矿用圆环链广泛用于刮板输送机、刨煤机、滚筒采煤机及其它机械牵引链。对于直径26 mm 以上矿用圆环链,国内普遍采用23MnNiCrMo54钢制造,生产工艺流程为下料→加热→编环→焊接→去刺→一次拉伸→热处理→二次拉伸。在生产过程中,废品主要出现在焊接工序,约2%的链环存在 Mine ring chain is widely used in scraper conveyor, plow, drum shearer and other mechanical traction chain. For the diameter of more than 26 mm mine circular chain, the domestic commonly used 23MnNiCrMo54 steel manufacturing, production process for the blanking → heating → braiding → welding → pricking → a stretch → heat treatment → the second stretch. In the production process, the waste mainly appears in the welding process, about 2% of the links exist