Research and Application of Casting Process of K6 Swing Bolster Steel Casting for Railway Freight Cars
A one-piece splicing refractory material three-way gating system was designed to address the technical issues of surface sand inclusion and misrun during the trial production process of railway freight car K6 swing bolster cast steel parts,and solved the problems of surface sand inclusion caused by high-temperature steel liquid turbulence and sand washing during the pouring processes,and improved the pouring speed and overall yield of casting.A dedicated exhaust bracket was designed on the side bearing box of the swing bolster to solve the problem of misrun of the side bearing box caused by poor venting.The new process has improved the quality of castings and saved repair costs.
K6 swing bolsterZG25MnCrNithree-way gating systemexhaust bracketcasting process
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