Plastic extruder after more than 100 years of development, has been derived from the original single screw twin screw, multi-screw, and even no screw and other models. Plastic extruder (host) can be matched with pipe, film, holding material, monofilament, flat wire, packing belt, extrusion mesh, plate (sheet) material, profile, granulation, cable coating and other plastic molding auxiliary machine, to form a variety of plastic extrusion molding production line, the production of various plastic products.

Development trend of plastic extruder

1, extruder toward large-scale, high-speed, high-efficiency direction of development

foreign screw diameter of 200— 250mm extruder is very common, screw diameter greater than 400mm special extruder is not rare. Increasing the diameter of the screw can improve the production capacity of the extruder, when the screw diameter is doubled, the production capacity of the extruder can be increased several times.

High-speed and ultra-high-speed extruders with speed above 300r/min appear abroad, so that the production capacity of the extruder has been greatly improved. But after the speed increase will bring bad plasticization and other problems, which has appeared many new screw, such as separation type, mixing type, barrier type, flow type, combined type and so on. The length-diameter ratio of the screw has also developed from 20:1 to 36:1, and some are as high as 43:1.

2, modular

extruder auxiliary equipment has also become perfect, standardized, to meet the requirements of different plastic products. Modular production can adapt to the special requirements of different users, shorten the research and development cycle of new products, and strive for a larger market share; And specialized production can arrange the various system module parts of extrusion molding equipment for fixed-point production and even global procurement, which is very beneficial to ensure the quality of the whole period, reduce costs and accelerate capital turnover.

3, intelligent and networked

Developed countries have generally adopted modern electronic and computer control technology, the entire extrusion process parameters such as melt pressure and temperature, fuselage temperature, the main screw and feeding screw speed, feeding amount, the ratio of various raw materials, the current and voltage of the motor and other parameters for online detection, And adopts microcomputer closed-loop control. Some companies have adopted online remote monitoring, diagnosis and control, the extrusion molding production line for network control. This is very beneficial to ensure the stability of process conditions and improve the accuracy of products.

4, customized

In order to meet the requirements of new materials and new processes, new or special extruders continue to appear. Such as three screw extruder and planetary multi-screw, non-screw extruder, reaction extruder, two-color extruder, foam extruder and so on.

What is the industry prospect of plastic extruder?

Because China's extruder products and strategic new industries are closely linked, with the advantages of high efficiency, energy saving and high cost performance, exports to developed countries are mainly low-end, this part of the consumer demand is rigid. Therefore, the plastic machinery industry will have a broad market prospects. At the same time, we also need to see the challenges facing!

Industry demand:

(1) Starting from the development of plastic products, to provide plastic machinery users with a full range of services from products, process formula, equipment and after-sales service.

(2) According to the requirements of users, design and manufacture suitable equipment for users to solve their process difficulties.

(3) Learn from the technological development of related industries in a timely manner, and apply the latest scientific and technological achievements to the industry. For example, the scientific and technological achievements of electronics, communications industry, automobile industry and aerospace industry.

(4) keep up with the progress of material science, so that new equipment can adapt to the processing of new raw materials.

(5) Strive for high speed, high efficiency and energy saving of equipment operation.

Coping strategies:

(1) To break the original industry boundaries, to achieve plastic machinery to serve a larger market.

(2) Continue to learn from foreign advanced products and processes and equipment to develop China's plastic machinery, improve the technical level.

(3) Avoid the vicious competition in China and open up foreign markets.

(4) Focus on a local market to expand the business.

(5) Increase investment in science and technology, accelerate the recruitment of high-quality management and scientific and technological personnel, in order to further develop and strive to reach the international advanced level.

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