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What are the performance requirements for non-metallic sealing materials in precision forging?

Release time:

2025-03-13

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Abstract

It exhibits good chemical stability within a certain operating temperature range, is insoluble in the working medium, has strong resistance to corrosion by the working medium, and does not react with metals upon contact (e.g., corrosion, adhesion).

The performance requirements for non-metallic sealing materials in precision forging are as follows:
1. Good chemical stability within a certain operating temperature range, insoluble in the working medium, strong resistance to corrosion by the working medium, and no interaction (such as corrosion or adhesion) with metal when in contact.
2. Good elasticity and small permanent deformation.
3. Appropriate mechanical strength and hardness, capable of withstanding high pressure.
4. Low coefficient of friction and good wear resistance.
5. Not easy to age, long lifespan.
6. Low cost, easy to manufacture, and easy to press into shape.
7. Under special working conditions, it is required that it does not soften at high temperatures and does not harden at low temperatures. Therefore, fluororubber that can withstand extremely high and low temperatures is available.

Key words:

Flange

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