It is well known that the color of die steel changes when the temperature is low. When it is heated to about 600 ℃ during heat treatment, it will appear slightly dark red. With the increase of temperature, the color of die steel gradually changes from dark red to bright red → orange red → orange yellow → light red. We can roughly judge the temperature according to the color of die steel, If it is engaged in steel smelting, forging, heat treatment and other old master generally has a strong ability in this area.

每个季度都会对品质部同仁进行热处理方面的培训及考核，因为我们知道模具钢性能优势和热处理是密不可分的，热处理没做好可以直接将好材料报废，严重影响开模时间，直接导致客户损失.

Every quarter, we will conduct training and assessment on heat treatment for the colleagues of quality department, because we know that the performance advantage of die steel is closely related to heat treatment. If the heat treatment is not done well, the good materials can be directly scrapped, which seriously affects the mold opening time and directly leads to customer losses

在热处理厂均高薪聘请技术娴熟的老员工（经验丰富，反应迅速，不马虎），严格做好真空热处理，能够高质量的完成正火、退火、固溶热处理、时效处理、淬火、回火、碳氮共渗、调质处理等处理工艺，为客户提供可靠及的热处理服务。

In the heat treatment plant are high salary to hire skilled old staff (experienced, quick response, not sloppy), strict vacuum heat treatment, can complete normalizing, annealing, solid solution heat treatment, aging treatment, quenching, tempering, carbonitriding, quenching and tempering treatment process, to provide customers with reliable and high quality heat treatment services.