Heat treatment process for a railway axle truck

The present invention relates to a railway wagon axle production technologies, and particularly relates to a process for the heat treatment A railway truck axles. The heat treatment process, comprising the steps of: normalizing said axle for the first time, the first normalizing the holding temperature higher than the Ac3 temperature the axle shaft 100 ℃ ~ 120 ℃, the axle uniform austenite; the second axle be normalized, the normalized second soak temperature above Ac3 above the axle shaft 10 ℃ ~ 30 ℃, the axle austenitizing forming fine austenite grains; tempering said axle, said axle to eliminate stress. Normalizing the first soak temperature employed in the heat treatment process of the present invention, the axle more uniform morphology, thereby improving the sound-transmitting properties of the axle, but also ensure a uniform refinement of ferrite and pearlite and good mechanical properties.