High frequency quenching equipment -- What is the cause of uneven hardness after high frequency quenching?
What is the cause of uneven hardness after high frequency quenching? There are generally the following points:
1. There may be some problems with the workpiece material, which may contain many impurities.
2. Unreasonable determination of process parameters during quenching.
3. It is also the most likely that the unreasonable production of the induction ring will cause the induction ring to be different from the workpiece, resulting in uneven heating temperature and different hardness of the workpiece.
4. Check whether the outlet holes of cooling waterways and induction rings are smooth, otherwise uneven hardness will also be caused.
A set of high-frequency quenching equipment in production also appears the phenomenon of uneven hardness after high-frequency quenching in the trial process. When the quenching hardness reaches above 50 degrees, the hardness is uniform. When the quenching hardness is below 50 degrees, the hardness is not uniform.
On 2018-08-08 11:45:46
