What should be paid attention to in the filament drawing process?-1

The filament drawing process is a commonly used process in the plastic process. The filament drawing materials we often say are produced by the drawing process of plastic raw materials, such as PP filament drawing material and PE filament drawing material. The filament drawing material is usually used in the plastic woven industry, such as plastic woven bags. , Ropes and other products, what issues should be paid attention to in the drawing process of plastic raw materials?

In the filament drawing process, the plastic raw materials are first put in a dryer for drying, and then the dried raw materials are put into the screw machine, pushed to the machine head by the screw, and then extruded in a viscous flow state. The membrane is heated and then stretched to increase the longitudinal strength of the flat wire, and finally the drawn wire is wound up. In short, the plastic raw materials in the wire drawing process mainly go through the processes of drying, feeding, extruding, cooling, cutting, stretching, and winding. Therefore, the points that need to be paid attention to in the wire drawing process should be fine-tuned according to these details.

1. Dryness of the raw materials

In the drawing and extrusion process, the drying of the raw materials is very important, especially the recycled materials and powder raw materials. Of course, the raw materials should not be over-dried. Once they are over-dried, they will directly affect the gloss of the flat yarn, and it will be accompanied by. There is a peculiar smell, the resin is easy to melt, and the knife is easy to jump. Of course, insufficient drying degree will also affect the surface gloss, transparency, etc. of the wire drawing product, causing broken wires, opaqueness, small pores, and edge curling.
2. Quality assurance of raw materials The quality of raw materials is the prerequisite for the drawing process. If the raw materials are mixed with more damp or expired materials, it is easy to block the filter during the processing and cause the confinement to be squeezed. Be sure to ensure the quality of the plastic before feeding.

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