Bearing heat treatment craft formula, treasure!

Clean up of heat treatment of heat treatment of consumption waste water, waste gas, FeiYan, dust, noise and electromagnetic radiation, etc all can form the pollution to the environment. Processing of heat treatment of environmental pollution, implementation of clean heat treatment ( Or green heat treatment) Is prosperous country one of the direction of the heat treatment technology to carry out. In order to reduce SO2, CO, CO2 emissions, dust and coal cinder, have fundamental eradicate using coal as fuel, the use of heavy oil quantity is less and less, in the majority of diesel oil, natural gas is still the ideal fuel. Quench furnace waste heat application has reached a high level, arrester structure optimization and empty - Fuel ratio under the premise of strict control to ensure the reasonable out, NOX and CO to reduce to a minimum; Using gas carburizing and carbonitriding and vacuum heat treatment technology to replace salt bath treatment to reduce FeiYan and CN - Have poison to the water pollution; With water soluble synthetic quenching oil instead of partial quenching oil, vegetable oil using biodegradable alternative local mineral oil to reduce the oil pollution. Fine fine heat treatment of heat treatment of the meaning of two aspects: on the one hand, is based on the use of parts request size, material, structure and application of physical metallurgy knowledge and advanced computer imitation and testing technology, optimization of process parameters, reach the required performance or potential maximize data; On the other hand is abundant guarantee the stability of the optimization process to complete the production mass flow dispersity is small ( Or zero) And the heat treatment distortion is zero. Energy saving heat treatment of scientific consumption and the energy management is an effective application of the most potential energy elements, sets up the professional heat treatment plant to ensure the full consumption, energy to play equipment is the choice of scientific management. In terms of heat treatment energy structure, energy choice time; With application of waste heat, waste heat; With low energy consumption, short cycle of process replacement cycle is long, energy consumption of the process, etc. No oxidation heat treatment by using less maintenance atmosphere heating alternative oxidation atmosphere heating to the accurate control of carbon potential, the controllable atmosphere of nitrogen potential heating, part performance is improved after heat treatment, heat treatment of defects such as decarburization and cracks reduce greatly, finish machining allowance reduced after heat treatment, improved information utility ratio and machining efficiency. Add heat quenching vacuum, vacuum and low pressure carburizing, nitriding, nitrogen and carbon altogether permeability and boriding can significantly improve the life quality, reduce the distortion and progress. Bearing parts heat treatment quality control in the machinery industry is the most severe. In bearing heat treatment in the past 20 years gained great progress. Process formula of heat treatment is a heavy weight, high resolution product quality. Process method should be optimized, equipment performance to control. Paragraphs parameter choose correct, efficient firm should be preferred. Heat insulation and cooling, interlocking don't careless. Steel components are changed, the impact phase change be thinking. Application of calculation parameters, adjusting process secure more applicable. Don't want to distinguish varieties of steel, a more scientific reasonable options. The heating temperature is quite important, holding time to be energetic. High alloy steel section, slow heat guaranteed. Overheating owe hot are bad, just need more scrutiny. Holding time to think, heating conditions and status. A few parts and wall thickness, grasp key to calculate. Oxidation decarburization control, a variety of way can choose. Anaerobic is the key to build the best option is to vacuum. Parts vertical slender, thin wall to prevent deformation. To pay more attention to section mutations, heating cooling to protection. Cooling is greater than the critical value, the martensite is basic. Cooling control to properly, the appropriate check cold cracking. Ensure that hardness is a root, tempering to stress. Temperature adjustment of hardness, different tempering steel grade change. Repeated temper cannot little, stable size performance. Steel is brittle fast cold, is required to ensure that performance to bear in mind. According to the performance of hardness, quantitative relationship can be reduced. Control of science and technology, dedicated more than theory. Accumulate experience summary, for fast and more secure.