SU583113A1 - Heat insulating material - Google Patents

Description

(54) HEAT-INSULATING MATERIAL

one

The invention relates to the manufacture of tenloisolation materials.

Thermal insulation material is known, containing 10–15% asbestos and 85–9.9 gallium of calcium (

Of the known thermal insulation materials, its composition is closest to a & Thermal insulation material, amphibole-type asbestos and asbestos calcium 2.

Its disadvantage is relatively low temperature resistance, durability and resistance to arrozii by color metal melts.

The aim of the invention is to increase the temperature resistance, strength and cost & coats against erosion of non-ferrous metals melts of heat-insulating material.

The above step is achieved by the fact that the thermal insulation material of ashtone solid contains silica sol with the following cooiw components, in wt.%:

Asbestos amphibole group 40 -50

Silicate Kalysh 45- O

Silica 5-1O |

Note. A mixer B is charged with 4O% asbestos fibers of the amphibole group, 50% calyx silicate, and 10% silica skim. The mixture is injected with water, the amount of which is 1OOO-15OO% of the weight of solid weight to the mixture in the mixture. After mixing, the mixture is poured into vacuum molds, where shaping takes place and then the mixture is compressed (, kg / cm) to remove the mixture. After that, the material is subjected to a toklavirovaniyu and drying at a temperature that is superior to the boiling point of water.

The flexural strength of the resulting plate, 68 kg / cm, compression of 170 kg / cm, is melted in the melt.

Claims (1)

Thus ms, tubes, funnels, trays, etc .; at the same time, the material has the following properties: volume weight O, 5-O, 8 g / cm, tensile stress, compression, 1OO.20O kg / cm, flexural strength (kg) / cm). heat conductivity 0.06–0.09 kcal / mhour C, mate | Sting (I am airtight, airtight, resistant to melts of colored megalads and does not interact with them. According to preliminary data, laboratory samples of products from the proposed item) m € 1 of the material saves more than 1OO thousand rubles in the plants of the color and aviation metallurgy. Claims of the invention: Teplonzole ionic material including amphibole asbestos and calcium silicate, characterized in that, with the aim of increasing temperature resistance, progression and resistance to arrosion with melts of non-ferrous metals, it additionally contains silica sol at the following ratio of components in VVS%: Asbestos amphibole group 4O-50 Calyg silicate 45-50 Silicon Sol 5-10 Sources and 1formai taken into account during the examination: 1. China A 1 V. A, Technology of thermal materials flsmHOHHHX materials, M., Stroyizdat, p. 258-263. 2, US Patent No. 2326516, cl. 1p6-12O. 1943.