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Applications of Silicon Carbide Ceramics

Applications of Silicon Carbide Ceramics

Chemical Industry, Metallurgy Silicon carbide materials have high resistance to erosion by molten iron, slag, and alkali metals, along with high thermal conductivity and wear resistance. From the 1970s to the early 1990s, over 65% of large blast furnaces worldwide adopted silicon nitride bonded silicon carbide materials as furnace body materials, extending blast furnace life by 20% to 40%. Various silicon carbide materials have also been widely used as furnace linings or crucibles in the smelting of aluminum, copper, and zinc. In the chemical and metallurgical industries, ceramic heat exchangers are often used to preheat various gases or liquids to fully utilize the heat from various hot furnace exhaust gases. Energy and Environmental Protection Direct purification of coal gas at high temperatures can fully utilize the sensible heat of the coal gas used in Hexolov heat exchangers. Compared to purification at normal temperature, this greatly improves thermal efficiency. Using high-temperature purified coal gas directly for gas turbine power generation can significantly increase power supply efficiency, reduce harmful emissions, and save water. The use of gas turbine equipment in modern coal-fired power generation systems and environmental protection standards require high-temperature gas direct dust removal. Industrial Kilns Various industrial kilns are widely used in light industry, building materials, electronics, and other sectors. Using combinations of silicon carbide kiln furniture made from different materials can greatly reduce the weight and space occupied by kiln furniture, improve energy utilization, and reduce labor intensity. At the same time, due to the excellent thermal shock resistance of silicon carbide components, the firing heating rate can be accelerated. Various Heating Devices In material sintering, melting, heat treatment, and the glass industry, indirect gas heating is an important method. Compared with direct combustion heating, indirect gas heating can greatly improve thermal efficiency and reduce emissions of harmful gases such as NOx. It also improves temperature stability and ensures control of the furnace atmosphere. Additionally, many industrial heating processes require isolation of the workpiece from the combustion environment. Heating Elements The important electrical conductivity of silicon carbide makes it the primary material for manufacturing heating elements for furnaces operating above 1000°C. Silicon carbide heating elements are the main product of silicon carbide materials and have a large market. In China, the operating temperature of related products has long remained below 1400°C, while since the 1990s, developed countries have generally increased the operating temperature of silicon carbide heating elements to 1600°C, for example, Germany's Cesi-wid company and Japan's Tokai High Heat Co., Ltd. Compared with foreign products, the cold end/hot zone resistance ratio of domestic products is generally only 1:10, lower than the foreign level of 1:15, causing waste of electrical resources. Mechanical Seals To improve performance, save fuel, and extend warranty periods, the automotive industry has higher requirements for cooling systems. Due to increased temperature and pressure in automotive cooling systems, water pumps are required to operate at higher speeds and bear higher loads. One important factor in extending water pump service life is the mechanical seal. Silicon Carbide Composite Materials for Nuclear Industry Silicon carbide materials have low neutron activation behavior (radioactivity under neutron irradiation), low decay heat, low gas permeability (especially to nitrogen), and excellent high-temperature mechanical properties, making them suitable for structural materials in nuclear power plants. For example, the ARIFS nuclear power plant in the United States selected SiC fiber-reinforced SiC as cladding material. With the development of nuclear power, the demand for high-performance silicon carbide materials will greatly increase. Conclusion From the above summary of silicon carbide material preparation and engineering applications, it is clear that silicon carbide materials are currently the most promising advanced engineering ceramics for industrialization. They include not only high-performance fine ceramics but also cover silicon carbide products of various performance grades from low to high. Silicon carbide materials play an important role in future high-tech fields such as ceramic engines and have broad and untapped markets in energy, metallurgy, machinery, building materials, chemical industries, and more. Currently, the positioning of silicon carbide structural ceramic products in China should focus on developing various products with large market demand, while various high-performance fine ceramics or composites serve as research and development targets. Besides developing high-performance materials, various high-temperature components and load-bearing parts should become the main products currently developed. Our main products include: burner nozzles, beams, desulfurization nozzles, thermocouple protection tubes, radiation tubes, square beams, roller rods, cold air pipes, crucibles, wear-resistant pipelines, and various special-shaped parts resistant to high temperature, wear, and corrosion, as well as wear-resistant, high-temperature resistant, corrosion-resistant aqueous metal ceramic glaze coatings. These are widely used in daily porcelain, sanitary ware, electrical porcelain, high-temperature kilns, machinery, pumps, desulfurization and environmental protection, boilers, papermaking, metallurgy, petroleum, chemical, aerospace, and military industries. Customized production is available according to customer requirements. Contact phone: 027-59909189 400-862-9007 Mobile: 18627727335 15327437079 Email: hblcxcl@126.com Welcome to inquire and purchase!

05

2014

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11

New Breakthrough in the Production of Grinding (Wear-Resistant) Buckets

New Breakthrough in the Production of Grinding (Wear-Resistant) Buckets

After several months of experimental research by the company's R&D personnel, through formula adjustments, molding, firing, and processing improvements, our company successfully increased the pass rate of silicon carbide grinding barrels to over 80%. At the same time, the molding time was shortened and the inspection methods were improved, meeting customer delivery deadlines, greatly enhancing product quality, ensuring customer interests, and earning a good reputation.

24

2014

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11

Our company jointly applied with Wuhan University of Technology for the project "Research and Application of Key Technologies for New High-Efficiency Heat Storage Devices"

Our company jointly applied with Wuhan University of Technology for the project "Research and Application of Key Technologies for New High-Efficiency Heat Storage Devices"

Today, our company jointly applied with Wuhan University of Technology for the project "Research and Application of Key Technologies for New High-Efficiency Heat Storage Devices." This project will play a key role in the comprehensive utilization of industrial thermal energy in China and make significant contributions to energy conservation and environmental protection. Meanwhile, our company has signed a doctoral research platform agreement with the School of Materials Science and Engineering at Wuhan University of Technology, providing strong support for our company's materials research and development.

17

2014

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12

Analysis of Energy-saving Status of Kilns in the Ceramic Industry

Analysis of Energy-saving Status of Kilns in the Ceramic Industry

Modern architectural sanitary ceramics encompass the production of sanitary ceramics, architectural ceramics, arts and crafts ceramics, glazed products, and auxiliary materials for architectural sanitary ceramics such as colored glazes and frits. When discussing energy saving in architectural sanitary ceramics, we usually refer to architectural sanitary ceramics and their related industries. Of course, within these industrial systems, architectural sanitary ceramics, especially architectural ceramics, are the main products. Therefore, discussions on energy saving should focus on the primary issues. Currently, the kilns used in architectural sanitary ceramics and related industries roughly include tunnel kilns, track kilns, shuttle kilns, push plate kilns, frit kilns, etc. Some industries also involve rotary kilns and bell kilns.

27

2015

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01

Introduction to Silicon Carbide Ceramic Product Types

Introduction to Silicon Carbide Ceramic Product Types

Silicon Carbide Ceramics Silicon carbide ceramics have high strength, high thermal conductivity, good shock resistance, oxidation resistance, wear resistance, and corrosion resistance, making them excellent high-temperature performance materials and a high-quality ceramic material. They are widely used in metallurgy, energy, chemical industries, and others. Initially, silicon carbide ceramic materials used clay, SiO2, silicates, mullite, and other binders. With the application of high-tech methods, new types of silicon carbide products have been widely developed, such as silicon nitride-bonded silicon carbide, silicon oxynitride-bonded silicon carbide, reaction-sintered silicon carbide, and recrystallized carbon.

15

2015

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05

Hubei Zhengchuang's "Recrystallized Products" are now online!

Hubei Zhengchuang's "Recrystallized Products" are now online!

To better meet market demands, Zhengchuang Company completed the second phase of the Langchi Company project from March to July 2014, and it is now fully operational. With the completion of the second phase, the company is no longer limited to the production of reaction-sintered silicon carbide products, having gradually added processes for pressureless sintering furnaces and recrystallized silicon carbide products. Currently, recrystallized silicon carbide products are available online, and we welcome inquiries and orders from new and existing customers!

15

2015

/

05

Langchi Youth Expands Market Outreach, Leading a New Trend of Youthfulness

Langchi Youth Expands Market Outreach, Leading a New Trend of Youthfulness

Hubei Langchi Company, a secondary subsidiary of Beihu Metallurgical Materials Company, is a vibrant enterprise led mainly by young employees. The company currently has about 110 young employees, mainly distributed in production, research and development, and sales. It is a high-tech enterprise with silicon carbide ceramics as its main product. Since its establishment, the company has set up a dedicated youth sales team to develop the domestic silicon carbide ceramics market. After two years of development and integration, the team now has more than 20 members and is divided into five groups based on business regions: the provincial group (including WISCO), Guangdong group, Hunan group, Southwest group, and

13

2015

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10

Great news! Scan the QR code to follow us from August 8 to August 18 for special discounts!

Great news! Scan the QR code to follow us from August 8 to August 18 for special discounts!

Great news! From August 8 to August 18, scan the QR code to follow us and enjoy discounts! Hubei Langchi New Materials Co., Ltd. sincerely thanks new and old customers for their support and is now launching a series of product discounts! Hubei Langchi New Materials Co., Ltd. is a high-tech enterprise specializing in the production of reaction sintered silicon carbide ceramic products. The company integrates research and development, production, sales, and service, with a total investment of 130 million yuan, covering an area of 90 acres. It owns the world's most advanced high-temperature vacuum reaction sintering large kilns, various machining equipment, and product testing equipment. The production equipment and technology have reached the domestic advanced level. The company's main products include:

05

2016

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06

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