Refractories are heat resistant materials that are used to line high temperature furnaces and units. Refractories have to be resistant to thermal stress and other heat-related phenomena, and they have to stand up to physical wear, abrasion and chemical corrosion. The refractories have to be more heat resistant than metals, and they are required for heating applications that go above 538° C.
Shaped refractories (bricks) are blocks of refractory ceramic material used in lining furnaces and kilns. Bricks are formed using presses or molds. These are Alumina Magnesia Carbon (AMC), Alumina Silica Carbon (ASC), High Alumina (HA), Magnesia Alumina Carbon (MAC), Magnesia Carbon (MC), Magnesia Chrome (MCH), Magnesia Lime (ML) and others.
Monolithics are unshaped masses which can be used to create the monolithic linings within all types of furnaces and kilns. They can be further classified into the following sub-categories: castable refractory, ramming refractory, refractory mortar, insulating castables for installation either by gunning/shotcreting/ramming or manually. Monolithics are produced by mixing powdered raw materials together with a wetting agent or binder.
Isostatic refractories are isostatically pressed masses to get custom design of product which are basically used for casting process and gas blowing systems. These are stoppers, tundish nozzles, protective tubes, submerged entry nozzles, tap-hole sleeves etc.
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