SKF bearings is directly related to the subsequent thermal processing quality, which ultimately affect the performance and life of parts, large-scale production and bearing the heat energy consumption and pollution. Bearing heat treatment equipment, heat treatment directly affect the quality of SKF bearings, as well as energy consumption and pollution. In recent years, with the technology, the development trend of the heat treatment technology progress in the following areas:
(1) clean and heat-treated waste water, waste gas, waste salt, oil, and electromagnetic radiation, the formation of environmental pollution. Solutions to the pollution of the environment heat treatment, cleaning and heat treatment (or green heat treatment of) one of the development direction of the heat treatment technology. This atmosphere heat treatment, quenching oil, cleaning equipment, a very high demand.
(2) precision heat treatment process is fully optimized to ensure the stability of product quality, scattered small (or zero), the thermal deformation is zero, in order to reduce the grinding allowance increase productivity, save material. For precise heat treatment must have good temperature uniformity, temperature control accuracy and good cooling quenching agent and stabilizer. Precision SKF bearings, in order to achieve the overall quenching and heat treatment induction hardening can be taken two ways.
(3) the use of new energy-saving insulation materials, heat treatment equipment, to improve energy efficiency; optimize the heat treatment process, improve process yield, full capabilities of the device. SKF bearing manufacturers at this stage to do so, such as waste heat take full advantage of the experiment, waste heat, some manufacturers have used forging ball bearings SKF thermal annealing, low energy consumption, short process cycle replacement cycle is long, energy consumption processes; Bayesian body hardening process to some extent within a certain range and shorter bainite hardening process, replacing the long cycle, the energy consumption and the carburizing process.
(4) less non-oxidizing atmosphere heating the use of alternative heating heated to the oxidation of carbon, controlled atmosphere of nitrogen was heated to the precise control of the potential protective atmosphere processing, to increase performance, defects such as thermal oxidation, decarburization, cracks greatly reduced by the heat treatment member, reduce heat treatment, finishing, improve material utilization and the amount of mechanical efficiency of the left. Vacuum and high temperature quenching, vacuum or low pressure carburizing, nitriding, Nitrocarburizing and Boronizing can significantly improve the quality of the workpiece, reducing distortion, and increased life expectancy.