Qingdao AOD Rubber Products Co., Ltd.

What are the production processes of rubber products?

What are the production processes of rubber products?

First, the main raw materials of rubber products are raw rubber, various compounding agents, and fiber and metal materials as skeleton materials. The basic production process of rubber products is summarized as follows: Process: 1. Mastication 2, mixing 3, calendering 4 , extrusion 5, molding 6, vulcanization

Second, specifically:

The rubber processing process is mainly to solve the contradiction between plasticity and elasticity. Through various processing means, the elastic rubber becomes a plasticized plastic compound, and a semi-finished product is prepared by adding various compounding agents, and then it is plasticized by vulcanization. The semi-finished products are turned into rubber products with high elasticity and good physical and mechanical properties.

1. How to make rubber

The latex of plants such as rubber trees and rubber grass is extracted, and processed into materials having elasticity, insulation, watertightness and air. Highly elastic polymer compound. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from plants such as rubber trees and rubber grasses; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in various aspects of industry or life.

2, the processing

The process includes basic processes such as mastication, mixing, calendering or extrusion, forming and vulcanization. Each process has different requirements for the products, and is combined with a number of auxiliary operations. In order to be able to add various required compounding agents to the rubber, the raw rubber first needs to be plasticized to improve its plasticity; then the carbon black and various rubber additives and rubber are uniformly mixed into a rubber compound by kneading; the rubber material is pressed. The blank is formed into a certain shape; and then combined with the calcined or glued textile material (or metal material) to form a semi-finished product; finally, the vulcanized and semi-finished plastic product is made into a highly elastic final product. .

3. For products with high precision requirements, oil seals, O-rings, seals and other rubber products, trimming and deburring are also required. The optional methods include manual trimming, mechanical trimming and freezing trimming.

Artificial trimming: labor intensity, low efficiency, and low pass rate.

Mechanical trimming: mainly punching, grinding wheel grinding and round knife trimming, suitable for specific products with low precision requirements.

Freezing Trimming: The special freezing trimming machine is based on the principle that liquid nitrogen (LN2) is used to make the finished burrs brittle at low temperatures, and specific frozen particles (projectiles) are used to hit the burrs to quickly remove the burrs. The process of freezing and trimming is high, the cost is low, and the products are widely used. It has become the mainstream process standard.

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