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6.6 熔深控制方法为了防止烧穿或重大焊接缺陷(熔深不足)而进行熔深控制是一重要技术问题,从很早以前就开始研究。 (a) 检测焊缝背面的辐射光量的方法
6.6 Method of penetration control In order to prevent burn-through or major welding defects (lack of penetration), penetration control is an important technical issue and has been studied very long ago. (a) Method of measuring the amount of radiant light on the back of a weld