简要介绍了3PE防腐生产的涂覆方式,重点对3PE涂覆工艺模具上置式结构特点进行了分析,指出了该方式在频繁换道中费工、 费时的缺点,针对该情况设计了一种使用不同工装搭配的快捷换道方法,在钢管直径<350 mm的情况下实现了快速调型换道.实际使用结果表明,该方法虽然会稍增加主材的消耗,但是快捷换道方法对于多规格、 小批量、 工期短的防腐生产效果显著,提高了换道效率、 增加了有效作业时间、 减少了能耗.%In this article, it briefly introduced the coating ways of 3PE anticorrosion production, analyzed the structure characteristics of mould inhead type 3PE coating technology, and pointed out the disadvantages of this technology such as labour consuming and time consuming in frequently changing lane. Aimed at this situation, a fast lane changing method was designed using different tooling collocation method, which realized quickly changing lane under condition of steel pipe diameter < 350 mm. The actual application results indicated that although the consumption of main material will be slightly increased by using this method, but the anticorrosion production effect of multiple specifications, small batch, and short time is remarkable, it improves the efficiency of lane changing, increases the effective operating time, and reduces the energy consumption.
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