The heating time of the high-frequency quenching process is very short, and the workpiece is quickly heated to the quenching temperature, and then quickly freezes. The high-frequency quenching workpiece has already begun to freeze before it loses its uniform austenite structure. Therefore, the high temperature at this time Frequent quenching is close to a kind of incomplete quenching. Therefore, the entire structure must be quenched and tempered before high-frequency quenching. After quenching, tempering can be carried out at 500~650℃. Why does the high-frequency quenching matrix mechanism need to be quenched and tempered?
In order to avoid losing the uniform quenching structure, quenching and tempering treatment must be used as a pretreatment for high-frequency quenching, so as not to lose the uniform sorbite structure. The main method of tempering is to improve the mechanical properties of the steel with good strength and plasticity. The method of the high-frequency induction heating machine quenching and tempering process is to quench first, and the quenching measurement is: Ac3+30~50℃ for hypoeutectoid steel; Ac1+30~50℃ for hypereutectoid steel; alloy steel can be slightly improved by half than carbon steel.
Quenching and tempering generally refers to quenching + low-temperature tempering, which is a heat treatment process to obtain tempered sorbite. Because, this is why we carry out tempering, we hope that our equipment buyers must pay attention to the scope of the department!
en 
cn 
jp 
ko 
de 
es 
it 
ru 
pt 
vi 
th 
pl 
GS-ZP-1200
