发明名称 |
UN APARATO DE CALENTAMIENTO PARA ALIVIAR TENSIONES RESIDUALES EN UNA JUNTA SOLDADA ENTRE TUBERIAS PRINCIPAL Y DE RAMIFICACION. |
摘要 |
<p>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.</p> |
申请公布号 |
ES550417(D0) |
申请公布日期 |
1987.01.01 |
申请号 |
ES19850550417 |
申请日期 |
1985.12.26 |
申请人 |
DAIICHI KOSHUHA KOGYO KABUSHIKI KAISHA;ISHIKAWAKIMA-HARIMA JUKOGYO KABUSHIKI KAISHA |
发明人 |
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分类号 |
B23K31/00;C21D1/42;C21D9/08;C21D9/50;(IPC1-7):H05B6/10 |
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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