| 摘要 |
<p>A method and apparatus for manufacturing heat exchangers for cooling and heating purposes from substantially rectangular tube elements (10) alternating with surface-enlarging members in the form of thin pleated metal strips (11, 12, 13) being advanced, pressed against each other, through a heating zone (18) for soldering together and thereafter discharged through a cooling zone (20) for cooling the solder to fusion temperature, the advancing movement being opposed by a constant retarding force means (26; 29) acting in a direction counter to the direction (A) of advance.</p> |
