrate, including cemented carbide body, it is protruding that cemented carbide body end face arranges several annular polygons shapes, between every two annular polygons shape projections, groove is set, arrange in the middle part of cemented carbide body end face to recessed ring-shaped platform, it is protruding that the periphery of ring-shaped platform arranges the first annular polygon higher than the surface of ring-shaped platform, arranges annular compound platform at the outer edge of cemented carbide body, and the upper surface of annular compound platform is less than the upper surface of ring-shaped platform.The structure that it provides, improves the bond strength at composite surface, makes composite polycrystal-diamond sintering more stable, annular polygons shape structure adds the ability orienting cutting in use, when using in oil-gas geology is drilled, work efficiency improves about 10%, and extends cutting-tool's used life.
Description
Technical field
The present invention relates to composite, be a kind of polygon diamond compact substrate.
Background technology
Diamond compact is at high temperature to be sintered by hard alloy layer and polycrystalline diamond layer to form, diamond compact
There are high hardness, wearability and impact resistance etc., be mainly used in the rapidoprint of various instrument.Due to diamond and hard
Alloy has different physics, chemical property, has larger difference at the aspect such as thermal coefficient of expansion and modulus of elasticity, therefore, is burning
Cooling, the meeting of intensification during knot produce bigger thermal residual strain to the interface cohesion of bi-material, and this stress directly affects
The performance of diamond compact, to this end, those skilled in the art provide multiple diamond compact substrate, during to reduce sintering
Polycrystalline diamond layer and the stress of hard alloy layer interface cohesion.But existing diamond compact structure exist more not
Foot, the connection at interface easily remaining thermal stress, construction features causes diamond compact to be prone to and hard alloy delamination, and interface is easily produced
Raw crackle, during work, diamond layer is easy to fall off and ruptures, and some technical scheme uses groove structure, have impact on the internal CO of alloy first
The seepage distance of element, causes the centre of diamond compact to be difficult to sintering completely, affects the quality etc. of diamond compact.
Summary of the invention
It is an object of the invention to provide a kind of polygon diamond compact substrate, it can solve the problem that prior art is not
Foot.
The present invention for achieving the above object, by the following technical programs: a kind of polygon diamond compact substrate, including
Cemented carbide body, it is protruding that cemented carbide body end face arranges several annular polygons shapes, arranges between every two annular polygons shape projections
Groove, is arranged in the middle part of cemented carbide body end face to recessed ring-shaped platform, and the periphery of ring-shaped platform arranges the table than ring-shaped platform
The first annular polygon projection that face is high, arranges annular compound platform at the outer edge of cemented carbide body, annular compound platform
Upper surface is less than the upper surface of ring-shaped platform.It is U-shaped that groove between every two annular polygons shape projections longitudinally cuts shape.Hard closes
It is protruding that gold body end face arranges four annular polygons shapes, and first annular polygon is protruding and arranges the between the second annular polygons shape projection
One groove, arranges the second groove between the second annular polygons shape projection and the 3rd annular polygons shape projection, and it is convex that the 3rd annular connects shape more
Rise and fourth annular polygon, the 3rd groove is set between projection.Annular polygons shape projection is connected with each other by a plurality of straight flange and forms,
The straight flange of annular polygons shape projection is 16-25 bar.First annular polygon is protruding, the second annular polygons shape is protruding, the 3rd annular
Connect shape protruding is all 16 with the polygonal straight flange of fourth annular more.The upper surface of ring-shaped platform is higher than every two annular polygons shapes
The basal surface of groove between projection.The straight flange of annular polygons shape projection is 16-20 bar.
The diamond compact substrate that the present invention provides, significantly reduces diamond and produces with during hard alloy layer interface cohesion
Raw bigger residual stress, decreases the difference between polycrystalline diamond each several part performance, it is ensured that polycrystalline diamond layer sintering
Uniformity, improves drill bit when composite polycrystal-diamond does the use of drill bit raw material and creeps into stablizing of performance, during work, Buddha's warrior attendant
Rock layers difficult drop-off, do not rupture.
The structure that the present invention provides, improves the bond strength at composite surface, makes composite polycrystal-diamond sinter more
Stable, annular polygons shape structure adds the ability orienting cutting in use, when using in oil-gas geology is drilled, and work efficiency
Improve about 10%, and extend cutting-tool's used life.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention；Accompanying drawing 2 is the plan structure schematic diagram of Fig. 1.
Detailed description of the invention
The present invention will be further described for comparison accompanying drawing.
A kind of polygon diamond compact substrate of the present invention, including cemented carbide body 1, cemented carbide body 1 pushes up
It is protruding that face arranges several annular polygons shapes, arranges groove, in the middle part of cemented carbide body 1 end face between every two annular polygons shape projections
Arranging to recessed ring-shaped platform 3, the periphery of ring-shaped platform 3 arranges the first annular polygon higher than the surface of ring-shaped platform 3
Protruding 4, annular compound platform 2 is set at the outer edge of cemented carbide body 1, the upper surface of annular compound platform 2 is less than annular flat
The upper surface of platform 3, it is U-shaped that the groove between every two annular polygons shape projections longitudinally cuts shape.Hard alloy of the present invention
Body 1 end face is composite surface, is the composite surface of polycrystalline diamond and hard alloy.The middle part of composite surface of the present invention arrange to recessed
Ring-shaped platform 3, place the higher diadust of CO concentration thereon and composite sheet glomerocryst layer can be made to carry out High Temperature High Pressure burning
In knot, making the CO element of ring-shaped platform 3 in the middle part of alloy substrate, full and uniform under high-temperature liquid-phase state to be diffused into diamond micro-
In the middle of powder, it is to avoid form the segregation of CO, promote periphery and the uniformity of centre sintering of composite sheet, improve in composite sheet
The sintering strength at heart position, and the life-span during composite sheet uses can be extended.The annular polygons shape projection of present invention design is a kind of
Circumscribed circle polygon, such a structure increases the bonded area of matrix and bortz powder, and combination composite surface at is greatly improved
Intensity, makes composite polycrystal-diamond sintering more stable, and serviceability is greatly improved, and improves work efficiency.
The further scheme that the present invention provides is: it is protruding that cemented carbide body 1 end face arranges four annular polygons shapes, the first ring
First groove 10, the second annular polygons shape protruding 5 and the 3rd are set between shape polygon protruding 4 and the second annular polygons shape projection 5
Arranging the second groove 9 between annular polygons shape projection 6, the 3rd annular connects shape protruding 6 and fourth annular polygon more, sets between protruding 7
Put the 3rd groove 8.This is the selection scheme that can reach excellent effect, it is possible to further raising matrix is abundant with bortz powder
Bonded area, improves the bond strength at composite surface further.
The further priority scheme of the present invention is: annular polygons shape projection is connected with each other by a plurality of straight flange and forms, annular
The straight flange of polygon projection is 16-25 bar, and first annular polygon projection the 4, second annular polygons shape projection the 5, the 3rd annular is many
Even the straight flange of shape protruding 6 and fourth annular polygon 7 is all 16.Preferred scheme is;The straight flange that annular polygons shape is protruding
It it is 16-20 bar.
The upper surface of ring-shaped platform 3 of the present invention is higher than the basal surface of groove between every two annular polygons shape projections.
Further increase CO Elements Diffusion in diadust, it is to avoid form the diffusion tomography of CO element.
Claims (7)
1. a polygon diamond compact substrate, including cemented carbide body (1), it is characterised in that: cemented carbide body (1) pushes up
It is protruding that face arranges several annular polygons shapes, arranges groove, in cemented carbide body (1) end face between every two annular polygons shape projections
Portion arranges to recessed ring-shaped platform (3), and the periphery of ring-shaped platform (3) arranges first ring higher than the surface of ring-shaped platform (3)
Shape polygon is protruding (4), arranges annular compound platform (2) at the outer edge of cemented carbide body (1), annular compound platform (2)
Upper surface is less than the upper surface of ring-shaped platform (3).
A kind of polygon diamond compact substrate the most according to claim 1, it is characterised in that: every two annular polygons
It is U-shaped that groove between shape projection longitudinally cuts shape.
A kind of polygon diamond compact substrate the most according to claim 1, it is characterised in that: cemented carbide body (1)
It is protruding that end face arranges four annular polygons shapes, arranges between first annular polygon protruding (4) and the second annular polygons shape protruding (5)
First groove (10), arranges the second groove (9) between the second annular polygons shape protruding (5) and the 3rd annular polygons shape protruding (6), the
Three annulars connect shape protruding (6) and fourth annular polygon more, arrange the 3rd groove (8) between protruding (7).
A kind of polygon diamond compact substrate the most according to claim 1, it is characterised in that: annular polygons shape is protruding
Being connected with each other by a plurality of straight flange and form, the straight flange of annular polygons shape projection is 16-25 bar.
A kind of polygon diamond compact substrate the most according to claim 3, it is characterised in that: first annular polygon
Protruding (4), the second annular polygons shape protruding (5), the 3rd annular connect shape protruding (6) and the straight flange of fourth annular polygon (7) more
It it is all 16.
A kind of polygon diamond compact substrate the most according to claim 1, it is characterised in that: ring-shaped platform (3)
Upper surface is higher than the basal surface of groove between every two annular polygons shape projections.
A kind of polygon diamond compact substrate the most according to claim 4, it is characterised in that: annular polygons shape is protruding
Straight flange be 16-20 bar.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729316.3A CN106121542A (en) | 2016-08-26 | 2016-08-26 | A kind of polygon diamond compact substrate |
| PCT/CN2016/105252 WO2018035981A1 (en) | 2016-08-26 | 2016-11-09 | Polygonal composite sheet matrix comprising diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729316.3A CN106121542A (en) | 2016-08-26 | 2016-08-26 | A kind of polygon diamond compact substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121542A true CN106121542A (en) | 2016-11-16 |
Family
ID=57275320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729316.3A Pending CN106121542A (en) | 2016-08-26 | 2016-08-26 | A kind of polygon diamond compact substrate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106121542A (en) |
| WO (1) | WO2018035981A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5120327A (en) * | 1991-03-05 | 1992-06-09 | Diamant-Boart Stratabit (Usa) Inc. | Cutting composite formed of cemented carbide substrate and diamond layer |
| US6488106B1 (en) * | 2001-02-05 | 2002-12-03 | Varel International, Inc. | Superabrasive cutting element |
| CN201738816U (en) * | 2010-08-25 | 2011-02-09 | 株洲硬质合金集团有限公司 | Diamond compact substrate |
| CN204075223U (en) * | 2014-08-07 | 2015-01-07 | 山东昌润钻石股份有限公司 | A kind of diamond compact substrate |
| CN204782791U (en) * | 2015-05-26 | 2015-11-18 | 株洲翔宇硬质合金有限公司 | Cylindrical diamond compact piece carbide base member |
| CN206091881U (en) * | 2016-08-26 | 2017-04-12 | 聊城市昌润复合材料有限公司 | Polygon diamond compact piece base member |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571891B1 (en) * | 1996-04-17 | 2003-06-03 | Baker Hughes Incorporated | Web cutter |
| US5711702A (en) * | 1996-08-27 | 1998-01-27 | Tempo Technology Corporation | Curve cutter with non-planar interface |
| US6041875A (en) * | 1996-12-06 | 2000-03-28 | Smith International, Inc. | Non-planar interfaces for cutting elements |
| CN203441374U (en) * | 2013-04-27 | 2014-02-19 | 北京远东恒嘉新材料有限公司 | Cylindrical hard alloy matrix for polycrystalline diamond compact |
| CN105215388A (en) * | 2015-10-15 | 2016-01-06 | 河南晶锐新材料股份有限公司 | A kind of hard alloy substrate and composite polycrystal-diamond |
-
2016
- 2016-08-26 CN CN201610729316.3A patent/CN106121542A/en active Pending
- 2016-11-09 WO PCT/CN2016/105252 patent/WO2018035981A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5120327A (en) * | 1991-03-05 | 1992-06-09 | Diamant-Boart Stratabit (Usa) Inc. | Cutting composite formed of cemented carbide substrate and diamond layer |
| US6488106B1 (en) * | 2001-02-05 | 2002-12-03 | Varel International, Inc. | Superabrasive cutting element |
| CN201738816U (en) * | 2010-08-25 | 2011-02-09 | 株洲硬质合金集团有限公司 | Diamond compact substrate |
| CN204075223U (en) * | 2014-08-07 | 2015-01-07 | 山东昌润钻石股份有限公司 | A kind of diamond compact substrate |
| CN204782791U (en) * | 2015-05-26 | 2015-11-18 | 株洲翔宇硬质合金有限公司 | Cylindrical diamond compact piece carbide base member |
| CN206091881U (en) * | 2016-08-26 | 2017-04-12 | 聊城市昌润复合材料有限公司 | Polygon diamond compact piece base member |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018035981A1 (en) | 2018-03-01 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
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| WD01 | Invention patent application deemed withdrawn after publication |