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Extruders Years Of Development
- Sep 27, 2017 -

Extruders Years of development

In the plastic extrusion molding equipment, plastic extruder is usually called the host, and its supporting follow-up equipment, plastic extrusion molding machine is called auxiliary. Plastic extruder after 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 with the pipe, film, holding materials, monofilament, flat wire, packing belt, squeeze network, board (film), profile, granulation, cable coating and other plastic molding auxiliary Matching, forming a variety of plastic extrusion molding production lines, the production of various plastic products. Therefore, the plastic extrusion molding machinery, whether present or future, are the plastics processing industry is widely used in one of the models.

     Extruder originated in the 18th century, England J oseph B ra ma h in 1795 manufacturing for the manufacture of seamless lead pipe manual piston extruder is considered the world's first extruder The Since then, in the first half of the nineteenth century, the extruder was basically used only for the production of lead pipes, the processing of macaroni and other foodstuffs, brick making and ceramic industry.

    The plastic extruder can be divided into single screw extruder, twin screw extruder 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 friction generated by the less heat, 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.

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.

The twin-screw extruder has good feed characteristics and is suitable for powder processing and has better kneading, exhaust, reaction and self-cleaning functions than single-screw extruders, which are characterized by poor thermal stability of plastics and blends Material when it shows its superiority. On the basis of a twin-screw extruder, a multi-screw extruder, such as a plastic extruder, has been developed for easier processing of poorly thermally stable blends. Views: 4993 Posted: 2013-06-11 [Big Middle Small]

    As one of the main varieties in the plastics machinery industry, it accounts for 31% of the total value of plastic machinery. Extrusion equipment with its clear function, with a special capacity of large-scale process has a decisive contribution. These extrusion equipment will soon be due to special technology and become indispensable or irreplaceable equipment. As one of the main varieties in the plastics machinery industry, it accounts for 31% of the total value of plastic machinery. Extrusion equipment with its clear function, with a special capacity of large-scale process has a decisive contribution. These extrusion equipment will soon be due to special technology and become indispensable or irreplaceable equipment.