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WELDING BASE METAL FOR RECYCLING OF RAILWAY WHEEL AND METHOD FOR RECYCLING OF RAILWAY WHEEL USING THE SAME
WELDING BASE METAL FOR RECYCLING OF RAILWAY WHEEL AND METHOD FOR RECYCLING OF RAILWAY WHEEL USING THE SAME
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机译:铁路车轮回收的焊接母材及使用该方法的铁路车轮回收方法
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摘要
The present invention relates to a welding member for recycling a railroad car wheel and a recycling method using the same. The recycling method comprises steps of (step 1) developing a worn-down railroad car wheel by welding a first welding member to the car wheel and (step 2) forming a surface-hardening layer by welding a second welding member to the developed railroad car wheel, wherein the first welding member comprises 0.05-0.15 wt% of carbon, 0.2-1.0 of silicon, 1.0-2.0 wt% of manganese, 0.6-1.2 wt% of chrome, and the remainder consisting of Fe and inevitable impurities, and the second welding member comprises 0.1-0.25 wt% of carbon, 0.2-1.0 of silicon, 1.0-2.0 wt% of manganese, 1.0-2.0 wt% of chrome, 0.2-1.0 wt% of molybdenum, and the remainder consisting of Fe and inevitable impurities. The welding member is provided to recycle a worn-down railroad car wheel by developing the car wheel to reach the original size of the car wheel, and extend the initial wearing-down time of the recycled railroad car wheel by the step of forming the surface-hardening layer. According to the present invention, the welding member has the similar properties to the railroad car wheel, proper compositions to be used as a welding member for the development of the railroad car wheel, and high hardness to be applied to the surface-hardening layer of the railroad car wheel.
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