News

Home / News (Page 17)

The role of the injection molding machine screw
10-06-2019
The screw is an important part of the injection molding machine. Its role is to transport, compact, melt, agitate and apply pressure to plastics. All of this is done by the rotation of the screw in the barrel. When the s...
Injection molding machine maintenance
31-05-2019
Daily maintenance points (1) Inspection before driving. A. Check if the safety device is effective and reliable (the safety device works when the safety door is opened) B. Check if the safety cover of each part is correc...
How is the shape of the extruder screw head designed
25-05-2019
During the extrusion process, when the plastic melt enters the nose flow path from the spiral groove, its flow pattern changes abruptly, and the spiral ribbon flow changes into a straight flow. In order to obtain better ...
Barrier screw
17-05-2019
1. Design ideas: The barrier type screw is a kind of screw which establishes a barrier section in a certain part of the screw to make the unmelted solid phase fail to pass and promote the solid phase to melt. 2, the stru...
Several common new types of screws
11-05-2019
In view of the problems existing in conventional screws, the extrusion process was deeply studied, and various new types of screws were developed on the basis of a large number of experiments and production practices. Co...
New screw design method
05-05-2019
The so-called new screw is compared to a conventional full-thread three-stage screw. The new type of screw has many features in principle and structure design. They are developed on the basis of conventional full-thread ...