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Maximize the service life of the bearing

Source: Time:2019-02-05 11:20:56 frequency:

Bearing heat treatment is directly related to the quality of follow-up processing, resulting in the final impact on the use of parts and life, while bearing heat treatment is bearing large energy consumption and large pollution.

Bearing heat treatment is directly related to the quality of follow-up processing, resulting in the final impact on the use of parts and life, while bearing heat treatment is bearing large energy consumption and large pollution. Bearing heat treatment equipment directly affect the quality of bearing heat treatment, as well as energy consumption and pollution. In recent years, with the progress of science and technology, heat treatment technology development trend is mainly reflected in the following aspects:
    (1) clean heat treatment heat treatment production of waste water, waste gas, waste salt, waste oil and electromagnetic radiation will cause pollution to the environment. Solve the heat treatment of environmental pollution problems, the implementation of clean heat treatment (or green heat treatment) is one of the direction of heat treatment technology development. This is a high demand for heat treatment, quenching oil and cleaning equipment.
    (2) Precise heat treatment Precise heat treatment is to ensure the stability of the optimization process, to achieve product quality dispersion is very small (or zero), heat treatment distortion is zero, reduce the amount of grinding to improve production efficiency and save material. To achieve precision heat treatment must have a good furnace temperature uniformity, temperature control accuracy, and quenching agent good cooling and stability. To achieve the precise heat treatment of bearings can go the whole quenching and induction hardening two roads.
    (3) energy-saving heat treatment selection of new insulation materials to improve the heat treatment equipment, energy efficiency; optimize the heat treatment process, improve the production process, give full play to the equipment capacity. At present, the bearing manufacturers are doing this test, such as the full use of waste heat, waste heat, and some manufacturers have used forging waste heat for bearing parts of the ball annealing; low energy consumption, short cycle process to replace the long cycle, Of the next bainitic quenching process to a certain extent, within a certain range, with a shorter bainite quenching process to replace the long cycle, large energy consumption carburizing process.
    (4) less non-oxidative heat treatment by the use of protective atmosphere heating instead of oxidizing atmosphere heated to precise control of carbon potential, nitrogen potential of the controlled atmosphere heating, heat treatment after the performance of parts improved heat treatment defects such as oxidation, decarburization and cracks greatly reduced , After the heat treatment to reduce the amount of finishing, improve the utilization of materials and machining efficiency. Vacuum heating gas quenching, vacuum or low pressure carburizing, nitriding, nitrocarburizing and boronizing can significantly improve the quality of the workpiece, reduce distortion and improve life.

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