Analyses the effect of molten zone on the BF production, discusses the controlling of reasonable molten zone.
分析了高炉软熔带对高炉生产的影响，探讨了合理软熔带的控制。
Crack propagation conducts alternatively between the weld zone and the partially molten zone, and is not strictly to rupture at W/F boundary surface.
裂纹扩展在焊缝区和半熔化区之间交替进行，并非严格按W／F界面破断。
By strictly clearing up weld zone, improving welding material's purity, strengthening molten pool's shield and controlling energy input etc measures, weld zone's hot crack and blowhole were prevented.
采取严格清理焊接区、高焊材纯净度、强熔池保护及控制线能量等措施消除了蒙乃尔合金焊接中的气孔和热裂纹，保证了产品焊接质量。
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