On the method of sodium cyanide quenching
If you want to do something good, you must use its tools. In the industry of castings, the method of sodium cyanide quenching is especially crucial. Sodium cyanide is strong and effective, and it can be quenched to make the utensils tough and abnormal.

The first environment to perform the technique of sodium cyanide quenching. Choose an open and well-ventilated place to prevent the accumulation of toxic gases. Fireworks must be banned around, and sodium cyanide is prone to highly toxic hydrogen cyanide gas when exposed to open flames and hot topics, which endangers life.

The operation is also to clean the utensils first, remove their dirt and rust, and make sure the surface is smooth. Sodium cyanide is placed in a special crucible to slow down the heat, and it can only be used when it melts into a liquid and has a clear color. At this time, hold the utensil with long pliers and slowly immerse it in the sodium cyanide melt, so that the whole body is soaked without leaving any traces. The time of soaking should be determined according to the material, size and thickness of the utensil, and cannot be generalized.

After soaking, quickly take out the utensil and immerse it in cold water or oil for rapid cooling. This sudden cooling step is crucial, which can make the tissue structure of the utensil dense and the hardness greatly increased. When it is suddenly cold, you should also pay attention to prevent the utensil from cracking due to sudden cooling.

The method of sodium cyanide quenching, although it can make tough utensils, but its poison drama, the operator must be cautious. Every step is in accordance with the rules, and there should be no slight negligence. In this way, the utensils can be obtained and the safety of the person can be guaranteed.