The most popular plastic extruder for processing a

2022-07-25
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In all chemical manufacturing industries, plastic extruders can be matched with Langsheng, a group of pipes and thin special chemicals, which is consolidating its position in the growing Chinese market: the company headquartered in Cologne, Germany, will invest about 20million euros in various plastic forming auxiliary machines, such as film, holding, monofilament, flat filament, packing belt, extrusion, plate, profile, granulation, cable coating, etc, It forms various plastic extrusion production lines to produce various plastic products. It also depends on the downstream demand.

nearly 20 years ago, as we know, the feeding of extruders was usually done manually. People struggled to add pellets from a certain place into the hopper of extruders in bags or boxes. However, with the introduction of automation technology in the plastic processing process, people can be freed from the heavy physical labor and dust flying environment. The work previously completed manually is now completed automatically by the conveying equipment

with the joint efforts of the technology and R & D personnel in the industry, some major special models, such as exhaust extruder, series disc screw extruder, reciprocating pin screw extruder, foam extruder, extruder with melt gear pump, series multi-stage extruder, planetary screw extruder, etc., are produced by domestic manufacturers, with independent R & D capability and independent intellectual property rights

extruders can be divided into single screw extruder, twin screw extruder and multi screw extruder according to the number of screws. At present, single screw extruder is the most widely used, which is suitable for the extrusion of general materials. The twin-screw extruder has the advantages of less heat generated by friction, uniform shearing of materials, large screw conveying capacity, stable extrusion volume, long stay of materials in the barrel and uniform mixing. Sjsz series conical twin-screw extruder has the characteristics of forced extrusion, high quality, wide adaptability, long service life, low shear rate, difficult material decomposition, good mixing and plasticizing performance, direct powder forming, etc. the temperature can be used as tension resistance test, pressure resistance test, bending resistance test control, vacuum exhaust and other devices. It is applicable to the production of pipes, plates, special-shaped materials and other products

single screw extruder plays an important role in both plasticizing and granulating machinery and forming and processing machinery. In recent years, single screw extruder has made great progress. At present, the large single screw extruder for granulation produced in Germany has a screw diameter error of 700mm and a output of 36t/h. The main mark of the development of single screw extruder lies in the development of its key part screw

in recent years, people have carried out a lot of theoretical and Experimental Research on screws. Up to now, there are nearly 100 kinds of screws, including separation type, shear type, barrier type, shunt type and wavy type. In terms of the development of single screw, although the single screw extruder has been relatively perfect in recent years, with the continuous development of polymer materials and plastic products, more characteristic new screws and special single screw extruders will emerge

in the plastic extrusion molding equipment, the plastic extruder is usually called the main machine, while its supporting follow-up equipment, the plastic extrusion molding machine, is called the auxiliary machine. After more than 100 years of development, plastic extruders have been derived from the original single screw into twin-screw, multi screw and even non screw models

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