Tap broken in the workpiece how to do? The 10 method you choose

　 1, pour some oil, with a sharp cut child out at the fracture surface slowly reverse, from time to time to pour iron.
This is a commonly used method in the workshop, but the hole diameter is too small or too long to break the tap is not suitable, but can be
By trying.
2, in the tap broken cross section of a handle or six angle nut, and then gently reversed.
This method of welding some trouble, or the same, the smaller diameter of the tap is not appropriate.
3, the use of special tools: broken tap extractor, the principle is the workpiece and taps are connected to the positive and negative electrode, the middle of the electrolyte, leading to the workpiece to the wire
Cone discharge corrosion, and then the auxiliary clamp and remove, less damage of the inner hole.
4, the use of electric pulse destroyed, electric spark or wire cutting can be, the hole can be hole and steel wire screw sleeve.
This method is more simple and convenient, as for the degree of concentricity is not to be considered, unless you have a direct impact on the quality of the threaded hole.
5, to do a simple tool while inserting the broken tap section of the chip slot slot, carefully pull out the reverse, such as the use of square tenon broken wire
The 2 nuts are screwed on the cone, and the steel wire (the number of the root is the same as the number of the taps) is inserted into the hollow groove of the breaking tap and the nut, and then the pull rod is pulled out according to the exit direction
Square tenon, take off the tap.
The main idea of this method is to cut the thread through the slot, the use of steel wire, it is best to make a special steel wire broken wrench. Of course，
If there is such a broken wire in the workshop, it is better to be a wrench.
6, nitric acid solution can corrode the high speed steel wire cone, and does not scrap the workpiece.
7, using acetylene flame burner to tap or annealing, and then use the drill to drill, the drill hole is smaller than the diameter of the drill, to alignment
Heart, prevent screw bad drilling, hole drilling into a flat or square punch with the wrench after a tap.
8, if you can not get rid of broken wire extractor, with a little bit of drill holes continue to expand, when the aperture close to the screw, some silk will not be able to live off
Come on, take the rest of the thread, and then fix it with a tap.
9, if the screw broken wire is exposed, or broken bolts are not strict requirements, as well as for hand saw blade can, can seam, even the shell also saw,
And then use a flat screwdriver.
10, after much effort N, although the screw is taken out, but when the hole is also wasted, simply drilling a larger hole tapping, if the original screw
Wire position and size restrictions, can also play a big screw in, or directly welded tapping, then in the center of the screw drill tapping hole.