JPS56166379A - Method for preventing corrosion cracking - Google Patents
Method for preventing corrosion crackingInfo
- Publication number
- JPS56166379A JPS56166379A JP6962180A JP6962180A JPS56166379A JP S56166379 A JPS56166379 A JP S56166379A JP 6962180 A JP6962180 A JP 6962180A JP 6962180 A JP6962180 A JP 6962180A JP S56166379 A JPS56166379 A JP S56166379A
- Authority
- JP
- Japan
- Prior art keywords
- cover plates
- gaseous
- inert gas
- corrosion cracking
- spaces
- 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
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
PURPOSE: To prevent corrosion cracking owing to the water flow in runners having cover plates by forming the spaces between the runner base bodies and the cover plates into tightly closed structure, and sealing an inert gas therein.
CONSTITUTION: The spaces constituted by cover plates 1 and runner base bodies 2 are filled with an inert gas substance such as gaseous N2 or gaseous CO2 and the sealing pressure is kept at around 1kg/cm2, whereby the breakdown phenomena by corrosion or erosion owing to flowing water are prevented. According to this method, there is an advantage of permitting early nondestructive discovery of cracking, if any, by measuring pressure drop.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6962180A JPS56166379A (en) | 1980-05-27 | 1980-05-27 | Method for preventing corrosion cracking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6962180A JPS56166379A (en) | 1980-05-27 | 1980-05-27 | Method for preventing corrosion cracking |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56166379A true JPS56166379A (en) | 1981-12-21 |
Family
ID=13408120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6962180A Pending JPS56166379A (en) | 1980-05-27 | 1980-05-27 | Method for preventing corrosion cracking |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56166379A (en) |
-
1980
- 1980-05-27 JP JP6962180A patent/JPS56166379A/en active Pending
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