机械工业广泛采用中碳钢及中碳低合金钢制造零件,当这类零件淬火时,水淬易开裂,油淬则往往达不到硬度要求,尤其是对于形状复杂和尺寸较大的零件,问题更为突出。所以寻求冷却速度介于水油之间的淬火介质,使淬火的零件既能得到要求的硬度,又能减少变形及避免开裂,这是热处理工艺上的一个有待解决的问题。 一机部机械院机电研究所与北京内燃机总厂合作,研制成功适于中碳钢及中碳低合金钢零件淬火用 Mechanical industry is widely used in the production of carbon steel and low carbon steel parts, when such parts quenching, easy to crack water quenching, oil quenching are often less than the hardness requirements, especially for complex shapes and larger parts, The problem is more prominent. Therefore, the search for cooling speed between the oil and water quenching medium, so that the hardened parts can get the required hardness, but also reduce deformation and avoid cracking, which is heat treatment process on a pending issue. A mechanic mechanical and electrical Institute Institute and Beijing Internal Combustion Engine Plant cooperation, developed successfully for medium carbon steel and low carbon steel parts quenched with