After more than 100 years of development, the plastic extruder has been derived from the original single-screw twin-screw, multi-screw, and even non-screw and other models. Plastic extruder (host) can be used with a variety of plastic molding auxiliaries such as pipe, film, support material, monofilament, flat wire, packing tape, squeeze net, plate Matched to form a variety of plastic extrusion molding production lines, the production of various plastic products.
Plastic extruder development trend
1, extruder toward large-scale, high-speed, high efficiency direction
Foreign screw diameter of 200-250mm extruder has been very common, screw diameter greater than 400mm special extruder is not uncommon. Increasing the screw diameter can increase the production capacity of the extruder. When the diameter of the screw is doubled, the production capacity of the extruder can be increased several times.
Foreign appeared speed above 300r / min high-speed and ultra-high-speed extruder, extruder production capacity has been greatly improved. However, after the speed increase will bring poor plasticization and other issues, there have been many new screw, such as separation, mixing type, barrier type, shunt type, combination and so on. The aspect ratio of the screw also evolved from 20: 1 to 36: 1, while others were as high as 43: 1.
2, modular
Auxiliary auxiliary equipment for extruders has also been perfected, standardization, to meet the requirements of different plastic products. Modular production can be adapted to the special requirements of different users, shorten the R & D cycle of new products and strive for greater market share; and specialized production can make all system module components of extrusion molding equipment sentinel production or even global procurement, To ensure the quality of the entire period, reduce costs and speed up capital turnover are very favorable.
3, intelligent and network
Developed countries, the extruder has been widely used modern electronic and computer control technology, the entire extrusion process parameters such as melt pressure and temperature, the fuselage section temperature, the main screw and feed screw speed, feed, each The ratio of raw materials, the motor current and voltage parameters for online testing, and the use of closed-loop computer control. Some companies have used online remote monitoring, diagnosis and control of the extrusion molding production line network control. This is to ensure the stability of the process conditions, improve product accuracy are extremely beneficial.
4, customized
In order to meet the requirements of new materials and new processes, new or dedicated extruders continue to emerge. Such as three-screw extruder and planetary multi-screw, screwless extruder, reactive extruder, two-color extruder, foam extruder.
Plastic extruder industry prospects?
As China's extruder products and strategic new industries are closely linked, with high efficiency, energy-saving advantages and high cost, exports to developed countries in the low-end-based, this part of the consumer demand has become rigid. Therefore, the plastic machinery industry will have a broad market prospects. At the same time, we also need to see the challenges we face!
Industry demand:
(1) Beginning with the development of plastic products, we provide a full range of services to users of plastic machinery, including products, process recipes, equipment and after-sales services.
(2) In accordance with the requirements of users, design and manufacture for users to solve their technical difficulties applicable equipment.
(3) Timely draw on the technological development of relevant industries and apply the latest scientific and technological achievements to the industry. Such as electronics, telecommunications and automotive industry, aerospace industry's scientific and technological achievements.
(4) Keeping with the progress of materials science, new equipment is adapted to the processing of new types of raw materials.
(5) strive to equipment operation speed, efficiency and energy saving.
preventive solution:
(1) to break the original industry boundaries, to achieve greater service of plastic machinery market.
(2) continue to learn advanced foreign products and technology and equipment to develop China's plastic machine, improve the technical level.
(3) to avoid the vicious competition in the country and open up foreign markets.
(4) focus on a local market will be bigger business.
(5) Increase investment in science and technology, speed up the absorption of high-quality management and scientific and technical personnel in order to further develop and strive to achieve the international advanced level.
