High temperature performance of metal seals: application cases and technological innovations

In various industrial fields, metal seals are favored for their excellent high-temperature performance. The sealing requirements in high-temperature environments are strict, while metal seals can stably withstand high temperatures and high pressures to ensure the safe operation of equipment. This article will explore the application cases of metal seals in high-temperature environments and introduce related technological innovations.

1. Application cases

a. Petrochemical industry

In petrochemical industries such as refineries and chemical plants, equipment often needs to work in high-temperature and high-pressure environments. Metal seals are widely used in various reactors, heat exchangers, pipeline connections and other equipment to ensure the sealing performance and safe operation of equipment at high temperatures.

b. Aerospace field

The high-temperature performance requirements of seals in the aerospace field are particularly strict. Metal seals are used in key components such as engines, gas turbines, hydraulic systems, etc., and can withstand high-temperature and high-pressure working environments to ensure the flight safety of aircraft.

c. High-temperature industrial furnaces

In high-temperature industrial fields such as metallurgy, glass, and ceramics, metal seals also play an important role. They are used for sealing various high-temperature furnaces, such as blast furnaces, electric furnaces, glass kilns, etc., and can maintain good sealing performance in extreme high-temperature environments.

2. Discussion on technological innovation

a. Application of new materials

With the continuous development of materials science, the application of new high-temperature alloys, wear-resistant materials and other materials has provided new possibilities for the high-temperature performance of metal seals. These materials have good high-temperature stability and corrosion resistance, and can meet more demanding working environment requirements.

b. Sealing structure optimization

The sealing performance and high-temperature resistance of metal seals can be improved through the optimization design of the sealing structure. The use of new structures such as double-layer metal structure and bellows seal can effectively improve the sealing performance and reliability of seals and extend their service life.

c. Surface coating technology

The application of surface coating technology can effectively improve the surface hardness, wear resistance and corrosion resistance of metal seals, and enhance their stability and durability in high-temperature environments. The use of advanced coating technologies such as ceramic coating and carbide coating can significantly improve the performance of metal seals.

In summary, the application cases of metal seals in high temperature environments are rich and varied, and related technological innovations are also constantly promoting the development of the industry. Through continuous exploration and innovation in the application of new materials, optimization of sealing structures and surface coating technology, metal seals will be able to better adapt to the challenges of various high-temperature industrial environments and provide more reliable sealing solutions for industrial production.

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