In the forging process of stainless steel,

Annealing is an essential process. Annealing naturally requires the use of an annealing furnace,

The bright annealing furnace is mainly used for heat treatment of stainless steel products in a protective atmosphere.

The requirements for bright annealing furnaces vary depending on their performance, and the industry of heat treatment also varies.

The typical heat treatment process for 300 series austenitic stainless steel pipes is solution treatment.

The key to this heat treatment process is rapid cooling, from 1050 to 1150 ℃, with appropriate insulation for a short period of time to dissolve all carbides in austenite, and then rapidly cool to below 35 ℃.

The heating temperature of 400 series ferritic stainless steel pipes is mostly achieved by slow cooling to obtain annealed and softened microstructure. Usually, segmented quenching and tempering are used for treatment.

During the annealing process, there are also certain requirements for the annealing furnace, and it is necessary to pay attention to the protection of the annealing furnace. The annealing furnace uses hydrogen gas as the protective gas. Once the hydrogen leaks, it will be very dangerous to pile up in the Tower structure.

So it is necessary to take relevant measures to ensure safety.