(1) Wastewater, waste gas, waste salt, dust, noise and electromagnetic radiation generated by the heat treatment of heat treatment will cause environmental pollution. To solve the environmental pollution problem of heat treatment, the implementation of clean heat treatment (or green heat treatment) is one of the development directions of heat treatment technology in developed countries. In order to reduce the emission of SO2, CO, CO2, dust and cinder, coal has been basically eliminated as a fuel, and the use of heavy oil is becoming less and less. Most of the light oil is used, and natural gas is still the most ideal fuel. The waste heat utilization of the combustion furnace has reached a high degree. The optimization of the Burner structure and the strict control of the air-fuel ratio ensure that the NOX and CO are reduced to a minimum under the premise of reasonable combustion; the use of gas carburizing, carbonitriding The vacuum heat treatment technology replaces the salt bath treatment to reduce the pollution of waste water and CN-toxic substances to the water source; the water-soluble synthetic quenching oil is used to replace part of the quenching oil, and the biodegradable vegetable oil is used to replace part of the mineral oil to reduce oil pollution.
(2) Precision heat treatment Precision heat treatment has two meanings: on the one hand, according to the use requirements of the parts, materials, structural dimensions, using physical metallurgical knowledge and advanced computer simulation and detection technology to optimize the process parameters to achieve the required performance or Maximize the potential of the material; on the Other hand, fully guarantee the stability of the optimized process, achieve a small dispersion of product quality (or zero) and heat treatment distortion to zero.
(3) Energy-saving heat treatment Scientific production and energy management are the most promising factors for effective energy utilization. It is a scientific management choice to establish a professional heat treatment plant to ensure full-load production and full use of equipment capabilities. In the heat treatment energy structure, priority is given to primary energy; waste heat and waste heat are fully utilized; and processes with low energy consumption and short cycle are used to replace processes with long cycle and high energy consumption.
(4) Less oxidation-free heat treatment is heated by a protective atmosphere heating instead of an oxidizing atmosphere to control the carbon potential and nitrogen potential in a controlled atmosphere. The properties of the parts after heat treatment are improved, and heat treatment defects such as decarburization and cracking are greatly reduced. The subsequent finishing allowance is reduced, which improves material utilization and machining efficiency. Vacuum heating, gas quenching, vacuum or low pressure carburizing, nitriding, nitrocarburizing and boronizing can significantly improve the quality, reduce distortion and improve life.
Dehydration Machine,Centrifugal Dewatering Machine,Industrial Dehydrator Machine
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