CN1006044B - Techniaue of drawing die insert welding with natural diamond - Google Patents
Techniaue of drawing die insert welding with natural diamond Download PDFInfo
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- CN1006044B CN1006044B CN86108742.9A CN86108742A CN1006044B CN 1006044 B CN1006044 B CN 1006044B CN 86108742 A CN86108742 A CN 86108742A CN 1006044 B CN1006044 B CN 1006044B
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- natural diamond
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Abstract
The present invention relates to a technology for welding a wire drawing die of natural diamond. Main powder which is composed of metal powder such as nickel (Ni), wolfram (W), copper (Cu), stannum (Sn), plumbum (Pb), cobalt (Co), ferrophosphorus (P and Fe), etc., and top powder which is composed of metal powder such as nickel (Ni), titanium (Ti), wolfram (W), copper (Cu), stannum (Sn), cobalt (Co), plumbum (Pb), etc. are prepressed into a die column, and the die column is welded to natural diamond and a chromium-nickel stainless steel die sleeve to manufacture a novel natural diamond wire drawing die. The present invention has the advantages of simple technology, easy operation, high quality of the manufactured wire drawing die, and long service life. If the wire drawing die is popularized and utilized in production, a large amount of natural diamond and money can be saved.
Description
What the present invention relates to is a kind of natural diamond wire drawing die and manufacture method thereof.Belong to metal die and manufacture method thereof, particularly belong to the natural diamond mould and the manufacture method thereof that are used for metal stock is drawn into by the diamond hole silk.
The natural diamond wire drawing die is the mould that metal stock is drawn into a material by means of the hole of diamond.Natural diamond among the die sleeve of wire drawing die whether fixing strong be the key of wire drawing die quality quality, service life length.The present both at home and abroad diamond fixing means of natural diamond wire drawing die commonly used has brass to inlay method, powder metallurgy inlays method, casting etc.Their essence all is that machinery inlays, i.e. the effect of expanding with heat and contract with cold by metal fixes diamond in the die sleeve of wire drawing die.United States Patent (USP) us4442734 discloses a kind of manufacture method of wire drawing die.This wire drawing die has a die sleeve, side at this die sleeve has a cavity, in the centre of this bottom surface, chamber one natural diamond is housed, other position of bottom surface has once the top of hot pressing powder mould shell of column, this section top has a cylindrical metal plug that is complementary with cavity, the centre of its metal closures, promptly with in the groove of the metal closures at the corresponding position of diamond the main body powder mould shell of column of a hot pressing is arranged, clinkering is an integral body after natural diamond and two powder mould shell of columns, die sleeve and the hot pressing of cylindrical metal plug.This article also discloses the component and the proportioning of metal dust.No weldbonding effect between diamond in this natural diamond wire drawing die and the mould post; No welding-on effect between mould post and the die sleeve still belongs to machinery basically and inlays.So of poor quality, the Yi Songtao of this mould, service life is low.In addition, complex manufacturing.
The object of the present invention is to provide a kind of mould post that gives system with metal dust, make its top powder mould shell of column and natural diamond weldbonding together, main body powder mould shell of column and chromium nickel stainless steel die sleeve welding-on are together, diamond is not loosening during work, and mould post and die sleeve be the natural diamond wire drawing die and the manufacture method thereof of loose cover not.
Technical scheme of the present invention provides a kind of natural diamond wire drawing die, this wire drawing die has die sleeve, die sleeve one side has a cavity, one natural diamond is housed on the centre of this cavity bottom surface, the top powder mould shell of column that on other position of bottom surface, has the pressure of giving, the main body powder mould shell of column that on this top powder mould shell of column, has the pressure of giving.Special character of the present invention is that die sleeve is to be made by chromium nickel stainless steel, and shape, the size of its cavity shapes, size and mould post cross section are complementary; Main body powder mould shell of column and top powder mould shell of column component and percentage by weight are:
Main body powder mould shell of column: tungsten (W) 10～20%, copper (Cu) 11～18%, tin (Sn) 8～10%, cobalt (Co) 3～4%, plumbous (Pb) 6～7%, ferrophosphorus (P-Fe) 2～5%, surplus is a nickel; Top powder mould shell of column: nickel (Ni) 1～3%, titanium (Ti) 10～20%, tungsten (W) 20～30%, tin (Sn) 6～8%, cobalt (Co) 1～3%, plumbous (Pb) 1～6%, surplus is a copper;
The granularity of various metal dusts is 200 orders～300 orders, and its purity is more than 99.5%;
Nickel in the metal dust (Ni), cobalt (Co), copper (Cu) are handled through reduction.
Mould shell of column profile among the present invention can be cylinder or have the above polygon cylinder in three limits at least.
Manufacture method of the present invention has following steps: give mixed metal powder, add be pressed into the mould post, put natural diamond, the mould post is in the die sleeve cavity, the heating pressurization, special character of the present invention is, when the mould column temperature reaches 890 ° ± 20 ℃, give the pressurization of mould post, up to the die sleeve end face, the hot pressing overall process is 20～60 seconds.
The more detailed process of the inventive method is, the raw material of main body powder mould shell of column and top powder mould shell of column is evenly mixed separately, according to the size of wanting the molding post, weigh up the weight separately of the raw material of needed main body powder mould shell of column and top powder mould shell of column, the weight ratio of main body powder mould shell of column raw material and top powder mould shell of column raw material is in 12～4 scope.Earlier the raw material of main body powder mould shell of column is packed into and give in the punching block of molding post, again the raw material of top powder mould shell of column is poured into, be pressed into the mould post adding then.In cavity, give the position that fixes natural diamond earlier with adhering method, then the mould shell of column that is made of the top powder is placed cavity facing to natural diamond, the mould post will exceed the die sleeve plane at least more than the 1mm, give die sleeve, the heating of mould post with the medium-high frequency induction furnace, when the mould column temperature reaches 890 ° ± 20 ℃, give the pressurization of mould post, up to mould styletable face and die sleeve end face.The hot pressing overall process is 20～60 seconds.
Contain titanium elements in the powdered metallurgical material of top, produce chemical reaction with diamond surface in the pressure process of heating, form titanium carbide layer, weldbonding is together securely for the top powder section that this titanium carbide layer just makes natural diamond and mould post.Diffusion owing to nickle atom between same main body powdered metallurgical material and the chromium nickel stainless steel die sleeve makes it produce the welding effect, and the main body powdered metallurgical material of mould post and top powdered metallurgical material fuse into one in hot pressing, like this, natural diamond, mould post, chromium nickel stainless steel die sleeve are just fixed as a whole firmly.This new type natural dimaond die diamond at work is not loosening; The not loose cover of mould post and die sleeve; The frictional heat that produces on the natural diamond during drawing silk material is very fast scatters and disappears, and makes unlikely graphitization of diamond or scaling loss.
Therefore, the natural diamond wire drawing die life-span made from the present invention is long; The silk material that still can be used for another big specification of drawing after repeatedly reprocessing is used; Wire drawing die with the big specification of natural diamond raw material manufacturing of small dimension.
Technology of the present invention is simple, and is easy to operate, and without graphite mo(u)ld, heat time heating time is short, without protective atmosphere, thereby saves time, laborsaving, economical.
Inventive embodiment, as follows by means of description of drawings:
Fig. 1: mould post.
Fig. 2: the wire drawing die semi-finished product that natural diamond, mould post, die sleeve welding-on do not punch together as yet.
Select for use the main body flour gold to belong to powder and the top flour gold belongs to powder by following percentage by weight.The main body powder: tungsten (W) 15%, copper (Cu) 13.5%, tin (Sn) 8.2%, cobalt (Co) 2%, plumbous (Pb) 6.3%, ferrophosphorus (P-Fe) 1.0%, surplus is nickel (Ni); The top powder: nickel (Ni) 1.6%, titanium (Ti) 14.4%, tungsten (W) 22.2%, tin (Sn) 7%, cobalt (Co) 1.8%, plumbous (Pb) 3%, surplus is copper (Cu).The granularity of above-mentioned each metal dust is all in 200 orders～300 order scopes; Its purity is more than 99.5%; Wherein copper, cobalt, three kinds of metal dusts of nickel will be handled through reduction.Main body powder and top powder are evenly mixed separately, weigh up main body powder 3.2 grams, powder 0.4 gram in top is packed the main body powder into earlier and is given in the cylindrical punching block of molding post, the top powder is poured into, then pressurization 200 kilograms per centimeter on forcing press again
2, becoming cylindrical after mould post (6) demoulding, it is made up of main body powder mould shell of column (1) and top powder mould shell of column (2).
Be processed into die sleeve (3) with the OCr18Ni9 stainless steel, middle cavity (5) bottom that diamond (4) sticks with glue at die sleeve.Cavity diameter phi 10mm, degree of depth 4.5mm.Then the mould post is put into cavity by the mould shell of column that the top powder forms facing to natural diamond, at this moment the mould post exceeds the die sleeve end face at least more than the 1mm.Give die sleeve, 10 kilowatts of high-frequency electrical of the heating of mould post with induction heating furnace, 890 ℃ of of of when the mould column temperature reaches, give mould post plus-pressure 6 kilograms per centimeter2Up to mould post and die sleeve end face.The hot pressing overall process is 35 seconds.
Claims (9)
1, a kind of natural diamond wire drawing die, this wire drawing die has die sleeve (3), die sleeve one side has a cavity (5), one natural diamond (4) is housed on the centre of this cavity bottom surface, the top powder mould shell of column (2) that on other position of bottom surface, has the pressure of giving, the main body powder mould shell of column (1) that has the pressure of giving on this top powder mould shell of column is characterized in that:
(1) die sleeve is to be made by chromium nickel stainless steel, and its cavity shapes, size and mould post shape of cross section, size are complementary;
(2) main body powder mould shell of column and top powder mould shell of column component and percentage by weight are:
Main body powder mould shell of column: tungsten (W) 10～20%, copper (Cu) 11～18%, tin (Sn) 8～10%, cobalt (Co) 3～4%, plumbous (Pb) 6～7%; Ferrophosphorus (P-Fe) 2～5%, surplus are nickel;
Top powder mould shell of column: nickel (Ni) 1～3%, titanium (Ti) 10～20%, tungsten (W) 20～30%, tin (Sn) 6～8%, cobalt (Co) 1～3%, plumbous (Pb) 1～6%, surplus is a copper;
(3) granularity of various metal dusts is 200 orders～300 orders, and its purity is more than 99.5%;
(4) nickel in the metal dust (Ni), cobalt (Co), copper (Cu) are handled through reduction.
2, according to the described a kind of natural diamond wire drawing die of claim 1, the profile that it is characterized in that mould post (6) is cylinder or has the above polygon cylinder in three limits at least.
3, a kind of method of making the described natural diamond wire drawing die of claim 1, it has following steps: give mixed metal powder, add be pressed into the mould post, put natural diamond, the mould post is in the die sleeve cavity, the heating pressurization, it is characterized in that: when the mould column temperature reaches 890 ° ± 20 ℃, give the pressurization of mould post, up to the die sleeve end face, the hot pressing overall process is 20～60 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108742.9A CN1006044B (en) | 1986-12-25 | 1986-12-25 | Techniaue of drawing die insert welding with natural diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108742.9A CN1006044B (en) | 1986-12-25 | 1986-12-25 | Techniaue of drawing die insert welding with natural diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108742A CN86108742A (en) | 1988-07-06 |
| CN1006044B true CN1006044B (en) | 1989-12-13 |
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ID=4804039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86108742.9A Expired CN1006044B (en) | 1986-12-25 | 1986-12-25 | Techniaue of drawing die insert welding with natural diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006044B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2295591T3 (en) * | 2002-05-31 | 2008-04-16 | Sumitomo Electric Industries, Ltd. | MATERIALS FOR DIAMOND COMPACT MOLD AND DIAMOND COMPACT MOLD. |
| CN101683691B (en) * | 2008-09-28 | 2011-04-13 | 张安 | Manufacturing process of premould of metal wire drawing mould |
| CN102703792A (en) * | 2012-05-16 | 2012-10-03 | 天长市天屹模具科技发展有限公司 | Metal powder for manufacturing wire-drawing die |
| CN102671986A (en) * | 2012-05-16 | 2012-09-19 | 天长市天屹模具科技发展有限公司 | Manufacturing process of wire drawing die |
| CN102950456A (en) * | 2012-11-23 | 2013-03-06 | 袁建红 | Mode embedding system for wire drawing mode and method for embedding mold by utilizing same |
| CN104588652B (en) * | 2014-05-27 | 2018-03-27 | 天长市天屹模具科技发展有限公司 | A kind of vacuum secondary hot pressing manufacture craft of high intensity polycrystalline diamond wire drawing die |
| CN104588634B (en) * | 2014-05-27 | 2018-03-27 | 天长市天屹模具科技发展有限公司 | A kind of discharge plasma sintering manufacture craft of high rigidity polycrystalline diamond wire drawing die |
| CN104550961B (en) * | 2014-05-27 | 2018-03-27 | 天长市天屹模具科技发展有限公司 | A kind of hot pressed sintering manufacture craft of polycrystalline diamond wire drawing die |
| CN109365554B (en) * | 2018-12-14 | 2019-11-12 | 浙江金平拉丝模有限公司 | The production technology of diamond wire bus wire-drawing die |
-
1986
- 1986-12-25 CN CN86108742.9A patent/CN1006044B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86108742A (en) | 1988-07-06 |
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