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Working principle of plastic extruder
Aug 16 , 2022
The plastic extruder generally melts the plastic powder at a high temperature in the heating section, and the melted plastic forms the required shape when it passes through the mold, and then completes the production of a product through subsequent mold accessories. Extrusion molding has high requirements on various control of equipment, including speed control, temperature control, etc. Engineers...
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Extruder screw material requirements
Aug 29 , 2022
In various plastic production lines, the extruder is the core machine, and the screw is the key component of the plastic extruder, so the material of the screw must have the characteristics of high temperature resistance, wear resistance, corrosion resistance, high strength, etc. It should also have the characteristics of good cutting performance, small residual stress after heat treatment, and sm...
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Problems and Treatment in the Production Process of PE Pipes
Mar 30 , 2023
With the continuous advancement of technology, PE pipe machine are widely used in all aspects of production and life due to their unique advantages, such as building water supply, construction drainage, buried gas transmission and distribution, gas pipelines, electrical and telecommunications protective casing, industrial pipes, agricultural pipes, etc. So, what problems may be encountered in the ...
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What is Plastic extrusion?
May 29 , 2023
Plastic extrusion is one of the most widely used manufacturing processes for plastic moulding as well as one of the most widespread manufacturing processes for thermoplastics. It is a method of forming a continuous profile with a constant cross-section by forcing a thermally melted polymer material through a head die under pressure by means of the extrusion of a screw or plunger. The extrusion pro...
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Co-Extrusion Technology for Plastics Materials
Jul 05 , 2023
As the applications of plastic extrusion continue to expand, the requirements for the extrusion solutions become increasingly complicated. Many products designs require multiple functions in a simplified structure. However, each polymer material has its own characteristics and no single of them has the properties that can meet all desired needs. Therefore, the co-extrusion technology is created. C...
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Problems and Solutions for the Production of PVC Transparent Sheet Extrusion
Jul 05 , 2023
PVC has a wide range of applications due to its stable chemical properties, corrosion resistance, and high heat resistance. According to the amount of plasticizer used, there are two types of PVC: flexible PVC and rigid PVC. Due to various factors, bubbles and yellowing of the sheet may occur during the PVC Sheet production process. There are causes and corresponding solutions. 1. Yellowing of the...
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Extrusion Technology Related Questions and Answers
Sep 13 , 2023
1. What are the processes involved in the plastic extrusion of products? Raw (mixed) material → charging → extrusion → shaping and cooling → hauling → cutting → inspection → packaging → storage and stacking. 2. What does a filter plate (porous plate) do? a) Establish the head pressure; b) Change the material in the head of the screw from spiral flow to axial flow along the filter hole. 3. What kin...
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Types of Plastic Extrusion Machine
Sep 13 , 2023
Plastic extrusion machine also called plastic extruder. There are several different types of plastic extruder, including single screw extruder, conical twin screw extruder and parallel twin screw extruder. Different extruders have different features, and applied in different production lines. Conical twin screw extruder is usually used for extruding PVC powder, PVC wood powder, or PE wood pallets....
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Plastic Pipe Extrusion Line Maintenance Recommendations
Sep 13 , 2023
1、 Extruder If replacing new raw material, please make sure the current of the main machine reaches 60%-70% of the rated current, so that the raw material can be fully plasticized. During the process, please use the vacuum pump reasonably, the host current reaches 60% or more you can use the vacuum pump. You can observe the plasticizing condition of the material through the vacuum hole of the barr...
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