CN203526230U - Polycrystalline-diamond wire-drawing mold blank - Google Patents
Polycrystalline-diamond wire-drawing mold blank Download PDFInfo
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- CN203526230U CN203526230U CN201320514859.5U CN201320514859U CN203526230U CN 203526230 U CN203526230 U CN 203526230U CN 201320514859 U CN201320514859 U CN 201320514859U CN 203526230 U CN203526230 U CN 203526230U
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- wire drawing
- drawing die
- polycrystalline diamond
- diamond wire
- polycrystalline
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Abstract
The utility model belongs to the field of manufacturing of super-hard materials and particularly relates to a polycrystalline-diamond wire-drawing mold blank. The polycrystalline-diamond wire-drawing mold blank comprises three layers of structures from outside to inside, wherein the three layers of structures are a hard alloy ring, a polycrystalline diamond and a core rod in sequence; and the core rod is made of high-temperature-resistant materials. The polycrystalline-diamond wire-drawing mold blank has the advantages that in punching, electric spark or laser does not need to be adopted, and the conventional hard-alloy twist bit or an ultrasonic wave only needs to be adopted for grinding and punching, so that the cracks on the hole wall of a wire-drawing mold caused by high temperature in punching is thoroughly avoided, the finished-product rate of products is greatly reduced, the processing time is shortened, the production efficiency of the products is improved, and further the production cost of the wire-drawing mold is effectively reduced.
Description
Technical field
The utility model belongs to superhard material and manufactures field, is specifically related to a kind of polycrystalline diamond wire drawing die blank.
Background technology
Polycrystalline diamond wire drawing die blank has high hardness, wearability, thermal conductivity, elastic modelling quantity and higher intensity, therefore the wire drawing die durability of manufacturing with this blank is high, wire rod precision that drawing goes out is high, fineness good, cost is low, making it to become and manufacture wire drawing die material par excellence, is that traditional sintered carbide wire drawing die is incomparable.Polycrystalline diamond wire drawing die blank has two kinds with or without carbide ring; with the wire drawing die blank of carbide ring due to carbide ring to its around polycrystalline diamond produced banding to internal pressure stress; the outside tensile stress that in the time of can effectively offsetting drawing wires, polycrystalline diamond is subject to; therefore intensity is high; larger external force in the time of can bearing drawing silk material, is more suitable for for the larger cogging wire drawing die of manufacturing dimension specification or transition wire drawing die.
When polycrystalline diamond wire drawing die blank being made to the cogging wire drawing die of drawing silk material, when transition wire drawing die or sizing wire drawing die, need to be in the central punch of polycrystalline diamond wire drawing die blank, extreme hardness due to polycrystalline diamond, wearability is fabulous, must take electric spark or laser to punch, during punching, local temperature can reach more than 3000 ℃, make local diamond carbonization form a hole being of the required size, but high temperature during punching also likely causes polycrystalline diamond wire drawing die hole wall to crack, wire drawing die is thoroughly scrapped, especially for the wire drawing die blank with carbide ring, because punching, size is larger, the punching time is long, power is high, the probability that occurs crackle is relatively also high, this is the problem demanding prompt solution existing in polycrystalline diamond wire drawing die manufacture process.
Summary of the invention
For the problems referred to above, the utility model improves the structure with carbide ring polycrystalline diamond wire drawing die blank, a kind of novel polycrystalline diamond wire drawing die blank is provided, during the punching of described wire drawing die blank without adopting electric spark or laser, only need to adopt conventional carbide twist drill bit or ultrasonic grinding punching, thereby thoroughly avoided the wire drawing die hole wall crackle causing because of punching high temperature, greatly improved the yield rate of product, shortened process time, improve the production efficiency of product, thereby effectively reduced the production cost of wire drawing die.
The utility model is achieved through the following technical solutions:
A polycrystalline diamond wire drawing die blank, comprises three-decker from outside to inside, and described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, and described plug is exotic material.
According to above-mentioned polycrystalline diamond wire drawing die blank, the material of described plug is refractory metal.
According to above-mentioned polycrystalline diamond wire drawing die blank, the material of described plug is any of tantalum, niobium, tungsten and molybdenum.
According to above-mentioned polycrystalline diamond wire drawing die blank, the material of described plug is refractory ceramics.
According to above-mentioned polycrystalline diamond wire drawing die blank, the material of described plug is any of aluminium oxide, zirconia, silica, carborundum and silicon nitride ceramics.
According to above-mentioned polycrystalline diamond wire drawing die blank, the diameter of described plug is less than the aperture, sizing area of polycrystalline diamond wire drawing die.
According to above-mentioned polycrystalline diamond wire drawing die blank, the height of described plug and polycrystalline diamond wire drawing die blank is suitable.
The manufacture method of polycrystalline diamond wire drawing die blank described in more than one any one, comprises the following steps:
(1) in carbide ring, put into diadust that the mass percent that mixes is 90 ~ 95% and 5 ~ 10% cobalt powder;
(2) at the middle part of described mixed-powder, insert plug, then they are put into high-temperature resistant container seal;
(3) described high-temperature resistant container is placed under high pressure-temperature condition after sintering, obtains polycrystalline diamond wire drawing die blank.
According to above-mentioned manufacture method, described high-temperature resistant container material is zirconium metal, tantalum metal, molybdenum or niobium metal.
According to above-mentioned manufacture method, described high pressure-temperature condition is 1350 ~ 1500 ℃ of pressure 6 ~ 8GPa, temperature; Described sintering time is 5 ~ 30 minutes.
positive beneficial effect of the present utility model:
In the utility model polycrystalline diamond wire drawing die blank when punching, is without adopting electric spark or laser, only need to adopt conventional carbide twist drill bit or ultrasonic grinding punching, thereby thoroughly avoided the wire drawing die hole wall crackle causing because of punching high temperature, greatly improved the yield rate of product, shortened process time, improve the production efficiency of product, thereby effectively reduced the production cost of wire drawing die.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 cross-sectional view.
In figure
1for carbide ring,
2for polycrystalline diamond,
3for plug.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described, but the utility model is not limited to these embodiment.
embodiment 1
The present embodiment polycrystalline diamond wire drawing die blank comprises three-decker from outside to inside, and described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, and the material of described plug is tantalum.
The material of the present embodiment plug also can be selected any of the refractory metals such as niobium, tungsten and molybdenum.
The manufacture method of the present embodiment polycrystalline diamond wire drawing die blank, comprises the following steps:
(1) in carbide ring, put into diadust that the mass percent that mixes is 90 ~ 95% and 5 ~ 10% cobalt powder;
(2) at the middle part of described mixed-powder, insert plug, then they are put into high temperature resistant tantalum canister seal;
(3) described high-temperature resistant container is placed in to sintering under pressure 6 ~ 8GPa, 1350 ~ 1500 ℃ of conditions of temperature and, after 5 ~ 30 minutes, obtains polycrystalline diamond wire drawing die blank.
The present embodiment high-temperature resistant container material also can be zirconium metal, molybdenum or niobium metal.
The present embodiment polycrystalline diamond wire drawing die blank comprises three-decker from outside to inside, and described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, and the material of described plug is aluminium oxide ceramics.
The material of the present embodiment plug also can be selected any of the refractory ceramicses such as zirconia, silica, carborundum and silicon nitride.
The manufacture method of the present embodiment polycrystalline diamond wire drawing die blank is identical with embodiment 1.
The present embodiment high-temperature resistant container material also can be zirconium metal, molybdenum or niobium metal.
The present embodiment polycrystalline diamond wire drawing die blank comprises three-decker from outside to inside, described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, the material of described plug is aluminium oxide ceramics, diameter is less than the aperture, sizing area of polycrystalline diamond wire drawing die, and the height of plug and polycrystalline diamond wire drawing die blank is suitable.
The material of the present embodiment plug also can be selected any of the refractory ceramicses such as zirconia, silica, carborundum and silicon nitride.
The manufacture method of the present embodiment polycrystalline diamond wire drawing die blank is identical with embodiment 1.
The present embodiment high-temperature resistant container material also can be zirconium metal, molybdenum or niobium metal.
embodiment 4
The present embodiment polycrystalline diamond wire drawing die blank comprises three-decker from outside to inside, described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, the material of described plug is tantalum, diameter is less than the aperture, sizing area of polycrystalline diamond wire drawing die, and the height of plug and polycrystalline diamond wire drawing die blank is suitable.
The material of the present embodiment plug also can be selected any of the refractory metals such as niobium, tungsten and molybdenum.
The manufacture method of the present embodiment polycrystalline diamond wire drawing die blank is identical with embodiment 1.
The present embodiment high-temperature resistant container material also can be zirconium metal, molybdenum or niobium metal.
The utility model is not limited to the above-mentioned specific embodiment, also be not limited to the signal shape of polycrystalline diamond wire drawing die blank in figure, those skilled in the art also can make multiple variation accordingly, but any and the utility model are equal to or similarly change and all should be encompassed in the scope of the utility model claim.
Claims (5)
1. a polycrystalline diamond wire drawing die blank, comprises three-decker from outside to inside, it is characterized in that: described three-decker is followed successively by carbide ring, polycrystalline diamond and plug, and described plug is refractory metal or refractory ceramics.
2. polycrystalline diamond wire drawing die blank according to claim 1, is characterized in that: the material of described plug is any of tantalum, niobium, tungsten and molybdenum.
3. polycrystalline diamond wire drawing die blank according to claim 1, is characterized in that: the material of described plug is any of aluminium oxide, zirconia, silica, carborundum and silicon nitride ceramics.
4. polycrystalline diamond wire drawing die blank according to claim 1, is characterized in that: the diameter of described plug is less than the aperture, sizing area of polycrystalline diamond wire drawing die.
5. polycrystalline diamond wire drawing die blank according to claim 1, is characterized in that: the height of described plug and polycrystalline diamond wire drawing die blank is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514859.5U CN203526230U (en) | 2013-08-22 | 2013-08-22 | Polycrystalline-diamond wire-drawing mold blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514859.5U CN203526230U (en) | 2013-08-22 | 2013-08-22 | Polycrystalline-diamond wire-drawing mold blank |
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| Publication Number | Publication Date |
|---|---|
| CN203526230U true CN203526230U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320514859.5U Expired - Fee Related CN203526230U (en) | 2013-08-22 | 2013-08-22 | Polycrystalline-diamond wire-drawing mold blank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433313A (en) * | 2013-08-22 | 2013-12-11 | 郑州新亚复合超硬材料有限公司 | Polycrystalline diamond wire-drawing die blank and manufacturing method thereof |
-
2013
- 2013-08-22 CN CN201320514859.5U patent/CN203526230U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433313A (en) * | 2013-08-22 | 2013-12-11 | 郑州新亚复合超硬材料有限公司 | Polycrystalline diamond wire-drawing die blank and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |