发明名称 |
PROCESS FOR PRODUCING FROGS OF RAILWAY SWITCHES |
摘要 |
To manufacture frogs or rail sections in the wheel-running region of points with a highly wear-resistant wheel-running surface of a hardenable steel of composition C 0.01 to 0.05 % Si 0.01 to 0.2 % Mn 0.01 to 0.2 % Co 0 to 15 % Mo 1.5 to 6 % Ni 7 to 20 % Ti 0.1 to 1 % Cr O to 13 % Al 0 to 0.2 % B 0 to 0.1 % Zr 0 to 0.1 % the wheel-running surface is applied by explosive plating or electron beam welding or compound-rolling to a base body of readily weldable steel, especially a steel having not more than 0.24 % of C, not more than 0.04 % of P and S, not more than 0.65 % of Si and not more than 1.7 % of Mn. |
申请公布号 |
ZA8707690(B) |
申请公布日期 |
1988.04.19 |
申请号 |
ZA19870007690 |
申请日期 |
1987.10.13 |
申请人 |
VOEST-ALPINE AKTIENGESELLSCHAFT |
发明人 |
FRANZ ROTTER;ROBERT PIRKER;ERNST SCHROTTER |
分类号 |
E01B7/00;B23K15/00;B23K20/08;C22C38/00;C22C38/50 |
主分类号 |
E01B7/00 |
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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