closed-chamber fusion weld 闭室熔焊
fusion weld sealing machine [包装] 熔焊封口机
fusion weld 熔焊
weld-fusion line 焊缝熔合线
heat-fusion butt weld 热熔对接焊
The microstructure and fine structure of weld fusion zone for high strength fine grain steel were studied.
研究了高强度细晶粒碳素钢焊接接头熔合区附近的显微组织及精细结构。
The main region of invalidation of the weld joint between different steels is commonly in fusion zone during welding or serving.
异种钢焊接接头在焊接时或使用期间，发生失效的主要区域通常在熔合区。
The crystallizing morphology on the weld seam was equiaxed grains and dendrites and that on the fusion area were columnar crystals.
焊缝区组织主要为等轴晶和树枝柱状晶，熔合区组织主要为柱状晶。
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