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PROCESS FOR MAKING HONEYCOMB SANDWICH PANELS.
PROCESS FOR MAKING HONEYCOMB SANDWICH PANELS.
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机译：制作蜂窝夹心板的过程。
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摘要
The invention relates to a process for making an aminoplast-impregnated sandwich panel consisting of a honeycomb (6) and facing by means of an autoclave (1), characterized in that at least one of the honeycomb (6) and facing (5) is impregnated with aminoplast and the sandwich panel is placed in an autoclave under a sheet of flexible material (7), which flexible material is at least partially gas tight and is sealed at its edges, over which flexible material a first pressure is applied and under which flexible material a second pressure is applied, that is lower than the first pressure whereby the second pressure is at least as high as the vapour pressure of water at the curing temperature of the aminoplast. Honeycomb sandwich panels made by applying a process according to the invention are particularly suited for being used in applications with high demands imposed in respect of strength and rigidity in combination with high demands in respect of fire resistance. Examples are aircraft, house building, trains, automotive vehicles and ships. IMAGE
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