Process and apparatus for vacuum foaming of panels
作者： Luciano Manni
DOI:
关键词: Materials science 、 Pentane 、 Composite material 、 Blowing agent 、 Polyurethane 、 Shell (structure) 、 Process (computing) 、 Manifold (fluid mechanics) 、 Inert gas
摘要: A process and an apparatus for blowing in inert gas vacuum foaming of insulting panels: upper shell (31) a lower (32) defining the outer in-sight surfaces cavity (17) panel, are positioned between opposing platens (13, 14) press, together with annular frame (16) retaining foam; comprises peripheral channel (24) connected to respectively manifold (26) arranged one (14) press 14). At first, air is removed by through foam (16); successively source (37) metered quantity polyurethane mixture pentane agent injected, allowing flow panel under effect.
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