发明名称 |
SIDE FRAME AND BOLSTER FOR A RAILWAY TRUCK AND METHOD FOR MANUFACTURING SAME |
摘要 |
A method for manufacturing a bolster of a railway car truck includes providing a drag portion and a cope portion of a mold. In a main body section of the mold, a parting line that separates the drag portion from the cope portion is substantially centered between portions of the mold that define brake window openings in sides of the bolster. One or more cores are inserted into the mold and a molten material is poured into the mold to thereby case the bolster.
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申请公布号 |
US2012291662(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201113109880 |
申请日期 |
2011.05.17 |
申请人 |
GOTLUND ERIK;MAKARY VAUGHN |
发明人 |
GOTLUND ERIK;MAKARY VAUGHN |
分类号 |
B61F5/00;B22C1/22;B22C9/22;B22D31/00 |
主分类号 |
B61F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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