... 渣孔（铸造） slag blow hole 熔渣箱 slag box 熔渣砖 slag brick ...
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The weld defects of incomplete fusion and burn through always occur when the electro-slag welding is used between the outside thin metal plate and the inner clapboard in a box-section member.
箱形截面构件薄壁板与内隔板电渣焊接时，易产生壁板烧穿和焊缝未熔合现象。
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