Plastic extruder category and forming principle

Spiral wound pipe machine plastic extruder can be divided into single screw extruder, twin-screw extruder, and multi-screw extruder according to the number of screws. The extrusion method of the spiral wound pipe machine plastic extruder generally refers to the melting of the plastic at a high temperature of about 200 degrees, and the molten plastic is passed through the mold to form the desired shape.

Here is the content list:

l Plastic extruder category

l Forming principle

Plastic extruder category

Spiral wound pipe machine plastic extruder can be divided into spiral wound pipe machine single screw extruder, spiral wound pipe machine twin-screw extruder, and spiral wound pipe machine multi-screw extruder according to the number of screws. At present, the spiral wound pipe machine single screw extruder is the most widely used, which is suitable for the extrusion processing of general materials. Spiral wound pipe machine twin-screw extruder has the characteristics of less heat generated by friction and more uniform shearing of materials.

Spiral wound pipe machine single screw extruder occupies an important position as a plasticizing pelletizing machine or spiral wound pipe machine molding processing machine. In recent years, the spiral wound pipe machine single screw extruder has made great progress.

The twin-screw extruder has good feeding characteristics and is suitable for powder processing. It has better mixing, venting, reaction, and self-cleaning functions than the single-screw extruder. It is characterized by processing and blending plastics with poor thermal stability. The material time shows its superiority. Based on the spiral wound pipe machine twin-screw extruder, to process the blends with poor thermal stability more easily, the spiral wound pipe machine multi-screw extruder was developed.

1. According to the number of screws, it is divided into spiral wound pipe machine single screw extruder, spiral wound pipe machine twin-screw extruder, and spiral wound pipe machine multi-screw extruder;

2. According to whether there is a screw in the spiral wound pipe machine extruder, it is divided into spiral wound pipe machine screw extruder and spiral wound pipe machine plunger extruder;

3.According to the operating speed of the spiral wound pipe machine screw:

Ordinary extruder: the speed is below 100r/min;

High-speed extruder: the speed is 100～300r/min;

Ultra-high-speed extruder: the speed is 300～l500r/min.

4. According to the assembly structure classification of spiral wound pipe machine extruder: there are integral extruder and separate extruder;

5. According to the spatial position of the screw in the spiral wound pipe machine extruder, it can be divided into the horizontal extruder and vertical extruder;

6. According to whether the spiral wound pipe machine extruder is vented during processing, it can be divided into the vented extruder and non-vented extruder.

Forming principle

The extrusion method of the spiral wound pipe machine plastic extruder generally refers to the melting of the plastic of the spiral wound pipe machine at a high temperature of about 200 degrees, and the molten plastic is then passed through the mold to form the desired shape. Spiral wound pipe machine extrusion molding requires a deep understanding of the plastic characteristics of spiral wound pipe machines and rich experience in mold design. It is a molding method with high technical requirements.

Spiral wound pipe machine extrusion molding is a method in which materials are continuously passed through a die in a flowing state by heating and pressurizing in an extruder, also known as "extrusion". Compared with other forming methods of spiral wound pipe machines, it has the advantages of high efficiency and low unit cost.

If you have some questions about the types of plastic extruders and molding principles, or have other questions about the plastic extrusion of spiral wound pipe machines, please contact Eagle Machinery Co., Ltd. We are very enthusiastic to answer your questions.