Carborundum, also known as silicon carbide (SiC), is made by smelting quartz sand, petroleum coke (or coal coke), wood chips (adding salt when producing green silicon carbide) and other raw materials through resistance furnace at high temperature. Silicon carbide also exists in nature as a rare mineral, moissanite. Silicon carbide, also known as carborundum. Among contemporary non oxide high-tech refractory raw materials such as C, N, and B, silicon carbide is a widely used and economical type, which can be called steel sand or refractory sand. At present, the industrial production of silicon carbide in China is divided into two types: black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a specific gravity of 3.20-3.25 and a microhardness of 2840-3320kg/mm2.
Application scope: functional ceramics, refractory materials, abrasives, and metallurgical raw materials. The coarse silicon carbide material can already be supplied in large quantities, but the application of nanoscale silicon carbide powder with extremely high technological content cannot form economies of scale in a short period of time.
As an abrasive, it can be used to make grinding tools, such as grinding wheels, oilstones, grinding heads, sand tiles, etc
As a metallurgical deoxidizer and high-temperature resistant material
High purity single crystal, which can be used for manufacturing semiconductors and silicon carbide fibers
Main use: Used for wire cutting of 3-12 inch monocrystalline silicon, polycrystalline silicon, potassium arsenide, quartz crystals, etc. Engineering processing materials for the solar photovoltaic industry, semiconductor industry, and piezoelectric crystal industry. It is used in semiconductor, lightning rod, circuit components, high temperature applications, ultraviolet detectors, structural materials, astronomy, disc brake, clutch, diesel particulate filter, filament pyrometer, ceramic film, cutting tools, heating elements, nuclear fuel, jewelry, steel, protective gear, catalyst support and other fields.
Abrasive grinding tools: mainly used for grinding and polishing of grinding wheels, sandpaper, abrasive belts, oilstones, grinding blocks, grinding heads, grinding paste, monocrystalline silicon, polycrystalline silicon, and piezoelectric crystals in the electronics industry in photovoltaic products.
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