Silicon Carbide Products
Professional team
After more than 20 years of development and experience accumulation. Our union has strong research and development capability, R&D centre is full responsible for test, research and product innovation, with 31 senior engineers, 96 engineers and 179 assistant engineers.
Complete range of products
We produce and operate refractory raw materials, refractory products, ceramic products, graphite electrodes, refractory binders, wear-resistant, acid-resistant and heat-resistant products, special building materials, silicon carbide products, refractory equipment, molds, copper molds, copper tubes, copper plates, Stainless steel products, slag pot, etc., including import and export. Imported calcium stabilized zirconia, yttria stabilized zirconia, quartz sand, graphite, andalusite, zirconium corundum etc.
High quality service
Zibo runjin has been persisting in a service philosophy of "Customers's Satisfaction is our eternal pursuit", taken "building a Worldwide first -class refractory manufactures" as the mission, and held "co-creation, co-operation, co-prograss, win-win"as its core values.Relying on management and technology accumulation during past many years, based on its over many years reputation as guarantee. Zibo runjin is doing its best to offer refractory system solutions with values added to achieve co-progress with our customers.
Advanced equipment
There are five high-quality clay high alumina brick production lines, two production lines for andalusite brick and mullite brick, five silica brick production lines, three production lines for continuous casting, One carbon and silicon carbide composite refractory production line ,One production line for tundish stabilizer, impact plate and slag retaining wall, a production line for high-grade light products, Pure oxide refractory production line, Unshaped refractory production line, Non-fired brick refractory product production line.
What Is Silicon Carbide
Silicon carbide (SiC) is a synthetic, semiconducting fine ceramic that excels in a wide cross-section of industrial markets. Manufacturers benefit from an eclectic offering of silicon carbide grades due to the availability of both high-density and open porous structures. Combined with the material's outstanding high-temperature strength and thermal shock resistance, alongside inherently impressive mechanical properties, silicon carbide is one of the most versatile refractory ceramics worldwide.
-
Oxide Bonded Silicon Carbide BricksSilicon carbide is a refractory material made of SiC as the main raw material. Hardness 9. It isAdd to Inquiry -
Silicon Carbide Shed PlateSilicon carbide shed board is a certain size board made of silicon carbide ceramics, generally usedAdd to Inquiry -
Silicon Carbide Fine PowderGreen silicon carbide micro-powder is green, with crystal structure, high hardness, strong grindingAdd to Inquiry
- Tel: +86-13606432571
- Fax: +86-533-2882161
- Email: cyhu@163169.net
- Add: NO.188 Huaguang Road, Zhangdian, Zibo, Shandong, China Yulong Building B1401
The combination of silicon with carbon provides this material with excellent mechanical, chemical and thermal properties, including:
● High thermal conductivity
● Low thermal expansion and excellent thermal shock resistance
● Low power and switching losses
● High energy efficiency
● High operating frequency and temperature (operating up to 200°c junction)
● Small die size (with the same breakdown voltage)
● Intrinsic body diode
● Excellent thermal management which reduces cooling requirements
● Long lifetime
The simplest silicon carbide manufacturing method involves melting silica sand and carbon, such as coal, at high temperatures―up to 2500 degrees Celsius. Darker, more common versions of silicon carbide often include iron and carbon impurities, but pure SiC crystals are colorless and form when silicon carbide sublimes at 2700 degrees Celsius. Once heated, these crystals deposit onto graphite at a cooler temperature in a process known as the Lely method.
Lely method: During this process, a granite crucible heats to a very high temperature, usually by way of induction, to sublimate silicon carbide powder. A graphite rod with lower temperature suspends in the gaseous mixture, which inherently allows the pure silicon carbide to deposit and form crystals.
Chemical vapor deposition: Alternatively, manufacturers grow cubic SiC using chemical vapor deposition, which is commonly used in carbon-based synthesis processes and used in the semiconductor industry. In this method, a specialized chemical blend of gases enters a vacuum environment and combines before depositing onto a substrate.
For use in commercial engineering applications Silicon Carbide products are produced in three forms. These are:
● Sintered silicon carbide (SSC)
● Nitride bonded silicon carbide (NBSC)
● Reaction bonded silicon carbide (RBSC)
Other variations of the compound include clay bonded silicon carbide and SiAlON bonded silicon carbide. There is also chemical vapor deposited silicon carbide called CVD Silicon Carbide, which is an extremely pure form of the compound.
To sinter the Silicon Carbide its is necessary to add sintering aids which help to form a liquid phase at the sintering temperature which allows the grains of silicon carbide to bond together.
Silicon carbide, also called carborundum, is a compound made from silicon and carbon. This chemical compound is found in a mineral called moissanite.
Although it is difficult to find naturally occurring silicon carbide on earth, it is quite abundant in space. Silicon carbide is one of the most useful chemical compounds in the world today. Its application cuts across a large number of industries.
Silicon carbide used in military bulletproof armor
Silicon carbide is used to manufacture bulletproof armor. The property of this compound that makes it to be applied for such a purpose is its hardness. Bullets and other harmful objects will have to contend with the hard ceramic blocks that silicon carbide forms. Bullets can't penetrate the ceramic blocks.
Silicon carbide used in semiconductors
Silicon carbide becomes a semiconductor when dopants are added to it. Dopants like boron and aluminum added to silicon carbide make it become a p-type semiconductor. On the other hand, dopants such as nitrogen and phosphorus added to silicon carbide make it become an n-type semiconductor.
Silicon carbide used in abrasives
Silicon carbide is commonly used as an abrasive because of how hard it is. It is used in the manufacture of grinding wheels, cutting tools, and sandpaper. Silicon carbide abrasives are usually cheaper than other abrasives of similar quality. The abrasives are used to grind materials such as steel, aluminum, cast iron, and rubber.
Silicon carbide used in electric vehicles
Silicon carbide is a better choice over silicon for powering electric vehicles. Electric vehicles powered by silicon carbide are highly efficient and cost-effective. At present, many well-known companies have used silicon carbide to improve efficiency and range when manufacturing electric vehicles, such as tesla.
Silicon carbide used in jewelry
Structurally similar to diamond, yet more lustrous, cheaper, more durable, and lighter than diamond, silicon carbide is a well-deserved alternative to diamond in the jewelry industry.
Silicon carbide used in fuel
In addition to its other uses, silicon carbide is used as fuel. It is used as a fuel in steel manufacture and produces purer steel than most other fuels. It is also a cheaper and more environmentally-friendly fuel.
Silicon carbide used in LEDs
The first set of light-emitting diodes (LEDs) to be produced made use of silicon carbide technology. It was used to manufacture blue, red, and yellow leds. LEDs are used in televisions, display boards, and computers.
How Does Beta Silicon Carbide Differ From Alpha Silicon Carbide
Beta silicon carbide is entirely distinct from alpha silicon carbide, and it shouldn't be confused for one of the 70-something variations of alpha silicon carbide. What distinguishes the two forms of silicon carbide is the microcrystalline structure.
Whereas beta silicon carbide has a cubic microcrystalline structure, alpha crystalline carbide has a spherical microcrystalline structure. Alpha can be further segmented into variants that are more hexagonal or rhombohedral, but these all are variations of a spherical underpinning.
Both beta and alpha silicon carbides retain the quintessential properties of this compound. They both offer electric and heat conduction to an extent, and they both have minimal thermal expansion.
Both also are resistant to high temperatures, although alpha has greater temperature resistance. Alpha silicon carbide is made at temperatures exceeding 2,400°C, whereas beta silicon carbide is normally made in the 1,500 to 1,600°C range. At about 2100°C, beta will convert into alpha.
The different crystalline structure of alpha silicon carbide does give it some different properties than beta, however. Compared to beta silicon carbide, alpha silicon carbide isn't as dense and doesn't have the same self-sharpness.
What Are the Advantages of Silicon Carbide
At the foundation, silicon carbide (SiC) is considered a wide-bandgap semiconductor which has its inherent advantages over conventional Si semiconductors. These material properties of SiC result in higher:
Breakdown field
The higher breakdown field allows the device to withstand higher voltages for a given area. This gives device designers the ability to increase the area devoted to current flow for the same die size which lowers the devices resistance for a given area, Rsp. The devices resistance is directly correlated to the conduction power losses, so a smaller Rsp will result in lower losses, yielding higher efficiency.
Electron drift velocity
Electron drift velocity is how fast the electrons travel in a material due to an electric field. In the case of SiC semiconductors, the electron drift velocity is two times higher than that of Si based semiconductors. The faster the electrons move, the faster the device can switch on and off. A system designer gets two benefits from this faster switching. First, lower power losses during the transition time from on and off. Second, higher switching frequencies allow for the use of smaller magnetics and capacitors.
Thermal conductivity
The thermal conductivity of SiC is roughly three times better than Si and ties all the benefits from the other properties together. Thermal conductivity translates to how fast the heat is transferred from the semiconductor junction to the outside environment. This means that SiC devices can operate up to 200°C compared to the typical 150°C limit of Si.
Our Factory
After more than 20 years of development and experience accumulation, The main production plants of Runjin technology and trade complex are as follows:
Qingdao Huaye New Material co., ltd.
Shandong Daqiao New Material co., Ltd.
Yangquan Wanglong Refarctories co.Ltd.
Anshan Aoan High Temperature Material Co., Ltd.
It's total assets value has reached 1.05 Billion RMB and currently employs 4078 personnel, including 544 refractory technical personnel and 3145 well trained workers
The annual production capacity has exceeded 30 thousands tons with comprehensive seven series refractories as following: Fire clay bricks, Alumina bricks, Con-casting refractory, Binder for refractory, Fine Ceramics, Graphite electrode, acid resistant brick, Silicon carbon crucible, Silicon carbon plate, Special building material, Cellulose ether, Super chamotte raw material and Synthesized mullite material, Magnesia raw material, etc. Products are applied to worldwide industries of metallurgy, building material, non-ferrous metal smelting, petrochemical, nonferrous, electronics, cement industry and so on. Approx. 68% products are supplied to metallurgy industry. China leading Steel group.-e.g.Baowu steel, Anshan steel, WISCO, SHOUGANG, TISCO, PANGANG, HBIS, SHAGANG, which belongs to same parent company are our main customers in domestic market.in oversea market, Zibo runjin is a refractory supplied of Arcelor - mittal, POSCO Guangyang steel, HYUNDAI steel, Nippon steel, JFE steel, US United Steel, Erdemir group., Danieli, SVAI and working together with famous refractory manufactures -e.g.Chosun refractories, ANH refractories and Krosaki refractories etc. Zibo runjin also has a good cooperation with world famous engineering companies .
our union has strong research and development capability, R&D centre is full responsible for test, research and product innovation, with 31 senior engineers, 96 engineers and 179 assistant engineers. Zibo runjin enables itself to be one of then leading refractory manufactures for supplying andalusite bricks for CDQ furnace, silicon bricks, AG con-casting refractory and so.
Zibo runjin has been persisting in a service philosophy of "Customers's Satisfaction is our eternal pursuit", taken "building a Worldwide first -class refractory manufactures" as the mission, and held "co-creation, co-operation, co-prograss, win-win"as its core values.Relying on management and technology accumulation during past many years, based on its over many years reputation as guarantee. Zibo runjin is doing its best to offer refractory system solutions with values added to achieve co-progress with our customers.
FAQ
As one of the leading silicon carbide products suppliers in China, we warmly welcome you to buy or wholesale high-grade silicon carbide products in stock here from our factory. All our products are with high quality and competitive price.
Kiln furniture, SiC crucibles, SiC Saggar