| 摘要 |
The present invention relates to a heat exchange apparatus which is utilized as a cooling apparatus of a hydraulic fluid for the operation of hydraulic machinery and which is a tube (20)-embedded heat exchange apparatus comprising a shell (10) through which a thermal fluid such as the hydraulic fluid passes; and the tubes (20) allowing a coolant to pass therethrough, and installed inside the shell (10). The heat exchange apparatus according to the present invention is formed as follows: the tubes (20) are coupled to waste composite sheets (12) which are metallic sheets cut or bent into predetermined shapes; the waste composite sheets (12) are assembled into a box; and synthetic resin coating layers (11) are formed on the outer surfaces of the waste composite sheets (12) so that the shell (10) of the heat exchange apparatus can be formed. According to the present invention, the durability and the performances of the heat exchange apparatus can be secured, the productivity of the heat exchange apparatus can be improved, and the manufacturing costs of the heat exchange apparatus can be reduced, wherein the performances include pressure resistance and air tightness. |
