What is the method of taking out the hardware screws?

We all know that the use of screws is relatively widespread, in various industries, are used to, which is sufficient to show that the prospects for the development of this industry, or quite good, and screws are divided into many kinds, hardware screws is one of them, then the hardware screw removal method is how? Here let the screw factory editor to tell us.

    1, first remove the sludge on the surface of the broken screw fracture with the center cannon will be the center of the fracture cannon, and then use an electric drill with a 6-8 mm diameter drill in the center of the fracture cannon hole drilling, pay attention to the hole must be drilled through. After the hole is drilled through, remove the small drill bit and replace it with a drill bit of 16 mm in diameter, and continue to enlarge the hole of the broken bolt and drill through it.

    2, take the diameter of 3.2 mm or less welding rod using small and medium current in the hole of the broken bolt from the inside to the outside of the overlay welding the beginning of the part of the entire length of the broken bolt can be taken half. Start surfacing arc not too long to avoid burning through the outer wall of the broken bolt. After welding to the upper surface of the broken bolt and then continue to weld a 14-16 mm diameter cylinder with a height of 8-10 mm.

    3, after the good stacking welding with a hand hammer hammer at its end to make the broken head bolt along its axial vibration. Due to the heat generated by the previous arc and the subsequent cooling plus the vibration at this time will make the threads between the broken bolt and the body loose.

　4, careful observation when found after knocking there is a trace of rust from the fracture leak can be taken M18 nut set in the welded stud and will be welded together. 

　5, after welding together slightly cool while hot with a plum wrench glove on the nut left and right twisting back and forth can also be twisted back and forth while tapping the nut end face with a small hand hammer so that the broken bolt can be removed.

　6, after taking out the broken bolt with a suitable wire hammer will rack inside the wire buckle processing once to remove rust and other debris in the hole.

   The above information is the relevant information brought by the screw factory.