JPS5717386A - Production of welded joint in hydraulic turbine casing - Google Patents
Production of welded joint in hydraulic turbine casingInfo
- Publication number
- JPS5717386A JPS5717386A JP9178080A JP9178080A JPS5717386A JP S5717386 A JPS5717386 A JP S5717386A JP 9178080 A JP9178080 A JP 9178080A JP 9178080 A JP9178080 A JP 9178080A JP S5717386 A JPS5717386 A JP S5717386A
- Authority
- JP
- Japan
- Prior art keywords
- base metals
- weld
- tensile strength
- affected zone
- heat affected
- 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
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To produce a titled joint which breaks at base metals without breaking at weld metal by using a material of which the tensile strength of deposited metal is lower by a specific rate than that of base metals for the base metals of which the hardness in weld heat affected zone is higher than that of blank material parts.
CONSTITUTION: A low alloy steel plate of about 60W70kg/mm2 tensile strength is desirable as a material of which the weld heat affected zone exhibits hardness higher than that of blank material parts despite the receipt of tempering effect accompanied with multilayer welding. In the case in which the heat affected zone has hardness higher than that of the blank material parts, the plastic restraining phenomenon occuring in weld metal during acting of the tensile force in the direction perpendicular to the weld line is accelerated effectively by the adjacency of the heat affected zone harder than the blank material parts of base metals to the weld metal. Hence, althrough this depends upon the tensile strength of the deposited metal as well, the joint will break at the base metals without breaking at the weld metal. However, the use of a welding material of which the tensile strength of deposited metal is ≥82% that of base metals and is smaller than that of base metals in the state that the reinforcement of weld is left is a condition.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9178080A JPS5717386A (en) | 1980-07-07 | 1980-07-07 | Production of welded joint in hydraulic turbine casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9178080A JPS5717386A (en) | 1980-07-07 | 1980-07-07 | Production of welded joint in hydraulic turbine casing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5717386A true JPS5717386A (en) | 1982-01-29 |
Family
ID=14036098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9178080A Pending JPS5717386A (en) | 1980-07-07 | 1980-07-07 | Production of welded joint in hydraulic turbine casing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5717386A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018176231A (en) * | 2017-04-14 | 2018-11-15 | 新日鐵住金株式会社 | Weld joint and method for manufacturing weld joint |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5436584A (en) * | 1977-08-26 | 1979-03-17 | Hitachi Ltd | Resin mold coil for electric insturument use |
JPS54133445A (en) * | 1978-04-07 | 1979-10-17 | Hitachi Ltd | Arc welding method for high tension steel |
-
1980
- 1980-07-07 JP JP9178080A patent/JPS5717386A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5436584A (en) * | 1977-08-26 | 1979-03-17 | Hitachi Ltd | Resin mold coil for electric insturument use |
JPS54133445A (en) * | 1978-04-07 | 1979-10-17 | Hitachi Ltd | Arc welding method for high tension steel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018176231A (en) * | 2017-04-14 | 2018-11-15 | 新日鐵住金株式会社 | Weld joint and method for manufacturing weld joint |
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