Quartz is one of the most important mineral resources of the silicon age. The applications of quartz are vast and the potential is limitless. Quartz sand plays an irreplaceable role as the main basic raw material for many emerging industries such as new energy, new materials, and new generation information technology. So, what are the types of downstream products of quartz sand? Guilin Hongcheng is a manufacturer of quartz sand mills. Our quartz sand grinding mills have been widely used in the processing of downstream products of quartz sand. Today, I will introduce you to the downstream products of quartz sand.
1. Industrial silicon
Industrial silicon is obtained by melting quartz sand in an electric arc furnace with carbonaceous materials as reducing agents. Commonly used reducing agents mainly include charcoal, petroleum coke, coal, etc., which can reduce metal silicon from silica. In the photovoltaic industry, industrial silicon is the main raw material for the manufacture of polysilicon and other materials; industrial silicon is also the most important raw material for organic silicon, used to produce silane, silicone, silicone oil and other products; in the alloy industry, industrial silicon is mainly used as non-ferrous Additives to base alloys. When silicon is added to some non-ferrous metals, it can improve the strength, hardness and wear resistance of the base metal, and sometimes enhance the casting performance and welding performance of the base. Industrial silicon has become the main upstream product of the silicon-based new material industry chain and the core raw material for many important sectors of the national economy.
2. Silicon carbide
Silicon carbide is an inorganic non-metallic material that has developed very rapidly in recent years. Silicon carbide ceramics have high hardness, high temperature bearing capacity, oxidation resistance, wear resistance, high thermal conductivity, small thermal expansion coefficient, and acid and alkali chemical corrosion resistance. It has broad application prospects in high-tech fields such as semiconductors, electronics, automobiles, atomic energy, environmental protection and energy saving. One of the preparation methods of silicon carbide powder is the carbothermal reduction method, which is to use coke or kerosene to reduce the silicon dioxide in the quartz sand in a high-temperature electric furnace to obtain a silicon carbide ceramic block material. Then through the mechanical crushing and grading process of the pulverizer to obtain silicon carbide powders with different particle sizes.
3. Quartz crucible
Quartz crucible is a subdivided product in quartz glass products, which has the properties of cleanliness, homogeneity, and high temperature resistance. At present, it is widely used in the production process of refining crystalline silicon in the fields of solar energy and semiconductors, and is a consumable in the production process of crystalline silicon. Benefiting from the accelerated expansion of silicon wafer production capacity and the increase in the penetration rate of N-type silicon wafers, the demand for high-purity quartz sand and quartz sand crucibles is expected to grow rapidly. The production of quartz crucible is to put high-purity quartz sand into the rotary molding mold that can be tilted at any angle, use the centrifugal force and the molding rod to manually shape, move the crucible-shaped rotating device to the electrode rod, and then send the electrode to the electrode. Start the arc and insert it into the formed powder cavity, and start the vacuum system at the same time to make it melt into crucible-shaped fused silica quickly, take it out after cooling, and complete the blank production of a quartz crucible.
4. Photovoltaic ultra-clear glass
As a new material, ultra-white glass has broad application prospects in solar photovoltaic industry, high-end cars, high-end buildings, high-end horticultural buildings and high-end furniture due to its high light transmittance and crystal clear characteristics. Photovoltaic glass production process: Quartz sand, soda ash and other raw materials are melted into molten glass, and the original sheet of ultra-clear rolled glass is obtained through rolling, annealing, cutting and other processes. The original sheet is coated and tempered to further improve the light transmittance and strength, and become a finished photovoltaic glass.
Glass fiber is a kind of inorganic non-metallic material with excellent performance, and there are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. Glass fiber is made of quartz sand, pyrophyllite, kaolin, limestone and other ores as raw materials through high-temperature melting, wire drawing, drying, winding and other processes. 1/20-1/5 of a hair, each bundle of fiber precursors consists of hundreds or even thousands of single filaments.
6. Artificial quartz stone
Artificial quartz stone is a composite material made by curing and molding 93% to 95% quartz and about 7% unsaturated polyester resin binder, colorant, curing initiator and other auxiliary reagents. It is hard, dense in structure, rich in color, wear-resistant, pressure-resistant, high-temperature resistant, corrosion-resistant, and impermeable. It is widely used in the market and is the fastest-growing variety of artificial stone.
7. Calcium silicate board
Calcium silicate board is an inorganic building board with high strength and stable performance, which is made of siliceous material, calcium material and reinforcing fiber as the main raw materials, through flow forming, slab compaction, and autoclave curing. It has superior characteristics such as fire prevention (reaching the A1 standard), thermal insulation, anti-corrosion and moth-proof, waterproof and moisture-proof, sound insulation and sound absorption, light weight and high strength, green and harmless, and is more energy-saving, environmentally friendly, earthquake-resistant and impact-resistant than traditional boards. It can be widely used in the insulation and decoration of interior and exterior walls of buildings, suspended ceilings, cabin partitions, billboards and other fields. And the design and installation have strong plasticity, saving time and labor. Quartz sand is one of the most important raw materials in calcium silicate products, accounting for 40% of the raw material quality of calcium silicate boards.
There are many kinds of downstream products of quartz sand, which are widely used and have a good market prospect. As a manufacturer of quartz sand mills, Raymond mills, vertical mills, ultra-fine vertical mills and other equipment produced by Hongcheng can process 80-2500 mesh quartz sand powder, which provides raw materials and equipment for the production of downstream products of quartz sand. If you If you have purchase requirements for grinding equipment, please leave us a message to learn more about the equipment.