About Industrial Refractories
Read the properties of our quality refractories.
MANGANESE
Manganese removes oxygen and sulfur when iron ore (an iron and oxygen compound) is converted into iron. It also is an essential alloy that helps convert iron into steel. As an alloy it decreases the brittleness of steel and imparts strength. The amount of manganese used per ton of steel is rather small, ranging from 6 to 9 kilograms. About 30 percent of that is used during refinement of iron ore, and the remaining 70 percent is used as an alloy in the final steel product. Manganese is used also as an alloy with metals such as aluminum and copper. Important nonmetallurgical uses include battery cathodes, soft ferrites used in electronics, micronutrients found in fertilizers and animal feed, water treatment chemicals, and other chemicals such as those used as a colorant for automobile undercoat paints, bricks, frits, glass, textiles, and tiles. The product “manganese violet” is used for the coloration of plastics, powder coatings, artist glazes, and cosmetics.
SILICA RAMMING MASS
The silica ramming mass is made of high purity microcrystalline quartz sand, powder, adding high-temperature sintering flux, and mineralizer. Because of its proper size distribution design, it can get dense unshaped lining through all kinds of knot methods. The silica ramming mass is mainly used for working lining of non-core induction furnace for melting and holding cast iron. The percentage of SiO2 is more than 98.6% and the largest amount of Al2O3 is 0.8%, with little other elements like MgO, CaO, Na2O, K2O, etc. The application temperature for steel is up to 1700℃ and for cast iron is up to 1550℃.
GRAPHITE
Graphite is a type of mineral found in metamorphic and igneous rocks. It is usually formed when carbon is subjected to high temperature and pressure in the earth’s crust. Graphite is also said to be one of the naturally-occurring form of crystalline carbon. However, this mineral is an interesting one and is commonly referred to as the mineral of all extremes.
BENTONITE
The term Bentonite was first used for a clay found in about 1890 in upper cretaceous tuff near Fort Benton, Montana. The main constituent, which is the determinant factor in the clay’s properties, is the clay mineral montmorillonite.
Bentonite is a clay generated frequently from the alteration of volcanic ash, consisting predominantly of smectite minerals, usually montmorillonite. Other smectite group minerals include hectorite, saponite, beidelite and nontronite. Smectites are clay minerals.
BORIC ACID
Boric acid, also known as boracic acid or orthoboric acid, is a naturally occurring compound containing the elements boron, oxygen, and hydrogen (H3BO3). Boric acid crystals are white, odorless, and nearly tasteless. It looks like fine table salt in the granular form or like baby powder in the powdered form.