Production of heat exchanger |
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| 申请号 | JP7741778 | 申请日 | 1978-06-28 | 公开(公告)号 | JPS555152A | 公开(公告)日 | 1980-01-16 |
| 申请人 | Hitachi Ltd; | 发明人 | HAYASHI MASAKATSU; TANAKA TAKEO; NATORI TATSUO; AIZAWA TATSUSHI; KOJIMA SHIGERU; CHIAKI TAKAO; | ||||
| 摘要 | PURPOSE:To obtain the heat exchangers of superior heat tansfer characteristics, lightness in weight and small sizes by using the casting molds using the specific resins as a pattern and integrally forming fin plates and porous metals around the zigzag pipe by the special method in producing the heat exchangers. CONSTITUTION:With resins having continous cavities such as foamed urethane or the like as a pattern, casting mold material such as of plaster slurry is filled in the abovementioned cavities and the resins are removed by heating or the like, whereby split film casting molds 6, 7 are formed. The casting molds 6, 7 are incorporated to a heat transfer pipe 1 having beforehand molded to zigzag form in the lengthwise direction of the plural pipes 1 by leaving a clearance 9. Molten metal such as copper or other is filled through vacuum or pressure operation into the holes of the casting molds 6, 7 and the clearances 9. After the metal has solidified, the casting molds are removed. This yields the heat exchanger integrally molded with the fin blocks 2 having the heat transfer pipe 1, fin plates 3, and three-dimensional continuous spaces 4. The fin plates 3 improve the coupling and heat transfer and reception between the blocks 2 and heat transfer pipe 1. It is also possible to perform the removal of the foregoing resin patterns after incorporation to the heat transfer pipe 1. | ||||||
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