JPS648245A - Hard alloy - Google Patents
Hard alloyInfo
- Publication number
- JPS648245A JPS648245A JP16504987A JP16504987A JPS648245A JP S648245 A JPS648245 A JP S648245A JP 16504987 A JP16504987 A JP 16504987A JP 16504987 A JP16504987 A JP 16504987A JP S648245 A JPS648245 A JP S648245A
- Authority
- JP
- Japan
- Prior art keywords
- hard alloy
- balancedly
- corrosion resistance
- mechanical strength
- grain size
- 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.)
- Pending
Links
Abstract
PURPOSE:To provide mechanical strength, corrosion resistance, and polishing brightness characteristics well-balancedly at respectively high levels to a hard alloy to be obtained, by controlling the grain size of WC as a principal component and incorporating specific amounts of Ni and Cr. CONSTITUTION:A hard alloy containing, by weight, 8-35% Ni and 0.5-10% Cr and composed principally of WC of <=1mum grain size is prepared by a powder metallurgical method. By the above constitution, the hard alloy having mechanical strength, corrosion resistance, and polishing brightness characteristics well- balancedly at respectively high levels can be obtained. Accordingly, this alloy is suitable for watchband, watchcase, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16504987A JPS648245A (en) | 1987-06-30 | 1987-06-30 | Hard alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16504987A JPS648245A (en) | 1987-06-30 | 1987-06-30 | Hard alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648245A true JPS648245A (en) | 1989-01-12 |
Family
ID=15804863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16504987A Pending JPS648245A (en) | 1987-06-30 | 1987-06-30 | Hard alloy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648245A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01255642A (en) * | 1988-04-05 | 1989-10-12 | Tokyo Tungsten Co Ltd | Dot pin made of sintered hard alloy with corrosion resistance and sintered hard alloy material therefor |
JP2002086042A (en) * | 2000-09-13 | 2002-03-26 | Dijet Ind Co Ltd | Coating tool |
US6990736B2 (en) | 1997-09-08 | 2006-01-31 | Trent West | Methods for preparing jewelry articles comprising sintered tungsten carbide |
JPWO2022172729A1 (en) * | 2021-02-15 | 2022-08-18 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49106409A (en) * | 1973-02-16 | 1974-10-09 | ||
JPS5913045A (en) * | 1982-07-14 | 1984-01-23 | Seiko Epson Corp | External decorative parts for timepiece |
JPS61227147A (en) * | 1985-03-28 | 1986-10-09 | フリード・クルツプ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Hard alloy and its production |
-
1987
- 1987-06-30 JP JP16504987A patent/JPS648245A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49106409A (en) * | 1973-02-16 | 1974-10-09 | ||
JPS5913045A (en) * | 1982-07-14 | 1984-01-23 | Seiko Epson Corp | External decorative parts for timepiece |
JPS61227147A (en) * | 1985-03-28 | 1986-10-09 | フリード・クルツプ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Hard alloy and its production |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01255642A (en) * | 1988-04-05 | 1989-10-12 | Tokyo Tungsten Co Ltd | Dot pin made of sintered hard alloy with corrosion resistance and sintered hard alloy material therefor |
US6990736B2 (en) | 1997-09-08 | 2006-01-31 | Trent West | Methods for preparing jewelry articles comprising sintered tungsten carbide |
US6993842B2 (en) | 1997-09-08 | 2006-02-07 | Trent West | Methods and jewelry articles comprising sintered tungsten carbide |
US7032314B2 (en) * | 1997-09-08 | 2006-04-25 | Trent West | Methods of making tungsten carbide-based annular jewelry rings |
US7076972B2 (en) | 1997-09-08 | 2006-07-18 | Trent West | Tungsten carbide-based annular jewelry article |
US8061033B2 (en) | 1997-09-08 | 2011-11-22 | Trent West | Methods of making tungsten carbide-based annular jewelry rings |
US8584360B2 (en) | 1997-09-08 | 2013-11-19 | Trent West | Methods of making tungsten carbide-based annular jewelry rings |
JP2002086042A (en) * | 2000-09-13 | 2002-03-26 | Dijet Ind Co Ltd | Coating tool |
JPWO2022172729A1 (en) * | 2021-02-15 | 2022-08-18 |
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