Plastic Extruder Multi-functional development
The multi-functional development of plastic extruder can expand its applicable space
In all kinds of plastic machinery, the core is undoubtedly a plastic extruder, plastic processing industry has become a widely used one of the models. Plastic extruder consists of extrusion system, transmission system and heating and cooling system, according to the number of screws can be divided into single screw extruder, twin screw extruder and multi-screw extruder. From the use of extruder to the present, the extruder developed rapidly and gradually formed a line in line with their own development.
Plastic Extruder modular specialized production on the one hand can strive for greater market share, on the other hand to ensure the quality of the whole period and speed up the cash flow are very favorable, multi-functional development can expand its space, large-scale development can be reduced Production costs, in the next development, we need to focus on its functional and network, while saving manpower to ensure the stability of the process can greatly improve the accuracy of the product.
China's plastic extruder market is developing rapidly, there are many new models introduced by the industry's technology, R & D personnel to work together, some of the major special models such as exhaust extruder, tandem mill screw extruder, reciprocating Type screw extruder, foam extruder, extruder with melt gear pump, series multi-stage extruder, planetary screw extruder, etc. are produced in the country manufacturers, with independent research and development capabilities , And enjoy independent intellectual property rights.
With the upgrading of technology, plastic extruder equipment has long been the end of the manual feeding of the times, people can be heavy physical labor and dust flying out of the environment, the original work done by the manual now by the transport equipment automatically The plastics industry has made great contributions.
Plastic extruder host and production line in the future market will be high technical content, the direction of price reduction. Domestic host is now basically tapered twin screw extruder and single screw extruder-based, more mature technology, the market is also the largest sales, but the general specifications of such products have been oversupply, can only maintain the peak market 50% to about 60%.
The main focus of the future of the host is the development of parallel to the twin screw extruder, suitable for large extrusion molding extrusion. Parallel to the same twin-screw extruder to the sixth generation, the seventh generation of high-speed, large aspect ratio direction. Single screw extruder development direction is large diameter, large diameter ratio, exhaust smooth. In fact, the single screw extruder is a low-power, low-cost model, as long as the technology properly, it is basically able to achieve the effectiveness of twin-screw extruder, such as the United States is now using plastic extruders are mostly Single screw, due to the high technological content, replaced the twin screw extruder.
The extruder can be divided into single screw, twin screw and multi screw extruder according to its screw number. At present, the most widely used single screw extruder is suitable for the extrusion of general materials. Twin-screw extruder due to the less heat generated by the friction, the material is more uniform shear, the screw conveyor capacity, the extrusion is relatively stable, the material in the barrel to stay long, mixed evenly. SJSZ series of conical twin-screw extruder with forced extrusion, high quality, wide adaptability, long life, low shear rate, easy decomposition of materials, mixing plasticizing performance, powder molding and other characteristics, temperature control, Vacuum exhaust and other devices. Applicable to the production of tubes, plates and profiled products.
Single screw extruder both as a plasticizing granulation machinery or forming processing machinery have an important position in recent years, single screw extruder has been a great development. At present, the German production of large-scale granulation with a single screw extruder, screw diameter of 700mm, the output of 36t / h. The main sign of the development of single screw extruder lies in the development of its key parts - screw.