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First layer or overlaying layer welding section of high Cr steel turbine rotor, cladding welding material for welding section, and method for manufacturing cladding welding section
First layer or overlaying layer welding section of high Cr steel turbine rotor, cladding welding material for welding section, and method for manufacturing cladding welding section
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机译:高Cr钢涡轮转子的第一层或覆盖层焊接部,用于该焊接部的包层焊接材料以及包层焊接部的制造方法
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摘要
The present invention relates to a multilayered cladding welding section in which the first layer of the cladding welding section to be formed on a bearings contact surface of a high Cr steel turbine rotor contains 0.05-0.2% C, 0.1-1.0% Si, 0.3-1.5% Mn, 4.0-7.7% Cr, and 0.5-1.5% Mo, the remainder being Fe and unavoidable impurities; a multilayered cladding welding section in which the overlaying layer welding section contains 0.05-0.2% C, 0.1-1.0% Si, 0.3-2.5% Mn, 1.0-4.0% Cr, and 0.5-1.5% Mo; a welding material therefor; and a method for manufacturing a multilayered cladding welding section.
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