Manufacturing method of open cell hard polyurethan form and vacuum adiabatic panel

摘要

The present invention relates to a manufacturing method and a vacuum insulation panel of an open cell rigid polyurethane foam, and an object thereof is to increase the heat insulating effect than a perpendicular cutting the open-cell rigid polyurethane foam in a direction parallel with the growth direction of the open cells.; According to the production process of an open cell rigid polyurethane foam of the present invention, cut along the major axis (Y) of the cells (32) growing a continuous open-cell rigid polyurethane foam (30) it made in the vertical foaming method polyurethane foam 31 as, low in manufacturing cost for producing and as well an oval on the open cells 32, the growth direction (arrow D direction) and a large number of open cells 32, the closed cells of the foam thickness (T) because the side-by-side cutting It is included. In addition, for open when manufacturing the vacuum insulation panel (40) a cell rigid polyurethane foam 31 into the core material, a large number of open cells 32, the major axis is the heat insulating direction (arrow F direction) produced by such a method It has the advantage that due to the vertically disposed improve the insulation index.