Polymer laboratory equipment manufacturers tell you the basic principles of extruders

The wide application of extruders is related to the basic principles of their applications. What is the basic principle? Learn about it with the editor of the polymer laboratory equipment manufacturer.

A screw rotates in the barrel and pushes the plastic forward. The screw is actually an inclined surface or slope, wound on the center layer. The purpose is to increase the pressure in order to overcome the greater resistance. As far as an extruder is concerned, there are three types of resistance to overcome: the friction of solid particles (feeding) against the barrel wall and the mutual friction between them during the first few revolutions of the screw (feeding zone); melt The adhesion on the wall of the cylinder; the flow resistance inside the melt when it is pushed forward.

Wuhan Ruiming Experimental Instrument Manufacturing Co., Ltd. is a professional manufacturer of polymer experimental equipment, specializing in the production of experimental micro extruders, micro injection machines, micro high-stretch ratio spinning machines, micro pipe extrusion units, micro pelletizing units and Plastic blow molding machine series products for experiment and so on. The company has also successfully developed a series of laboratory miniature twin-screw extruders and laboratory miniature injection moulding machines at home and abroad.