GLASS WOOL COMPACT PRODUCTION METHOD, GLASS WOOL COMPACT, AND VACCUMED HEAT INSULATOR

摘要

In a glass wool compact production method comprising a) fiberizing glass raw materials to form glass wool (3), b) fluffing the glass wool to form a glass wool mat that has a unit weight equal to or greater than 2000 g/m2, c) press forming the glass wool mat to form a glass wool compact that has a thickness equal to or greater than 10 mm, before press forming, a water content ratio of the glass wool mat is controlled to be larger than 7.0 mass % and less than or equal to 30 mass % by applying water from nozzles (5) and them The press forming is done while keeping the temperature of the glass wool mat between 250 to 450°C.