发明名称 |
INNER RIBBED TUBE AND METHOD |
摘要 |
A heat exchanger inner spiral ribbed tube and method of manufacture therefor for use in making a refrigerator condenser or a refrigerator evaporator. The tube has an annular wall having an inner surface. The inner surface has a plurality of inner spiral ribs, each having a spiral angle. The spiral angle is between 0 degrees and 90 degrees; and is 45 degrees in the described embodiment. The tube making method includes the steps of swaging a plain plate between a plain roller and a grooved roller to make a ribbed plate; then forming seam welding the plate at the longitudinal adjacent edges thereof to make the inner spiral ribbed tube.
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申请公布号 |
CA2058127(C) |
申请公布日期 |
1995.05.16 |
申请号 |
CA19912058127 |
申请日期 |
1991.12.19 |
申请人 |
HIGH PERFORMANCE TUBE, INC. |
发明人 |
KEYES, JOHN M. |
分类号 |
B21C37/06;B21C37/08;B21C37/20;F28F1/40;(IPC1-7):F28F1/40 |
主分类号 |
B21C37/06 |
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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