一、前言聚氨酯泡沫塑料是一种很好的保温材料。近年来在国内各油田的应用也越来越广泛。其生产工艺正在不断地改进和完善。本文简要介绍一下我们所采用的一种工艺,即聚乙烯板包复泡沫保温管道一次成型的工艺以及生产作业线的情况。这种工艺方法,我们简称为“塑料板焊接成型法”。 First, the preface Polyurethane foam is a good insulation material. In recent years, the application of various fields in China is also more and more widely. Its production process is constantly improving and perfecting. This article briefly describes a process we used, that is, polyethylene plate clad foam insulation molding process and a production line. This process method, we referred to as “plastic sheet welding method.”