Detailed introduction





One minute to take you to understand the barrel screw

In the high-tech era of the 21st century, machinery manufacturing is regarded as an important pillar of the national economy and national defense construction, and in the machinery manufacturing industry,barrel screwmore and more widely used. With the rapid development of machinery manufacturing industry at home and abroad, the technology of barrel screw has also been greatly improved. From the traditional processing method to the numerical control processing, and then to the modern laser sintering technology, the manufacturing technology of the barrel screw has been continuously innovated, so that the performance of the barrel screw has been significantly improved.



The barrel screw also has a lot of room for development in product applications. In the manufacture of modern machinery and equipment, the application range of barrel screw is expanding day by day, not only in printers, photocopiers, fax machines, scanners and other home and office equipment, but also widely used in military, aviation, aerospace, medical, electronics, automobiles, locomotives and other industries. It can be said that the barrel screw is one of the essential parts in the modern machinery manufacturing industry.

In addition, the application of barrel screw is still in constant innovation. For example, some machines that have reached special requirements such as high strength, high toughness, anti-corrosion, wear resistance, and high temperature resistance need to use more advanced materials for production, which provides a wider range of application opportunities for further innovation of the barrel screw. In general, the barrel screw in the machinery industry was once considered a relatively secondary and secondary components, but now with the machinery manufacturing industry for performance and quality requirements, the position and role of the barrel screw has also been significantly improved.

The barrel screw is one of the core components of the plastic extruder, and it is also a key factor affecting the quality of extrusion products. Mastering the process principle of barrel screw can effectively improve the physical properties and appearance quality of products and improve production efficiency. So, what is the process principle of barrel screw?

1. Material

The main selection of alloy steel, high speed steel, tungsten molybdenum alloy and other high strength, high wear-resistant materials. Among them, alloy steel has low cost and moderate hardness, which is suitable for general extrusion production; high-speed steel and tungsten-molybdenum alloy have higher cost, but better wear resistance and corrosion resistance, and are suitable for high-demand extrusion production.

2. Manufacturing process

The manufacturing process mainly includes forging, precision machining, heat treatment and other links. Among them, the forging process is one of the important processes in the manufacture of barrel screw, which can make the metal texture smooth and dense. Precision machining is to process the barrel screw after forging to achieve the technical requirements such as specifications and precision. Heat treatment can be changedbarrel screwThe internal organization makes it have better wear resistance and mechanical properties.

3. Machining accuracy

The machining accuracy of barrel screw is one of the important factors affecting the quality of extrusion production. The outer diameter, inner diameter and pitch of the barrel screw need to maintain a certain degree of accuracy to ensure the uniformity and smoothness of the plastic in the extrusion process.

4. Surface treatment of barrel screw

The surface treatment of the barrel screw mainly includes hard alloy plating and chrome plating. The coating of hard alloy has good wear resistance and can prolong the service life of the barrel screw; chromium plating can improve the surface hardness of the barrel screw and make it more durable.

5. Structure form

The structure of the barrel screw is usually divided into single screw, twin screw and multi screw. Single screw is suitable for general plastic extrusion production; twin screw can adapt to the production of different types of plastic products, and has better plasticizing performance; multi screw can be used for the production of polymer compounds, rubber and other special materials.

6. Maintenance

The barrel screw requires regular maintenance to maintain its normal working condition. Specifically including cleaning, lubrication, replacement of the seal ring, check whether the screw surface wear and so on. Only by meticulous and thoughtful maintenance can the long-term stable operation of the barrel screw be guaranteed.

In short, the process principle of barrel screw involves many aspects such as material, manufacturing process, processing accuracy, surface treatment, structural form and maintenance. Only by fully mastering the process principle of barrel screw can we better meet the challenges of extrusion production and improve product quality and production efficiency.