选用“渗碳-扩散”型渗碳工艺可以缩短生产周期,但在控制时间、滴量、炉压的操作上各家不尽相同,我们在长期实践中摸索出一种行之有效的方法,可使生产周期缩短1/4～1/3。一、渗碳排气结束后,由于钢表面含碳量极低,需要大量的活性碳原子。在这一阶段我们最大限度地提高碳势,使炉气碳势远远超过预定表层碳浓度,让钢 Selection of “carburizing - diffusion” type carburizing process can shorten the production cycle, but in the control of time, volume, furnace pressure on the operation vary, we worked out in the long-term practice of an effective method, Can shorten the production cycle 1/4 to 1/3. First, carburizing After the end of the exhaust, due to the low carbon content of the steel surface, requires a large number of activated carbon atoms. At this stage we maximize carbon potential, so that the carbon potential of the furnace far exceeds the predetermined surface carbon concentration, so that steel