What Are The Disassembly Techniques Of Standard Parts?

Soak in kerosene for 20-30 minutes. Hammer around the nut to loosen the rust layer, then twist it out. If it still cannot be removed, use a blowtorch to heat the nut. When the nut is heated and expanded and the threaded standard part is slightly heated, the nut can be quickly unscrewed.

If it is a threaded slip, an enlarged hole can be drilled in the threaded hole, the thread can be modified, and then a step bolt with one end enlarged and the other end maintained the original diameter can be prepared. The original screw hole is enlarged and then a nut with internal and external thread is machined. The outer diameter is matched with the enlarged screw hole, the inner screw hole is the same as the original diameter, and the outer thread is coated with 502 glue. When the diameter of the severed screw is large and relatively loose, the enlarged screw hole is screwed in again.

The thread can be removed slowly with a hand hammer and a flat chisel in the opposite direction of the thread. If the broken end is higher than the end face, file it into a square and turn it out, or turn the welding nut at the broken end.

If the broken end is slightly higher than the end face or there is no outcrop, drill holes in the broken end, and then wedge into the multi-edge hardening steel shovel to pull out; Reverse thread Remove the severed end with the reverse screw. When it is allowed to expand the screw hole, the broken screw can be drilled out with a drill bit and the thread can be expanded again.

In order to prevent the deformation of Shenyang standard parts due to uneven stress, the screw group should be symmetrically removed diagonally. When removing, first loosen the screw 1 to 2 buckle, and then remove one by one. For square or round parts, disassemble symmetrically diagonally or at the center of the circle.