The Temperature Affects The Service Life Of Ceramic Fiber Blanket

General
When the use of ceramic fiber blanket, to regular maintenance, so as to extend the service life, in addition to ensuring the quality of its use, the impact of the life of the factors also need to know what can we, today we mainly talk about Is the point, that is, temperature factors, how the temperature affects its life, together from the following simple analysis about it
First of all must be allowed to use the temperature conditions used, the development of the crystal is slow, the nature of the fiber is relatively stable, in the oxidizing atmosphere from external shocks, the life of up to 5-10 years, followed by the kiln The use of fuel types (gas, oil, coal), furnace atmosphere, furnace atmosphere containing the composition of corrosive substances to determine the use of refractory fiber temperature, there is the use of reductive furnace gas should be used as a raw material The aluminum silicate acupuncture blanket is used as an industrial kiln lining lining material and is coated with an anticorrosive coating on the surface of the ceramic fiber blanket lining, which not only improves its chemical stability and improves its wind resistance and reduces the shrinkage of the fiber lining , It is necessary to calculate the thickness of the wall thickness of the thickened aluminum silicate needle according to the composition of the reducing atmosphere in order to obtain the same insulation effect as the refractory fiber lining in the reducing atmosphere.
As long as the service life is improved, our production costs are reduced, so the use of temperature control must be in accordance with the requirements of the temperature, so that ceramic fiber blanket life will be extended.

When the use of ceramic fiber blanket, to regular maintenance, so as to extend the service life, in addition to ensuring the quality of its use, the impact of the life of the factors also need to know what can we, today we mainly talk about Is the point, that is, temperature factors, how the temperature affects its life, together from the following simple analysis about it

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Influencing Factors Of Performance Of Mullite Insulation Brick

General
 The insulation performance of mullite insulation brick is very good, depending on the good performance of mullite brick, so we have to control the impact of mullite insulation brick performance factors.
Mullite tiles usually contain impurities such as TiO2, Fe2O3, CaO, MgO, K2O and Na2O, and the impurity content of mullite produced from natural raw materials is higher than that of synthetic raw materials. These impurity oxides play a role in mullite, reduce the temperature and viscosity of the melt, increase the amount of liquid phase, increase the dissolution rate and dissolution of the melt to the solid phase, but the impurity oxides The effect of K2O and Na2O on the liquid formation temperature is the largest, and K2O and Na2O decrease the temperature of the non-variable point by 513 ~ 724 ℃, respectively, and also decompose the effect of mullite. Among these impurity oxides, the effect of TiO2 is the smallest, and only the variable point temperature is reduced by 101 ~ 107 ℃. When the TiO2 content is less, in addition to part of the solid solution in the mullite to form a limited solid solution to promote the formation of mullite and crystal growth, there are some at high temperatures into the liquid phase to form vitreous. Fe2O3 in the high temperature of mullite and corundum in a certain solid solubility, the formation of limited solid solution. Its solid solubility in corundum is higher than that in mullite, and the lattice of mullite and corundum grows up due to the formation of solid solution. The effect of Fe2O3 on the initial melting temperature of Al2O3-SiO2 system is related to the Al2O3 / SiO2 ratio in the system. When Al2O3 / SiO2, the initial melting temperature is 1380 ℃. When Al2O3 / SiO2> 2.55, Melting temperature increased to 1460 ℃, and with its A12O3 content increased gradually increased. In the reducing atmosphere, Fe2O3 was reduced to FeO and de-dissolved into the glass phase, and the initial melting temperature of the system decreased, respectively, down to 1240 ℃ and 1380 ℃. In short, with the mullite brick Al2O3 content increased, its high temperature performance increased; and the amount of flux increased, high temperature performance. According to this, strict control of impurity oxide content, especially K2O, Na2O and Fe2O3 content, is to obtain high-performance mullite brick important measures. In the use of alkali-containing components of the slag or gas environment, the use of mullite brick have a serious erosion.

The insulation performance of mullite insulation brick is very good, depending on the good performance of mullite brick, so we have to control the impact of mullite insulation brick performance factors.

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