Explanation

This is a inorganic nonmetallic materials, and the preparation process includes the steps of melting, disking and crystallization of raw materials. Generally, the raw materials of this materials mainly come from silicate, including basic rock such as basalt and diahmse, shale can also be used, and some solid wastes such as blast furnace slag, steel slag, copper slag, chromium slag, ferroalloy slag, etc. The preparation process includes mixing, melting, pouring and heat treatment of raw materials. The main composition of the materials is usually pyroxene minerals, and sometimes wollastonite, olivine, basic plagioclase, magnetite, etc. These minerals usually appear as fine grains, showing the characteristics of supercooled crystallization, including composition (non stoichiometric balance) and crystal morphology (crystallite and skeleton). In addition, it also contains a certain amount of glass phase. The main performance characteristics of such materials include high hardness (hardness ranges from 7 to 8), good wear resistance (wear resistance coefficient is 0.09 to 0.14 g/cm2), and strong corrosion resistance. Except hydrofluoric acid and hot phosphoric acid, they can resist corrosion of other acids and bases (acid resistance is more than 96%, alkali resistance is more than 98%). However, such materials have poor toughness and impact resistance and are difficult to cut. The main products include pipes, clad pipe, plates and materials, which are widely used in electric power, coal, mining, metallurgy, chemical industry, construction and other industrial fields. They are used in anti-corrosion and wear-resistant parts, such as anti-corrosion lining of acid or alkali storage tanks, reaction tanks, pickling pools (troughs), chutes and transmission pipelines of ore, ash, tailings, and wear-resistant lining plates of ball mills. This materials can significantly extend the service life of components or equipment. In addition, light or colored caststone can also be used as indoor and outdoor decoration materials and ground materials, such as warehouse floor, passageway and stair step of public buildings, acid resistant floor and dado of plants, dam facing and sand hole lining of hydraulic engineering, etc.

Classification