发明名称 |
Varmeoverföringsrör og fremgangsmåde og redskab til dets fremstilling |
摘要 |
<p>A method of manufacturing a heat transfer tube comprises cutting through at least one ridge (1) formed along the surface of the tube at an angle relative to the tube longitudinal axis (s). The ridge is cut to a cutting depth (t) to form ridge layers (4) and the ridge layers are lifted to form a plurality of protrusions projecting from the surface in a direction that is not perpendicular to the tube longitudinal axis. Some or all of the protrusions may have an at least partially twisted configuration.</p> |
申请公布号 |
DK1516150(T3) |
申请公布日期 |
2008.03.25 |
申请号 |
DK20030741913T |
申请日期 |
2003.06.10 |
申请人 |
WOLVERINE TUBE INC. |
发明人 |
ZOUBKOV, NIKOLAI;THORS, PETUR |
分类号 |
F28F1/42;B21C37/20 |
主分类号 |
F28F1/42 |
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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