链条式电动葫芦也就是我们常说的环链电动葫芦，对于环链电动葫芦而言链条是非常重要的取物装置，环链电动葫芦使用次数越频繁，吊钩的磨损、裂痕就越严重，可不可以通过修补焊接链条来继续使用呢？答案是否定的，原因如下： Chain electric hoist, that is, we often say the link chain electric hoist, chain electric hoist chain for it is very important to fetch device, chain electric hoist use more frequent, hook of wear, cracks becomes more of a problem, can through the repair welding of the chain to continue to use? The answer is no, the reason is as follows: 环链电动葫芦的吊钩是经过铸造后再经过热处理制作而成，整个吊钩即为一体，随着科技的发展，铸造工艺的使用也越来越普遍，整个过程相当于金属内部组织细化和金属纤维的排列，然后再经过热处理消除了内应力和进一步提升金属的机械性能，使得金属内部更加紧凑。 Chain electric hoist hook is made after casting again after heat treatment, the hook is an organic whole, with the development of science and technology, the use of the casting technology is becoming more and more popular, the whole process of metal internal organization elaboration and the arrangement of metal fibre, and then after heat treatment to eliminate internal stress and further enhance the mechanical properties of the metal, metal internal more compact. 而焊接是把金属局部的融化、融合、固化工艺的过程，不是整体的重炉，因而大大降低了金属的机械性能，留下很大的安全隐患。 And metal welding is the partial melting and fusion, the process of curing process, not the whole furnace, thus greatly reduces the mechanical properties of the metal, leave a lot of potential safety problems.