CN1201838A - W-Ni-Fe alloy of high density and production thereof - Google Patents
W-Ni-Fe alloy of high density and production thereof Download PDFInfo
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- CN1201838A CN1201838A CN 97108100 CN97108100A CN1201838A CN 1201838 A CN1201838 A CN 1201838A CN 97108100 CN97108100 CN 97108100 CN 97108100 A CN97108100 A CN 97108100A CN 1201838 A CN1201838 A CN 1201838A
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- tungsten
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Abstract
A high-specific-weight W-Ni-Fe alloy has the W content greater than or equal to 92.2 wt.%, and features that after proporioning raw materials and press shaping, the semi-finished product must be sintered in high-temp ceramic container containing magnesium oxide or zirconium oxide filler which has been treated at 1550 deg.C or higher, in order to avoid the pollution of oxygen or carbonate as impurities to the final product. Its density can reach 99.5% or more.
Description
The present invention relates to a kind of tungsten ferronickel high-density alloy, also relating to a kind of is the high-density alloy of main component with the tungsten ferronickel, relates to the processing method of making them simultaneously.
W-Ni-Fe alloy of high density is mainly used among high-quality precision and sophisticated technology field and the war industry.Their characteristics are to have extraordinary proportion and corresponding hardness, also have certain extendability and Young's modulus, lower thermal expansivity etc. simultaneously.
China has begun a large amount of exploration work aspect the development tungsten ferronickel high-density alloy since the sixties in this century; But so far, also do not find reliable and stable but uncomplicated manufacture craft, and the density of finished product is difficult to reach 〉=requirement of 99.5% theoretical density.
Purpose of the present invention provides practical W-Ni-Fe alloy of high density and manufacture craft, simple and feasible only under this technology, and, its physical and mechanical properties is met the requirements fully owing to can get rid of of the pollution of impurity such as oxygen and carbon fully to finished product.
A kind of tungsten of the present invention, nickel, iron high-density alloy, its each components contents is: tungsten 92.8%wt, nickel 5.5%wt, iron surplus.
Of the present invention a kind of be the high-density alloy of main component with tungsten, nickel, iron, its concrete component comprises: tungsten 92.2%wt, nickel 5%wt, iron 1.5%wt, Yu Weitong.
And make the method for above-mentioned two kinds of high-density alloys, successively experience all operations of batching, die mould and sintering, its feature: the work in-process behind the die mould are to be wrapped in through in the magnesium oxide of pyroprocessing more than 1550 ℃ or the zirconium white stopping composition and place the pyroceramic boat to carry out agglomerating, 1460～1480 ℃ of sintering temperatures, sintering time 60～120 minutes.
The used specifications of raw materials of the present invention is as follows: tungsten powder, purity＞99.88%, granularity≤4 μ m; Nickel powder, purity＞99.9%, granularity-325 order; Iron powder, purity＞99.5%, O
2+ C＜0.5%, C＜0.05% wherein, granularity-200 order; Copper powder, purity＞99.5%, granularity-200 order.
Adopt behind the mixing common powder metallurgy process to prepare work in-process in proportion above-mentioned raw materials, again by technology of the present invention to carrying out the finite time sintering under the fixed temperature, the ratio of the back finished product of the coming out of the stove 17.5～17.7g/cm that weighs
3, surface hardness reaches 28.5～30 ° (HRC), and the surface is straight is uniform canescence, has the necessary physical and mechanical properties of high-density alloy.
Claims (3)
1, a kind of tungsten, nickel, iron high-density alloy, its each components contents is: tungsten 92.8%wt, nickel 5.5%wt, iron surplus.
2, a kind of is the high-density alloy of main component with tungsten, nickel, iron, and its concrete component comprises: tungsten 92.2%wt, nickel 5%wt, iron 1.5%wt, Yu Weitong.
3, as the method for making of claim 1 and 2 described high-density alloys, successively experience all operations of batching, die mould and sintering, it is characterized in that: the work in-process behind the die mould are to be wrapped in through in the magnesium oxide of pyroprocessing more than 1550 ℃ or the zirconium white stopping composition and place the pyroceramic boat to carry out agglomerating, 1460～1480 ℃ of sintering temperatures, sintering time 60～120 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108100A CN1061698C (en) | 1997-06-10 | 1997-06-10 | W-Ni-Fe alloy of high density and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108100A CN1061698C (en) | 1997-06-10 | 1997-06-10 | W-Ni-Fe alloy of high density and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1201838A true CN1201838A (en) | 1998-12-16 |
| CN1061698C CN1061698C (en) | 2001-02-07 |
Family
ID=5170128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97108100A Expired - Fee Related CN1061698C (en) | 1997-06-10 | 1997-06-10 | W-Ni-Fe alloy of high density and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061698C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316672B (en) * | 2005-11-28 | 2011-06-22 | 联合材料公司 | Tungsten alloy particles, machining process with the same, and process for production thereof |
| CN102974823A (en) * | 2012-12-12 | 2013-03-20 | 广汉川冶新材料有限责任公司 | Sintering method of high gravity alloy |
| CN103978205A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Method for sintering green bodies of tungsten metal plates, molybdenum metal plates, tungsten alloy plates or molybdenum alloy plates |
| CN105441765A (en) * | 2016-01-05 | 2016-03-30 | 河南科技大学 | Missile heavy-gravity tungsten alloy and preparation method thereof |
| CN113426997A (en) * | 2021-06-11 | 2021-09-24 | 西安交通大学 | High-specific-gravity tungsten-nickel-iron alloy and laser additive manufacturing method thereof |
| CN115161534A (en) * | 2022-06-27 | 2022-10-11 | 深圳市天洲计时科技有限公司 | Metal forming grinding head and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2622209B1 (en) * | 1987-10-23 | 1990-01-26 | Cime Bocuze | HEAVY DUTIES OF TUNGSTENE-NICKEL-IRON WITH VERY HIGH MECHANICAL CHARACTERISTICS AND METHOD OF MANUFACTURING SAID ALLOYS |
-
1997
- 1997-06-10 CN CN97108100A patent/CN1061698C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316672B (en) * | 2005-11-28 | 2011-06-22 | 联合材料公司 | Tungsten alloy particles, machining process with the same, and process for production thereof |
| CN102974823A (en) * | 2012-12-12 | 2013-03-20 | 广汉川冶新材料有限责任公司 | Sintering method of high gravity alloy |
| CN102974823B (en) * | 2012-12-12 | 2015-05-20 | 广汉川冶新材料有限责任公司 | Sintering method of high gravity alloy |
| CN103978205A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Method for sintering green bodies of tungsten metal plates, molybdenum metal plates, tungsten alloy plates or molybdenum alloy plates |
| CN105441765A (en) * | 2016-01-05 | 2016-03-30 | 河南科技大学 | Missile heavy-gravity tungsten alloy and preparation method thereof |
| CN113426997A (en) * | 2021-06-11 | 2021-09-24 | 西安交通大学 | High-specific-gravity tungsten-nickel-iron alloy and laser additive manufacturing method thereof |
| CN115161534A (en) * | 2022-06-27 | 2022-10-11 | 深圳市天洲计时科技有限公司 | Metal forming grinding head and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1061698C (en) | 2001-02-07 |
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