Understand the principle of hardening processing of gears

　　Gear is a transmission device, it is an important part of many machine tools, numerical control equipment, without gears, machine tools, heat treatment equipment can not operate normally.From this, we can understand that the processing of gears cannot be sloppy. If gears are made sloppily, their drawbacks will be exposed during actual use.Let's share with you nowGear hardeningThe related principles of, help everyone to understand the part well, so that it is also helpful for us to use it, let's take a look!

　　Under normal circumstances, the workpiece is placed in the inductor (coil) when the gear is quenched. When an alternating current of frequency is passed through the inductor, an alternating magnetic field is generated around it.The electromagnetic induction of the alternating magnetic field produces a closed induced current in the workpiece ─ eddy current.The distribution of the induced current on the cross-section of the workpiece is very uneven, and the current density on the surface of the workpiece is very high and gradually decreases inward. This phenomenon is called the skin effect.The electric energy of the high-density current on the surface of the workpiece is converted into heat energy, and the temperature of the surface is increased, that is, surface heating is realized.The higher the current frequency, the greater the current density difference between the surface and the interior of the workpiece, and the thinner the heating layer.After the temperature of the heating layer exceeds the critical point temperature of the steel, it is rapidly cooled to achieve surface quenching.Don't underestimatePrecision gearIf the processing work cannot be handled properly, it will affect its use effect.

　　In summary, everyone should have an understanding of the principle of gear quenching processing. During the processing, the current, current frequency and density of the inductor are all standardized, and not arbitrarily expanded.Therefore, if you want to buy gears, but do not understand the principle of gear processing, you may be fooled by the merchants. Welcome to Long Gear to buy products!