矿用三环链在煤炭生产运输中,起着连接矿车使其成列的作用。因此,其质量好坏直接影响运煤量及安全运输。过去生产三环链一直是模锻边环,手工锻接中环。因其质量差、效率低,后改为模锻边环,电弧焊接中环,但质量仍不够稳定。有些单位采用整体锻造工艺生产三环链,虽然质量好,但工艺复杂,难于推广。我厂针对三环链的质量问题,在生产中进行了一系列工艺改进。现已采用锻造边环,闪 Mine tri-link chain in the production and transportation of coal, which plays the role of connecting the car into a column. Therefore, the quality of its direct impact on the amount of coal transport and safe transportation. In the past, the production of tricyclic chains has always been forging edge ring, hand forged Central. Because of its poor quality, low efficiency, later replaced by forging edge ring, arc welding ring, but the quality is still not stable enough. Some units use the overall forging process of the production of three-ring chain, although the quality is good, but the process is complex and difficult to promote. I plant for the three-ring chain quality problems in the production of a series of process improvements. Has been used forging edge ring, flash