Screw processing manufacturers will take you to learn how to take high-strength bolts after they are broken?

In the process of using bolts in construction, bolts often break. The usual practice of maintenance and construction personnel is to use pliers to clamp outward from the broken part of the bolt along the opposite direction of the bolt screwing in, or use a wrench to take out the broken bolt with the help of a broken bolt extractor. Although these methods can take out the broken bolts, due to the unevenness of the bolt section and the inability to control the uniform torque during operation, the threads of the bolt holes will be damaged, causing the newly installed bolts to be loose and loose, causing the bolts to break again. Therefore, we have obtained a reliable method for taking out the broken bolt without causing the thread deformation of the bolt hole in the operation practice. Let's learn together with screw processing manufacturers!

First make a square iron, the method of making square iron is: according to the drilling on the broken bolt Diameter, calculate the size of the square iron; the calculation formula is α=R√2, then take a piece of round steel (according to the size of the actual broken bolt, the diameter is smaller than the broken bolt), drill the inner hole (inner hole) on the drilling machine The diameter of the hole is smaller than that of the broken bolt), which is made into a sleeve. When taking the bolt, put the sleeve at the broken position of the bolt, and clamp it with a hand vise in order to facilitate the operation, and then select a drill bit smaller in diameter than the sleeve made, and insert the electric drill into the inner hole of the sleeve to drill (using a drill). This method of drilling is to ensure that the drilled hole is not skewed, without damaging the thread of the bolt hole, and at the same time, the torque can be evenly controlled to unscrew the broken bolt). After drilling the hole, use the pre-made square iron to drive it into the hole, and then screw it in the opposite direction (with tool pliers), and then the broken bolt can be removed smoothly without damaging the thread.