| 摘要 |
<p>A method for continuously foaming a forming material comprises the steps of processing a forming material extending in a lengthwise direction thereof while suppressing the forming material from being crosslinked and foamed; inputting the continuous forming material between metal belts of a continuous pressure crosslinking unit comprising a pair of metal belts which are spaced apart from each other by a predetermined distance and conduct orbital motions in opposite directions in order to suppress the forming material from being foamed and heating means for continuously supplying heat to at least one selected from the metal belts; continuously crosslinking the continuous forming material which is interposed between and is moved along with the metal belts, using heat continuously transferred through the metal belts; and con¬ tinuously foaming the forming material continuously moved out of the metal belts in a con¬ tinuously crosslinked state.</p> |
