Tips for non -standard screws:
1. First, remove the center of the sludge on the surface of the broken screw of the broken screws. To death the center of the cross section, then use an electric drill with a diameter of 6-8 mm to drill the hole at the center of the section. Note that the holes must be drilled. After drilling through the hole, remove the small drill, replace it with a drill with a diameter of 16 mm, and continue to expand the holes of the broken bolt and drill through.
2. Take the electrode with a diameter of 3.2 mm. Use small and medium currents in the drilling hole of the broken bolt from the inside out for the start of the bolt of the bolt of the bolt. Long to avoid burning the outer wall of the broken bolt. Welded to the upper end surface of the broken bolt, and then welded with a cylindrical body with a diameter of 14-16 mm high 8-10 mm.
3. After the pile welding, use the hand hammer to hammer the end surface to vibrate the fault bolt along the axial direction. Due to the calories generated by the arc and the subsequent cooling, plus the vibration at this time will cause the broken bolt and the thread of the body and the body Loose between.
4. Carefully observe that when the trace rust is leaked from the fracture after the knocking, the M18 nut cover can be used on the stack of the pile welding and welded the two.
5. After welding, slightly cool with plum blossoms with plum blossoms, twist back and forth on the nuts, you can twist back and forth while tapping by a small hand hammer.
6. After removing the bolted bolts, use the appropriate hammer to process the wire buckle in the rack to remove the rust and other debris in the pore.