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What is a conical twin screw extruder? What are the advantages over traditional extruders?
Jul 14 , 2022
The conical twin screw extruder has the characteristics of uniform plasticization and mixing, high output, stable quality, wide adaptability, long service life, and direct molding of PVC powder. With the corresponding forming head mold and auxiliary machine, various thermoplastics, especially hard polyvinyl chloride powder, can be directly extruded into plastic products such as tubes, plates, shee...
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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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Common Problems and Solutions in the Production Process of PVC Boards
Apr 06 , 2023
Common Problems and Solutions in the Production Process of PVC Boards Production Line 1. The surface of the board is yellow Causes: Insufficient dose of stabilizers Insufficient external slip and large friction cause material decomposition The set temperature is too high Solutions: Increase the dose of stabilizer Increase the dose of slippery agent Lower the temperature 2. The board su...
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Properties of PVC impact modifier and its application
Apr 11 , 2023
PVC resin is a hard and brittle material with poor impact strength, generally only 3-5 kJ/m. The main reason for the need to improve the impact strength of unplasticized PVC is its sensitivity to notching. Besides, it is necessary to improve its low temperature impact resistance. By co-blending impact modifiers in PVC polymers, the toughness of PVC materials can be increased．These impact modifiers...
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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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What is PVC pipe and How it Manufactured?
May 29 , 2023
PVC pipe has been in use for over 80 years, servicing a multitude of applications in various market sectors around the world. Compared with metal piping, PVC pipes are exceptionally rigid and durable, with complete corrosion resistance and with little risk of succumbing to thermal expansion or contraction. PVC pipes are commonly used in water supply, plumbing and irrigation, which is lightweight, ...
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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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