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Spline shaft high-frequency quenching process
Abstract: This paper introduces the principle of quenchingof spline shaft, principle of the induction heatingequipment selection and variable power. The spline shaftincrease the hardness and abrasion resistance standard,after testing found that, strong toughness and fatigue life of high frequency quenching has higher. The carburizing quenching can replace the traditional.
Spline shaft frequency quenching
Author: Henan Chao Feng Electrical Engineer Li Ming male in heat treatment industry has published more than 20 articlescontact telephone 13837472250
Spline shaft is a kind of mechanical transmission, the key to peace, circle half key, oblique key role, all is the transmission of mechanical torque, can keep axis synchronous rotating.
A quenching test
For a long time, shaft splines are high-frequency quenching process to quench oil, but oil quenching and high costs,and because of the physical characteristics of the oilcooling is slow, the workpiece will take a long time toreach the effect. But with the high frequency quenchingmachine, not only by water instead of the high cost of oil,and heating and cooling speed, speed is very fast, has greatly increased the manufacturers benefit.
Two rapid cooling would affect the spline shaft deformation
In general, a cooling medium speed more quickly formed a greater stress, resulting in hardened gear deformation andcracking tendency. But in time, we test, spline shaftadopts water cooling water cooling quenching. Part of the austenite transformation of cooling speed not to martensite transformation decrease. Force and resistance stressrelieving effect on part of air cooling water-cooling heat of formation, it can be fully guaranteed to increase theshaft hardness, reduce the amount of deformation, the induction heating equipment technical requirements.
Three compared carburizing furnace, resistance furnace,what advantage
We in Henan super Feng electrical equipment limitedfunding, the model for the WH-VI-80KW models and 80KWresistance furnace and 80KW carburizing furnace, the heat treatment compared. It was concluded that the high frequency furnace, heating speed is about 2 times as much as the other two, the hardness testing found that, almostnot much difference between, so that, high frequency furnace can be more time and energy saving, environmental protection and energy saving, is the first choice of a large factory.