分析了引进的钢管热镀锌机组中螺旋的原始设计，从理论上证明其设计存在的缺陷。
Based on an analysis of the original design of the imported steel tube hot-dip galvanization line, theoretic verification of the design's drawbacks was made.
介绍采用PLC替代传统的继电器逻辑控制对钢管热镀锌的生产实现自动运行及故障处理。
The PLC is applicated in the steel tube galvanization process replace of traditional relay logic control to realize the automatic operation and fault treatment.
钢管应按设计要求采用热镀锌管。
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