Why is water spraying used for cooling large steel sections after hot bending? Isn’t quenching a concern?
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Why is water spraying used for cooling large steel sections after hot bending? Isn’t quenching a concern? Is it to fix the shape? ?
The elbow pipe video is here. . . Spray water treatment – does it have a cooling procedure? As long as the subsequent mechanical property tests are passed, that’s fine.
This water spray is used to cool and set the material as quickly as possible; cooling ordinary carbon steel in this way poses no problem, but for alloy steels, etc., re-heat treatment is necessary.
Is it to relieve stress? I don’t quite understand.
The carbon content in steel sections isn’t very high, so they are less likely to crack. By using water spray for rapid cooling and shaping, production capacity can be increased and deformation reduced; it must have more advantages than disadvantages that this approach is adopted
Stress relief should be achieved through slow cooling