发明名称 |
HIGH SPEED PIPE LINING METHOD AND APPARATUS |
摘要 |
<p>High speed pipe lining is accomplished by supporting a length of pipe to be lined between spindles in a lathe-type apparatus and rotating the pipe at a speed sufficient to afford a G-force of the order of 10-15 G's. A rather fluid concrete mixture comprising gap-graded sand is introduced into the interior of the rotating pipe using a cantilevered trough. The rotational speed of the pipe is then increased substantially to afford a force of the order of 35-50 G's, and the pipe is subjected to high amplitude axial vibrations for a period of time of the order of one minute or less. The resulting concrete lining is highly compacted, quite dense and hard, and has a smooth surface.</p> |
申请公布号 |
CA1236350(A) |
申请公布日期 |
1988.05.10 |
申请号 |
CA19860505488 |
申请日期 |
1986.03.27 |
申请人 |
AMERICAN CAST IRON PIPE COMPANY |
发明人 |
SNOW, WILLIAM E.;WARREN, THOMAS R. |
分类号 |
B05C7/00;B05D7/00;B05D7/22;B28B19/00;B28B21/58;(IPC1-7):B28B19/00 |
主分类号 |
B05C7/00 |
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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