Stainless steel screw broken solution and magnetic reasons
Stainless steel screws will break when the screws are used. What if the stainless steel screws are broken? Why are stainless steel screws magnetic? Let's take a look at the solution and magnetic reasons for the broken stainless steel screws. I hope to help everyone.
What should I do if the stainless steel screw is broken?
1. First remove the sludge on the surface of the broken screw and use the center 铳 to smash the center of the section. Then use a drill with a diameter of 6-8 mm to drill the hole at the center of the section. Note that the hole must be drilled through. After the hole has been drilled, the small drill bit is removed and replaced with a drill bit of 16 mm in diameter, and the hole of the broken bolt is continuously enlarged and drilled through.
2. Take the electrode with a diameter of 3.2 mm or less and use medium and small current to break the half of the entire length of the bolt from the inside to the outside of the broken bolt. The starting arc should not be too long. So as not to burn through the outer wall of the broken bolt. After welding to the upper end of the broken bolt, continue to weld a cylinder with a diameter of 14-16 mm and a height of 8-10 mm.
3. After surfacing, hammer the end face with a hammer to make the broken bolt vibrate along its axial direction. The heat generated by the arc and the subsequent cooling plus the vibration at this time will cause the bolt and the body thread. There is a looseness between them.
4. Careful observation When a trace of rust is found to leak from the fracture after tapping, the nut of M18 can be placed on the stud of the surfacing and the two can be welded together.
5, after welding, slightly cool, hot with a plum wrench on the nut, twisted back and forth, can also be twisted back and forth with a small hand hammer to hit the end of the nut so that the broken stainless steel bolt can be taken out.
6. After removing the broken bolt, use a suitable wire hammer to machine the thread in the frame to remove rust and other debris.
Why are stainless steel bolts magnetic?
1. Stainless steel bolt is a kind of versatile stainless steel. It is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability). In order to maintain the corrosion resistance inherent in stainless steel, steel must contain 18%. The above chromium, more than 8% nickel content, 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard;
2. because the stainless steel after cold rolling cold rolling their molecular arrangement will change with micromagnetic, but this is only physical, chemical has not changed.
The above is about the solution to the broken stainless steel bolts and the reason for the magnetic reasons. I hope everyone can understand the solution to the broken stainless steel screws and the reasons for the magneticity, which will help everyone.
