JPS5641301A - Manufacture of sintered body of tungsten - Google Patents
Manufacture of sintered body of tungstenInfo
- Publication number
- JPS5641301A JPS5641301A JP11520179A JP11520179A JPS5641301A JP S5641301 A JPS5641301 A JP S5641301A JP 11520179 A JP11520179 A JP 11520179A JP 11520179 A JP11520179 A JP 11520179A JP S5641301 A JPS5641301 A JP S5641301A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- powder
- tungsten
- mold
- manufactured
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052721 tungsten Inorganic materials 0.000 title abstract 2
- 239000010937 tungsten Substances 0.000 title abstract 2
- 239000000843 powder Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To make it possible to sinter tungsten in a furnace at relatively low temp., by adjusting the particle size of raw material W powder and the true density of the mold in specific ranges respectively in manufacturing sintered body of W.
CONSTITUTION: W powder 0.5W2.0μm in particle size is manufactured by controlling the conditions for the reduction of WO3 to W. Content of about 0.01% C is preferable for deoxidation. After premolded, the W powder is made into a mold ≥9g/cm3 in true density by means of a hydraulic press etc., then it is sintered by flow type method at 1,700W1,900°C temp. using a tunnel electric furnace. Sintered body of W of 3,400°C m.p. is manufactured at relatively low temp.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54115201A JPS5834522B2 (en) | 1979-09-10 | 1979-09-10 | Method for manufacturing tungsten sintered body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54115201A JPS5834522B2 (en) | 1979-09-10 | 1979-09-10 | Method for manufacturing tungsten sintered body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5641301A true JPS5641301A (en) | 1981-04-18 |
JPS5834522B2 JPS5834522B2 (en) | 1983-07-27 |
Family
ID=14656852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54115201A Expired JPS5834522B2 (en) | 1979-09-10 | 1979-09-10 | Method for manufacturing tungsten sintered body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5834522B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140355178A1 (en) * | 2011-12-19 | 2014-12-04 | Showa Denko K.K. | Tungsten capacitor anode and process for production thereof |
-
1979
- 1979-09-10 JP JP54115201A patent/JPS5834522B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140355178A1 (en) * | 2011-12-19 | 2014-12-04 | Showa Denko K.K. | Tungsten capacitor anode and process for production thereof |
US9478360B2 (en) * | 2011-12-19 | 2016-10-25 | Show A Denko K.K. | Tungsten capacitor anode and process for production thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5834522B2 (en) | 1983-07-27 |
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