This article describes three extruder cleaning methods: 1.Resin Cleaning: Uses polyester or epoxy resin to clean new or used equipment, removing residual materials to prevent extrusion issues like reduced speed or color differences. 2.Disassembly and Cleaning: Involves adding washing material, stopping feeding, and disassembling the extruder to remove residual material and clean the screw and die head. 3.Fire Baking: A blowtorch is used to burn off plastic from the screw, leveraging the screw's heat to clean effectively.

Whether the venting screw leaks material is directly related to the extrusion process, plastic properties, and the design of the screw and vent. Therefore, when manufacturers use venting extruders for production and processing, they must have a detailed understanding of the processing technology, resin characteristics, and equipment performance to ensure that the venting extruder can operate normally and stably.

Kneading blocks are components installed on the extruder screw. They are used in combination of two or more to mix and disperse materials and improve the mixing effect of the extruder. If you want to achieve a good mixing effect, it is important to choose the right kneading block.

When the material moves forward along the screw, it experiences changes in temperature, pressure, viscosity, etc. This change is not the same throughout the entire length of the screw. According to the changing characteristics of the material, the screw can be divided into a feeding section, a compression section and a homoge0nization section.

How to select screw parameters for different raw materials? (1) PC (Polycarbonate) (2) PMMA (Organic Glass) (3) PA (Nylon) (4) PET (polyethylene terephthalate) (5) PVC (polyvinyl chloride).

how to clean the screw

How to solve the wear problem of the compression section or the melting section without pulling out the screw frequently?

what are the common problems of extruder?

1. Different product requirements, different screw combinations 2. How to increase production capacity 3. Product shrinkage hole problem 4. Screw cooling

1. What is the screw L/D ratio? 2. The advantage of increasing the L/D ratio 3. How to choose the L/D ratio?