JPS56167966A - Manufacture of valve - Google Patents
Manufacture of valveInfo
- Publication number
- JPS56167966A JPS56167966A JP6965980A JP6965980A JPS56167966A JP S56167966 A JPS56167966 A JP S56167966A JP 6965980 A JP6965980 A JP 6965980A JP 6965980 A JP6965980 A JP 6965980A JP S56167966 A JPS56167966 A JP S56167966A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- shielding parts
- converted
- parts
- shielding
- 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
Landscapes
- Lift Valve (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To prevent stress corrosion by making the cavitation erosion shielding member for the valves for a nuclear plant from martensite stainless containing a specific amount of chrome and thermally processing the member and forming a prescribed structure.
CONSTITUTION: A valve is manufactured, of which the valve seat 2 and the valve piece 3 are constituted of the valve substrate 2b and 3b formed of austenite stainless steel and the cavitation erosion shielding parts 2b and 3b which are connected onto the sheet part surface 2A and the dise part 3A surface of the valve substrate 2b and 3b and made of martenisite stainless steel containing chrome above 15wt%. After the shielding parts 2a and 3b are joined onto the surfaces of the sheet part 2A and the disc part 3A, the shielding parts 2a and 3a are heated at 1,000W1,100°C, and the heat influenced part of the valve substrate 2b and 3b and the shielding parts 2a and 3a are converted into austenite structure substantially, then chilled by air or oil, and heat influenced parts of the valve substrate 2b and 3b are converted into austenite structure, and the shielding parts 2a and 3a are converted into martensite structure substantially.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6965980A JPS56167966A (en) | 1980-05-27 | 1980-05-27 | Manufacture of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6965980A JPS56167966A (en) | 1980-05-27 | 1980-05-27 | Manufacture of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56167966A true JPS56167966A (en) | 1981-12-23 |
Family
ID=13409174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6965980A Pending JPS56167966A (en) | 1980-05-27 | 1980-05-27 | Manufacture of valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56167966A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081817A (en) * | 1999-09-16 | 2001-03-27 | Kitagawa Tekkosho:Kk | Underground-type single-hole fire hydrant |
| JP2009293794A (en) * | 2008-06-05 | 2009-12-17 | Jokwang Ili Co Ltd | Cryogenic valve |
| JP6793866B1 (en) * | 2020-06-17 | 2020-12-02 | 株式会社クボタ | Gas valve and propane gas flow control method |
-
1980
- 1980-05-27 JP JP6965980A patent/JPS56167966A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081817A (en) * | 1999-09-16 | 2001-03-27 | Kitagawa Tekkosho:Kk | Underground-type single-hole fire hydrant |
| JP2009293794A (en) * | 2008-06-05 | 2009-12-17 | Jokwang Ili Co Ltd | Cryogenic valve |
| KR100978061B1 (en) * | 2008-06-05 | 2010-08-25 | 조광아이엘아이주식회사 | A Cryogenic Valve |
| JP6793866B1 (en) * | 2020-06-17 | 2020-12-02 | 株式会社クボタ | Gas valve and propane gas flow control method |
| WO2021256002A1 (en) * | 2020-06-17 | 2021-12-23 | 株式会社クボタ | Gas valve and method for controlling flow rate of propane gas |
| US11686395B2 (en) | 2020-06-17 | 2023-06-27 | Kubota Corporation | Gas valve and flow rate control method for propane gas |
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