Extrusion, also known as extrusion molding, is the use of extruder to heat the resin continuously through the mold out of the desired shape of the product, extrusion is sometimes used for thermosetting plastic molding. Extrusion is the advantage of extruding a variety of shapes of products, high production efficiency, can be automated continuous production.
Polyethylene for container special box side panels, cold box layer support, with good corrosion resistance, hardness and strength higher, better increase the container shock absorption and wear resistance.
PVC is mainly used for cold box door, the threshold plate, and the tape closely interlocked, play the role of sealing, with good corrosion resistance.