This post mainly probe Take advantage of used magnesia carbon brick production regenerated material, And Research contain have regenerated material’s Regenerated magnesia carbon brick microstructure
Carbon-containing refractory material has fine corrosion resistance and antistripping and molten steel Cleaning, etc high-temperature performance. For example, Magnesia, Aluminum magnesia, Aluminum-carbon, silicon-carbon, magnesia calcium carbon, etc., It is widely used in the high-temperature steel industry.
In recent years, As the metallurgy industry development, carbon-containing refractory material production and technology continuously improve. Guarantee to the metallurgy industry is highly efficient and safe production.
Due to refractory material Usage amount much, Usage short cycle. So production more scrap refractory material. In China, According to the consumption of 8 million tons of refractory material in a year calculate, Produce scrap refractory material about 4 million tons in a year. Lead to serious-environment pollution and wasting resources.
In the steel industry, Authority more than once put forward to strengthen refractory material recycle used research. Passed more years researched, Global scrap refractory material regenerated used technology fast development, Regenerated refractory material Type continuous add, Fo example, regenerated magnesia carbon brick, regenerated Slag Resistance of Magnesia, regenerated magnesite-chrome brick, regenerated magnesia-alumina refractory material, regenerated tundish impact plate. etc.
Regenerated product quality problems will give rise to the high-temperature industry safety accident. Lead to serious life and property loss.
Now, Global to regenerated refractory material product microstructure and ingredient research very few.
Regenerated magnesia carbon bricks research way
Will make used magnesia carbon brick into regenerated material. Then, Add 20% regenerated material make regenerated magnesia carbon bricks sample. In addition, Adopt Axioskop40 polarizing microscope and XL30TMP scanning electron microscope and a spectrometer to proceed microstructure and ingredient to sample.
Firstly, The regenerated magnesia carbon bricks in regenerated material. Passed high-temperature magnesia grain edge to gradually be the dissolution, And, the regenerated magnesia carbon bricks contains have fake grain. Meanwhile, In the regenerated material, The antioxidant happens oxidation or partial oxidation.