Pvc tube drawing, a talent. Explain the whole process, single screw and twin screw. I don't understand. . .

In China, the multi-purpose cone-shaped double main engine is used to manufacture PVC rigid pipes. The whole production process is feeding, extrusion, mold, vacuum setting water tank, tractor, cutting machine, turning machine and so on. If the diameter of the large pipe is larger than 200, it is usually necessary to add a spray water tank behind the vacuum water tank for cooling.

Single screw is mostly used to make PVC hoses, such as PVC transparent hoses, PVC snakeskin tubes and PVC water bags. These processes include feeding, single screw extrusion, die, cooling tank, tractor, cutting machine, winding machine and so on. To make PVC snakeskin tube, you need two single-screw hosts, two sinks and a loom. I hope it helps you.