CN204094170U - A kind of Superhard composite materials and matrix thereof - Google Patents
A kind of Superhard composite materials and matrix thereof Download PDFInfo
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- CN204094170U CN204094170U CN201420431982.5U CN201420431982U CN204094170U CN 204094170 U CN204094170 U CN 204094170U CN 201420431982 U CN201420431982 U CN 201420431982U CN 204094170 U CN204094170 U CN 204094170U
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Abstract
The utility model relates to a kind of Superhard composite materials and matrix thereof.Wherein a kind of Superhard composite materials comprises matrix and ultra hard material layer, each side of matrix all has for being combined fixing faying face with ultra hard material layer, faying face is the faying face being provided with bulge-structure and/or sunk structure, ultra hard material layer is combined by the faying face on each side of matrix and is fixed on matrix, and the part that ultra hard material layer is combined on each faying face is interconnected.The bulge-structure on each side of matrix and each side and/or sunk structure 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 faying face 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 faying face 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 and matrix thereof.
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 material 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 material and carbide alloy sinter and form under high-temperature and high-pressure conditions, polycrystalline diamond, cubic boron nitride or ceramic material 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 material 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 material 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 faying face between early stage bi-material is planar structure, therefore undesirable in conjunction with effect, faying face 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 faying face cracking.
Utility model content
The purpose of this utility model is to provide a kind of Superhard composite materials that can effectively prevent the faying face between matrix and superhard material to ftracture, and meanwhile, the utility model additionally provides a kind of matrix of Superhard composite materials.
The technical scheme that in the utility model, a kind of Superhard composite materials 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 faying face with described ultra hard material layer, described faying face is the faying face being provided with bulge-structure and/or sunk structure, described ultra hard material layer is combined by the faying face 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 faying face is interconnected.
Described faying face is the evagination faying face towards outer lug, is connected smoothly between the evagination faying face on each side of described matrix.
The height of projection of described evagination faying face 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.
The whole outer surface of described matrix is faying face, 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 faying face.
The technical scheme that in the utility model, the matrix of Superhard composite materials adopts is: the matrix of Superhard composite materials, comprise for being combined fixing faying face with ultra hard material layer, each side of described matrix all has described faying face, described faying face is the faying face being provided with bulge-structure and/or sunk structure, and the seamed edge of described bulge-structure or sunk structure is provided with chamfering.
Described faying face is the evagination faying face towards outer lug, is connected smoothly between the evagination faying face on each side of described matrix.
The height of projection of described evagination faying face 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.
The whole outer surface of described matrix is faying face, and described matrix is covered by described ultra hard material layer completely.
The radial dimension of described bulge-structure or sunk structure is all not more than 10mm, and the spacing between adjacent protrusion structure and/or sunk structure is also not more than 10mm.
The utility model adopts technique scheme, each side of the matrix of Superhard composite materials all has for being combined fixing faying face with described ultra hard material layer, described faying face is the faying face being provided with bulge-structure and/or sunk structure, described ultra hard material layer is combined by the faying face on each side of described matrix and is fixed on matrix, the part that described ultra hard material layer is combined on each described faying face is interconnected, therefore, compared with prior art, the bulge-structure on each side of matrix and each side and/or sunk structure 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 faying face 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 faying face between matrix and superhard material to ftracture, formed and firmly combine.In addition, be provided with chamfering at the bulge-structure of matrix or the seamed edge of sunk structure and can avoid occurring dead angle, thus the stress effectively reduced because structural mutation causes is concentrated, and plays better crack resistence effect.
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 profile and the schematic shapes of sunk structure on the upper surface of matrix in Fig. 1 and lower surface; Also be the structural representation of the embodiment one of the matrix of Superhard composite materials in the utility model simultaneously;
Fig. 4 is the A '-A ' sectional view of Fig. 3;
Fig. 5 is the sectional view of the embodiment two of the matrix of a kind of Superhard composite materials in the utility model, is also the sectional view of the matrix in the embodiment two of Superhard composite materials in the utility model simultaneously;
Fig. 6 is B-B sectional view of Fig. 5;
Fig. 7 is the profile enlarged diagram of the faying face projection structure of matrix in Fig. 5;
Fig. 8 is the sectional view of the embodiment three of the matrix of a kind of Superhard composite materials in the utility model, is also the sectional view of the matrix in the embodiment three of Superhard composite materials in the utility model simultaneously;
Fig. 9 is C-C sectional view of Fig. 8;
Figure 10 is the faying face projection structure of matrix in Fig. 8 and the profile enlarged diagram of sunk structure;
Figure 11 is the sectional view of the embodiment four of the matrix of a kind of Superhard composite materials in the utility model, is also the sectional view of the matrix in the embodiment four of Superhard composite materials in the utility model simultaneously;
Figure 12 is D-D sectional view of Figure 11;
Figure 13 is the profile enlarged diagram of the faying face projection structure of matrix in Figure 11;
Figure 14 is the sectional view (bulge-structure and the sunk structure of matrix surface are not shown) of the embodiment five of a kind of Superhard composite materials in the utility model;
Figure 15 is E-E sectional view of Figure 14.
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. 4, 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 above having, lower surface and periphery three sides, upper surface, lower surface and periphery are the evagination faying face of outside projection in the arc-shaped, are connected smoothly between three; The intermediate sizes of evagination faying face on periphery on the axial direction of matrix 1 is greater than both sides size.The upper surface of matrix 1 and lower surface 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 lower surface, 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; The periphery of matrix 1 is provided with the sunk structure 12 that shape is truncated cone.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 faying face 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. 5 ~ Fig. 7, 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, lower surface and four lateral surfaces, and six sides are outside projection in the arc-shaped and the evagination faying face be connected smoothly each other.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 small end outwardly.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 faying face being provided with bulge-structure 11 with matrix 1.
In the utility model, embodiment three such as Fig. 8 ~ Figure 10 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, lower surface and four lateral surfaces, and six sides are outside projection in the arc-shaped and the evagination faying face 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 faying face 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 11 ~ Figure 13, 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, lower surface and three lateral surfaces, and five sides are outside projection in the arc-shaped and the evagination faying face 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 small end outwardly.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 faying face being provided with bulge-structure 11 with matrix 1.
The embodiment five of Superhard composite materials (bulge-structure and the sunk structure on matrix 1 surface are not shown) as Suo Shi Figure 14 ~ Figure 15 in the utility model, be with the difference of embodiment three: in the present embodiment, Finished blades is provided with the blade locating hole 13 of through upper surface and lower surface, during manufacture, by controlling the consumption for the formation of the superhard material powder of ultra hard material layer 2, the 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.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 material.And the arc surface of outwardly convex in the various embodiments described above, is for the formation of the faying face 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, faying face is the faying face being provided with equidistant equally distributed bulge-structure 11 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 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 can be regularly arranged form, also irregular spread pattern can be adopted.Further, the height of projection of evagination faying face 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 faying face 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 faying face 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 faying face, 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.
Matrix in the utility model in the embodiment of the matrix of Superhard composite materials and the various embodiments described above, concrete structure repeats no more herein.
In the above-described embodiments, the faying face on each side of matrix 1 is the evagination faying face of outside projection in the arc-shaped, and faying face is provided with bulge-structure 11 or sunk structure 12.In other embodiments of the present utility model, faying face on each side of matrix 1 also can be plane or other forms of faying face, such as waveform faying face, and the shape of faying face outwardly convex also can be other shapes, such as, become dihedral projection, non-circular arc arc convex etc.In addition, bulge-structure 11 on faying face and/or sunk structure 12 also can save or be arranged to other shapes as required, such as hemispherical, regular pentagon prism shape, regular hexagon prism shape 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 (10)
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 faying face with described ultra hard material layer, described faying face is the faying face being provided with bulge-structure and/or sunk structure, described ultra hard material layer is combined by the faying face 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 faying face is interconnected.
2. a kind of Superhard composite materials according to claim 1, is characterized in that: described faying face is the evagination faying face towards outer lug, is connected smoothly between the evagination faying face 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 faying face 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: the whole outer surface of described matrix is faying face, and described matrix is covered by described ultra hard material layer completely.
5. 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 faying face.
6. the matrix of Superhard composite materials, comprise for being combined fixing faying face with ultra hard material layer, it is characterized in that: each side of described matrix all has described faying face, described faying face is the faying face being provided with bulge-structure and/or sunk structure, and the seamed edge of described bulge-structure or sunk structure is provided with chamfering.
7. the matrix of Superhard composite materials according to claim 6, is characterized in that: described faying face is the evagination faying face towards outer lug, is connected smoothly between the evagination faying face on each side of described matrix.
8. the matrix of Superhard composite materials according to claim 7, is characterized in that: the height of projection of described evagination faying face 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.
9. the matrix of the Superhard composite materials according to claim 6 or 7 or 8, is characterized in that: the whole outer surface of described matrix is faying face, and described matrix is covered by described ultra hard material layer completely.
10. the matrix of the Superhard composite materials according to claim 6 or 7 or 8, is characterized in that: the radial dimension of described bulge-structure or sunk structure is all not more than 10mm, and the spacing between adjacent protrusion structure and/or sunk structure is also not more than 10mm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668598A (en) * | 2015-02-09 | 2015-06-03 | 华北水利水电大学 | Polycrystalline superhard cutting tool and preparation method thereof |
| CN107954717A (en) * | 2017-10-27 | 2018-04-24 | 浙江立泰复合材料股份有限公司 | A kind of regular hexagon boron carbide ceramics piece |
| CN107954716A (en) * | 2017-10-27 | 2018-04-24 | 浙江立泰复合材料股份有限公司 | A kind of boron carbide ceramics plate |
| CN107976115A (en) * | 2017-10-27 | 2018-05-01 | 浙江立泰复合材料股份有限公司 | A kind of boron carbide-titanium alloy composite armour |
-
2014
- 2014-08-01 CN CN201420431982.5U patent/CN204094170U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668598A (en) * | 2015-02-09 | 2015-06-03 | 华北水利水电大学 | Polycrystalline superhard cutting tool and preparation method thereof |
| CN107954717A (en) * | 2017-10-27 | 2018-04-24 | 浙江立泰复合材料股份有限公司 | A kind of regular hexagon boron carbide ceramics piece |
| CN107954716A (en) * | 2017-10-27 | 2018-04-24 | 浙江立泰复合材料股份有限公司 | A kind of boron carbide ceramics plate |
| CN107976115A (en) * | 2017-10-27 | 2018-05-01 | 浙江立泰复合材料股份有限公司 | A kind of boron carbide-titanium alloy composite armour |
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Legal Events
| Date | Code | Title | Description |
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| 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. |
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| 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. |