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Material selection of spiral bevel gear

The selection of gear material is very important for qualified and high-quality spiral bevel gear, which is mainly based on the load borne by the gear, the accuracy requirements of spiral bevel gear and the speed. The load is measured by the unit compressive stress on the tooth surface...

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Pre heat treatment of gear blank of one speed gear

Through the process test of two different pre heat treatments on the deformation law of the parts after final carburizing and quenching, and the analysis and Research on the deformation law, the following conclusions are drawn: (1) The deformation of gear with isothermal annealing of gear blank after carburizing...

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Uneven carburizing layer depth of gear

The depth of carburizing layer on the gear surface is uneven, resulting in discontinuous performance of different parts. The weak area is damaged first, and then the whole gear is damaged, which seriously affects the service life of the gear. 1. Cause analysis (1) During solid carburizing, the temperature...

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Excessive carburization of gear surface

Due to improper treatment and excessive carburization, massive and network carbides will appear on the surface of carburized gear. When in use, the plastic deformation capacity of gear will be reduced, the impact resistance will be weakened, the bending fatigue performance of tooth root will be reduced, the tooth...

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Development of gear heat treatment equipment

In addition to the old standard well carburizing furnace, deep carburizing well furnace, sealed box multi-purpose furnace, single and double row continuous carburizing automatic line, rotary kiln and other furnace types can also be produced in China. In recent years, these furnaces have made great progress in terms of...

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Deep carburizing of heavy duty gears

Although the deep carburizing of large heavy duty gears improves the bearing capacity and prolongs the service life, it still has the disadvantages of long production cycle, high cost and large deformation. Therefore, the deep nitriding process is being studied abroad to replace the deep carburizing process. ZHY gear...

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