发明名称 |
COVER HAVING A WEAR-RESISTANT SURFACE AND METHOD FOR THE PRODUCTION THEREOF |
摘要 |
The invention relates to a cast-iron cover fitted with at least one traffic-bearing surface which in turn comprises at least segment-wise a wear-resistant layer constituted by chilling the cast iron. Preferably the wear-resistant layer exhibits a Brinell hardness larger than 275 HBW but less than 350 HBW. A method of the invention furthermore relates to manufacturing a cast-iron cover, first manufacturing a shaped body. Then an activation layer is made within the shaped body. Cast iron is poured-in in a way to be at least partly chilled at a contact surface with the activation layer. |
申请公布号 |
US2012263527(A1) |
申请公布日期 |
2012.10.18 |
申请号 |
US201013501579 |
申请日期 |
2010.10.12 |
申请人 |
KUENZE MANFRED;WEIS STEFAN;MERKL PETER;MEIERGUSS LIMBURG GMBH |
发明人 |
KUENZE MANFRED;WEIS STEFAN;MERKL PETER |
分类号 |
E02D29/14;B22D19/00 |
主分类号 |
E02D29/14 |
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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