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Reading volume:4 发表时间:2020/1/4 9:09:56
To reduce the grinding problem of the gear surface, it is necessary to fundamentally reduce the generation of grinding heat dissipation and accelerate the release of grinding heat dissipation.Through analysis, we know that we can take some measures to reduce the impact of grinding heat on gear friction.
1. Grinding wheel
In the process of selecting the grinding wheel, because the hardness of the coarse grinding wheel is soft, the grinding surface is easy to produce, blockage will cause a great obstacle, and a lot of heat will be generated during the grinding process.In the fine grinding process, a high-hardness fine grinding wheel must be used. The smoothness of the grinding surface must be ensured to ensure the consistency of the size.
2. Grinding conditions
When the grinding wheel generates heat, it generates heat proportionally in approximately a unit time, which can avoid grinding damage, appropriately reduce the cutting amplitude and reduce the power of power generation, so as to ensure the grinding accuracy.The choice of the grinding allowance should be determined according to the specific situation. As the productivity increases, the grinding damage should be minimized.
3. Cutting fluid
In the process of gear grinding, cooling control is a very critical link.The cooling must be complete and sufficient, and the flow rate and pressure must be controlled within the range to achieve complete cooling.
4. Carburized layer carbon concentration
As the surface carbon concentration continues to increase, the grinding performance will decrease.The carbides need to be evenly distributed on the surface, and the average particle diameter should be less than 1μm; the carbides are generally distributed in a spherical or granular shape, and it is forbidden to produce network or horn-shaped carbides.Strict control of surface carbon concentration can reduce deformities and lesions on hot surfaces.
Through the above improvement measures, the appearance of gear grinding damage can be changed.At the same time improve the product quality of gears.
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Renqiu Ever-Power Machinery Parts Manufacturing Co., Ltd.