Rack application industry there are many, rack many applications in laser cutting machine, gantry truss, etc., these accuracy requirements of the rack is very high, the rack has two main processes of tempering and quenching, in the precision rack, tempering treatment and high-frequency quenching characteristics of what? Let's find out more about it.

The precision rack quenching process puts the rack on the sensor, the cylinder drops, presses the rack, the induction electrode, the rack and the sensor are connected, and the distance between the sensor and the rack can be adjusted according to needs. The longitudinal and horizontal magnetic field heats the tooth surface, the heating speed is fast, and the heating time is controlled. After reaching a certain temperature, the equipment does not stop heating, and automatically spray quenching liquid to the tooth surface to complete the quenching process.

The precision rack hardening process has the characteristics of longitudinal and transverse composite magnetic field induction heating quenching, the heating efficiency and speed are relatively fast, and the hardness distribution of the hardened layer is relatively uniform, the power consumption is small, the tooth edge and the middle part, the root hardening layer can be precisely controlled, and the deformation is small.

The working principle is: when the high-frequency power supply is switched on, the electrical contact is connected to the inductor into a loop, and the sample above the inductor becomes the induction heating body. In this way, the surface of the workpiece will be heated by longitudinal and transverse magnetic fields, so that the rack can be evenly heated. Compared with my previous high-frequency heating, the heating current is concentrated, the density is high, and the heating speed is fast. In this way, the power density of the heated workpiece surface is several times that of the traditional induction heating, and the rack surface can be heat treated with high efficiency and high quality.

For mechanical parts, such as shaft parts and transmission parts, some adjustment of the internal structure is required before or after processing, so in many cases, various processing has become an essential way for these parts. Modulation treatment of precision rack and high-frequency quenching are commonly used methods. So what does this do?

Precision rack modulation treatment: First of all, understand what is the meaning of rack modulation treatment, rack is a combination of quenching and high temperature tempering processing method, this processing method is to adjust the hardness of the rack blank, mild casual processing, this processing is generally carried out before machining, first change some internal properties of the rack blank, and then mechanical processing.

High-frequency quenching treatment of the rack: high-frequency quenching treatment is the hardening treatment of the rack surface. Generally for carbon structural steel with carbon content of more than 35%, such as 45 #, 40Gr and other materials. General rack factory after high-frequency treatment, hardness will meet the requirements of use. The hardness after such modulation treatment cannot reach the hardness of quenching treatment, but the knowledge of high-frequency quenching treatment is for the tooth surface.