发明名称 |
WAERMEAUSTAUSCHERELEMENT UND VERFAHREN ZU SEINER HERSTELLUNG |
摘要 |
A heat exchanger for solar collector apparatuses comprises two metal layers (10, 11) abutting each other and at least one metal pipe (12) for a heat-carrying medium arranged between the layers. The metal layers are cold-welded together on either side of the pipe to form heat-conveying fins and the pipe is cold-welded to at least one of the metal layers. The exchanger has a greater total goods thickness at the pipe than at the fins to allow a comparatively high heat-carrying medium pressure. (FIG. 1). For manufacturing the heat exchanger two metal strips and a metal pipe are continuously fed between two rolls, of which at least one is provided with a groove corresponding to the pipe. The roll pressure is selected so that the metal strips and the metal pipe are subjected during cold rolling to a thickness reduction of at least 60% during the passage between the rolls, so that the strips and the pipe are cold-welded together. |
申请公布号 |
DE2902640(A1) |
申请公布日期 |
1979.07.26 |
申请号 |
DE19792902640 |
申请日期 |
1979.01.24 |
申请人 |
GRAENGES ALUMINIUM AB |
发明人 |
KENNETH OLSSOH,GOERAN BERTIL;TORSTEN WILSON,GUNNAR |
分类号 |
B21D53/04;B21D53/08;F24J2/26;(IPC1-7):F28F3/02 |
主分类号 |
B21D53/04 |
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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