ALUMINIUM CHASSIS HAVING HEAT INSULATING FOAM FILLED IN HOLLOW PORTION, ITS MANUFACTURING METHOD AND APPARATUS, AND METHOD FOR CONTROLLING THE APPARATUS

摘要

The present invention provides an aluminium chassis (19) having heat insulating foam (20) filled in a hollow portion, its manufacturing method and apparatus, and a method for controlling the apparatus, and more particularly to an improvement wherein the heat insulating foam (20) is filled in the hollow portion of the aluminium chassis (10) for window and doors principally in order to improve an efficiency of heat insulation and sound absorption. Especially, the present invention provides a method for manufacturing an aluminium chassis (10) having heat insulating foam (20) filled in the hollow portion comprising: filling preliminary granular foam obtained from a first foaming of foamable plastic granules, such as EPS or EPE, by forming negative pressure in the hollow portion of the aluminium chassis (10); and maturing by heating the aluminium chassis (10) filled with the preliminary granular foam at the temperature ranged between 110-140 DEG C for 1 to 7 minutes to fill the heat insulating foam (20) in the hollow portion.