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(1) Clean the heat treatment
Waste water, waste gas, waste salt, dust, noise and electromagnetic radiation etc. on the environment pollution caused by heat treatment is formed. Solve the problem of environmental pollution in the heat treatment, the implementation of clean heat treatment (also known as green heat treatment) is one of the directions developed heat treatment technology development. In order to reduce SO2, CO, CO2, and cinder dust emissions, has been basically put an end to the use of coal as a fuel, the amount of heavy oil is less and less, instead of mostly light oil, natural gas is still the best fuel.

Furnace waste heat utilization has reached a high level, and optimize the structure of the burner air – fuel ratio to ensure strict control of the combustion reasonable premise that NOX and CO reduced to a minimum; use of gas carburizing, carbonitriding and vacuum heat treatment technology alternatives to reduce the salt treatment of waste containing CN- salt and toxic pollution of water; a water-soluble synthetic oil instead of part of quenching oil quenching, using biodegradable vegetable oil instead of part of the mineral oil to reduce oil pollution.

(2) Precision Heat Treatment
Precise heat treatment has two meanings: one is based on the requirements of parts, materials, structure size, the use of physical metallurgy knowledge and advanced computer simulation and testing technology, optimization of process parameters to achieve the required performance or maximize material potential; on the other hand is fully optimized to ensure process stability, product quality dispersion is small (or zero) and heat distortion is zero.

(3) energy-saving heat treatment
Scientific production management and energy efficient use of energy is the most promising factors, a professional heat treatment plant in order to ensure full capacity, full capacity of equipment is scientific management choice. In the heat treatment of the energy structure, preference primary energy; full use of waste heat, waste heat; the use of low energy consumption, long cycle process instead of a short period, large energy-consuming processes.

(4) less non-oxidative heat treatment
By the use of alternative protective atmosphere heated oxidizing atmosphere heated to a precise control of the carbon potential, the potential of the heated controlled atmosphere of nitrogen, after heat treatment improved the performance of parts, such as heat treatment greatly reduced decarburization defects, such as cracks, finishing allowance reduced after heat treatment improve the utilization efficiency of the material and machining. Vacuum heating gas quenching, vacuum or low pressure carburizing, nitriding, nitrocarburizing and boriding, etc. can significantly improve quality, reduce distortion and improve life.

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