On heat treatment for the recovery property of cold-formed carbon steel heads
Thread Content
There are two elliptical heads made of 16MnDR with dimensions DN1000X14. The design requirements specify that if cold forming is used, heat treatment to restore the material’s properties is necessary; whereas if hot forming is used, re-normalizing is required. Which method ensures better quality?
The thickness of the end cap is not great; as long as it is manufactured in accordance with the process requirements, the quality will be ensured. Carbon steel end caps are generally formed by hot forming
The key issue is that hot forming destroys the normalized state, and re-heat treatment is required
If you already know it’s in a damaged state, what more is there to ask?
Since it’s in a damaged state, it definitely needs to be heat-treated again.
Thermofolding is better than cold forming, and the part can be restored to its service condition through normalizing heat treatment; this is what makes the cost of manufacturing end caps higher.
Regardless of the processing method used, it is necessary to produce product prototypes for verification.
Well, I also think it’s a safer approach, but the boss says it’s costly
The key issue is that the heat-treated specimens used to assess recovery performance are not very representative, and there are concerns that problems may arise
If there is concern that the test specimen might have problems, why isn’t there any fear that the equipment might have issues? There are some things that must be done. Even if a million people stand in my way, I will go! !