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Remove the rust and beheaded screw tips

by:Waxing     2020-11-13
Remove the rust and beheaded screw there are tricks - 2019 03 - 04 Chen Maochun ( Dan is city of shiyan, hubei province aggie) Farm machinery repair, often meet with rust and severed head screw, a lot of machinist were baffled, some damage due to raw twist hard pull screws and parts. The following a few action, might as well give it a try. 1. Remove the rust of the screw, nut. ( 1) The rust of the nut tighten 1/4 turn slowly, back again, again and again tight pine can be wrung out. ( 2) Hammer percussion screw or nut, make rust layer after earthquake scattered or screw out easily. Be careful not to screw tap head deformation. ( 3) With kerosene screw screw out again after 30 minutes. ( 4) With heating burner nut, nut screw out immediately after the heat expansion. ( 5) The screw with some liquid is soaked with 'live wrench can be wrung out easily. 2. Remove the severed head screws. ( 1) If the screw section above parts surface, hacksaw saw slots are available, and then depending on the screw with a screwdriver and screw out size. Also can find a close to severed head screw diameter of the nut set of broken ends in place, from the nut inside the screw nut with a wrench screw out after welding as a body. ( 2) If screw section plane level or below parts and parts, can use a little on the severed head screw drill to drill a hole, a hardened steel nails into cross section is square, turn the screw out with a wrench. Gradually lift, also can use electric welding will break when higher plane welding nut with a wrench on the screw out, also can use electric drill to screw drill out, then tapping screw hole.
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