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Differences in silicone rubber molding, extrusion, and vapor phase processes

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Silicone rubber is a material with high elasticity, high temperature resistance, and good chemical stability, which is widely used in electronics, automotive, medical, and other industries. The main processing techniques for silicone rubber include molding, extrusion, and vapor phase methods. This article will focus on the differences between these three processes.

1、 Molding process
The silicone rubber molding process involves placing a silicone rubber preform into a mold and molding it under high temperature and pressure. This process has the advantages of high production efficiency, high molding accuracy, and smooth product surface. The silicone rubber molding process is suitable for producing smaller and more complex silicone rubber products, such as seals, gears, O-rings, etc.

2、 Extrusion process
The silicone rubber extrusion process involves heating the silicone rubber preproduct to a molten state, and then extruding the molten silicone rubber through an extruder. This process has the advantages of high production efficiency, short production cycle, and low cost. The silicone rubber extrusion process is applicable to the production of elongated silicone rubber products, such as sealing strips, conduits, cables, etc.

3、 Gas phase process
The silicone rubber vapor phase process involves adding silane gas to a high-temperature reactor to form silicone rubber through a chemical reaction. This process has the advantages of high production efficiency, high molding accuracy, and stable product quality. The silicone rubber vapor phase process is applicable to the production of large quantities of silicone rubber products, such as electronic components, medical devices, etc.

In summary, silicone rubber molding, extrusion, and vapor phase processes have their respective advantages and disadvantages, and appropriate processes should be selected based on factors such as product characteristics and production requirements.

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