Some tips in the use of quenching machine tools

In the processing of fully automatic quenching machine tools, some small tricks can effectively improve and increase work efficiency. For example, some people say that adding salt to water can double the cooling rate, because after brine quenching, the cooling rate is fast , and there will be no cracking and uneven quenching. It can be said that salt is the most ideal coolant for hardening. When using it, the proportion of salt added is 10% by weight.

If the water contains impurities, it is more suitable as a quenching liquid than pure water. This is because some solid particles are added to the water, which helps to clean the surface of the workpiece and destroy the vapor film, which increases the cooling rate. It can prevent the occurrence of quenching spots. Therefore, in the quenching treatment, it is a very important concept to use the quenching technique of mixing water without legend。