CN101831565A - New process for preparing niobium-zirconium 10 alloy - Google Patents
New process for preparing niobium-zirconium 10 alloy Download PDFInfo
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- CN101831565A CN101831565A CN 201010174751 CN201010174751A CN101831565A CN 101831565 A CN101831565 A CN 101831565A CN 201010174751 CN201010174751 CN 201010174751 CN 201010174751 A CN201010174751 A CN 201010174751A CN 101831565 A CN101831565 A CN 101831565A
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Abstract
The invention aims at providing a new process for preparing niobium-zirconium 10 alloy, which is used for improving the compactness of the alloy. The new process comprises the steps of introducing saturated hydrogen for the alloy after alloying and dehydrogenizing and then carrying out isostatic pressing. The new process for preparing niobium-zirconium 10 alloy ensures alloy grain refinement and uniformity through hydrogenization and dehydrogenization after the alloying, and improves the compactness of the alloy.
Description
Technical field
The invention belongs to the preparation of metal material processing technical field, particularly rare metal alloy.
Background technology
Niobium-zirconium 10 alloy is to add the alloy that metal zirconium is formed in metal niobium.Add the plasticity and the processing characteristics that can improve the intensity of alloy behind the zirconium and not influence alloy in the niobium, zirconium can also improve the oxidation-resistance and the alkali resistant metallic corrosion performance of alloy.The Nb-1Zr alloy is to use the widest niobium alloy at most, is a kind of low strength niobium alloy, and processing and good welding performance are mainly used in space flight and aviation, atomic reactor, new type electro source sodium vapor lamp and other Application Areass.Through retrieval, Chinese patent application: CN98117560.0 discloses a kind of preparation method of zirconium-niobium alloy, the preparation process that is used for the non-ferrous metal binary alloy, comprise zirconium sponge is pressed into zirconium electrode that zirconium niobium combined electrode rod is made in niobium bar identical with zirconium electrode length that it will prepare and zirconium electrode welding; Carry out melting after again zirconium niobium combined electrode rod being welded into consumable electrode.Through using proof, the alloy grain refinement degree that this technology is made is poor, and density is not enough.
Summary of the invention
The object of the invention provides a kind of novel process for preparing niobium-zirconium 10 alloy, to improve the density of alloy.
Briefly, the novel process of preparation niobium-zirconium 10 alloy, it is to feed saturated hydrogen high-temperature dehydrogenation again to alloy after alloying, passes through isostatic pressing.
Specifically, the novel process of above-mentioned preparation niobium-zirconium 10 alloy, it is to implement according to following steps:
(1) the raw material melting is purified: metal niobium bar 90 weight parts and metal zirconium bar 10 weight parts are purified by electron beam melting respectively;
(2) alloying: will carry out alloying smelting through the metal niobium and the zirconium of purifying;
(3) hydrogenation powder process: will feed abundant saturated hydrogen through the raw material with alloying and carry out hydrogen treatment in vacuum oven, the pressure of hydrogen is not less than 2Pa, and hydrogenation temperature is 1800-2000 ℃;
(4) high-temperature dehydrogenation: after hydrotreated alloy is cooled to normal temperature, again alloy is carried out high-temperature dehydrogenation and handle, be 2200-2300 ℃ in temperature and kept 4-6 hour down;
(5) moulding: raw material isostatic pressing at normal temperatures after the dehydrogenation.
The present invention prepares the novel process of niobium-zirconium 10 alloy, handles by carrying out hydrogenation and dehydrogenation after the alloying, makes alloy grain refinement, evenly; Improved the density of alloy.
Embodiment
The present invention prepares the novel process of niobium-zirconium 10 alloy, and it is to implement according to following steps:
(1) the raw material melting is purified: metal niobium bar 90 weight parts and metal zirconium bar 10 weight parts are purified by electron beam melting respectively;
(2) alloying: will carry out alloying smelting through the metal niobium and the zirconium of purifying;
(3) hydrogenation powder process: will feed abundant saturated hydrogen through the raw material with alloying and carry out hydrogen treatment in vacuum oven, the pressure of hydrogen is not less than 2Pa, and hydrogenation temperature is 1800-2000 ℃;
(4) high-temperature dehydrogenation: after hydrotreated alloy is cooled to normal temperature, again alloy is carried out high-temperature dehydrogenation and handle, be 2200-2300 ℃ in temperature and kept 4-6 hour down;
(5) moulding: raw material isostatic pressing at normal temperatures after the dehydrogenation.
Process characteristic of the present invention is to carry out hydrogenation and dehydrogenation processing after alloying, and all the other purifications, moulding process are all identical with existing powder metallurgical technique, and its concrete steps are no longer described.
Claims (2)
1. the novel process of preparation niobium-zirconium 10 alloy is characterized in that feeding saturated hydrogen high-temperature dehydrogenation again to alloy after alloying, passes through isostatic pressing.
2. the novel process of preparation niobium-zirconium 10 alloy according to claim 1 is characterized in that implementing according to following steps:
(1) the raw material melting is purified: metal niobium bar 90 weight parts and metal zirconium bar 10 weight parts are purified by electron beam melting respectively;
(2) alloying: will carry out alloying smelting through the metal niobium and the zirconium of purifying;
(3) hydrogenation powder process: will feed abundant saturated hydrogen through the raw material with alloying and carry out hydrogen treatment in vacuum oven, the pressure of hydrogen is not less than 2Pa, and hydrogenation temperature is 1800-2000 ℃;
(4) high-temperature dehydrogenation: after hydrotreated alloy is cooled to normal temperature, again alloy is carried out high-temperature dehydrogenation and handle, be 2200-2300 ℃ in temperature and kept 4-6 hour down;
(5) moulding: raw material isostatic pressing at normal temperatures after the dehydrogenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010174751 CN101831565A (en) | 2010-05-17 | 2010-05-17 | New process for preparing niobium-zirconium 10 alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010174751 CN101831565A (en) | 2010-05-17 | 2010-05-17 | New process for preparing niobium-zirconium 10 alloy |
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| Publication Number | Publication Date |
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| CN101831565A true CN101831565A (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010174751 Pending CN101831565A (en) | 2010-05-17 | 2010-05-17 | New process for preparing niobium-zirconium 10 alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602838A (en) * | 2013-11-15 | 2014-02-26 | 宝鸡市众邦稀有金属材料有限公司 | Preparation method of niobium-zirconium 10 alloy |
| CN104561575A (en) * | 2014-12-17 | 2015-04-29 | 宝鸡天博金属材料有限公司 | Preparation method of niobium-zirconium 10 alloy tube |
| CN104646659A (en) * | 2013-11-22 | 2015-05-27 | 北京有色金属研究总院 | Method for preparing low-oxygen high-pure metal hafnium powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213008A (en) * | 1998-08-25 | 1999-04-07 | 西北有色金属研究院 | Method for preparing zirconium niobium alloy |
| JP2007107056A (en) * | 2005-10-13 | 2007-04-26 | Osaka Prefecture Univ | Method for producing metal powder essentially composed of nb or ta |
| CN101182602A (en) * | 2006-11-14 | 2008-05-21 | 宁夏东方钽业股份有限公司 | Tantalum and/or powder for powder metallurgy and method of producing the same |
| US20080229880A1 (en) * | 2007-03-23 | 2008-09-25 | Reading Alloys, Inc. | Production of high-purity tantalum flake powder |
-
2010
- 2010-05-17 CN CN 201010174751 patent/CN101831565A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213008A (en) * | 1998-08-25 | 1999-04-07 | 西北有色金属研究院 | Method for preparing zirconium niobium alloy |
| JP2007107056A (en) * | 2005-10-13 | 2007-04-26 | Osaka Prefecture Univ | Method for producing metal powder essentially composed of nb or ta |
| CN101182602A (en) * | 2006-11-14 | 2008-05-21 | 宁夏东方钽业股份有限公司 | Tantalum and/or powder for powder metallurgy and method of producing the same |
| US20080229880A1 (en) * | 2007-03-23 | 2008-09-25 | Reading Alloys, Inc. | Production of high-purity tantalum flake powder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602838A (en) * | 2013-11-15 | 2014-02-26 | 宝鸡市众邦稀有金属材料有限公司 | Preparation method of niobium-zirconium 10 alloy |
| CN104646659A (en) * | 2013-11-22 | 2015-05-27 | 北京有色金属研究总院 | Method for preparing low-oxygen high-pure metal hafnium powder |
| CN104646659B (en) * | 2013-11-22 | 2017-06-20 | 北京有色金属研究总院 | A kind of manufacture method of hypoxemia high pure metal hafnium powder |
| CN104561575A (en) * | 2014-12-17 | 2015-04-29 | 宝鸡天博金属材料有限公司 | Preparation method of niobium-zirconium 10 alloy tube |
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Application publication date: 20100915 |