Felt refractory mullitokremnezemisty MKRV-200

Refractory felt mullite-silica MKRV-200 are made on the basis of mineral wool fibers of mullite-silica composition and are characterized by an Al2O3 content of up to 62%. They are produced by melting aluminum and silicon oxides in an electric furnace.

By introducing modifying additives, the service temperature of fibrous materials is increased. So the addition of 2 - 5% chromium oxide increases the temperature of long-term use of refractory fiber from 1150 ° C to 1250 ° C.

The properties of refractories may differ depending on the specific material - we will analyze these features with a few examples:

Mullite-silica wool - has high heat resistance, but its thermal conductivity is lower. It is an excellent insulator for stoves, chimneys, heating wells and other systems.

Mullite-silica cardboard is a moderately dense material, it keeps its shape perfectly, provides excellent insulation. Withstands temperatures up to 1100 ° C, including long-term heating.

Refractory boards - they are superior in density to cardboard, they are used for laying places for heating equipment. They have low thermal conductivity, good noise insulation and are resistant to aggressive environments.

Mullite-silica felt, felt, is made from fibers of mullite-silica composition, which is produced by melting pure aluminum and silicon oxides in an electric furnace, followed by fiber formation by blowing. To increase the temperature of application of the material, oxides of zirconium or chromium are introduced into the fiber composition. After heat treatment, the material gains strength.

The mullite-silica tube MKR and the mullite-silica tube with the addition of zirconia MKRTs are produced in various configurations: round, oval, rectangular, asterisk, length from 10 to 2000 mm, can be made with one closed end. Recommended service temperature - up to 1350 ° С. They are used in instruments for the determination of carbon and sulfur in metals and alloys; for the protection of thermocouples, thermoelectrodes and other purposes.

    You can buy Felt refractory mullite-siliceous MKRV-200 from us at the most favorable price in Ukraine. A wide range of products allows us to quickly and efficiently fulfill any orders, helping to complete any construction work on time.