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Stainless steel forging process, the "annealing" process needs points to note

Author: ComeFrom: Date:2014-06-28 16:59:06 Hits:929
In the process of forging steel, the "annealing" is an essential process. Of course, we should use the annealing furnace, bright annealing finished stainless steel is mainly used for heat treatment under protective atmosphere. Different performance requirements of different bright annealing furnace, heat treatment industry are not the same. 
300 series austenitic stainless steel tube typical heat treatment process is the solution treatment. The key to this is the rapid cooling of the heat treatment process, from 1050 ~ 1150 ℃, proper insulation for a short time, so that the carbide dissolved in austenite, and then rapidly cooled to below 350 ℃. 
400 series ferritic stainless steel tube heating temperature is mostly used to obtain slow cooling annealing to soften tissue. Usually segmented quenching return fire manner. 
In the process of annealing furnace annealing also have certain requirements, must pay attention to the protection of the annealing furnace. Annealing furnace hydrogen as protective gas. Once the hydrogen leak, rising accumulate in the tower building structure will be very dangerous. So be sure to take relevant measures to ensure safety.
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