Stroj za učvršćivanje visoke frekvencije is used for induction hardening of ball screws

Ball screw is a rolling function component that transforms rotary motion and linear motion. It has the functions of smooth transmission and precise positioning. It has been widely used in machine tool transmission, numerical control equipment, automatic control and so on. After quenching, the screw has high hardness and high brittleness, and the correction work is difficult, which is not conducive to mass production of products. Therefore, it is required to strictly control the diameter jump of the screw during quenching. The requirement for the amount of pitch deformation is based on the fact that most of the ball screw production of general enterprises is to open the raceway and then quench.

The basic process of induction hardening of the ball screw surface: For quenching the ball screw raceway, a quenching inductor that matches the size of the screw should be made. Heat treatment process parameters: austenitizing temperature of 860~880℃, after ice-cold treatment In the subsequent processing or use of the ball screw, there is basically no phenomenon that affects the dimensional accuracy due to the transformation of the structure. Through a large number of process tests, to ensure the reliability and stability of the production process. For each series of ball screws, the process test is first carried out according to the structure and depth requirements of the quenched hardened layer, and a process parameter adjustment range is determined. Secondly, in actual production, it must be properly adjusted within the parameter range to make the quenching hardness and pitch deformation of the lead screw meet the requirements.