Steel mills use various seals in the production process to ensure the sealing performance of equipment and pipes. Here are some seals commonly used in steel mills:
1. O-ring: O-ring is a circular seal made of rubber or other elastic material. It is widely used in the sealing of various pipes, valves and connectors, and can withstand harsh conditions such as high temperature, high pressure and chemical corrosion.
2. Gasket: Gasket is a kind of thin sheet seal used to fill the gap of the connecting surface and increase the sealing performance. Common gasket materials include metal, rubber, paper and plastic, etc., according to the specific requirements to choose the appropriate material.
3. Flange gasket: Flange gasket is a seal used for flange connection, usually made of metal or rubber. It provides reliable sealing performance in high temperature, high pressure and vibration environments.
4. Expansion joint: The expansion joint is a kind of seal used for the connection of pipes and equipment, which can absorb the thermal expansion and cold contraction caused by temperature changes, and maintain the sealing performance. Common expansion joint materials include metal and rubber.
5. Sealing rubber strip: Sealing rubber strip is a kind of seal used to fill gaps and prevent liquid or gas leakage. It is usually made of materials such as rubber or silicone and is widely used in the sealing of equipment and pipes.
In addition to the above commonly used seals, steel mills may also use seals of other special materials and structures to meet specific process requirements and environmental conditions. When selecting and using seals, it is necessary to take into account temperature, pressure, medium properties and the specific requirements of equipment and pipelines to ensure sealing performance and safety.