2019 Volume 64 Issue 8 Pages 455-461
Quenching is very an important process to get high hardness and toughness of steel parts and tools. However, ununiformity of temperature during rapid cooling often results in undesirable distortion and residual stress, in addition cracking. Oil quenchants are used for quenching of steel parts and tools to avoid these problems. Cooling characteristics of oil quenching are controlled by selecting of base oil and additives. This article will introduce the cooling power and technology of quenching oils.
