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横梁和卫板,均属型钢轧机的导卫装置,它们互相配合,安装好坏与否,直接影响轧件是否按规定方向和位置进、出孔型。横梁安装的高低对卫板的影响甚大。以下卫板为例,若横梁安装高,造成下卫板头低尾高,钢轧出孔型有向上串动的趋势,使得钢出导卫装置后稳定性降低,易扭转而造成低温轧制,对设备及人身安全危害较大。若横梁安装低,则造成下卫板头高尾低,使得下卫板的头部圆弧接触处与孔槽底部有一间隙,当钢质不良或低温轧制时,容易造成卡导卫、撞导卫。如若孔型磨损老化及轧机跳动过大时,
Beam and health board, are steel mills guide guard, they cooperate with each other, installed or not, directly affect the rolling direction and position according to the provisions of the hole type. The level of beam installation has a great impact on the health board. The following health board, for example, if the beam is installed high, resulting in low head low guard plate, the steel rolling out of the string has a trend of upward movement, making the steel guide guard after the reduction of stability, easy to reverse and cause low temperature rolling, Equipment and personal safety hazards. If the beam is installed low, then the lower tail plate caused by high tail low, making the head of the lower guard plate circular arc contact with the bottom of the slot has a gap, when the steel is poor or low temperature rolling, easy to cause the card guide Wei, hit the guide guard. If the hole wear aging and mill beating too large,