How to prevent gear deformation during quenching when using high frequency quenching equipment
1. Uniform temperature. If there are multiple temperature differences in different parts of the same workpiece, this temperature difference will generate thermal stress and deform the workpiece.
2. Uniform atmosphere. If the entire part of the workpiece starts carburizing in the same atmosphere, it can well ensure a uniform deep layer, so that the deformation caused by the stress of the tissue after treatment is minimal.
3. Uniform cooling, if the quenching oil can flow through all the workpieces evenly, then each workpiece and parts at different positions of the workpiece can be uniformly cooled, which is the most important measure to prevent the deformation of the quenched workpiece.
4. For those gears that are quenched one by one, the deformation of the final gear after quenching is the largest. In this way, quenching is performed alternately to reduce the deformation of the gear, that is to say, one or two are separated for quenching.