关键词: 气体软氮化；渗碳淬火；感应淬火；精益生产

Abstract: In 2025, electric energy accounts for 30% of industrial terminal energy consumption, and thermal processing is an important part of industrial electricity consumption. Coupled with the factors of technology, equipment and management, the processing cost remains high. In the fierce market competition, energy saving and consumption reduction have become the necessary trend of sustainable development of enterprises. The existing heat treatment process is conservative, the machining allowance is large, the equipment management is backward, and the production plan is discontinuous, which leads to low equipment utilization and serious energy consumption waste. Combined with the present situation, the concept of lean production is introduced into the heat treatment production process, and a low-cost heat treatment production mode is formed through four aspects: reducing machining allowance, equipment transformation, production planning and operation combination.

Key words: gas soft nitriding; carburizing and quenching; induction quenching; lean manufacture