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在各机器制造部门,要使用为数众多的牵拉式荷重绞链。从制造工艺的观点看,链环是绞链中最复杂的一个单元件。链环的形状虽多种多样,但在牵拉式荷重绞链中,最流行的是П—形截面的链环。一方面链环配合面的尺寸精度极高,且要有一定的强度,另一方面,链环两侧壁的造型精致,但强度有限。根据上述两方面因素,对制造过程及保证所需的使用特性带来一定的困难。链环的材料,一般用高强度钢(38XC、40X、40XC、12 2、35、40),
In the machinery manufacturing sector, to use a large number of pull-type load hinge. From the manufacturing process point of view, the chain is the hinge of the most complex single component. Although the shape of the chain varied, but in the pull-type load hinge, the most popular is the Π-shaped cross-section of the ring. On the one hand, the dimensions of the mating surface of the link ring are extremely high, and have a certain degree of strength. On the other hand, the shape of the two side walls of the link ring is exquisite but of limited strength. According to the above two factors, the manufacturing process and guarantee the required characteristics of the use of certain difficulties. The material of the link is generally made of high-strength steel (38XC, 40X, 40XC, 12 2,35,40),