Forming process

Rubber products used in the production process of calender or the extruder made in advance a wide range of process, not the same size? called molding. Molding method

1. calendering

Applicable to the manufacture of simple sheet, sheet-like products. It will mix through the calender is pressed into shape, size of film calendering. Some rubber? such as tires, cloth, textile fiber material used for hoses must be coated with a thin coating on the fiber also called gum paste or rubberized?? Coating process is done on the calender. Fiber material in calendering is required before drying and dipping drying is designed to reduce the water content of the material in order to avoid water evaporation bubble temperature and increase fiber materials to ensure the quality of calendering process. Is glue necessary procedure before dipping objective is to improve the material and bonding properties of rubber compound.

2. compression molding

Rubber products for more complex? like tire treads, rubber hose, wire coating glue requires pressure molding method of manufacture. Are rubber plasticity with into the hopper of the extruder under the inner screw extrusion through a variety of mouth, also called a model for the continuous modeling of a method. Press out the rubber must be preheated before the rubber compound softer, easy to squeeze to get the smooth surface and dimensional accuracy of rubber products.

3. compression molding

Molding methods can also be used to create some complex shape such as a bowl, seal rubber with Yin and Yang thermoform mold compound is placed in a mold.