The microstructure and mechanical properties of the chain guide frame made of imported and home made materials as well as products meta bainited casting steel were investigated by mears of optical microscop (OM)?X ray phase analysis, scanning electron microscopy (SEM) and mechanical testing.

Not only their adaptability to the bedplate fluctuation andflexinility are not very well, but they are expensive, The article theoretical gives stressanalysis and strengty culatino of the common thain track and the new chain track in the articl

The delivery chains with the jaws operate in the chains orbit,the distribution of orbit will affect the improvement of printing quality and speed greatly,so the design of distribution of delivery chains orbit is very important.

Research and Production of Steel 35MnBM for Caterpillar Chain Link;

The diagram method of polygon flux linkage track is presented,and its software realization method is given out.