Hardware screw manufacturers tell you what are the hardware screw removal methods?

Some things, the use of a long time will appear quality problems, or a variety of problems, often bring us late trouble, hardware screws is one of them, in the use of a long time, there will be the cause of rust, resulting in the destruction of the product itself, this time we had to take it out, so what are the methods to take out? Here let the hardware screw manufacturer's editor to tell you.

 1. First remove the sludge on the surface of the broken stainless steel screw fracture with the center cannon will be the center of the fracture cannon then use an electric drill fitted with a 6-8 mm diameter drill bit 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 16 mm diameter drill bit, and continue to enlarge and drill through the hole of the broken bolt.

 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 broken stainless steel bolt can take half of the entire length. The arc should not be too long to avoid burning through the outer wall of the broken bolt when starting to weld. After welding to the upper surface of the broken bolt and then continue to weld out a 14-16 mm diameter cylinder 8-10 mm high.

 3. After the good stacking welding with a hand hammer hammer at its end to make the broken head bolt along its axial vibration. The heat generated by the electric arc and the subsequent cooling plus the vibration at this time will make the thread between the broken bolt and the body loose.

4. Carefully observe when you find that there is a trace of rust leaking from the fracture after knocking, you can take the M18 nut set on the welded stud and weld the two together.

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

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

 The above is the hardware screw manufacturer to tell you the hardware screw removal method, as long as you follow these points, you will soon be able to take it out, I hope that my short article, can bring help to you.