CH Refractories manufactured casting powder is widely applied for both opening and protected CCM casting condition as well as molded casting . Our engineer will design each order of casting powder composition according to steel grade, casting speed, and other related casting condition.
According to customers' needs, CH Refractories can provide ordinary, quick exchangeable and gas purging upper nozzles. The bowl part of the tundish nozzle is available with Al2O3-C, MgO-C and spinel-C based and the main body is Al2O3-C based.
The submerged entry nozzle continuous casting protects the liquid steel from being oxidized by the ambient air when it flows into the crystallizer from the tundish.
CH refractories can design and produce argon purging and non-purging monoblock stopper as per the conditions of continuous casting processes in steel mills. The head of monoblock stopper can be Al2O3-C , MgO-C, Spinel-C or ZrO2-C based according to the types of steel to cast.
CH-WS series ladle and tundish well block is made of high purity, high density, high strength raw materials and designed by MAS matrix optimization system , which has the advantages of stable structure, anti-erosion, anti-erosion, good thermal shock stability and long service life.
CH Refractories manufactures different brands ladle nozzle and collector nozzle for various capacity ladle, which can meet different service life requirements.
The corundum brick is a kind of refractory brick with alumina content greater than 85%, corundum brick is divided into sintered and fused corundum brick, and chrome corundum refractory brick is added to corundum Cr2O3, after high temperature molding, high temperature sintering of high-grade refractory brick, chrome corundum refractory brick is also divided into fused cast chromium, sintered chrome corundum refractory brick.
After the castable is added with retarding agent, it cannot be used without fluidity, because the castable has difficulty condensing without fluidity, which seriously affects the strength of the castable. As for the castable manufacturers, under normal circumstances, according to the weather throughout the year, they will add coagulant in winter, and add retarder in summer to adjust the condensation of castable. Because below 5℃ and above 33℃ will affect the solidification time of castable. The most suitable temperature for the construction of castable is 15-25 ° C, if it is a fast-drying explosion-proof castable, below 15°C must be added to the binder for adjustment intervention. If the setting time is too long or the fluidity is directly lost after the addition of retarder in summer, one is that the retarder is added to excess, and the other is that the ratio of coarse particles and fine powders is unreasonable in the castable process ratio. If the ratio of coarse particles and fine powder is unreasonable, the castable will be separated and stratified when mixed with water during construction. If the fluidity of retarding agent is reduced in the laboratory, this batch of castable can not be...
Use nodular cast iron as raw material .The sealing height is only 110mm.The fan-shaped plate is equipped with two slideplate block. The moving fan-shaped case handle can make one of the slide plate cast hole in working,and make another one moving to the other space of the hydraulic control system.
The ladle shroud is a refractory material which connects the steel ladle with the tundish. The ladle shroud has the functions of stabilizing the flow state of liquid steel, preventing liquid steel from oxygenation and splashing.
CH Refractories manufactures different types of ladle slide gate plates for various capacity ladles, can meet different service life requirements. Generally the ladle slide gate plate is divided into fired and un-fired type according to different casting conditions and service life.
Light weight high alumina brick is also named high-aluminium heat insulation brick, are used in building heat insulating walls or heat preserving walls, which is basically for preserving or insulation heat. Refractory insulation thermal brick contains more than 48% alumina oxide.