SU622783A1 - Raw mix making heat- and sound-insulating material - Google Patents

Description

(54) RAW MATERIALS FOR MANUFACTURING

TBOSE INSULATING MATERIAL

The invention relates to building materials, and more specifically to heat and sound insulating materials used in the V-circuit cable. A heat insulating material is known that includes liquid, glass, orthophosphoric acid, granules of swollen liquid p, and hydrophobiciser; | 1. The disadvantage of it is a high bulk weight. Closest to the proposed technical solution is a composite for the manufacture of insulating material, including a binder — liquid glass and sodium silicofluoride, a filler — quartz sand, a swelling additive. And, in addition, lime — launcher in the following ratio of components, weight. %:, Liquid glass 45-50 Fluorocarbonate (quartz sand atrium 53-43.5 Swelling additive 0.05-0.5 0.55-1.012 Ievest-Puscheika To the disadvantages of the known composition should be attributed to the low bulk weight, the presence of | | lime-fuzz, which increases the cost of the material, and the insufficiently high heat and sound insulation characteristics of the invention. The aim of the invention is to reduce the bulk weight of the material and reduce its thermal conductivity. The aim is to achieve the raw material for the production of heat and sound insulating material, including Liquid glass, aggregate, aaogen forwarder, additive and water, contain urea as a filler, ammonium carbonate as a gas forming agent, and fluorosilicic acid as an additive in the following ratio of components, wt.%: Liquid glass85-96 Urea1-5 Ammonium carbonate 2-6 Cream hydrofluoric acid 0, Water Else.

To prepare the material from the composition, liquid glass, urea, ammonium carbonate, silicofluoric acid, and water are taken, mixed, and the mixture is dried to a moisture content of 35-40% by evaporation, passing it through an evaporator T 75-95 for 2-4 hours. Dried skes

crushed to a fraction of 0.1-2.5 mm in rotary-type crushers and subjected to heat treatment in heating furnaces of the slit or rotary type

depending on the continuous or cyclical manufacture of the material at. T "200 - 4OO C for 3.6-4 hours at a speed of 50 degrees / hour. Then the finished material is cooled and cut into ideel of a given size. The described method was prepared material from three mixtures, an ingredient with the following characteristics (see tal, 1).

Physical and mechanical properties are given

in tab. 2 .:

Limit of working temperatures -, 40 - SOO С

Table