十年来,随着中国汽车工业的快速发展,对于控制淬火变形的要求越来越高。如同发达国家发生过的一样,中国也开始进入分级淬火油用量明显增长的时期。实践表明,通过适当的选择油品、正确的预防性维护,分级淬火油可以大量减少淬火变形,获得尺寸稳定,满足中国汽车工业对于控制齿轮淬火变形的严格要求。 In the past ten years, with the rapid development of China’s automobile industry, the requirements for controlling quenching and deformation have become higher and higher. As happened in developed countries, China has also begun to enter the period when the amount of quenching oil used for classification has obviously increased. Practice shows that proper choice of oil, correct preventive maintenance, classification of quenching oil can greatly reduce the quenching deformation, to obtain dimensional stability, to meet China’s automobile industry for the control of gear quenching deformation of the strict requirements.