&机械设备修理时常会遇到一些螺栓锈死而难以拆 下,即使用煤油渗透和火焰加热等方法也无济于事。为 此,我们采取钻孔法,如对M20的六角螺栓,先在螺栓 中心上用手电钻钻一个约φ8的通孔,并用手锤锤击六 角头,使螺栓与机壳及机壳座之间原锈死的“关系”松 动,然后用扳手旋之,即可取出。 Mechanical and mechanical repair often encounter some bolt rust and difficult to remove, that is, using kerosene infiltration and flame heating methods are of no avail. To this end, we take the drilling method, such as the M20 hex bolts, first in the center of the bolt with a hand drill drill a hole about φ8, and hammer the hex head with a hand hammer so that the bolt and the chassis and chassis Between the original rust of the “relationship” loosening, and then spin with a wrench, you can remove.