一般货车上都有很多鍊条(圆料直径10公厘,椭圆长径38公厘,短径19公厘)。这种鍊条过去我们是这样制造的: 一个链条有十几个链环,三个人一组,用这种方法锻好后套起来,工作效率是很低的。后来我们车间改进了一套工具,连煨弯带套环一火完成,减少了冷套环的工序。这套工具的结构像图1、2那样:图1是链环煨弯工具, General trucks have a lot of chains (round material diameter 10 mm, oval length 38 mm, short diameter 19 mm). This kind of chain used to be made in the past: a chain of more than a dozen links, a group of three, in this way forging a good set up, the work efficiency is very low. Later, our workshop to improve a set of tools, and even simmer with a curved loop to complete a ring, reducing the cold collar of the process. The structure of this tool like Figure 1, 2: Figure 1 is a chain bending simmer tool,