Wrench hardening by medium frequency induction heating machine

A wrench is a commonly used installation and removal tool. Hand tools for turning bolts, screws, nuts, and other open or socketed fasteners whose threads hold bolts or nuts tightly by the principle of leverage. The wrench is usually formed with a clamping handle at one or both ends of the handle to apply an external force to the handle to twist the bolt or nut to hold the opening or sleeve of the bolt or nut. When in use, an external force is applied to the shank in the direction of thread rotation, so that the bolt or nut can be twisted. Some parts of the wrench need to withstand huge friction during the working process, so we often use a medium frequency induction heating machine to quench the wrench.

Quenching is also called "dipping fire", that is, the workpiece is heated to a certain extent and the hot workpiece is dipped in the medium to meet the requirements. The purpose is mainly to improve the hardness and service life of the workpiece. Workpiece quenching generally has very high requirements on speed. The wrench adopts medium frequency induction heating machine for quenching heat treatment, and a wrench can be quenched in a few seconds. The quenching speed is quite fast, which avoids the oxidation and decarburization of the workpiece, and the quenching is quite fast. uniform. Even better, when the medium frequency induction heating machine quenches the wrench, it can perform overall quenching heat treatment on the wrench according to the needs, and can also perform local quenching, so the power consumption is less and the deformation of the workpiece is small, which people are happy to see.

The main circuit of the medium frequency induction heating machine adopts new power devices such as IGBT and MOSFET, which are basically characterized by integration and modularization, and equipped with a new type of output transformer independently innovated. The power of the equipment is greatly improved, the energy consumption is greatly reduced, and the reliability is maintenance-free. Development has been unanimously recognized by everyone.