JPS5638445A - Molybdenum material prepared by powder metallurgy - Google Patents
Molybdenum material prepared by powder metallurgyInfo
- Publication number
- JPS5638445A JPS5638445A JP11409579A JP11409579A JPS5638445A JP S5638445 A JPS5638445 A JP S5638445A JP 11409579 A JP11409579 A JP 11409579A JP 11409579 A JP11409579 A JP 11409579A JP S5638445 A JPS5638445 A JP S5638445A
- Authority
- JP
- Japan
- Prior art keywords
- molybdenum
- powder
- molybdenum material
- less
- chromium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To provide the molybdenum material with an enhanced weldability by performing a powder metallurgical process in which the oxygen content and the sum of iron, nickel, chromium, etc. are specifically related in molybdenum power
CONSTITUTION: When the powder metallurgical process is used to prepare the molybdenum material, some contents in molybdenum powder are specified so that the sum of nickel, iron, and chromium, and other nonvolatile is less than 200ppm and oxygen less than 30ppm, or alternativele the former from 200W500ppm and oxygen less than 15ppm. Such a molybdenum powder is provided by repurification of ammonium paramolybdata with 99.99% purity to obtain 99.999% purity, which is subjected to repeated hydrogen reduction using a molybdenum boat to give particles of 3W5 μ. Such molybdenum powder is compression-formed in inert gas, and is sintered in hydrogen, etc. The process provides the molybdenum material having theoretical density and not producing pores by welding.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11409579A JPS5836662B2 (en) | 1979-09-07 | 1979-09-07 | Molybdenum material made by powder metallurgy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11409579A JPS5836662B2 (en) | 1979-09-07 | 1979-09-07 | Molybdenum material made by powder metallurgy |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5638445A true JPS5638445A (en) | 1981-04-13 |
JPS5836662B2 JPS5836662B2 (en) | 1983-08-10 |
Family
ID=14628975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11409579A Expired JPS5836662B2 (en) | 1979-09-07 | 1979-09-07 | Molybdenum material made by powder metallurgy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836662B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6276526A (en) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | Molybdenum plate |
JPS62224655A (en) * | 1986-03-27 | 1987-10-02 | Toshiba Corp | Molybdenum member |
JPH02163338A (en) * | 1988-12-19 | 1990-06-22 | Toshiba Corp | Heat-resistant molybdenum |
CN115323212A (en) * | 2022-09-23 | 2022-11-11 | 西安稀有金属材料研究院有限公司 | Preparation method of ultrafine molybdenum powder and molybdenum alloy with oxide nanoparticles distributed in crystal |
-
1979
- 1979-09-07 JP JP11409579A patent/JPS5836662B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6276526A (en) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | Molybdenum plate |
JPS62224655A (en) * | 1986-03-27 | 1987-10-02 | Toshiba Corp | Molybdenum member |
JPH02163338A (en) * | 1988-12-19 | 1990-06-22 | Toshiba Corp | Heat-resistant molybdenum |
CN115323212A (en) * | 2022-09-23 | 2022-11-11 | 西安稀有金属材料研究院有限公司 | Preparation method of ultrafine molybdenum powder and molybdenum alloy with oxide nanoparticles distributed in crystal |
Also Published As
Publication number | Publication date |
---|---|
JPS5836662B2 (en) | 1983-08-10 |
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