发明名称 |
Method and apparatus for casting a hollow-core concrete product |
摘要 |
A method and apparatus are disclosed for casting prestressed hollow-core concrete products, in which method concrete mix is fed onto a casting bed with the help of feeder augers having a diameter smaller than the height of the hollow-core cavities being formed. The invention is characterized by having the concrete mix flowed along slanted leading-end surfaces of the core-forming mandrels so as to form cavities larger than the cross section of the feeder augers.
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申请公布号 |
US2005173818(A1) |
申请公布日期 |
2005.08.11 |
申请号 |
US20040513913 |
申请日期 |
2004.11.10 |
申请人 |
SEPPANEN AIMO;JARVINEN LASSI |
发明人 |
SEPPANEN AIMO;JARVINEN LASSI |
分类号 |
B28B1/08;(IPC1-7):B29C39/00 |
主分类号 |
B28B1/08 |
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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