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Screw barrel for extrusion of tubular products

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Screw barrel for extrusion of tubular products

Zhoushan Intai Screw Manufacture Co.,Ltd. is a leading high-quality Screw barrel for extrusion of tubular products manufacturer. By virtue of over 20 years of professional experience, INTAI has been growing at a steady pace and has been always committed to creating a world top provider of Screw barrel for extrusion of tubular products. It owns a series of unique functions for R&D, design, production and aftersales which enable the products to be distinguished from others.
We only use first-class and check every production procedure to ensure precise production of every size. A final complete inspection will be performed before dispatch. +86-580-8058728 Inquire
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Screw barrel for extrusion of tubular products

Industry Knowledge

What is Screw Barrel For Plastic Extrusion Machines？
A screw barrel in a plastic extrusion machine is a crucial component that is responsible for melting and transporting the plastic material from the hopper to the die. The screw barrel consists of a screw that rotates within a cylindrical barrel. The screw has flights or helical ribs along its length that move the plastic material forward as the screw rotates. The screw and the barrel are typically made of heat-resistant alloy steel and are designed to withstand the high temperatures and corrosive conditions that exist within the plastic extrusion process. The screw and barrel assembly is often referred to as the extruder.
The design of the screw and barrel are important factors that determine the quality of the final extruded product, as well as the efficiency of the extrusion process. Factors such as the length and diameter of the screw, the pitch and depth of the flights, and the material properties of the screw and barrel, all play a role in the performance of the screw barrel. In some cases, multiple screws may be used in a single barrel to increase the mixing and plasticizing capacity of the extruder.
In summary, the screw barrel in a plastic extrusion machine is a key component that is responsible for melting and conveying the plastic material from the hopper to the die. The design and material properties of the screw and barrel are critical factors that impact the quality and efficiency of the extrusion process.
How to choose Screw Barrel For Plastic Extrusion Machines？
Choosing the right screw barrel for a plastic extrusion machine is essential to ensure optimal performance and quality of the final extruded product. Here are some of the factors to consider when selecting a screw barrel:
1. Type of Plastic: The choice of screw barrel should be based on the type of plastic being processed. Different types of plastics have different melting and flow characteristics, and the screw and barrel design should be optimized for the specific material being used.
2. Extrusion Process: The design of the screw and barrel should match the desired extrusion process, such as single or twin screws, co-extrusion, or special processes like reactive extrusion or sheet extrusion.
3. Output Requirements: The size of the screw and barrel should be selected based on the desired output rate, as larger screws and barrels can accommodate higher output rates.
4. Quality Requirements: The design of the screw and barrel can impact the final product quality, such as uniformity, dimensional stability, and surface finish. Consider the specific quality requirements of the product when selecting the screw and barrel.
5. Maintenance and Cost: The cost of the screw and barrel, as well as maintenance and replacement costs, should be considered when making a selection.
6. Material of Construction: The screw and barrel should be made of a material that is resistant to the high temperatures and corrosive conditions that exist in the extrusion process. Common materials include high-alloy steels, tool steels, and ceramic.
7. Manufacturer Support: The manufacturer should have experience in screw and barrel design and be able to provide technical support and troubleshooting assistance as needed.
When selecting a screw barrel, it's important to work with a supplier who has expertise in the design and production of screw and barrel assemblies for the plastic extrusion industry. This will help ensure that the right screw and barrel are selected for the specific requirements of the extrusion process and product.