The Difference Between Twin Screw Extruder And Injection Molding Machine

Before buying a {twin screw extruder}, many friends would confuse it with an injection molding machine. But in fact, the difference between the two machines is very obvious. The difference between them is mainly manifested in the production and processing of raw materials and the working principles of these two fields.

If you want to improve the efficiency of the entire equipment, you need to pay special attention to many things. In this article, the editor will introduce in detail the difference between twin-screw extruder and injection molding machine, and several issues that should be paid special attention to in use.

1. Production and processing of raw materials

The working method of the twin-screw extruder is extrusion molding, so even if the viscosity is slightly higher, it is likely to be suitable for a very wide range of raw materials. The injection molding machine continuously extrudes and molds the plastic particles after melting the plastic particles (such as plastic hoses, plastic plates, plastic rods, etc.).

Taking into account that the injection molding machine runs after melt injection molding, it is suitable for a small range of raw materials, that is, the viscosity of the raw materials should not be too high. 

2. Basic principles

The twin-screw extruder melts the plastic particles (such as plastic hoses, plastic plates, plastic rods, etc.), and then continuously extrudes them according to the plastic mold. Any type of plastic is good.

The injection molding machine is based on melting plastic particles into a closed cavity, filling the cavity, and running in suspension. According to the cooling, the plastic is fixed into a certain shape, so that it can run after the plastic mold is opened, such as plastic cups, plastic cans, and various miscellaneous materials. The plastic shell and so on.