What are the molding techniques for rubber products?

Rolling forming: suitable for manufacturing simple sheet and plate-shaped products. It is a method of pressing rubber compound into film through a rolling machine called rolling molding. Some rubber products (such as tires, rubber tapes, hoses, etc.) use textile fiber materials that are coated with a thin layer of glue, and the gluing process is usually completed on a rolling mill.

Fiber materials need to be dried and impregnated before rolling. The purpose of drying is to reduce the moisture content of the fiber material (to prevent water evaporation and foaming) and increase the temperature of the fiber material to ensure the quality of the rolling process. Immersion glue is a process before hanging glue, aimed at improving the bonding performance between fiber materials and rubber materials.

Extrusion molding: Used for more complex rubber products, such as tire treads, rubber tubes, and surface coatings on metal wires, which need to be manufactured through extrusion molding. Put the plastic mixture into the hopper of the extruder. Under the extrusion of the screw, a method of continuous shaping through various mouth shapes is used. Before extrusion, the rubber material is preheated to make it soft and easy to extrude, thereby obtaining rubber products with smooth surfaces and accurate dimensions.

The rubber industry is one of the important basic industries of the national economy. It not only provides essential light industrial rubber products for people's daily lives, but also offers various rubber production equipment or rubber parts for heavy industry and emerging industries such as mining, transportation, construction, machinery, and electronic products. It can be seen that the rubber industry has a wide variety of products, and the backward industries are very extensive.

Compression molding: It is also possible to use compression molding to manufacture rubber products with complex shapes, such as cups and seals. With the help of molded molds, the rubber material is placed in the mold and heated to form.