Cheap Brown Aluminum Oxide Factory Germany

The formed bricks need to be dried to improve the mechanical strength at room temperature(brown aluminum oxide). The porosity of the samples treated at 200 ~ 250 ℃ is lower than that of the samples treated at 200 ~ 250 ℃; the porosity of the samples treated at 200 ℃ or 250 ℃ is higher than that of the samples treated at 250 ℃ hardening is more obvious. It should be kept at 200 ℃ or 250(brown fused aluminum oxide suppliers).

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The bulk density of the samples treated at 200 ~ 250 ℃ is higher than that of the samples treated at 200C or above 250 ℃(silicon carbide price), while the bulk density of the samples treated at above 250 is lower than that of the samples treated at 200 ~ 250 ℃. Therefore, the magnesia carbon brick is generally treated at a temperature of 200 ~ 250C to obtain products with better performance(brown fused alumina oxide), and the heating rate should follow the following rules.

When the temperature is higher than 250 ℃, the compressive strength at room temperature decreases obviously(brown aluminium oxide). 50-60 due to resin softening, it should be kept at 100-110 ℃, and a large amount of solvent should be discharged. Therefore, magnesia carbon brick with strong slag resistance and thermal shock resistance is required(wholesale brown fused alumina). It can basically avoid the phenomenon of tissue damage and peeling caused by cracking in the use process.

In particular, it has a strong resistance to slag penetration, and the permeability layer of magnesia carbon brick is much shallower than that of the old fired alkaline brick(white alumina). The so-called high temperature refers to the converter smelting of high-grade steel, or because of the increase of continuous casting ratio(brown aluminum oxide 250 grit), a variety of external refining requirements to improve smelting temperature, high temperature strength and so on.

MgO-C brick has high melting resistance because of its composition material is MgO and carbon, both of which have high melting point, and the two components are not solid fusion with each other(black corundum). MgO-C brick is a kind of composite structure, the main part of which is MgO clinker with strong slag corrosion resistance to alkaline slag and carbon with poor wettability to slag, so it shows excellent slag corrosion resistance(green carborundum).

When the temperature is lower than 250 ℃, the compressive strength at room temperature is higher(brown fused alumina). The magnesia carbon brick, which inherits the excellent characteristics of graphite, has the characteristics of high thermal conductivity, low coefficient of linear expansion and modulus of elasticity(brown fused alumina suppliers). Mgo-cao-c refractories have been used to replace Mg-C bricks by domestic and foreign scientists and technologists.

In order to make the reaction complete, it should be kept warm(pink corundum). In addition to the above excellent properties, magnesia carbon brick also has good thermal creep resistance. Compared with other ceramic bonded bricks, magnesia carbon brick shows particularly good creep resistance(silicon carbide companies). Furnace cap: the furnace cap is seriously corroded by slag, and also affected by temperature change, carbon oxidation and dust bearing waste gas flushing.