CN206578292U - A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure - Google Patents
A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure Download PDFInfo
- Publication number
- CN206578292U CN206578292U CN201720275962.7U CN201720275962U CN206578292U CN 206578292 U CN206578292 U CN 206578292U CN 201720275962 U CN201720275962 U CN 201720275962U CN 206578292 U CN206578292 U CN 206578292U
- Authority
- CN
- China
- Prior art keywords
- granularity
- polycrystalline diamond
- wire drawing
- drawing die
- diadust
- 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.)
- Active
Links
Landscapes
- Metal Extraction Processes (AREA)
Abstract
A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure of the utility model, it is characterized in, the outer shroud fine-granularity diamond micro mist torus that the utility model includes the coarseness diadust cylinder in polycrystalline diamond centre and is mutually combined with it, the Gradient Features distribution that centre diadust granularity and adjacent diadust granularity are reduced successively in granularity, there is the product centre to be easier to be swept more, the characteristics of improving polycrystalline diamond blank production yield rate.
Description
Technical field
The utility model belongs to superhard material manufacture field, and in particular to a kind of glomerocryst with annular granular gradient structure
Dimaond die blank.
Background technology
Polycrystalline diamond wire drawing die blank is in high pressure high temperature by diadust and metallic cobalt
（5.5-7.5GPa with 1350-1550 DEG C）Under the conditions of sinter.Diadust particle is in cobalt bonding agent
Sweep more under, be firmly sintered together, form with definite shape size, the wire drawing die requirement that accords with all size
Polycrystalline diamond wire drawing die blank.The microstructure of this polycrystalline diamond is the diamond particles phase by being directly joined together
And be that manufacture drawing is coloured with high hardness, wearability, thermal conductivity and higher intensity in the cobalt phase composition of island shape
The wire drawing die of the wire rods such as metal, stainless steel, tungsten molybdenum wire par excellence material.Polycrystalline diamond wire drawing die is with respect to monocrystalline bulky grain Buddha's warrior attendant
For stone wire drawing die, it does not have cleavage surface, in isotropism, and durability is high, cheap；Relative harder alloy wire drawing die and
Speech, its hardness is high, and wearability is high, and the quantity of drawing silk is more, and not only precision is good but also highly polished for the silk of drawing.Therefore, now
The wire drawing industry overwhelming majority employs polycrystalline diamond wire drawing die.
It is well known that under the conditions of high pressure high temperature, diadust granularity is thicker, and the melting of metallic cobalt is swept
More process is easier, conversely, diadust granularity is thinner, and it is more difficult that more process is swept in the melting of metallic cobalt, especially
In the center of pressure decline.
Due to less than 5 μm（Containing 5 μm）It is good that the polycrystalline diamond blank of granularity pulls out silk material finish, current glomerocryst Buddha's warrior attendant
Increasingly favor less than 5 μm in stone wire drawing die market（Containing 5 μm）Product.The performance of polycrystalline diamond wire drawing die except with super-pressure
High-sintering process parameter is that pressure height, temperature height and time length have outside the Pass, another key factor, in whole superelevation
In super pressure-high temperature sintering process, centre the successively decreasing due to pressure of polycrystalline diamond blank, the centre in total
Pressure is minimum, temperature highest, and this has been resulted in relative to surrounding, and centre is more difficult to be swept more by metallic cobalt, particularly with granularity 5
Below μm（Containing 5 μm）Diadust, it more difficult to sweep more, in addition easily cause centre carbonization.
Utility model content
The purpose of this utility model is to provide a kind of tool rational in infrastructure, improving polycrystalline diamond blank production yield rate
There is the polycrystalline diamond wire drawing die blank of annular granular gradient structure.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure, includes coarseness diadust circle
Cylinder, and the outer shroud fine-granularity diamond micro mist torus being mutually combined with it, wherein, the coarseness is 1-2,1-3,2-4,4-
6th, any of 5-7,7-9,7-12,8-16,10-20,15-20,15-25,20-28,22-36,36-54,40-50,55-75
Granularity, the fine granularity be 0.5-1,1-2,1-3,2-4,4-6,5-7,7-9,7-12,8-16,10-20,15-20,15-25,
The granularity corresponding with foregoing granularity order, i.e. centre diadust granularity in 20-28,22-36,36-54,40-50
Meet the Gradient Features distribution that granularity is reduced successively with adjacent outward layer diadust granularity, the coarseness is phase with fine granularity
To concept, for example：Center granularity is 1-2, then adjacent outward layer granularity is 0.5-1；Center granularity is 5-7, then adjacent outward layer
Granularity is 4-6, and the polycrystalline diamond wire drawing die blank with annular granular gradient structure is at least containing two kinds of granularities
Diadust body, to meet gradient distributed architecture, the coarseness diadust cylinder and fine-granularity diamond micro mist
Torus is adjacent, and the granularity unit is μm.
Further, the outer layer of the fine-granularity diamond micro mist torus is the hard alloy layer being mutually combined with it.
The utility model has the polycrystalline diamond wire drawing die blank of annular granular gradient structure, by adjusting different grain size
Diadust put in order, realize diadust granular gradient structure, allow polycrystalline diamond blank centre more to hold
Easily sweep more, greatly improve the yield rate of polycrystalline diamond blank production, saved raw material, improved efficiency.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment technical scheme, below by the sign to being previously mentioned in embodiment
Parameter is showed with accompanying drawing, it should be apparent that, drawings discussed below is only some embodiments of the present utility model.
Fig. 1 is the structural representation of product described in the utility model embodiment 1,2；
Fig. 2 is product structure schematic diagram described in the utility model embodiment 1,2.
Label declaration：1- coarseness diadust cylinders；2- fine-granularity diamond micro mist torus；3- hard alloy
Layer.
Embodiment
The utility model is described in further detail with reference to embodiment, following examples are to the utility model
Explanation and the utility model is not limited to following examples.Involved material or equipment such as nothing are especially said in each embodiment
It is bright, it is commercially available conventional material or equipment, involved detection method is unless otherwise instructed, then conventional method.
Embodiment 1：As shown in figure 1, a kind of polycrystalline diamond wire drawing die blank is 22-36 μm by granularity, a diameter of 7mm,
Highly it is 12mm diadust cylinder, and granularity is 20-28 μm, a diameter of 16mm is highly micro- for 12mm diamond
Powder torus is sintered under the conditions of high pressure high temperature and formed, and for the breakdown die of drawing wires, diamond grit therein is in
The heart successively decreases in gradient to adjacent peripheral.
Embodiment 2：As shown in figure 1, a kind of polycrystalline diamond wire drawing die blank is 8-16 μm μm by granularity, a diameter of 5mm,
Highly it is 8.5mm diadust cylinder, and granularity is 7-12 μm, a diameter of 13mm is highly micro- for 8.5mm diamond
Powder torus is sintered under the conditions of high pressure high temperature and formed, and for the excessive mould of drawing wires, diamond grit therein is in
The heart successively decreases in gradient to adjacent peripheral.
Embodiment 3：As shown in Fig. 2 a kind of polycrystalline diamond wire drawing die blank with hard alloy outer shroud is 36- by granularity
54 μm, a diameter of 7.6mm, highly the diadust cylinder for 11.6mm, and granularity are 22-36 μm, and a diameter of 13mm is high
Spend the diadust torus for 11.6mm, and a diameter of 24.13mm, highly for 11.6mm carbide ring in super-pressure
Sintering is formed under hot conditions, this to be used for the high-strength rigid of wire rod with the dimaond die blank that hard alloy outer shroud is supported
The breakdown die of line either extrusion die, diamond grit therein is successively decreased in gradient from center to adjacent peripheral.
Embodiment 4：As shown in Fig. 2 a kind of polycrystalline diamond wire drawing die blank with hard alloy outer shroud is 1-3 by granularity
μm, a diameter of 1.8mm, highly the diadust cylinder for 2.3mm, and granularity are 1-2 μm, and a diameter of 4.0mm is highly
2.3mm diadust torus, and a diameter of 8.12mm, highly for 2.3mm carbide ring in high pressure high temperature bar
Sintering is formed under part, and for precision and the high plug die of smoothness requirements of drawing wires, diamond grit therein is in
The heart successively decreases in gradient to adjacent peripheral.
There is the polycrystalline diamond wire drawing die blank of annular granular gradient structure described in embodiment 1 to 4, it is different by adjusting
The diadust of granularity puts in order, and realizes diadust granular gradient structure, allows polycrystalline diamond blank centre
It is easier to sweep more, greatly improves the yield rate of polycrystalline diamond blank production.
Furthermore, it is necessary to explanation, the equivalent or simple change that all principles according to described in the utility model inventional idea are done
Change, in the protection domain for being included in the utility model patent.The utility model person of ordinary skill in the field can be right
Described specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from this practicality
New structure surmounts scope defined in the claims, all should belong to protection domain of the present utility model.
Claims (2)
1. a kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure, it is characterised in that include coarseness gold
Hard rock micro mist cylinder, and the outer shroud fine-granularity diamond micro mist torus being mutually combined with it, wherein, the coarseness be 1-2,
1-3、2-4、4-6、5-7、7-9、7-12、8-16、10-20、15-20、15-25、20-28、22-36、36-54、40-50、55-75
Any of granularity, the fine granularity be 0.5-1,1-2,1-3,2-4,4-6,5-7,7-9,7-12,8-16,10-20,15-
20th, granularity corresponding with coarseness order difference in 15-25,20-28,22-36,36-54,40-50.
2. the polycrystalline diamond wire drawing die blank according to claim 1 with annular granular gradient structure, its feature exists
In the outer layer of the fine-granularity diamond micro mist torus is the hard alloy layer being mutually combined with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275962.7U CN206578292U (en) | 2017-03-21 | 2017-03-21 | A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275962.7U CN206578292U (en) | 2017-03-21 | 2017-03-21 | A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206578292U true CN206578292U (en) | 2017-10-24 |
Family
ID=60114836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720275962.7U Active CN206578292U (en) | 2017-03-21 | 2017-03-21 | A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206578292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102585A (en) * | 2019-05-29 | 2019-08-09 | 河南四方达超硬材料股份有限公司 | Multilayer polycrystalline diamond wire drawing die blank, preparation method thereof and manufactured die |
| CN115213413A (en) * | 2021-06-18 | 2022-10-21 | 河南四方达超硬材料股份有限公司 | Composite superhard part and production process thereof |
-
2017
- 2017-03-21 CN CN201720275962.7U patent/CN206578292U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102585A (en) * | 2019-05-29 | 2019-08-09 | 河南四方达超硬材料股份有限公司 | Multilayer polycrystalline diamond wire drawing die blank, preparation method thereof and manufactured die |
| CN110102585B (en) * | 2019-05-29 | 2024-02-09 | 河南四方达超硬材料股份有限公司 | Multilayer polycrystalline diamond wire drawing die blank, preparation method thereof and prepared die |
| CN115213413A (en) * | 2021-06-18 | 2022-10-21 | 河南四方达超硬材料股份有限公司 | Composite superhard part and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0224605B2 (en) | ||
| CN100595417C (en) | Method of producing polycrystal diamond complex sheet drill blank bits | |
| CN206578292U (en) | A kind of polycrystalline diamond wire drawing die blank with annular granular gradient structure | |
| CN104612591B (en) | A kind of diamond impregnated block body and preparation method thereof | |
| CN106180732B (en) | Diamond compact and production method | |
| CN104863513B (en) | Polycrystalline diamond compact and preparation method thereof | |
| CN104551038B (en) | A kind of superhard cutting blade with centre bore | |
| CN104879066B (en) | Diamond compact substrate preparation method and composite sheet matrix are used in probing | |
| CN105130482B (en) | A kind of Metal toughened ceramic matric composite for 3D printing | |
| GB2270493A (en) | Encapsulation of segmented diamond compact | |
| CN101511965B (en) | Intermediate product for use in the production of abrading or cutting tools | |
| WO2011029350A1 (en) | Polycrystalline diamond composite sheet substrate | |
| CN102720434B (en) | Polycrystal diamond hard alloy complex sheet matrix, composite sheet and preparation method thereof | |
| CN105723047A (en) | A rock removal body | |
| CN103624262B (en) | A kind of Heat-resistant polycrystalline diamond compact and preparation method thereof | |
| CN110449593B (en) | Steel-bonded hard alloy head for manufacturing coal cutting pick and preparation method thereof | |
| CN106164017A (en) | Composite sinter | |
| CN103949187A (en) | Coarse particle polycrystalline diamond synthesizing technology | |
| CN201693011U (en) | CVD diamond wire drawing mold core with composite structure | |
| CN104148653B (en) | Manufacturing method of diamond compacts | |
| CN204107469U (en) | Ultra-fine diamond synthesis heater element and Synthetic block thereof | |
| CN106111153A (en) | A kind of polycrystalline diamond synthesis catalyst and preparation method thereof | |
| CN206860634U (en) | A kind of powder metallurgy screw rod | |
| CN101856673A (en) | CVD diamond wire-drawing mold core with composite structure as well as manufacturing method and application | |
| CN106076324A (en) | A kind of Novel diamond synthesis catalyst and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |