It is directly related to the production cost and production efficiency of products, and in turn puts forward technological requirements for the structural design of products and the selection of materials. The embedded plastic lined steel pipe with inner reinforcement adopts the mechanical drawing composite process of * to compress the inner plastic pipe by reducing the diameter of the metal pipe, so that the two materials produce * reasonable interference. In addition, the embedded effect of the patterned inner reinforcement on the outer surface of the plastic pipe designed by the inner surface of the welded pipe * and the physical and chemical modification before the compound of the plastic pipe make the embedded plastic lined steel pipe with inner reinforcement have the technical characteristics of no layering, no shrinkage and guaranteed long-term use. And won the national utility model in 2001. This process has high production efficiency, easy process control and high composite quality.
