Silicon Metal Powder

Name: China Silicon Metal Powder Manufacturers Suppliers - Silicon Metal Powder Price - MINGRUI
Brand: Mingrui
SKU: 230359473

The company is equipped with a complete set of production and processing facilities: Production equipment such as cold isostatic pressing machines, hot isostatic pressing machines, vacuum induction melting furnace, vacuum sintering furnace, vacuum distillation furnace, vacuum hot pressing furnace, high temperature sintering furnace, and other furnaces for kinds of metals production. Cold molding machines, vacuum unwrought equipment, lathes, grinders, wire cutting machine, and other equipment for materials forming and machining.

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Product Introduction

Your Professional Silicon Metal Powder Supplier in China!

Anyang Mingrui Silicon Industry Co.,Ltd was founded in 2010, located in Anyang city, has been developing as the leading manufacturer of ferro alloys in China. The main products are: silicon metal, silicon powder, silicon slag, silicon briquette, Ferro silicon, FeSi inoculant, FeSi briquette, Calcium silicon, cored wire, FeSiAl alloy, Si-Al-Ba-Ca alloy, etc. We have more than 10 years experience on ferroalloy and silicon materials in China. Our products are mainly exported to Korea, Japan, India, Vietnam and Australia etc.

Advanced Production Equipment

Quality Control

We run a strict quality control system and apply different instruments and methods during the manufacturing process, including chemical elements inspection devices, Mechanical Testing equipment, manual ultrasonic detecting instrument/hydro pressure test machine/bore scope facilities/eddy current test machine/hardness test machine/dimension measure and others, which can ensure that every step has been perfectly performed. We provide products in accordance with ASTM, ASME, MIL, AMS, DMS, AWS and JIS specifications.

Most Competitive Prices

We have established perfect supply chain management and lean production systems to reduce costs. We are always in pursuit of high-efficiency mass production and scientific management. Therefore, we are able to ensure you the highest product quality with the lowest prices.

Comprehensive Solutions

Supported by our rich experience in the field of high purity materials, we are able to help customers select materials, design products and provide them with technical support. We have an independent laboratory for use of the development and test of new materials and providing customers with technical consultancy.

Introduction of Silicon Metal Powder

Silicon metal powder appears as a dark brown amorphous powder, has no odor, and is practically insoluble in Water at ambient conditions. However, it is soluble in molten Alkali Oxides and a mixture of Nitric-Hydrofluoric acids. It burns readily on exposure to heat or flames and may be difficult to extinguish with Water. It combines with Oxygen and other elements to form Silicates that constitute more than 25% of the Earth's crust. It is commonly produced on an industrial scale by Carbon reduction of Silica in an electric arc furnace followed by purification. Chemically pure or Laboratory reagents are the two terms often used to describe Lab Grade chemicals. Lab Grade chemicals do not meet any accepted quality or purity requirements such as the ACS Grade, the USP Grade, and the FCC Grade, despite their acceptable purity.

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Silicon Metal Powder

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Silicon Powder 98.5

Silicon powder 98.5 is the most important semiconductor material and is widely used in computers, microwave communications, optical fiber communications, solar power generation, etc. Scientists call the current era the silicon era.

Silicon Powder HS Code

Silica fume is a powder composed of silicon and is commonly used in the manufacture of various high-tech products. Due to its wide range of uses, international trade in silica fume has become increasingly important.

High Purity Silicon Metal Powder

With the rapid development of science and technology, new materials are constantly emerging, solving many problems for mankind. Among these materials, high purity silicon metal powder stands out for its unique properties and wide range of applications, and has become the object of much attention today.

Silicon Metal Powder 325 Mesh

Silicon metal powder 325 mesh is a common mesh size in metallic silicon powder. In industry, the mesh size is usually used to indicate the size of solid particles. It has an important impact on the preparation and use of metallic silicon powder.

Silicon Slag 50

The silicon content is from 45% to 95%, and the rest are C, S, P, Al, SiO2, Fe, Ca, etc. The silicon slag is much cheaper than purity silicon metal, and has many industrial applications.

Silicon Slag 60

Silicon slag is a waste produced during industrial production and has been widely used due to its unique physical and chemical properties. The silicon content is from 45% to 95%, and the rest are C, S, P, Al, SiO2, Fe, Ca etc. The silicon slag is much cheaper than purity silicon metal, and has many industrial applications.

Silicon Slag Iron

When we talk about silicon slag iron, we are referring to the solid waste produced during the production of ferrosilicon alloys. Due to its complex composition and unique properties, silicon slag iron is a valuable resource with great potential for recycling.

Silicon Slag 65

Silicon slag 65 manufacturers introduce that silicon slag is mainly composed of silicates, silica, and other components. It is produced during the manufacturing process of silicon-based materials. Silicon-based materials include Portland cement and lithium silicate batteries.

Properties and Characteristics of Metal Silicon Powder

The realm of metal silicon powder is adorned with a plethora of properties and characteristics, rendering it highly coveted in diverse industries. Foremost, it possesses an exceptional thermal conductivity, rendering it an ideal candidate for applications necessitating efficient heat dissipation. Additionally, it showcases unparalleled chemical stability, guaranteeing its longevity and imperviousness to corrosion in myriad environments. This powder is also renowned for its elevated melting point, low density, and commendable electrical conductivity, rendering it a suitable contender for employment in a plethora of electronic components and devices. Moreover, its fine particle size bestows upon it the ability to seamlessly amalgamate with an assortment of materials, thereby enhancing the performance and functionality of the final products.

Metal Silicon Powder Use

Industrial silicon powder is widely used in refractory materials and powder metallurgy industries to improve the high temperature resistance, wear resistance and oxidation resistance of products. Its products are widely used in steelmaking furnaces, kilns and kiln furniture.
In the organosilicon chemical industry, industrial silicon powder is the basic raw material for organosilicon polymer synthesis, such as the production of silicon monomers, silicone oil, and silicone rubber preservatives, thereby improving the product's high temperature resistance, electrical insulation, and corrosion resistance. properties, anti-corrosion, waterproof and so on.
Industrial silicon powder is drawn into monocrystalline silicon, and the processed silicon wafer is widely used in high-tech fields and is an indispensable raw material for integrated circuits and electronic components.
In the metallurgical casting industry, industrial silicon powder is used as a non-ferrous alloy additive and a silicon steel alloy agent to improve the hardenability of steel. Industrial silicon powder can also be used as a reducing agent for certain metals, for new ceramic alloys, etc.

Manufacturing Process of Silicon Metal

Powder Preparation
Silicon carbide (SiC) is a compound of silicon and carbon with a chemical formula of SiC. The simplest manufacturing process for producing silicon carbide is to combine silica sand and carbon in an Acheson graphite electric resistance furnace at a high temperature, between 1600°C (2910°F) and 2500°C (4530°F). Fine silicon particles can be converted to silicon carbide (SiC) by heating in the excess carbon from the organic material. The silica fume, which is a byproduct of producing silicon metal and ferrosilicon alloys, also can be converted to SiC by heating it with graphite at 1500°C (2730°F). The material formed in the Acheson furnace varies in purity. The silicon carbide "stones" and grains are turned into a fine powder by crushing, and then purified with halogens.

Kneading
The fine grain (sub-micron) powder is then homogeneously mixed with non-oxide sintering aids (a binder) to form a paste. Different binders including organosilicon binders may be used.

Shape Forming
The resulting pasty mixture may be compacted and shaped either by extrusion or by cold isostatic pressing. Extrusion consists in forcing the pasty mixture through a die with an opening. Silicon carbide tubes are produced through extrusion. The properties in the extrusion direction differ from the properties in other directions. Cold isostatic pressing is the powder compaction method conducted at room temperature, and it involves applying pressure from multiple directions through a liquid medium surrounding the compacted part. A flexible mold immersed in a pressurized liquid medium is used. Materials with a uniform anisotropic structure are prepared using an isostatic pressing method. The materials used to produce silicon carbide plates and blocks are manufactured by cold isostatic pressing.

Computer Numerical Control (CNC) Machining
CNC machining is used to machine the surface of the plates or drill the holes on process and services sides in the cylindrical blocks. Due to the very low mechanical strength of the green material, special care is required here. With the help of unique fixture, the components are turned, milled, and drilled according to specific machining parameters.

Sintering
Following the forming stage, the material is sintered in an inert atmosphere at temperatures up to 2300°C (4170°F). During the sintering process, and more precisely between approximately 1900°C (3450°F) and 2150°C (3900°F), the products shrink isostatically by a factor of roughly 20%. The block height, diameter and hole diameters all shrink by roughly 20%. The tube diameter, wall thickness and length also shrink.

Lapping or Grinding
If required, the sintered silicon carbide parts can then be machined to precise tolerances using a very costly range of precision diamond grinding or lapping techniques.

Quality Checks
The finished silicon carbide parts go through a series of dimensional checks, tests and inspections (leak detection, crack detection, pressure testing, etc…). Mechanical properties are carefully checked and monitored after each production batch.

What are the Advantages of Silicon Metal Powder?

Metal silicon powder is a powder made by grinding metal silicon. Good metal silicon powder has a uniform particle size and is very effective when used. Metal silicon is used in ferroalloy smelting. So the question is, why should we use metal silicon powder? In fact, silicon metal powder has many advantages over natural blocks of metallic silicon. However, many people do not know much about what advantages metal silicon powder has in ferroalloy smelting.

Deoxidation
Silicon metal powder contains a certain amount of silicon element, which can produce silicon dioxide through affinity interaction with oxygen. It also reduces the reaction capacity during smelting while deoxidizing, making deoxidation safer.

Application in Silicone Industry
Metal silicon powder can participate in the synthesis of silicone polymers. Through metal silicon powder, high-quality silicon monomers, silicone rubber, silicone oil and other products can be produced.

High Temperature Resistance
Silicon metal powder can be used in the production of refractory materials and powder metallurgy industries. Adding metal silicon powder during smelting can quickly improve the high-temperature resistance of the product, which is usually required by the steelmaking industry.

Wear Resistance
In the production of some wear-resistant castings, adding metal silicon powder can also be used to improve the wear resistance of castings. The use of metal silicon powder can effectively improve the life and quality of castings.

Application in Metallurgical Casting Industry
Silicon metal powder has also been widely used in the metallurgical casting industry. When steelmaking, metal silicon powder can be used as a deoxidizer, alloy additive, etc. The effect is very significant. At the same time, metal silicon powder can also be used in the production of castings.

How Manufacturers Produce Silicon

Reduction Process
The reduction process uses a submerged electric arc furnace for heating silica and coke in high temperatures. This method triggers a reaction where the oxygen is removed, carbon is displaced, and silicon is formed. The reduction process begins with placing the raw materials into the furnace before the lid is placed into position. As electric current forms an arc as it passes through the electrodes in the lid, it generates heat that melts the material. Consequently, the reaction of sand with carbon forms silicon and carbon monoxide. Next, calcium and aluminum impurities are reduced by treating the molten metal with oxygen and air.

Cooling and Crushing
The oxidized material called slag is poured off into large cast-iron trays and cooled. Once the cooling process is complete, the silicon metal is dumped into a truck to break it up for storage. Moreover, jaw or cone crushers are used to reduce the size of the metal based on customer specifications.

Packaging
In most cases, silicon metal is packaged in wooden boxes or large sacks. Furthermore, when the material is in powder form, manufacturers package it in plastic pails, paper bags, and steel drums.

Quality Control Measures During the Production of Metal Silicon Powder

Quality control measures play a vital role in ensuring the consistent and reliable production of metal silicon powder. Throughout the production process, an array of quality control techniques are implemented to meticulously monitor and assess the physical, chemical, and metallurgical properties of the powder. These measures encompass rigorous testing, analysis, and inspection of the raw materials, intermediate products, and final metal silicon powder. By implementing stringent quality control measures, any deviations or defects are promptly identified and rectified, thereby guaranteeing that the produced metal silicon powder adheres to the required standards and specifications.

Common Problem of Silicon Metal Powder

Q: What are applications of silicon metal powder?

A: The use of silicon metal powder mainly has the following aspects:
Industrial silicon powder is widely used in refractory materials, powder metallurgy industry, in order to improve the product's high temperature resistance, wear resistance and oxidation resistance. Its products are widely used in steel-making furnaces, kilns and furnaces.
In the silicone chemical industry, industrial silicon powder is the basic raw material for the synthesis of silicone macromolecule, such as for the production of silicon monomer, silicone oil, silicone rubber preservative, so as to improve the high temperature resistance, electrical insulation, corrosion resistance, corrosion resistance, waterproof and other characteristics of the product.
Industrial silicon powder is made of monocrystalline silicon by pulling, and the silicon wafer processed is widely used in high-tech fields. It is an essential raw material for integrated circuits and electronic components.
Metallurgical casting industry, industrial silicon powder as a non-iron base alloy additive, silicon steel alloy agent, so as to improve the hardenability of steel. Industrial silicon powder can also be used as a reducing agent for some metals, for new ceramic alloys, etc.

Q: Is silicon considered as an metal or non metal?

A: Silicon is neither metal nor non-metal; it's a metalloid, an element that falls somewhere between the two. The category of metalloid is something of a gray area, with no firm definition of what fits the bill, but metalloids generally have properties of both metals and non-metals. They look metallic, but conduct electricity only intermediately well. Silicon is a semiconductor, meaning that it does conduct electricity. Unlike a typical metal, however, silicon gets better at conducting electricity as the temperature increases (metals get worse at conductivity at higher temperatures).

Q: How is silicon metal produced?

A: The inputs to refining or smelting silicon metal are quartz sand and coke (carbon). The high temperature refining (silicon has a melting point of 2570°F) process is energy intensive – requiring approximately 13,000 kilowatt-hours per ton of silicon metal produced. The major producers have direct access to quartz mines and low cost energy.

Q: What are some of the uses of silicon metal?

A: 25 to 30% of silicon metal output is required to make polycrystalline silicon for the semiconductor and solar industry.
45 to 55% of silicon metal is refined for metallurgical grade silicon used to make aluminum alloys or "Silumin"-lightweight and strong metal alloy for the automotive and transportation sectors.
Only 25 to 30% of silicon metal is further refined through a hydro-metallurgical process to make chemical-grade silicon metal for silicone rubber and silanes.

Q: What is sillicon metal?

A: Sillicon metal, also known as crystalline silicon or industrial silicon, is mainly used as an additive for non-ferrous base Alloys.ilicon metal is a product smelted by quartz and coke in the electric furnace. The content of silicon element is about 98%.The remaining impurities are iron, aluminum, calcium, etc.According to the content of iron, aluminum and calcium in silicon metal, silicon metal can be divided into553,441, 3303, 2202, 1101 and other different brands.

Q: How is industrial silicon made?

A: The basic process for producing silicon has remained unchanged for decades: quartz or gravel (SiO2) is blended with a carbon source and superheated in a submerged arc furnace. As the mix heats, the carbon reacts with the oxygen in the quartz and forms CO gas, thereby reducing the quartz to 99% silicon in molten form.

Q: What is the use of silicon industry?

A: Semiconductors are widely used in familiar electric appliances such as personal computers, televisions, smartphones, digital cameras, IC cards, etc. The material most frequently used in semiconductors is Silicon (chemical symbol = Si).

Q: Is industrial silicone safe?

A: It's used for medical, electrical, cooking, and other purposes. Because silicone is considered chemically stable, experts say it's safe to use and likely not toxic. That's led to silicone being widely used in cosmetic and surgical implants to increase the size of body parts like the breasts and butt, for example.

Q: What is the difference between medical and industrial silicone?

A: Industrial grade silicones are typically made from lower purity raw materials than medical or food grade silicones. While this makes them less suitable for use in applications where purity is critical, such as in medical implants, it also makes them less expensive and more flexible.

Q: What's the difference between silicon and silicone?

A: Silicon is a natural chemical element, silicone is a man-made product. The words are often used interchangeably but there are important differences. Whilst silicon is natural, silicone is a man-made polymer derived from silicon. There are also differences with the applications of silicon and silicone.

Q: Is silicon a metal or rubber?

A: Silicones, also known as polysiloxanes, are a family of man-made polymers that are usually liquid or a flexible, rubberlike plastic. The polymers have an inorganic chain of silicon and oxygen atoms with organic side groups attached to the silicon.

Q: Why is silicon in high demand?

A: The global silicon metal market is expected to grow at a significant rate in the coming years, driven by the increasing demand for electronic devices, solar panels, and aluminum production. Silicon metal is a critical raw material used in several industries, including electronics, solar energy, and aluminum production.

Q: What is crystalline silicon made of?

A: Crystalline silicon (c-Si) cells are obtained from thin slices of silicon (wafers) 160–240 μm thick, cut from a single crystal or a block. The type of crystalline cell produced depends on the silicon wafer manufacturing process. The main types of crystalline cells are: monocrystalline.

Q: What is crystalline silicon?

A: Crystalline silicon or (c-Si) Is the crystalline forms of silicon, either polycrystalline silicon (poly-Si, consisting of small crystals), or monocrystalline silicon (mono-Si, a continuous crystal). Crystalline silicon is the dominant semiconducting material used in photovoltaic technology for the production of solar cells. These cells are assembled into solar panels as part of a photovoltaic system to generate solar power from sunlight.
In electronics, crystalline silicon is typically the monocrystalline form of silicon, and is used for producing microchips. This silicon contains much lower impurity levels than those required for solar cells. Production of semiconductor grade silicon involves a chemical purification to produce Hyper-pure Polysilicon, followed by a recrystallization process to grow monocrystalline silicon. The cylindrical boules are then cut into wafers for further processing.
Solar cells made of crystalline silicon are often called conventional, traditional, or first generation solar cells, as they were developed in the 1950s and remained the most common type up to the present time. Because they are produced from 160 to 190 μm thick solar wafers-slices from bulks of solar grade silicon-they are sometimes called wafer-based solar cells.
Solar cells made from c-Si are single-junction cells and are generally more efficient than their rival technologies, which are the second-generation thin-film solar cells, the most important being CdTe, CIGS, and amorphous silicon (a-Si). Amorphous silicon is an allotropic variant of silicon, and amorphous means "without shape" to describe its non-crystalline form.

Q: What is Silicon used for?

A: High-purity silicon metal is used by many industries. In the chemical industry it is used for producing silicon compounds as well as silicon wafers used in photovoltaic solar cells and electronic semiconductors. And aluminum manufacturers use it to improve the already useful properties of aluminum. When used with aluminum, silicon improves its castability, hardness and strength.Besides, aluminum demand has been growing steadily in recent years, as a reflection of the economic activity in both the developed and developing word. This demand of lighter and more economical material has triggered a growth in Silicon metal consumption by aluminum manufacturers.

Q: Why is silicon used?

A: ‍Silicon is used for electronic devices because it is an element with very special properties. One of it's most important properties is that it is a semiconductor. This means that it conducts electricity under some conditions and acts as an insulator under others. Silicon's electrical properties can be modified through a process called doping. These characteristics make it an ideal material for making transistors that amplify electrical signals.Silicon's properties are not the only reason why it is ideal for electronic devices. Silicon is also an abundant element on Earth. It is even the most common element in the Earth's crust. The abundance of Si allows it to be extremely affordable and appealing. It is no wonder why silicon has become the basis of memory chips, computer processors, transistors, and all other electronics.

Q: What other elements used for electronic devices?

A: ‍Silicon is not the only element used for electronic devices. Some applications todays use other more specialized semiconductors, such as Gallium Nitride (GaN). Electrons in GaN move very quickly and the bonds are very tight. This allows it to be operated at higher voltages and more appealing for high-speed high-power transistors for wireless applications. Despite this, Silicon still reigns supreme. Engineers have also always found ways to keep improving silicon devices even when it seemed impossible, so every year the benefits of using silicon seem to grow.

Q: What is ferrosilicon alloy used for?

A: Ferrosilicon is also used for manufacture of silicon, corrosion-resistant and high-temperature-resistant ferrous silicon alloys, and silicon steel for electromotors and transformer cores. In the manufacture of cast iron, ferrosilicon is used for inoculation of the iron to accelerate graphitization.

Q: What is silicone powder used for?

A: It may be used as a lining for iron smelting processes or mud water cannons as it resists wear, temperatures, and oxidation. In addition to the many applications listed above, silicon powder may also be used in the manufacturing of pharmaceuticals, in food & beverage manufacturing, and in biomedical applications.

Q: Is silicon hard or soft?

A: Compared with pure metals and ionic salts, covalent solids such as silicon are hard and brittle because dislocations do not move in them except at high temperatures. A satisfactory explanation for this behavior has been lacking in spite of its great importance for the mechanics of materials and structures.

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Silicon Metal Powder