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矿用高强度圆环链是煤矿刮板输送机最主要的部件之一,其质量的好坏直接影响到输送机正常运转,是提高输送机使用性能,确保采煤工作面正常生产的关键.随着采煤工作面机械化程度的提高,输送机功率和工作速度的增大,对链条的要求越来越高.国内外各生产厂从选用材质、制造工艺等方面都在不断地进行研究.国际上,一般按机械性能将圆环链用钢分为B、C、D三个级别.目前,世界各工业国都生产C级圆环链,B级已被淘汰,D级正处于研制阶段.我国自1964年开始生产圆环链,先后使用过
Mining high strength circular chain is one of the most important parts of coal scraper conveyor. The quality of mine directly affects the normal operation of conveyor. It is the key to improve the performance of conveyor and ensure the normal production of coal face. With the improvement of mechanization degree of coal mining face and the increase of power and working speed of conveyor, the requirements of the chain are getting higher and higher.Many domestic and foreign factories make continuous research from the selection of materials, manufacturing processes and so on. Internationally, generally, the circular chain steel is divided into three grades of B, C and D according to the mechanical properties.At present, all the industrialized countries in the world produce C-class circular chain, the B grade has been eliminated, and the D grade is in the research and development stage. Since 1964, China began to produce circular chain, has used