Preparation method of plastic particles for maintaining extrusion of orange or yellow materials without black points

Abstract

The invention relates to a preparation method of plastic particles for maintaining extrusion of orange or yellow materials without black points. The preparation method is used for a production technology of a PE (Poly Ethylene) gas pipe. The preparation method comprises the following steps of: adding a reagent composition into PE particles with the weight ratio of being 2:1, soaking for 24 hours, then drying at the temperature of 70-80 DEG C, and when the content of water is less than or equal to 300ppm, extruding for use. The preparation method has the advantages that the smoothness of a flow channel is maintained in the extruding process of the enhanced PE orange or yellow particles, no stoppage is caused and carbon deposition formed due to repeated heating is prevented.

Description

technical field [0001] The invention relates to processing problems in the field of plastic applications, in particular to a method for processing PE gas pipes. Background technique [0002] The KraussMaffei, Decomo, Fangli, and Barton brands of blue die extruders commonly used in the market are named because they pass through a sieve basket like a drying net during the extrusion process. It is a blue die head extruder. At present, the main special PE material for gas pipelines has a relatively high viscosity, and there is a certain degree of difficulty in processing and extruding. After the extrusion host runs for a period of time, there will be accumulation of material on the screen of the blue die head, and the accumulation of material will occur after continuous processing. After warming, the PE material is carbonized to form carbon deposits. During the production process, it is extruded together with the raw materials to form black spots on the surface of the pipe. The...

AI Technical Summary

Problems solved by technology

At present, the main special PE material for gas pipelines has a relatively high viscosity, and there is a certain degree of difficulty in processing and extruding. After the extrusion host runs for a period of time, there will be accumulation of material on the screen of the blue die head, and the accumulation of material will occur after continuous processing. After warming, the PE material is carbonized to form carbon deposits. During the production process, it is extruded together with the raw materials to form black spots on the surface of the pipe. The mechanical and physical properties of the produced products are affected. Low pass rate and low economic benefit