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白山水电站1~#机(300MW)蜗壳采用日本SPV—50kgf/mm~2钢板。为保证该钢板的焊接质量,进行了必要的模拟试验和理论分析,并采取了焊前预热、后热等措施。
Baishan Hydropower Station 1 ~ # (300MW) volute Japan SPV-50kgf / mm ~ 2 steel. In order to ensure the welding quality of the steel plate, the necessary simulation test and theoretical analysis were carried out, and measures such as preheating and post-heating before welding were taken.