在没有无氧化加热设备的工厂,为提高模具热处理质量,最近我们采用了RMG-900热处理保护膜(电子工业部研制)在箱式电炉中加热,其防氧化效果很好,处理后的零件表面能保持金属的本色,淬火后工件硬度可提高HRC 1～3,能有效地提高模具质量,特别是对一些没有加工余量或返修的工模具提供了可靠的方法。与通常采用的装箱法、涂敷法等相比具有投资少、 In the absence of non-oxidation heating equipment factory, in order to improve the quality of the mold heat treatment, recently we used RMG-900 heat treatment protective film (developed by the Ministry of Electronics Industry) in a box-type electric furnace heating, the oxidation effect is good, the surface of the treated parts Can maintain the true nature of the metal, the hardness of the workpiece after quenching can improve HRC 1 ~ 3, can effectively improve the quality of the mold, especially for some without machining allowance or repair tool provides a reliable way. Compared with the commonly used packing method, coating method and the like, there is less investment,