Corundum bricks are high alumina refractory fire bricks
made for extreme demands. The alumina content in corundum brick is from
synthetic corundum of high purity, such as white fused alumina or
tabular alumina. Additional ingredients are special refractory clays, reactive alumina, and very pure modifications of silica. Corundum bricks are fired at high temperatures to form a matrix with mullite, mullite-corundum or corundum that has excellent volume stability.
The service temperature for corundum brick
goes up to 1800°C. Corundum bricks can be used in nearly all fields of
industrial application where extreme high temperature and increased
resistance against aggressive slags and atmospheres are necessary. Such
properties or features of corundum bricks are necessary especially in
the chemical industry and for the production of carbon black. The
addition of chromium oxide, zirconium oxide, and phosphates gives the refractory
bricks excellent structural flexibility, which is required for ash
melting furnaces and gas reactors in incinerators. Wanhao Refractory
distributes Corundum Bricks of the best quality at the most competitive
prices with our fast, responsive customer service and reliable delivery
service.
Contact us to order corundum brick, and our fast reliable delivery services will save you time and money!
Article Source: Corundum Brick Company name: Wanhao Refractory Email:sales100@wanhaorefractory.com Website:http://www.wanhaorefractory.com/
Ladle purging plug is a kind of functional refractory material with long life, energy saving, consumption reduction and emission reduction. It is made by firing high-purity raw materials. It has the advantages of high blow-through rate, corrosion resistance, thermal vibration resistance, safety and reliability, and long life. P urging plug is used in the out-of-furnace refining of ferrous metals and the smelting of non-ferrous metals. 1.The influence of smelting conditions on the air permeability of ventilating bricks The greater the degree of overheating, the lower the viscosity, surface tension, and wetting angle of the molten steel, the greater the tendency to seep steel, and the lower the ladle blow-through rate. Some research materials have introduced: when the carbon in the iron-carbon melt is 0.15% and 0.40%, the surface tension appears the minimum and the maximum, reducing the content of the non-metallic elements sulfur and oxygen of the steel grade can si...
Graphite electrode market finally starts to pick up this spring after nearly two sluggish years. Pricesof HP graphite electrode products have been raised across the board, with HP products registering an increase of 3000 yuan/mt and UHP products 5000 yuan/mt.This round of price increase is contributed by multiple factors. Specifically, ★ Prices of refractory raw materials have been soaring,with an increase of over 80% generally. According toinformation compiled by ICC News, up to now, domestic low-sulphur petroleumcoke prices have increased to 2000 yuan/mt from last November's November; coalpitch prices have risen to 3,300 yuan/mt from last October's less than 2,000yuan/mt. Domestic needle coke prices have now risen to 5,800 yuan/mt from theprevious 3,200 yuan/mt as well. The increase in cost in real terms is a factbeyond doubt. ★ Supply and demandwas out of balance at the previous stage. Amid prolongedrecession of domestic steel market in recent yea...
The anti-erosion castable refractory is made of aggregate of special vitriol and corundum, powder and additive proportionally. CA-71 is added as the bond and the pulvis is also added in. It is a kind of good auto-flow castable with high anti-erosion ability, high temperature resistance, strong wallop and high stability under heat vibration. It is recommended to be used in the part of complicated or easy been eroded of the boiler as an auto-flow corundum castable with high anti-erosion ability. During the construction, mix the dry basis and added materials (additive, bond and pulvis) well with stirring mill before water is added into (about 5.5%). Then pour it into the form and vibrates to avoid and hole or seam. The form can be removed after 1-day maintenance. Normally, the quality of auto-flow corundum castable has close relationship with stirring mill, the amount and purity of the water. Thus, it is required that stirring mill and water must be clean and you must ...
评论
发表评论