发明名称 |
VERMEBEHANDLINGSFORFARANDE FOR AVLEGSNANDE AV RESTSPENNINGAR I EN SVETSAD RORFOG |
摘要 |
A heating method and heating apparatus for uniformly or substantially uniformly heating a predetermined portion of main and branch pipes including a welded joint therebetween of a main-and-branch-pipe assembly, thereby relieving the residual stress in the welded joint between the main and branch pipes. The defects and problems encountered in the conventional residual-stress-relief treatment processes can be substantially overcome such as complication in winding fabrication at the branch pipe which results in bad control of temperature; a mock-up test being needed for fabrication of an inductor; and existence of a non-heated zone resulting in unbalance of the stresses so that the effects of the residual stress-relief treatment are reduced. |
申请公布号 |
SE454888(B) |
申请公布日期 |
1988.06.06 |
申请号 |
SE19850002645 |
申请日期 |
1985.05.29 |
申请人 |
DAIICHI KOSHUHA KOGYO KK;ISHIKAWAJIMA-HARIMA JUKOGYO KK |
发明人 |
1)T * INO;2)T * MAENOSONO;3)K * YOSHIDA;4)M * TERASAKI;5)T * KURIWAKI;6)T * KOGA;7)M * HIRADO |
分类号 |
B23K31/00;C21D1/42;C21D9/08;C21D9/50;(IPC1-7):C21D9/50 |
主分类号 |
B23K31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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