What do you know about rubber extruder?

The rubber extruder can be used to make rubber strips, sealing strips, and the like, as well as sealing rings, seals, and the like. According to different processes, many varieties of rubber parts can be produced. They are mostly used for parts sealing, as well as special purposes, such as It is resistant to high temperature and flame retardant, and various rubber products used in daily life. If you also want to know, please read it next.

Here is the content list:

•  What is the basic process flow of rubber extruder?
•  What are the raw material preparations?
•  How to masticate?

What is the basic process flow of rubber extruder?

There are many types of rubber products, but the production process of rubber extruder is the same. There are six basic processes for rubber products made from general solid rubber raw rubber: plasticization, mixing, calendering, pressing, molding, and vulcanization. Of course, basic processes such as raw material preparation, finished product finishing, inspection, and packaging are also indispensable. Rubber extruder’s processing process is mainly to solve the contradiction between plastic and elastic properties. Through various technological means of rubber extruder, the elastic rubber becomes plasticized plastic compound. Rubber extruder adds various compounding agents to make semi-finished products, and then through vulcanization, the plastic semi-finished products become elastic and physical machinery. Good performance rubber products.

What are the raw material preparations?

1. The main raw material for rubber products made by rubber extruder is raw rubber, which grows on tropical and subtropical rubber trees and is collected by cutting the bark manually.

2. Various compounding agents of rubber extruder are auxiliary materials added to improve certain properties of rubber products.

3. Fiber materials (cotton, linen, wool and various man-made fibers, synthetic fibers and metal materials, steel wires) are used as the skeleton material of rubber products to enhance the mechanical strength of rubber products produced by rubber extruder and limit product variations. The raw material preparation process requires an accurate weighing of the ingredients according to the formula. To mix the raw rubber and the compounding agent evenly, the rubber extruder needs to process the material. Raw rubber should be dried in a drying chamber of 60-70 before being cut and crushed. The compounding agent is lumpy. Such as paraffin, stearic acid, rosin, etc. must be crushed.

How to masticate?

Because raw rubber is elastic and lacks the necessary plastic properties during processing, it is not convenient to process directly in the rubber extruder. To improve its plasticity, it is necessary to add a compounding agent to the rubber extruder when plasticizing and mixing the raw rubber, so that it is easy to uniformly disperse in the raw rubber. At the same time, the calendering and molding process of the rubber extruder also helps to improve the permeability of the rubber material, penetrate the fiber fabric, and mold fluidity. Mechanical plasticization is the process of degrading and shortening long-chain rubber molecules from a highly elastic state to a plastic state through the mechanical extrusion of the rubber extruder and the action of friction at a not too high temperature.

Qingdao Huicai Machine Manufacture Co., Ltd developed a rubber extruder. Our company is very confident in the quality of rubber extruder because these are guaranteed and tested, if you need, you can come to know our products.