FIELD: construction.
SUBSTANCE: method to manufacture soundproof panels includes formation of a dissolved slurry mix, containing water, mineral wool, a thermoplastic binding substance and/or starch, and distribution of dissolved slurry onto a porous carrier for slurry dehydration with formation of the main mat by means of self-flow drainage for water removal under force of gravity. The vacuum is adjusted so that the vacuum is gradually applied to the main mat dehydrated with self-flow for further dehydration of the main mat without action of static pressure at it, which may compress the main mat. The main mat is dried, producing a soundproof ceiling product, which has low density and superb sound-absorbing properties.
EFFECT: panel sound absorption improvement.
11 cl, 7 dwg, 23 tbl, 12 ex
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