Rubber seals are a kind of general basic components in sealing devices, which play a very important role in the contradiction between leakage and sealing. Rubber seals are a type of rubber products widely used in sealing technology.
- Compression molding of rubber seals
Rubber seals are commonly used to manufacture rubber products with complex shapes such as cups and sealing rings. The rubber is placed in the mold for heating and forming with the help of a molding mold.
Rubber seals are used for more complex rubber products. Tire treads, rubber tubes, and metal wire surface coatings need to be manufactured by injection molding. It is a method in which the rubber compound with a certain degree of plasticity is put into the hopper of the extruder and continuously molded through various mouth shapes under the extrusion of the screw. The rubber material must be preheated before being pressed out by the aging furnace to ensure that the rubber material is soft and easy to extrude, so that a smooth surface and accurate size rubber product can be obtained.
- Calendering
Rubber seals are suitable for the manufacture of simple sheet-shaped and plate-shaped products. It is a method of pressing the rubber compound into a film with a certain thickness and a width through a calender, called calendering. Some textile fiber materials used in rubber products, such as tires, rubber cloth, hoses, etc., must be coated with a thin layer of glue. Gluing on the fiber is also called glueing or rubbing. The glueing process is generally completed on a calender.