In light of ballastless track construction practice of Yangcun Extra-large Bridge in Tianjin Intercity Railway Transportation Project,this paper introduces the lateral chock block construction techniques in CRTS II ballastless track bed plate.

Punching side blade is an important procedure of terminals die, its punching shape,concave die and convex die structure greatly impact the terminals on manufacture quality.

In the course of produce of number one coupled tandem mill,blocks of entry side and exit side of the carrousel double mandrel sleeve tension reel in the exit side of the product line were frequently struck down by dial orientation block.

Approach to calculating method for determining double-drum crop flying shear s knife gap;

Applying mechanical principle,the torsional deformation laws of the drums and the characteristics of knife gap varying along the drum axes during the crop cutting,the function of M-T gears,and the structure characteristics of distributing gears and M-T gears such as positive s.