CN105644026A - Composite sheet substrate product with ternary composite gradient structure - Google Patents
Composite sheet substrate product with ternary composite gradient structure Download PDFInfo
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- CN105644026A CN105644026A CN201511030806.6A CN201511030806A CN105644026A CN 105644026 A CN105644026 A CN 105644026A CN 201511030806 A CN201511030806 A CN 201511030806A CN 105644026 A CN105644026 A CN 105644026A
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- composite sheet
- tri compound
- alloy substrate
- gradient
- layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/22—Nickel or cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2313/00—Elements other than metals
- B32B2313/04—Carbon
-
- 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)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a composite sheet substrate product with a ternary composite gradient structure and relates to the field of materials. Through the composite sheet substrate product with the ternary composite gradient structure, the local material property of an alloy substrate is adjusted, so that the bonding strength between the alloy substrate and a super-hard material layer is improved; the defects such as delamination, edge breakage and cracks and the like are effectively reduced; the produced composite sheet substrate body has higher stability, so that the produced composite sheet substrate body has stronger market competitiveness. The invention takes the improvement of matching property between the alloy substrate and the super-hard material as a starting point; the factors such as C gradient, Co gradient and WC particle gradient and the like of the alloy substrate can be adjusted; a novel ternary composite gradient layer is designed on the interface of the normal homogenous material hard alloy composite sheet substrate and is prepared into a special interface shape, so that the alloy layer is excellent in bonding strength and stress distribution state with the substrate and the super-hard polycrystalline layer; the composite sheet prepared by taking the hard alloy substrate with the composite gradient structure as a basis has longer service life.
Description
[technical field]
The present invention relates to Material Field, particularly relate to a kind of composite sheet matrix product with tri compound gradient-structure, be specifically related to the novel hard alloy composite sheet matrix of a kind of hard alloy-superhard material (referring specifically to polycrystalline diamond PCD, poly-product cubic boron nitride CBN) composite sheet.
[background technology]
Known, that hard alloy-Superhard composite materials is based on hard alloy and superhard material developed a class advanced composite material (ACM), is invented by the technical staff of U.S. GE the earliest. Have the toughness of hard alloy and the hardness of superhard material due to this type of material concurrently, usefulness and the service life of instrument are greatly improved.
Through the effort of the numerous scientific and technical personnel of domestic China superhard material Industry, the production domesticization work of hard alloy-Superhard composite materials achieves very big progress, instead of external imported product on many application scenarios. But, compared with external advanced hard alloy-Superhard composite materials product, domestic hard alloy-Superhard composite materials is in use easier to be there is crackle, collapses the defect such as limit, delamination, and its service life is often equivalent between the 50%��70% of imported product. In addition, domestic composite sheet is still within inferior position in stability, often occurs that single product performance is suitable with imported product performance, and batch products differs great situation with imported product performance.
In order to overcome above-mentioned technical problem, those skilled in the art generally set about from the following aspects:
(1) uniformity of the temperature of synthesis, pressure field is improved;
(2) multi-player super-hard material structure is adopted to strengthen interface stability;
(3) specific interfacial structure is adopted to carry out enhanced stability.
From the angle of CEMENTED CARBIDE PRODUCTION enterprise, being just particularly important according to the specific hard alloy substrate of the requirement developing of composite sheet, this also becomes the present stage hard alloy technical staff important demand on composite sheet matrix product.
[summary of the invention]
In order to overcome the deficiency existed in background technology, the invention provides a kind of composite sheet matrix product with tri compound gradient-structure, the present invention is by adjusting the material characteristic of alloy substrate local, improve alloy substrate and ultra hard material layer bond strength, effectively reduce layering, collapse the defect such as limit, crackle, the composite sheet matrix product produced is made to have better stability, thus having the higher market competitiveness.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A kind of composite sheet matrix product with tri compound gradient-structure, including top tri compound gradient layer and bottom homogenizing hard alloy substrate, described top tri compound gradient layer even uniform be covered on the homogenizing hard alloy substrate of bottom, the chemical composition precentagewise of described top tri compound gradient layer includes following composition:
C5.42%��5.6%;
Co8%��13%;
Surplus is W;
The chemical composition precentagewise of described bottom homogenizing hard alloy substrate includes following composition:
C5.32%��5.5%;
Co10%��16%;
Surplus is W.
The described composite sheet matrix product with tri compound gradient-structure, described top tri compound gradient layer choose have high C, low Co, thin WC grain feature alloy as tri compound gradient layer.
The described composite sheet matrix product with tri compound gradient-structure, in the tri compound gradient layer of described top, in gradient layer, the grain size of fine grained WC is 0.4��1.5.
The described composite sheet matrix product with tri compound gradient-structure, in the matrix of homogenizing hard alloy substrate middle and lower part, described bottom, the grain size of coarse-grained WC is 1.5��5.0.
The described composite sheet matrix product with tri compound gradient-structure, the thickness of described top tri compound gradient layer is 0.5mm��2mm.
The described composite sheet matrix product with tri compound gradient-structure, the external diameter of described bottom homogenizing hard alloy substrate is �� 8mm���� 30mm.
The described composite sheet matrix product with tri compound gradient-structure, the thickness of described bottom homogenizing hard alloy substrate is 2mm��14mm.
Adopt technical scheme as above, have the advantages that
A kind of composite sheet matrix product with tri compound gradient-structure of the present invention, the present invention is by adjusting the material characteristic of alloy substrate local, improve alloy substrate and ultra hard material layer bond strength, effectively reduce layering, collapse limit, the defects such as crackle, the composite sheet matrix product produced is made to have better stability, thus having the higher market competitiveness, the present invention is to improve alloy substrate with superhard material matching for starting point, adjust alloy substrate C gradient, Co gradient, the factors such as WC particle gradient, conventional uniform material hard alloy complex sheet basal body interface designs a new tri compound gradient layer, and it is fabricated to specific interface shape, make this alloy-layer and matrix, superhard glomerocryst layer all has good bond strength and stress distribution, so that the composite sheet of preparation has more excellent service life based on this complex gradient structure hard alloy substrate.
[accompanying drawing explanation]
Fig. 1 is the vertical section structure schematic diagram of the present invention;
Fig. 2 is the metallograph that gradient layer of the present invention and matrix intersection amplify 500 times;
In the drawings: 1, fine grained WC in gradient layer; 2, top tri compound gradient layer; 3, coarse-grained WC in the matrix of bottom; 4, bottom homogenizing hard alloy substrate.
[detailed description of the invention]
The present invention can be explained in more detail by the following examples, the invention is not limited in the following examples;
In conjunction with accompanying drawing 1��2, a kind of composite sheet matrix product with tri compound gradient-structure of the present invention, including top tri compound gradient layer 2 and bottom homogenizing hard alloy substrate 4, composite sheet matrix for external diameter �� 8mm��different for �� 30mm, the size of top tri compound gradient layer 2 is determined, it is determined that the thickness of top tri compound gradient layer is 0.5mm-2mm according to required composite sheet matrix interfacial structure;Further, for guarantee top tri compound gradient layer 2 and bottom homogenizing hard alloy substrate 4 in conjunction with stable and uniform, described top tri compound gradient layer 2 even uniform be covered on bottom homogenizing hard alloy substrate 4, it is to avoid cause the phenomenon that superhard glomerocryst layer and hard alloy substrate bond strength are unstable because became uneven is even; Realizing secondary material distributing by thruster feed mechanism, make the smooth combination of top tri compound gradient layer 2 and bottom homogenizing hard alloy substrate 4, the interface of the two still embodies good falt characteristic after amplifying 500 times, is specifically shown in accompanying drawing 2; The chemical composition precentagewise of described top tri compound gradient layer 2 includes following composition:
C5.42%��5.6%;
Co8%��13%;
Surplus is W;
The chemical composition precentagewise of described bottom homogenizing hard alloy substrate 4 includes following composition:
C5.32%��5.5%;
Co10%��16%;
Surplus is W.
Wherein said top tri compound gradient layer 2 choose have high C, low Co, thin WC grain feature alloy as tri compound gradient layer. In wherein said top tri compound gradient layer 2, in gradient layer, the grain size of fine grained WC1 is 0.4��1.5. In in the matrix of homogenizing hard alloy substrate 4 middle and lower part, wherein said bottom, the grain size of coarse-grained WC 3 is 1.5��5.0. The thickness of wherein said bottom homogenizing hard alloy substrate 4 is 2mm��14mm.
The present invention has excellent bond strength, through verification experimental verification, choose have high C, low Co, thin WC grain feature alloy as tri compound gradient layer, the chemical composition of complex gradient layer and bottom matrix and characteristics of organizational structure are in Table 1.
The chemical composition of table 1 gradient layer and bottom matrix and crystallite size
Select the alloy with features above as complex gradient layer, it is primarily to realization: complex gradient layer is in composite sheet building-up process, the migration of Co ultra-hard material poly-crystal layer and matrix in opposite directions is realized by capillarity, high C becomes branch to reduce the difficulty that liquid phase occurs, reduce the viscosity of liquid phase, be conducive to the realization of this process; After Co in complex gradient layer migrates, not only improving the recrystallization growth of polycrystalline diamond layer, also reducing the Co content in gradient layer, thus improve the heat stability of composite sheet; Meanwhile, the interfacial structure that WC grain is uniformly tiny has better compatible deformation effect, so that gradient layer and superhard glomerocryst layer have higher bond strength.
Specific embodiments of the invention are as follows:
Embodiment 1:
Bottom homogenizing hard alloy substrate 4 is of a size of �� 17.2mm, and total height is 12.3mm, and top tri compound gradient layer 2 thickness is 2mm. The design of its composition and wc grain size design in Table 2.
Table 2 example 1 composition and structural design
Embodiment 2:
Bottom homogenizing hard alloy substrate 4 is of a size of �� 14.6mm, and total height is 7.2mm, and top tri compound gradient layer 2 thickness is 1mm. The design of its composition and wc grain size design in Table 3.
Table 3 example 2 composition and structural design
Present invention have the advantage that
The present invention is by adjusting the material characteristic of alloy substrate local, improve alloy substrate and ultra hard material layer bond strength, effectively reduce layering, collapse the defect such as limit, crackle so that the compact product produced has better stability, thus having higher competitiveness.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article for the open purpose of the present invention, it is suitable to be presently considered to be.It is to be understood that it is contemplated that include all changes belonging to embodiment in this design and invention scope and improvement.
Claims (7)
1. a composite sheet matrix product with tri compound gradient-structure, including top tri compound gradient layer (2) and bottom homogenizing hard alloy substrate (4), it is characterized in that: described top tri compound gradient layer (2) even uniform be covered on bottom homogenizing hard alloy substrate (4), the chemical composition precentagewise of described top tri compound gradient layer (2) includes following composition:
C5.42%��5.6%;
Co8%��13%;
Surplus is W;
The chemical composition precentagewise of described bottom homogenizing hard alloy substrate (4) includes following composition:
C5.32%��5.5%;
Co10%��16%;
Surplus is W.
2. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: described top tri compound gradient layer (2) choose have high C, low Co, thin WC grain feature alloy as tri compound gradient layer.
3. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: in described top tri compound gradient layer (2), in gradient layer, the grain size of fine grained WC (1) is 0.4��1.5.
4. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: in the matrix of homogenizing hard alloy substrate (4) middle and lower part, described bottom, the grain size of coarse-grained WC (3) is 1.5��5.0.
5. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: the thickness of described top tri compound gradient layer (2) is 0.5mm��2mm.
6. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: the external diameter of described bottom homogenizing hard alloy substrate (4) is �� 8mm���� 30mm.
7. the composite sheet matrix product with tri compound gradient-structure according to claim 1, is characterized in that: the thickness of described bottom homogenizing hard alloy substrate (4) is 2mm��14mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030806.6A CN105644026B (en) | 2015-12-25 | 2015-12-25 | A kind of composite sheet matrix product with tri compound gradient-structure |
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| CN201511030806.6A CN105644026B (en) | 2015-12-25 | 2015-12-25 | A kind of composite sheet matrix product with tri compound gradient-structure |
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| CN105644026A true CN105644026A (en) | 2016-06-08 |
| CN105644026B CN105644026B (en) | 2018-08-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057894A (en) * | 2017-12-12 | 2018-05-22 | 鑫京瑞钨钢（厦门）有限公司 | A kind of gradient hard alloy pole |
| CN108620595A (en) * | 2018-04-03 | 2018-10-09 | 鑫京瑞钨钢（厦门）有限公司 | Hard alloy screw nut mold with multilayered and graded structure and its manufacturing method |
| CN110905923A (en) * | 2019-11-29 | 2020-03-24 | 株洲金韦硬质合金有限公司 | Double-structure adhesive sheet for radial bearing and manufacturing method thereof |
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| CN103691960A (en) * | 2013-12-25 | 2014-04-02 | 苏州新锐合金工具股份有限公司 | Double-layer hard alloy matrix and production method thereof |
| CN104047548A (en) * | 2013-03-13 | 2014-09-17 | 江雨明 | Diamond drill tooth with cobalt content gradient |
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2015
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Patent Citations (7)
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| CN2906032Y (en) * | 2005-11-24 | 2007-05-30 | 江汉石油钻头股份有限公司 | Polycrystalline diamond composite sheet with granular gradient |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057894A (en) * | 2017-12-12 | 2018-05-22 | 鑫京瑞钨钢（厦门）有限公司 | A kind of gradient hard alloy pole |
| CN108057894B (en) * | 2017-12-12 | 2019-11-15 | 鑫京瑞钨钢（厦门）有限公司 | A kind of gradient hard alloy pole |
| CN108620595A (en) * | 2018-04-03 | 2018-10-09 | 鑫京瑞钨钢（厦门）有限公司 | Hard alloy screw nut mold with multilayered and graded structure and its manufacturing method |
| CN108620595B (en) * | 2018-04-03 | 2019-06-04 | 鑫京瑞钨钢（厦门）有限公司 | Hard alloy screw nut mold and its manufacturing method with multilayered and graded structure |
| CN110905923A (en) * | 2019-11-29 | 2020-03-24 | 株洲金韦硬质合金有限公司 | Double-structure adhesive sheet for radial bearing and manufacturing method thereof |
| CN110905923B (en) * | 2019-11-29 | 2021-11-30 | 株洲金韦硬质合金有限公司 | Double-structure adhesive sheet for radial bearing and manufacturing method thereof |
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| CN105644026B (en) | 2018-08-03 |
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