而热镀锌钢管也是限期使用。
文中着重介绍了新工艺采用微氧化还原法的原理生产热镀锌钢管的方法、机理、试验情况等。
Emphasis is laid on applying the principle of "Slight oxidation-reduction method" to production of hot dip galvanized steel pipes. The manufacturing method, mechanism and test results are introduced.
钢管应按设计要求采用热镀锌管。
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.
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.
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.
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