发明名称 |
Method of submerged arc welding a thick steel plate with large heat input and submerged arc welding flux |
摘要 |
A method of submerged arc welding of thick steel plates with a large heat input and flux for submerged arc welding which comprises: forming a groove having a multi-angle shape which has at least two different angular inclination when a single side submerged arc welding for perfect penetration is conducted under a condition of an welding heat input of 100 to 1000 kJ/cm; using submerged arc welding flux SiO2: 5 to 28% by weight, MgO: 15 to 35% by weight, CaO: 5 to 15% by weight, CaF2: 2 to 20% by weight, Al2O3: 5 to 15% by weight, and TiO2: 2 to 10% by weight as the main components, and containing iron powder by 30% by weight or less and either or both of Si and Mn in the metallic form by 10% by weight, the submerged arc welding flux having a particle size distribution arranged such that the proportion of the particle size distribution arranged such that the proportion of the particle which have a size finer than 36 mesh is 20% by weight or less and the proportion of the particles which have a size 14 mesh or finer but 36 mesh or rougher is 60% by weight or more; and conducting the welding.
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申请公布号 |
US5004884(A) |
申请公布日期 |
1991.04.02 |
申请号 |
US19890454920 |
申请日期 |
1989.12.22 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
SAKAGUCHI, SHUICHI;YAMAGUCHI, TADAMASA;YAMASHITA, ITARU |
分类号 |
B23K9/18;B23K33/00;B23K35/36 |
主分类号 |
B23K9/18 |
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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