Dongguan hardware screw processing methods which use several
Release time：2017-10-30 19:39viewing count：
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1. Dongguan hardware screw processing first clear the broken screw on the surface of the sludge with the center of the center of the gun will be killed and then drill with a diameter of 6-8 mm drill bit in the center of the drill hole drill hole, pay attention to the hole must Drill through. After the hole is drilled, remove the small drill bit and replace it with a 16 mm diameter drill. Continue to expand the hole of the bolt and drill it through.
2. Take the diameter of 3.2 mm below the use of small and medium current in the broken bolt in the drilling from the inside to the outside of the surfacing welding site to take off the beginning of the length of the bolt can be half of the beginning of the arc when the arc is not too long So as to avoid breaking the outer wall of the broken bolt. Surfacing to the upper end of the broken bolt and then continue to pile out a diameter of 14-16 mm high 8-10 mm cylinder.
3. After welding with a hand hammer hammer its end of the end of the broken bolt along its axial vibration.As the previous heat generated by the arc and the subsequent cooling coupled with the vibration at this time will break the bolt and the body of the thread Between the resulting loosening.
4. Dongguan metal screw processing carefully observed when the percussion after a trace of rust from the fracture at the time to take the M18 nuts in the welding of the stigma and the two will be welded together.
5. After welding with a cool hot plum wrench on the nut around the back and forth twist can also be wiped back and forth with a small hammer hitting the end of the nut so that you can remove the bolt off.
6. After removing the bolt, use the appropriate wire hammer to process the thread in the rack to remove rust and other debris.
