矿用圆环链在制造过程中,一般在最后要进行第二次拉伸,对圆环链进行形变强化处理。经过形变强化后,链条的某些机械性能一试验负荷下的最大伸长率将明显改善。矿用圆环链经二次拉伸后,为什么会使链条的承载能力提高呢?众所周知,一般金属材料经预先塑性变形后,它的屈服极限将有所提高,且塑性变形量越大,屈服强度提高的幅度也越大,这就是所谓形变强化作用。对 Mine ring chain in the manufacturing process, usually in the final second stretch, the ring chain deformation hardening. After the deformation strengthened, some of the mechanical properties of the chain of the maximum elongation under test load will be significantly improved. After the second round of mine chain ring stretch, why the chain will increase the carrying capacity of it? As we all know, the general pre-plastic deformation of the metal material, its yield limit will be increased, and the greater the amount of plastic deformation, yield The magnitude of the increase in strength is also greater, which is known as deformation strengthening. Correct