Introduction to the performance of Refractory for non-ferrous alloy

Refractory for non-ferrous alloy manufacturers tell you that refractory materials are also important basic materials in the non-ferrous metallurgical industry, and are the main bearers of physical and chemical erosion and mechanical damage of high-temperature melts. The size and structure of refractory bricks have strict requirements.

Different from iron and steel metallurgy, there are many kinds of non-ferrous metals, the nature of mineral resources is very different, and the required smelting technologies are also diverse. At the same time, the requirements for refractory materials are also different. There are a lot of refractory materials consumed by non-ferrous metals, but the refractory materials required by each smelting technology are not large-scale, so in recent decades, non-ferrous metal refractory materials have not developed greatly, and how many sets of steel smelting use refractory materials. Refractory for non-ferrous alloy damage is mainly caused by slag erosion with relatively complex composition, and it is also an important factor that limits the increase of non-ferrous metal smelting temperature, which seriously affects the development of non-ferrous metal intensified smelting technology.
At present, the refractory materials used in the non-ferrous metal industry mainly include chromium-magnesium refractory materials, silicon carbide refractory materials, alumina corundum refractory materials and silicon-aluminum refractory materials. Refractory for non-ferrous alloy manufacturers tell you that chromium-magnesium refractories are widely used in copper smelting, nickel smelting and lead smelting industries. The characteristics of the three metal smelting are: the flue gas contains a large amount of S02 gas; the melt not only contains oxides, metals, but also a lot of sulfides, and the melting temperature of the melt is relatively low, but the fluidity of the flame is good; The slag is Fe0-Si02 series slag, and the amount of slag is very large; the temperature in the furnace fluctuates greatly, and the melt scours the refractory material seriously. Refractory for non-ferrous alloy manufacturers tell you that chrome-magnesium refractories have strong resistance to iron-silicon slag erosion and S02 erosion, and also have good resistance to melt erosion. They are currently the most used refractory materials for the smelting of three metals.