CN204098790U - A kind of Superhard composite materials - Google Patents
A kind of Superhard composite materials Download PDFInfo
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- CN204098790U CN204098790U CN201420431986.3U CN201420431986U CN204098790U CN 204098790 U CN204098790 U CN 204098790U CN 201420431986 U CN201420431986 U CN 201420431986U CN 204098790 U CN204098790 U CN 204098790U
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Abstract
The utility model relates to a kind of Superhard composite materials.Superhard composite materials comprises matrix and ultra hard material layer, each side of described matrix all has for being combined fixing bonding surface with described ultra hard material layer, described ultra hard material layer is combined by the bonding surface on each side of described matrix and is fixed on matrix, and the part that described ultra hard material layer is combined on each described bonding surface is interconnected.Therefore, compared with prior art, each side of matrix can be relied between matrix and ultra hard material layer to have larger bonded area, and the ultra hard material layer part be combined on each described bonding surface is interconnected and the ultra hard material layer being positioned at a certain side place can be enable to rely on the ultra hard material layer be adjacent to be combined with matrix more firmly, bear larger stressed, thus effectively prevent the bonding surface between matrix and superhard material to ftracture, formed and firmly combine.
Description
Technical field
The utility model relates to a kind of Superhard composite materials.
Background technology
Superhard material has very high intensity and good anti-wear performance, and such as polycrystalline diamond, cubic boron nitride or pottery etc., be often applied to the occasion such as drilling tool, blade.Overall polycrystalline diamond blade, overall cubic boron nitride blade and ceramic tip working region only have cutting edge position, the effect of support is only played at blade other positions except cutting edge in working angles, but polycrystalline diamond, cubic boron nitride material and ceramic materials do backing material exists certain defect, its cost is high, matter is crisp, not easily fluting or perforate, so overall polycrystalline diamond, cubic boron nitride blade and ceramic tip generally do not arrange blade locating hole.Further, because cutter will lose value after the cutting edge wearing and tearing of these integral knife blade, therefore can waste the raw materials such as a lot of diamond or cubic boron nitride, not meet the development trend of environment protecting and power-saving.
Superhard composite materials is generally by polycrystalline diamond, cubic boron nitride or ceramic materials and carbide alloy sinter and form under high-temperature and high-pressure conditions, polycrystalline diamond, cubic boron nitride or ceramic materials are as working lining, carbide alloy is as supporter, the two composite sheet be composited can have polycrystalline diamond concurrently, cubic boron nitride or ceramic materials high rigidity, the high strength of high abrasion characteristic and carbide alloy, the features such as toughness, the machining of hardened material and difficult-to-machine material can be widely used in as composite blade, as hardened steel, high-alloy wear-resisting casting iron, high temperature alloy, high-speed steel, surface spraying weld material, the machining of the difficult-to-machine materials such as sintered metal materials.But, polycrystalline diamond, cubic boron nitride or ceramic materials and carbide compound cutter are in sintering process, because the coefficient of expansion between bi-material is different, degree of wetting is not high, and the bonding surface between early stage bi-material is plane structure, therefore undesirable in conjunction with effect, bonding surface place easily produces cracking.Application number is 201120224121.6, Authorization Notice No. is that the Chinese patent of CN 202181849 U discloses a kind of diamond hard alloy complex sheet, comprise matrix that carbide alloy makes and by the polycrystalline diamond layer of high pressure-temperature sintering at hard alloy substrate upper surface, described hard alloy substrate upper surface is provided with and is uniformly distributed and the protrusion element that staggers of front and back, make the groove around each protrusion element spaced apart and be interconnected, this protrusion element can be tetragonous cone table, the frustum of a cone, cuboid, cylinder or positive hexagonal pyramid platform, thus improve the bond strength of hard alloy substrate and polycrystalline diamond layer to a certain extent, reduce stress, improve impact resistance.But because the coefficient of expansion between bi-material is different, the problem that degree of wetting is not high still exists, and the bond strength of above-mentioned composite sheet and shock resistance are still very limited, still there will be the problem of bonding surface cracking.
Utility model content
The purpose of this utility model is to provide a kind of Superhard composite materials that can effectively prevent the bonding surface between matrix and superhard material to ftracture.
The technical scheme that a kind of Superhard composite materials of the utility model adopts is: a kind of Superhard composite materials, comprise matrix and ultra hard material layer, each side of described matrix all has for being combined fixing bonding surface with described ultra hard material layer, described ultra hard material layer is combined by the bonding surface on each side of described matrix and is fixed on matrix, and the part that described ultra hard material layer is combined on each described bonding surface is interconnected.
Described bonding surface is the evagination bonding surface towards outer lug, is connected smoothly between the evagination bonding surface on each side of described matrix.
The height of projection of described evagination bonding surface is less than the radius of corresponding matrix corresponding side surface or is less than the half of the length of side of corresponding matrix corresponding side surface.
Described bonding surface is the bonding surface being provided with bulge-structure and/or sunk structure, and the seamed edge of described bulge-structure or sunk structure is provided with chamfering.
The whole external surface of described matrix is bonding surface, and described matrix is covered by described ultra hard material layer completely.
Described matrix is provided with the blade locating hole of through respective side, and the surface on described matrix except the aperture of blade locating hole is bonding surface.
The utility model adopts technique scheme, each side of the matrix of Superhard composite materials all has for being combined fixing bonding surface with described ultra hard material layer, described ultra hard material layer is combined by the bonding surface on each side of described matrix and is fixed on matrix, the part that described ultra hard material layer is combined on each described bonding surface is interconnected, therefore, compared with prior art, each side of matrix can be relied between matrix and ultra hard material layer to have larger bonded area, and the ultra hard material layer part be combined on each described bonding surface is interconnected and the ultra hard material layer being positioned at a certain side place can be enable to rely on the ultra hard material layer be adjacent to be combined with matrix more firmly, bear larger stressed, thus effectively prevent the bonding surface between matrix and superhard material to ftracture, formed and firmly combine.
Accompanying drawing explanation
Fig. 1 is the sectional view of the embodiment one of a kind of Superhard composite materials in the utility model;
Fig. 2 is A-A sectional view of Fig. 1;
Fig. 3 is the profile of sunk structure and the schematic diagram of shape on the upper surface of matrix in Fig. 1 and soffit;
Fig. 4 is the A '-A ' sectional view of Fig. 3;
Fig. 5 is the schematic shapes of sunk structure in Fig. 4;
Fig. 6 is the sectional view (matrix surface sunk structure is not shown) of the embodiment two of a kind of Superhard composite materials in the utility model;
Fig. 7 is B-B sectional view (sunk structure of matrix surface is not shown) of Fig. 6;
Fig. 8 be matrix in Fig. 6 bonding surface on the profile enlarged diagram of sunk structure;
Fig. 9 is the schematic shapes of sunk structure in Fig. 8;
Figure 10 is the sectional view (bulge-structure and the sunk structure of matrix surface are not shown) of the embodiment three of a kind of Superhard composite materials in the utility model;
Figure 11 is C-C sectional view (bulge-structure and the sunk structure of matrix surface are not shown) of Figure 10;
Figure 12 is the bonding surface projection structure of matrix in Figure 10 and the profile enlarged diagram of sunk structure;
Figure 13 is the schematic shapes of Figure 12 relief structure and sunk structure;
Figure 14 is the sectional view (bulge-structure of matrix surface is not shown) of the embodiment four of a kind of Superhard composite materials in the utility model;
Figure 15 is D-D sectional view (bulge-structure of matrix surface is not shown) of Figure 14;
Figure 16 is the profile enlarged diagram of the bonding surface projection structure of matrix in Figure 14;
Figure 17 is the schematic shapes of Figure 16 relief structure;
Figure 18 is the sectional view (bulge-structure of matrix surface is not shown) of the embodiment five of a kind of Superhard composite materials in the utility model;
Figure 19 is E-E sectional view (bulge-structure of matrix surface is not shown) of Figure 18;
Figure 20 is the profile enlarged diagram of the bonding surface projection structure of matrix in Figure 18;
Figure 21 is the schematic shapes of Figure 20 relief structure;
Figure 22 is the schematic diagram of a kind of arrangement mode of local crowning structure or sunk structure on Superhard composite materials in the utility model;
Figure 23 is the schematic diagram of the another kind of arrangement mode of local crowning structure or sunk structure on Superhard composite materials in the utility model.
The name that in figure, each Reference numeral is corresponding is called: 1 matrix, 11 bulge-structures, 12 sunk structures, 13 blade locating holes, 2 ultra hard material layers.
Detailed description of the invention
In the utility model, a kind of embodiment of Superhard composite materials is just like shown in Fig. 1 ~ Fig. 5, it is the superhard material composite blade for field of machining, this superhard material composite blade is cross section is circular circular shear blade, matrix 1 two parts be made up of ultra hard material layer 2 and carbide alloy form, matrix 1 is arranged on the center of ultra hard material layer 2, forms cored structure.The shape of matrix 1 is close to cylindric, and have upper surface, soffit and periphery three sides, upper surface, soffit and periphery are the evagination bonding surface of outside projection in the arc-shaped, are connected smoothly between three; The intermediate sizes of evagination bonding surface on periphery on the axial direction of matrix 1 is greater than both sides size.The upper surface of matrix 1 and soffit are equipped with the sunk structure 12 of irregular alignment, comprise ring-shaped depression and eight radial indentations be disposed radially that two circles coaxially arrange, the width of radial indentations is outwards increased gradually by the center of circle, surface area region not of uniform size is isolated at the upper surface of matrix 1 and soffit, region list area near the center of circle is little, surface area away from the center of circle is large, can ensure the good combination of matrix 1 and ultra hard material layer 2; It is columniform sunk structure 12 that the periphery of matrix 1 is provided with shape, as shown in Figure 5.During manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, the ultra hard material layer 2 that sintering is formed can completely coated for matrix 1, and be combined fixing by the evagination bonding surface being provided with sunk structure 12 with matrix 1.
In the utility model, the embodiment two of Superhard composite materials is as shown in Fig. 6 ~ Fig. 9, be with the difference of embodiment one: in the present embodiment, the diamond shaped insert of superhard material composite blade to be cross section be rhombus, matrix 1 has six sides such as upper surface, soffit and four lateral surfaces, and six sides are outside projection in the arc-shaped and the evagination bonding surface be connected smoothly each other.Six sides of matrix 1 are equipped with the sunk structure 12 of frustum of a pyramid shape, pyramid bus and baseline angle are less than 90 °, and small end inwardly.During manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, the ultra hard material layer 2 that sintering is formed can completely coated for matrix 1, and be combined fixing by the evagination bonding surface being provided with sunk structure 12 with matrix 1.
In the utility model, embodiment three such as Figure 10 ~ Figure 13 of Superhard composite materials shows, be with the difference of embodiment one: in the present embodiment, superhard material composite blade is cross section is square square blade, matrix 1 has six sides such as upper surface, soffit and four lateral surfaces, and six sides are outside projection in the arc-shaped and the evagination bonding surface be connected smoothly each other.Six sides of matrix 1 are equipped with sunk structure 12 and the bulge-structure 11 of square column shape.During manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, the ultra hard material layer 2 that sintering is formed can completely coated for matrix 1, and be combined fixing by the evagination bonding surface being provided with sunk structure 12 and bulge-structure 11 with matrix 1.
In the utility model, the embodiment four of Superhard composite materials is as shown in Figure 14 ~ Figure 17, be with the difference of embodiment one: in the present embodiment, superhard material composite blade is cross section is leg-of-mutton triangular blade, matrix 1 has five sides such as upper surface, soffit and three lateral surfaces, and five sides are outside projection in the arc-shaped and the evagination bonding surface be connected smoothly each other.Five sides of matrix 1 are equipped with the bulge-structure 11 of truncated cone shape, element of cone and baseline angle are less than 90 °, and large end inwardly.During manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, the ultra hard material layer 2 that sintering is formed can completely coated for matrix 1, and be combined fixing by the evagination bonding surface being provided with bulge-structure 11 with matrix 1.
In the utility model, the embodiment five of Superhard composite materials is as shown in Figure 18 ~ Figure 21, be with the difference of embodiment three: in the present embodiment, six sides of matrix 1 are equipped with the bulge-structure 11 of frustum of a pyramid shape, pyramid bus and baseline angle are less than 90 °, and large end inwardly.And, Finished blades is provided with the blade locating hole 13 of through upper surface and soffit, during manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, surface on matrix 1 except the part corresponding with the aperture of blade locating hole 13 is all covered by described ultra hard material layer 2, and is combined with matrix 1 fixing by the evagination bonding surface being provided with bulge-structure 11.Like this, ultra hard material layer 2 is attached to after on matrix 1, blade locating hole 13 can be offered easily at exposed carbide alloy core out, solve the drawback of the difficult machining hole existed around superhard material blade overall in material and prior art well, Set and Positioning time easy to use.
Ultra hard material layer 2 in the various embodiments described above can be any one in polycrystalline cubic boron nitride body, diamond polycrystal and ceramic materials.And the arc surface of outwardly convex in the various embodiments described above, is for the formation of the bonding surface of the matrix 1 of core, the stress between superhard material can be reduced in high pressure-temperature building-up process, improve the toughness of composite sheet, can also bonded area be increased simultaneously.In addition, in the various embodiments described above, bonding surface is the bonding surface being provided with equidistant equally distributed bulge-structure 11 and/or sunk structure 12, the effect increasing bonded area, improve adhesion can be played equally, and be provided with chamfering at the seamed edge of bulge-structure 11 and/or sunk structure 12, avoid occurring dead angle, the stress that can effectively reduce because structural mutation causes is concentrated.In order to avoid the crackle caused due to residual stress concentrations better, bulge-structure 11 in the various embodiments described above or the radial dimension of sunk structure 12 are all not more than 10mm, spacing between adjacent protrusion structure 11 and/or sunk structure 12 is also not more than 10mm, in design process, can the quantity of increase bulge-structure 11 as much as possible and/or sunk structure 12, reduce the size of bulge-structure 11 and/or sunk structure 12, realize increasing specific area, improve the effect of actual bond strength; And the spread pattern of bulge-structure 11 or sunk structure 12 with reference to the queueing discipline spread pattern of Figure 22, Figure 23, also can adopt irregular spread pattern.Further, the height of projection of evagination bonding surface is less than the half of the radius of matrix 1 corresponding side surface or the length of side of matrix 1 corresponding side surface, can avoid producing stress when HP-HT synthesize and concentrate.
When manufacturing above-mentioned Superhard composite materials, first process above-mentioned for being combined fixing bonding surface with ultra hard material layer 2 on each side of the matrix 1 for the manufacture of Superhard composite materials respectively, then the superhard material powder for the formation of ultra hard material layer 2 is looped around outside matrix 1, be placed in corresponding mould, and the superhard material powder part corresponding with each described bonding surface is interconnected; Finally, jointly sinter around good superhard material powder and matrix 1, formed in matrix 1 outside and be combined fixing ultra hard material layer 2 with matrix 1 by bonding surface, obtain Superhard composite materials.By controlling the consumption of superhard material powder, matrix 1 can be made to be covered by described ultra hard material layer 2 completely, being formed as the composite blade in embodiment one-embodiment four; Or make the surface on matrix 1 except the aperture of blade locating hole 13 all be covered by described ultra hard material layer 2, formed as the composite blade in embodiment five.
In the above-described embodiments, the bonding surface on each side of matrix 1 is the evagination bonding surface of outside projection in the arc-shaped, and bonding surface is provided with bulge-structure 11 and/or sunk structure 12.In other embodiments of the present utility model, bonding surface on each side of matrix 1 also can be plane or other forms of bonding surface, such as waveform bonding surface, and the shape of bonding surface outwardly convex also can be other shapes, such as, become dihedral projection, non-circular arc arc convex etc.In addition, bulge-structure 11 on bonding surface and/or sunk structure 12 also can save or be arranged to other shapes as required, such as hemispherical, regular polygon etc., and in other embodiments, the shape of Superhard composite materials also can be other shapes in ISO standard, also can be nonstandard blade type.Moreover in other embodiments, the ultra hard material layer 2 corresponding with each side of matrix 1 also can partly link together, and need not completely coated for the transition position of each for matrix 1 side.
Claims (6)
1. a Superhard composite materials, comprise matrix and ultra hard material layer, it is characterized in that: each side of described matrix all has for being combined fixing bonding surface with described ultra hard material layer, described ultra hard material layer is combined by the bonding surface on each side of described matrix and is fixed on matrix, and the part that described ultra hard material layer is combined on each described bonding surface is interconnected.
2. a kind of Superhard composite materials according to claim 1, is characterized in that: described bonding surface is the evagination bonding surface towards outer lug, is connected smoothly between the evagination bonding surface on each side of described matrix.
3. a kind of Superhard composite materials according to claim 2, is characterized in that: the height of projection of described evagination bonding surface is less than the radius of corresponding matrix corresponding side surface or is less than the half of the length of side of corresponding matrix corresponding side surface.
4. a kind of Superhard composite materials according to claim 1 or 2 or 3, is characterized in that: described bonding surface is the bonding surface being provided with bulge-structure and/or sunk structure, and the seamed edge of described bulge-structure or sunk structure is provided with chamfering.
5. a kind of Superhard composite materials according to claim 1 or 2 or 3, is characterized in that: the whole external surface of described matrix is bonding surface, and described matrix is covered by described ultra hard material layer completely.
6. a kind of Superhard composite materials according to claim 1 or 2 or 3, is characterized in that: described matrix is provided with the blade locating hole of through respective side, and the surface on described matrix except the aperture of blade locating hole is bonding surface.
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| CN201420431986.3U CN204098790U (en) | 2014-08-01 | 2014-08-01 | A kind of Superhard composite materials |
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| CN201420431986.3U CN204098790U (en) | 2014-08-01 | 2014-08-01 | A kind of Superhard composite materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153713A (en) * | 2014-08-01 | 2014-11-19 | 河南富耐克超硬材料股份有限公司 | Ultrahard material clad sheet and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104153713A (en) * | 2014-08-01 | 2014-11-19 | 河南富耐克超硬材料股份有限公司 | Ultrahard material clad sheet and manufacturing method thereof |
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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 |
Owner name: FUNIK ULTRAHARD MATERIALS CO., LTD. Free format text: FORMER NAME: HE NAN FUNIK ULTRAHARD MATERIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 16 Patentee after: Rich Nike superhard material limited company Address before: 450001 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 16 Patentee before: Henan Funik Ultrahard Material Co., Ltd. |