Quenching heat treatment

In the heat treatment industry, what are the misunderstandings about quenching and heat treatment? Today Xiaobian will come to talk with you about the misunderstanding of quenching and heat treatment.vacuum-furnace-for-metal-smelting

1. The workpiece after quenching and heat treatment is not cold to room temperature, and can not be tempered?vacuum-heat-treatment-process

Some people think that after quenching heat treatment, the tempering heat treatment process can not be entered before cooling to room temperature. In fact, many kinds of steels, especially low and medium carbon steels, have higher martensite transformation end point than room temperature. When they are cooled to room temperature, they tend to crack. After quenching heat treatment, they can be transferred to tempering heat treatment process as soon as possible.

2. Quenching and heat treatment of the workpiece must be tempered with temperature?plasma-nitriding-furnaces

It is not advisable to use this method. The temperature before tempering after quenching should be determined according to the martensitic transformation point of steel grades. In order to prevent quenching cracking, we can not speculate on it. Tempering with temperature is adopted in a general way.vacuum-induction-melting-furnaces