五环钩头链是矿井运输车上用的,它的作用同火车车厢的挂钩很相似。这种链,在运输过程中的负荷是沉重的,因而要具有很高的强度。在锻造的五环钩头链还没有正式生产之前,这种链的环是銲接起来的。由于銲接处强度低,经常发生断链事故,造成很大损失。为了保证安全生产,我们决定锻制500马力捲扬机上用的五环钩头链。 Five ring hook chain is used mine conveyor, and its role is very similar to the train car hooks. This chain, the load in the transport process is heavy, and therefore have a high intensity. The ring of the chain is welded before the forged five-link hook-and-loop chain has not yet been formally produced. Due to the low strength of the welding place, it often happens chain scission accident, resulting in great loss. In order to ensure safe production, we decided to forge 500-horsepower winch with a five-ring hook chain.