How to select knife gap of slitting DSS for plate 45~# with high strength is analyzed to assure the shearing quality and to prolong service life and the formula for knife gap regulating has been derived during application.

With development of the industrial control system,programmable logic controller(PLC) is widely used in dividing shear of Baosteel Heavy Plate Mill(HPM),especially in the fields of the main motor control of dividing shear,collection and analysis of PDA data,control of pinch rolls, adjustment control of knife gaps,shearing process control,etc.

,and the knife gap is one of the key factors that effect the cutting qualities.

Optimizing the parameters of shearing lengths,shearing accuracy,blade clearance and pressure plate mechanism,so as to improve the shearing quality of steel plates.

Study of the experimental formula of the blade gap adjustment for rotary cutting shear;

Research on the formula for blade gap regulating of slitting double-sided shear and length shear;

,in cutting process there are some problems,such as,blade gap adjustment is not accurate,automation level of clamp and width adjustment of whole equipment are not high.

The Application of PLC in Control System of the printing machine for gap adjustment;

Through continuous exploration and actual operation, a set of normative methods of engine brake gap adjustment applicable for commercial vehicle service stations is summed up .

Effect of Axial sealing was improved by reforming system and scientific adjusting clearance,thus steam turbine can run more safe,reliably and economically.