在工模具热处理中,常用低温碱浴作为碳素工具钢制件的分级、等温淬火介质。当工件处于高温区时,这种介质具有较强的冷却能力,可保证工件获得高的硬度和淬硬深度以及较好的综合性能,而在低温区时,冷却能力缓慢,可降低组织转变应力,从而有效地减小变形和避免开裂。此介质多用于形 In the mold heat treatment, commonly used low-temperature alkaline bath as carbon tool steel parts grade, isothermal quenching medium. When the workpiece in the high temperature zone, this medium has a strong cooling capacity to ensure that the workpiece to obtain high hardness and hardened depth and better overall performance, and in the low temperature zone, the cooling capacity is slow, can reduce the organizational stress transformation , Thus effectively reducing the deformation and avoid cracking. This medium is mostly used for shape