How to take out broken bolts with explosion-proof ring wrench
ring wrench refers to a wrench with two ends in a ring shape, and the two ends are not the same size, which is easy to see in real life. The rotating bolt part and the handle part are staggered when viewed from the side. This structure is convenient for disassembling bolts and nuts assembled in the recessed space, and can provide operation clearance for fingers to prevent scratches. How to use a ring wrench to take out the broken bolts?
1, break the sludge on the surface of the bolt's broken head, use the center spear to kill the center spear of the section, then use the electric drill to install a drill bit with a diameter of 6-8mm to drill the hole in the center of the section, pay attention to the hole to be drilled through, after the hole is drilled through, remove the small drill bit, replace it with a drill bit with a drill bit with a diameter of 16mm, and continue to expand the hole with a hole with a hole with a hole with a hole.
2, take the welding rod with a diameter of less than 3.2mm, use small and medium current to surfacing from inside to outside in the drilling hole of the broken bolt, take half of the whole length of the broken bolt at the beginning of surfacing, start the arc should not be too long, so as not to burn through the outer wall of the broken bolt, surfacing welding to the upper end face of the broken bolt, and then continue to surfacing welding a diameter of 14-16mm, cylinder 8-10mm high.
3. After surfacing welding, hammer the end face with a hand hammer to vibrate the broken head bolt along its axial direction. Due to the heat generated by the previous arc and the subsequent cooling, coupled with the vibration at this time, the broken bolt will loosen the thread of the machine body.
4. Observe carefully. When a trace of rust is found to leak from the fracture after knocking, the nut can be sleeved on the surfacing stud and the two can be welded together.
5, slightly cool after welding, twist the nut left and right with a ring wrench while it is hot, or knock the end face of the nut with a small hand hammer while twisting back and forth, so that the broken bolt can be taken out.
After taking out the broken bolt with a ring wrench, use a suitable wire hammer to process the screw thread in the frame again to remove rust and other sundries in the hole.
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