The major factor formed low ratio of finished products to processed ingots for forging is to have a big quantity of crop,thus optimizing the forge technology and decreasing the loss of crop,thus the ratio for forging is inereased from 64 47% to 68 87%.

The influence of groove fillet radii of vertical rolls on cropping and margin deformation of slab were analyzed.

To solve problem what hot sliced-head can depart fleetly from hot-mile product line,this paper has designed transporting device about hot saw sliced-head by means of mechanical system design method.

A discussion on implementing conditions and calculation mode for the crop shear mathematical model is focused.

The control of fixed length cutter for high speed flying shear with double rollers is one of the problems which is needed to solve in the processing line for cutting hot plate blank.

Dynamics Parameters Analysis of the Truncate Scissors in the Start/Brake Process;