CN201855844U - Mosaic diamond drawing die core blank - Google Patents
Mosaic diamond drawing die core blank Download PDFInfo
- Publication number
- CN201855844U CN201855844U CN2010202376007U CN201020237600U CN201855844U CN 201855844 U CN201855844 U CN 201855844U CN 2010202376007 U CN2010202376007 U CN 2010202376007U CN 201020237600 U CN201020237600 U CN 201020237600U CN 201855844 U CN201855844 U CN 201855844U
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- diamond
- core rod
- die core
- carbide alloy
- hard alloy
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Abstract
The utility model relates to a mosaic diamond drawing die core blank, which belongs to the technical field of moulds. Hard alloy is provided with an inner circular hole; the inner circular hole is a tapered hole; the external diameter of a diamond die core is a tapered outer circumference; the taper of the external diameter of the diamond die core is matched with that of a hard alloy hole; the hard alloy and the diamond die core are inlaid in manner of taper close fit; and the diamond die core is inlaid in the inner circular hole of the hard alloy. The utility model has the advantages that the outside dimension of a hard alloy ring is not limited and a larger diameter can be adopted, thereby fully ensuring the drawing strength of a drawing mould. Because the hard alloy ring can provide sufficient packing and tightening strength per se, hot-pressing bush fitting is not needed. The die core with a ring can be inlaid in a stainless steel jacket by adopting a direct interference inlay mode, thereby avoiding damage to the dire core because of heating so that the manufactured moulds have higher smoothness and longer service life.
Description
Technical field
The utility model relates to a kind of inserted diamond wire-drawing mold core blank, belongs to technical field of mold.
Background technology
At present, the manufacturing great majority of diamond wire-drawing mold core all are to adopt press, diamond dust is placed in the carbide ring, adopt HTHP to make the diamond dust sintering form polycrystalline diamond (PCD) together, polycrystalline diamond and carbide ring are closely linked.The way of this direct sintering exists a lot of shortcomings, at first is that technical difficulty is very big, and qualification rate is lower, and cost is high.Next is that the outside diameter of carbide alloy also is limited in less size, thereby makes it that enough big tightening force can not be provided owing to the restriction of pressurized function power and die size, generally also needs hot pressed sintering edge cover when being made into mould.This hot pressed sintering then is easy to destroy the stress equilibrium in the band core rod, and it is cracked that it is easy to.Even, cause diamond part graphitization, thereby reduce the service life of mould because sintering temperature is too high.
Also there are some companies to adopt the mode of PCD cylinder and carbide alloy ring set edge to make the band core rod, but its technical characterstic then is to increase an intermediate metal between carbide ring and diamond cylinder, to improve the tension force of mistake pine between the carbide ring that causes because of the machining accuracy deficiency and diamond cylinder or tension.This technology need heat diamond equally, thereby makes part diamond material by high-temperature damage.In addition, intermediate metal has also reduced carbide ring to adamantine tightening force, thereby has reduced the tension silk intensity of this band core rod.Therefore, this core rod does not obtain excellent popularization.
Summary of the invention
In view of the above problems, the purpose of this utility model is to provide a kind of inserted diamond wire-drawing mold core blank.
A kind of inserted diamond wire-drawing mold core blank, carbide alloy has interior circular hole, interior circular hole is the hole that tapering is arranged, the external diameter of diamond core rod is the excircle that tapering is arranged, the external diameter tapering of diamond core rod and the tapering in carbide alloy hole are complementary, carbide alloy and diamond core rod are that tapering closely cooperates and inlays, and the diamond core rod firmly is embedded in the interior circular hole of carbide alloy.
A kind of inserted diamond wire-drawing mold core blank, the outside is a carbide alloy, inner core is the diamond core rod, carbide alloy and diamond core rod are inlayed for the tapering close fit, the cylindrical tapering of diamond core rod is consistent with the female cone degree of carbide alloy, exert pressure by major diameter end face, the diamond core rod firmly is embedded in the interior circle of carbide alloy from the diamond core rod.
Advantage of the present utility model: cheap for manufacturing cost, can drop into equipment seldom, form powerful production capacity; The carbide ring outside dimension is not subjected to any restriction, can adopt bigger diameter, thereby makes the tension silk intensity of wire-drawing die obtain sufficient assurance.Because carbide ring itself can provide enough parcels and tighten up intensity, do not need to carry out again hot pressing edge cover, the mode that can adopt direct interference to inlay is embedded in the band core rod in the stainless steel outer sleeve, thereby avoided the damage of heating, made higher, the longer service life of mould fineness that manufactures core rod.Adamantine material is not limited to the PCD of cobalt bond, can also adopt silicon bond PCD, CVD diamond and single-crystal diamond.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute to improper qualification of the present utility model, wherein:
Fig. 1 is the structure chart of a kind of inserted diamond wire-drawing mold core blank of expression.
Fig. 2 is the diamond wire-drawing die structure chart that expression has inserted diamond wire-drawing mold core blank.
The specific embodiment
With reference to Fig. 1, Fig. 2 embodiment of the present utility model is described.
Embodiment 1: a kind of inserted diamond wire-drawing mold core blank, the outside is a carbide alloy 2, inner core is a diamond core rod (PCD, CVD diamond or single-crystal diamond) 1, carbide alloy 2 is inlayed for the tapering close fit with diamond core rod 1, the cylindrical tapering of diamond core rod 1 is consistent with the female cone degree height of carbide alloy 2, apply certain pressure by major part, diamond core rod 1 firmly is embedded in the interior circle of carbide alloy 2 from diamond core rod 1.2 in diamond core rod 1 and carbide alloy are very close to each other, also do not add any transition zone.Carbide alloy 2 is a high strength cemented carbide.
The outside dimension of carbide alloy 2 is not subjected to any restriction, can adopt bigger diameter, thereby makes the tension silk intensity of mould obtain sufficient assurance.Because carbide ring itself can provide enough parcels and tighten up intensity, do not need to carry out again hot pressing edge cover.
The mode that adopts direct interference to inlay is embedded in the band core rod in the stainless steel outer sleeve 3, thereby has avoided the damage of heating to core rod, makes higher, the longer service life of mould fineness that manufactures.The material of diamond core rod 1 is not limited to PCD, can also adopt CVD diamond and single-crystal diamond.
Diamond wire-drawing die is when powerful wire drawing, can be caused extremely strong extruding force to diamond (diamond core rod (PCD, CVD diamond or single-crystal diamond) 1) endoporus by the wire drawing line, if adamantine cylindrical does not have enough tightening forces and rigidity, then diamond can be because stressed and cracked.Carbide alloy outer shroud (carbide alloy 2) can provide the tightening force stronger than general metal powder metallurgy, therefore, have what is called " band core rod " that the carbide alloy outer shroud supports can tolerate stronger wire drawing intensity than band core rod not, the diamond of comparable size can draw the thicker tinsel of size.
Embodiment 2: a kind of inserted diamond wire-drawing mold core blank, carbide alloy 2 has interior circular hole, interior circular hole is the hole that tapering is arranged, the external diameter of diamond core rod (PCD, CVD diamond or single-crystal diamond) 1 is the excircle that tapering is arranged, the external diameter tapering of diamond core rod (PCD, CVD diamond or single-crystal diamond) 1 and the tapering in carbide alloy 2 holes are complementary, carbide alloy 2 is inlayed for tapering closely cooperates with diamond core rod 1, and diamond core rod 1 firmly is embedded in the interior circular hole of carbide alloy 2.
The cylindrical tapering that is diamond core rod 1 is consistent with the female cone degree height of carbide alloy 2.
A kind of wire-drawing die of inserted diamond wire-drawing mold core blank, diamond wire-drawing mold core interference are embedded in the stainless steel outer sleeve 3, do not need to adopt traditional powder hot-pressing sintering processing edge cover.
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (2)
1. inserted diamond wire-drawing mold core blank, it is characterized in that, carbide alloy has interior circular hole, interior circular hole is the hole that tapering is arranged, the external diameter of diamond core rod is the excircle that tapering is arranged, the external diameter tapering of diamond core rod and the tapering in carbide alloy hole are complementary, and carbide alloy and diamond core rod are that tapering closely cooperates and inlays, and the diamond core rod firmly is embedded in the interior circular hole of carbide alloy.
2. inserted diamond wire-drawing mold core blank, it is characterized in that, the outside is a carbide alloy, inner core is the diamond core rod, carbide alloy and diamond core rod are inlayed for the tapering close fit, the cylindrical tapering of diamond core rod is consistent with the female cone degree of carbide alloy, exerts pressure by the major diameter end face from the diamond core rod, the diamond core rod firmly is embedded in the interior circle of carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202376007U CN201855844U (en) | 2010-06-25 | 2010-06-25 | Mosaic diamond drawing die core blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202376007U CN201855844U (en) | 2010-06-25 | 2010-06-25 | Mosaic diamond drawing die core blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201855844U true CN201855844U (en) | 2011-06-08 |
Family
ID=44101663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202376007U Expired - Fee Related CN201855844U (en) | 2010-06-25 | 2010-06-25 | Mosaic diamond drawing die core blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201855844U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470381A (en) * | 2017-08-15 | 2017-12-15 | 宜昌给立金刚石工业有限公司 | The preparation method of artificial synthesized CVD single-crystal diamonds wire-drawing die |
| CN107497869A (en) * | 2017-08-25 | 2017-12-22 | 无锡金宸合环机械装备有限公司 | A kind of taper wire drawing die with seal |
| CN107597864A (en) * | 2017-08-25 | 2018-01-19 | 无锡金宸合环机械装备有限公司 | A kind of taper wire drawing die |
-
2010
- 2010-06-25 CN CN2010202376007U patent/CN201855844U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470381A (en) * | 2017-08-15 | 2017-12-15 | 宜昌给立金刚石工业有限公司 | The preparation method of artificial synthesized CVD single-crystal diamonds wire-drawing die |
| CN107470381B (en) * | 2017-08-15 | 2018-11-27 | 宜昌给立金刚石工业有限公司 | The preparation method of artificial synthesized CVD single-crystal diamond wire-drawing die |
| CN107497869A (en) * | 2017-08-25 | 2017-12-22 | 无锡金宸合环机械装备有限公司 | A kind of taper wire drawing die with seal |
| CN107597864A (en) * | 2017-08-25 | 2018-01-19 | 无锡金宸合环机械装备有限公司 | A kind of taper wire drawing die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110608 Termination date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |