发明名称 |
FREMGANGSMAADE TIL FRIKTIONSSVEJSNING AF STAAL MED STOEBEJERN MED KUGLEGRAFIT |
摘要 |
An improved friction-welding process for effecting a joint between steel and nodular graphite-containing cast iron by using (i) a short friction-generating time so as to minimize diffusion of carbon into steel and (ii) an elevated forging pressure so as to effect a quantitative ejection of carburized melt but avoid formation of a weld laminate, is provided, as well as a nodular graphite-containing cast iron of grade 40.3 S, suitable for use in friction-welding and comprising about 280-320 graphite nodules per mm2, 280-300 ferrite grains per mm2 and a spherulite proportion of about at least 95% by weight of the graphite precipitations. |
申请公布号 |
DK162746(B) |
申请公布日期 |
1991.12.09 |
申请号 |
DK19870006089 |
申请日期 |
1987.11.19 |
申请人 |
WALTER HUNDHAUSEN GMBH & CO. KG;KUKA SCHWEISSANLAGEN + ROBOTER GMBH |
发明人 |
FARRENKOPF, WOLFGANG;GRUENAUER, HEINRICH;MENZINGER, MANFRED;HIRSCH, JOACHIM VON;OPITZ, REINHARD |
分类号 |
B23K20/12 |
主分类号 |
B23K20/12 |
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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