JPS57168798A - Pipe welding method - Google Patents
Pipe welding methodInfo
- Publication number
- JPS57168798A JPS57168798A JP5337281A JP5337281A JPS57168798A JP S57168798 A JPS57168798 A JP S57168798A JP 5337281 A JP5337281 A JP 5337281A JP 5337281 A JP5337281 A JP 5337281A JP S57168798 A JPS57168798 A JP S57168798A
- Authority
- JP
- Japan
- Prior art keywords
- residual stress
- welding
- welded part
- stress
- bead
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
Abstract
PURPOSE:To eliminate the tensile residual stress on the inner surface of a welded part and to prevent the stress corrosion crack, by applying the beat welding along the outer circumference of a pipe and at both sides of the area near the welded part after connecting the pipes by welding. CONSTITUTION:The bead welding is applied at both sides of the welded part 2 of a pipe 1 to have the offset between the residual stress during the welding and that during the bead welding. Thus the high tensile residual stress is eliminated at the part 2, and as a result no residual stress exists at the part 2. While the tensile residual stress is caused on the inner surface of a bead welded part 3. This residual stress is, however, offset to the compression stress already existing. Thus the large tensile residual stress is never caused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5337281A JPS57168798A (en) | 1981-04-09 | 1981-04-09 | Pipe welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5337281A JPS57168798A (en) | 1981-04-09 | 1981-04-09 | Pipe welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57168798A true JPS57168798A (en) | 1982-10-18 |
Family
ID=12940976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5337281A Pending JPS57168798A (en) | 1981-04-09 | 1981-04-09 | Pipe welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57168798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019218914A (en) * | 2018-06-20 | 2019-12-26 | 本田技研工業株式会社 | Catalytic converter |
-
1981
- 1981-04-09 JP JP5337281A patent/JPS57168798A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019218914A (en) * | 2018-06-20 | 2019-12-26 | 本田技研工業株式会社 | Catalytic converter |
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