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渗硼是一项新的化学热处理工艺,近几年来受到普遍重视,并应用在机械制造中。渗硼层具有很高的硬度(HV1200～2000公斤/毫米~2)、热硬性、抗腐蚀性等,它的耐磨性远非一般硬化层可以比拟,因此,最近国内很多单位也开始对渗硼工艺、组织、性能进行了研究和探讨。我们在吸取兄弟单位经验的基础上对低碳钢、20钢、45钢、滚珠轴承钢GCr15、高合金模具钢3Cr_2W_8、Cr12MoV,进行了非电解盐浴渗硼的试验,发现了一些组织异常,并进行了分析,现综述如下:
Boronizing is a new chemical heat treatment process, which has received universal attention in recent years and is used in the manufacture of machinery. Boronizing layer with high hardness (HV1200 ~ 2000 kg / mm ~ 2), thermosetting, corrosion resistance, its wear resistance is far from the general hardened layer can be compared, therefore, many units in China recently began to infiltrate Boron technology, organization, performance were studied and discussed. Based on the experience of our brothers, we conducted tests on boronizing non-electrolytic salt baths for mild steel, 20 steel, 45 steel, GCr15 ball bearing steel, 3Cr_2W_8, and Cr12MoV high alloy die steel and found some abnormalities in the organization, And conducted an analysis, are summarized as follows: