Anbao Hydraulic

The high frequency piston rod or induction hardened piston rod is processed by high frequency quenching technology, and then polished by mirror surface. The hardness can reach HRC58-62. Compared with ordinary piston rod, it has the characteristics of friction resistance and corrosion resistance.   High-frequency quenching is mainly used for surface quenching of industrial metal parts. It is a heat treatment method that causes a certain induction current on the metal surface, rapidly heats the surface of the parts, and then rapidly quenches the parts.   Principle of high-frequency quenching:   Put the piston rod with a hollow copper pipe wound as sensor, after the ventilation with high frequency alternating current (ac), formed in the surface with the frequency of the induced current, the workpiece surface or local heating quickly (within a few seconds to heat up to 800-1000 degrees Celsius, the center is still close to room temperature) several seconds after...

 Induction hardening is a type of surface hardening in which a metal part is induction-heated and then quenched. The quenched metal undergoes a martensitic transformation, increasing the hardness and brittleness of the part. Induction hardening is used to selectively harden areas of a part or assembly without affecting the properties of the part as a whole. Induction heating is a non contact heating process which uses the principle of electromagnetic induction to produce heat inside the surface layer of a work-piece. By placing a conductive material into a strong alternating magnetic field, electric current can be made to flow in the material thereby creating heat due to the I 2 R losses in the material. In magnetic materials, further heat is generated below the curie point due to hysteresis losses. The current generated flows predominantly in the surface layer, the depth of this layer being dictated by the frequency of the alternating...