Third, the level of manufacturing technology is low. China's bearing industry manufacturing process and process equipment technology development is slow, car processing nc rate is low, grinding automation level is low, there are only more than 200 automatic production lines. Advanced heat treatment technology and equipment that are crucial to bearing life and reliability, such as control atmosphere protection heating, double refining, bainite quenching and other low coverage, many technical problems have not been solved. The research and development of new steel type of bearing steel, the improvement of steel quality, the research and development of lubrication, cooling, cleaning and abrasive tools and other related technologies cannot meet the requirements of the improvement of bearing product level and quality. As a result, the process capability index is low, the consistency is poor, the processing size of the product is discrete, and the inherent quality of the product is unstable, which affects the accuracy, performance, life and reliability of the bearing.
This paper is organized by guangzhou disolek bearing trading co., LTD