| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to production of fillers to be used in compositions of heat insulation materials and coats. Liquid glass is mixed with magnesium carbonate in amount of 3% to 10% of total volume of mix. The latter is dries at 5-40C and minced to 3-100 mcm-grain size. Then, glass bearing powder is treated at 150-500C to comply with preset foaming, curing and cooling level. In production of expanded glass to be used in composition of fire-insulation coat expansion ratio is set to 10% of initial volume while heat treatment is carried out at lower temperatures of preset temperature range. In production of expanded glass to be used in composition of heat-insulation coat expansion ratio is set to 1000% of initial volume while heat treatment is carried out at higher temperatures of preset temperature range. ^ EFFECT: decreased temperature of heat treatment. ^ 3 cl, 2 ex |
