At 18:00 on the evening of July 29th, the 13th session of the Changsha Jianke Electronics Co., Ltd. technical forum training on heat caused by abnormal magnetization of motors was successfully held in the training room on the 5th floor of the R&D building. This course was held by software engineer Zhang Jianquan. Training lecturers, 14 people from the company's technical department and sales department participated in this training, including 11 from the technical department and 3 from the sales department. Through this training, we can provide a new way of thinking when calibrating temperature rise. And share some implementation methods to reduce the temperature rise during the experiment.