Who can help to analyze the domestic refractory market?
Refractories - developments in ChinaThe refractory material of the Renaissance of ancient, medieval, before and after the industrial revolution, blast furnace, coke oven, hot blast furnace refractories, the late modern new refractory materials and manufacturing technology, modern manufacture technology of refractory materials and main technical progress, and look forward to the end of the development of refractories, refractories and high temperature technology accompanied by the emergence of general origin in the Middle Bronze age. In the Eastern Han Dynasty has made China kiln firing porcelain material and with fireclay refractory sagger. In the early twentieth Century, refractory materials were developed towards high purity, high density and ultra high temperature products. At the same time, unshaped refractory materials and refractory fibers without firing and energy consumption were developed. With the development of modern technology, atomic energy, space technology, new energy technology, refractory material having high temperature resistance and corrosion resistance, thermal shock resistance, erosion resistance and other comprehensive excellent performance has been applied.
Refractories - bulk refractoryBulk refractory (unshaped refractory): unshaped refractory is a refractory material that is made up of reasonably graded granules and powders and binders and is used directly without molding and firing. Usually, the granular material called the aggregate is called aggregate and the binder is called cementing agent. This material has no fixed shape, and can be made into paste, mud, paste and loose form. Therefore, it is also known as bulk refractory. This kind of refractory can form a seamless whole structure, so it is also called integral refractory.The basic composition of unshaped refractory material is granular and powdery refractory material. In accordance with its use requirements, can be made from various materials. In order to combine these refractory materials as a whole, except for a few special cases, they are usually joined with suitable varieties and quantities of binders. In order to improve its plasticity or reduce water consumption, a small amount of proper plasticizer is added. In order to meet other special requirements, a small amount of other appropriate additives can be added.
China used clay less than 4000 years ago to burn pottery and to cast bronze. In the Eastern Han Dynasty (AD 25 ~ 220) have been used to make clay refractory kiln firing porcelain material and sagger. In the early twentieth Century, refractory materials were developed towards high purity, high density and ultra high temperature products. At the same time, unshaped refractory materials and high refractory fibers without firing and energy consumption were developed (for 160)Refractory materialIndustrial furnaces above 0 degrees celsius. The former, such as alumina refractory concrete, is often used in large chemical plants, ammonia synthesis plant, two - stage reformer furnace wall, the effect is good. Since 50s, the rapid development of atomic energy and space technology, the development of new energy technology, requires the use of special refractory material of high temperature resistance, corrosion resistance, thermal shock resistance, erosion has excellent properties, such as melting point above 2000 DEG C, oxide refractory compounds and high temperature composite refractory materials.
