Carburizing direct quenching process for large-scale wind power gear/gear shaft
A technology for wind power and gears, which is applied in the field of carburizing and direct quenching process of large wind power gears/pinion shafts. It can solve problems such as the inability to meet large-scale and high-efficiency production requirements, long equipment working hours, and complicated routes, and achieve cost reduction. The effect of reduced length and reduced amount of retained austenite
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[0016] The present invention will be described in further detail below with reference to the drawings and specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0017] A carburizing and direct quenching process for large-scale wind power gears / pinions, the process steps are:
[0018] (1) Strong infiltration: carry out strong infiltration in a carburizing furnace, the temperature of the infiltration is 910-970℃, the time is 8-72 hours, and the C1 is 0.9-1.2%C;
[0019] (2) Diffusion: Diffusion in the carburizing furnace, the diffusion temperature is: 910-970℃, the time is 2-8 hours, and the C2 is: 0.65-0.9%C
[0020] (3) Low temperature heat preservation: heat preservation in the carburizing furnace, the heat preservation temperature is: 620-700℃, and the time is 2-8 hours;
[0021] (4) Heat preservation before oil extraction: heat preservation temperature: 810-850℃, time is 2-8 hours,
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