Wheel steel capable of resisting out-of-round, wheels and preparation method of wheels

Abstract

The invention discloses a wheel steel capable of resisting out-of-round, wheels and a preparation method of the wheels, and belongs to the technical field of rail transit wheels and a preparation method thereof. The wheel steel capable of resisting out-of-round comprises the following components of, in percentage by weight, 0.56%-0.60% of C, 0.25%-0.35% of Si, 0.70%-0.80% of Mn, 0.20%-0.25% of Cr,0.10%-0.20% of Ni, less than or equal to 0.008% of P, less than or equal to 0.008% of S, and the balance Fe and inevitable impurity elements. The wheel steel capable of resisting out-of-round, the wheels and the preparation method of the wheels aim to overcome the defects that in the prior art, the rail transit wheels are prone to out-of-round problems, and the wheel steel capable of resisting out-of-round, the wheels and the preparation method of the wheels are provided, the wheel steel capable of resisting out-of-round, the wheels and the preparation method of the wheels can remarkably improve the hardness and the circumferential hardness uniformity of the wheels, are favorable for reducing the out-of-round probability of the wheels, and can prolong the turning mileage and service lifeof the wheels.

Description

technical field [0001] The invention relates to the technical field of a rail transit wheel and a preparation method thereof, and more specifically relates to an anti-lost-round wheel steel, a wheel and a preparation method of the wheel. Background technique [0002] In recent years, rail transit wheel out-of-round has become a prominent and common problem in the operation of high-speed rail, ordinary passenger and freight vehicles, and urban rail vehicles. Out-of-round rail transit wheels will increase the vibration and noise of the vehicle, affect the running quality of the vehicle, and even cause damage to other parts of the vehicle and track components due to resonance, directly posing a threat to driving safety. [0003] In the 1990s, during the operation of German ICE high-speed trains, it was found that harmonic wear (later called polygonal wear) appeared in the rolling circle of the wheel. According to the survey statistics, the overall wheel circumference is mainly ...

AI Technical Summary

Problems solved by technology

From the end of 2016 to the present, Guangzhou, Suzhou, Nanning and other subway companies have successively reported that the phenomenon of 8-9 polygonal wear is common in the use of subway wheels, and it is becoming more and more prominent, which seriously plagues the operation of subway vehicles.

This plan is a good exploration of rail transit wheels and their preparation methods, but there is still room for further improvement, and the research on rail transit wheels and their preparation methods in the industry has never stopped

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