What is the purpose of quenching the mold steel? The main purpose of quenching is after austenitizing, the alloying elements in the dissolved austenite as much as possible are all converted to martensite so that after tempering at an appropriate temperature, carbides precipitated and precipitated are returned to the martensite. Body tissue, to achieve the required comprehensive mechanical properties and wear resistance.
In the heat treatment process, quenching is a very important task, and its success mainly depends on the heating rate, the quenching temperature, the holding time and the subsequent cooling method.
What is the purpose of quenching the mold steel? For the heating speed, the temperature rise during heating is too slow, the workpiece is easily oxidized, decarburized, the service life is short, and the cost is high. However, if the temperature rises too much, a temperature difference will occur between the surface and the center of the mold. The greater the temperature difference, the greater the thermal stress, and thus the greater the possibility of deformation cracking.
This article is edited by Zhongshan Huashi Fushun Special Steel Technology Department. Please call for more details.
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