wanhaorefractory

The bottom of the matte reverberatory furnace is mainly affected by the chemical erosion and thermal stress of the molten copper matte and molten slag. Sometimes the joints of the refractory bricks are too large, the masonry is not good, and the matte penetrates into the furnace bottom, which will cause the furnace bottom bricks to float and damage. Multi-layer structure composite furnace bottom is generally used: refractory fiber felt , lightweight refractory bricks , and magnesia bricks are laid on the steel shell and slab surface in sequence. The working lining is generally sintered with magnesia sintered integral furnace bottom or quartz sand sintered furnace bottom (less Used), and has a reverse arch structure. Copper reverberatory furnaces are generally equipped with an electric front bed (electric heating and heat preservation), and are generally built with magnesia bricks or magnesia chrome bricks. Wanhao is a manufacturer who is specialized in designing various kin

  The damage process of magnesia carbon brick : the damage of magnesia carbon brick is firstly due to the oxidation of carbon in the brick to form a decarburized layer, plus the difference in thermal expansion rate between magnesium oxide and graphite at high temperatures (1.4% and 0.% at 1000 ℃, respectively) ), Leading to loose structure, reduced strength, and then eroded by slag, mechanical erosion, etc., the magnesium oxide particles in the brick are gradually eroded, falling off layer by layer, causing damage to the magnesium carbon brick. The damage process of magnesia carbon brick is: oxidation → decarburization → looseness → erosion → erosion → shedding → damage. The damage of the magnesia carbon brick is firstly the oxidation of the carbon in the hot surface of the working lining to form a thin decarburized layer. The oxidation of the carbon is due to the continuous oxidation of iron oxides in the slag and O? in the air and oxides such as CO?, SiO? Th

  carbon containing refractories, carbon containing refractories, carbon-containing refractory castables The carbon content of refractories is higher than that of refractories. The higher the carbon content in refractories is, the poorer the use of carburizing for molten steel, and the poorer the crisis. It is worth noting that in some carbon containing refractories, except for free carbon, the carbon in refractories can be directly dissolved into molten steel, It may also contain SiC as the main component or additive, which may lead to urgent carburizing use. Carbon-containing refractory bricks are used extensively in the steel industry worldwide, carbon-containing refractory bricks are oxidized under high temperature conditions. In addition to the work on carbon containing refractory bricks , much effort has been, and is being, made worldwide towards the development of carbon-containing refractory castables . Wanhao is a manufacturer who is specialized in designing

  Tapping hole fillers must have suitable sintering performance to form a sintering layer, which can prevent the leakage of high temperature molten steel to the lower part of the tapping hole and prevent accidents caused by the floating of the filler; What’s more, the thickness of the sintering layer formed by the sintering layer is required to be moderate, so that when the baffle plate at the lower part of the tapping hole is opened, the filler will fall under the action of gravity, and the sintering layer will fall under the action of gravity when the baffle at the bottom of the tap hole fillers is opened Under the action of thermal stress, the shell is broken and the gravity flow is formed. Wanhao refractory are engaged in offering? tapping hole fillers . Tap hole filler contacting with molten steel while tapping, sintered layer is formed to prevent molten steel from down-penetrating. The rest of EBT taphole filler under the sintered layer can smoothly flow out while opening the