Production Equipment

Production Equipment

PRODUCTION EQUIPMENT

Cubic Nanometer Silicon Carbide Micropowder

Cubic nanometer silicon carbide micropowder, also known as β-silicon carbide, β-SiC is close to diamond, with surface finish and polishing performance far superior to white corundum and α-SiC (black silicon carbide and green silicon carbide); at temperatures above 1600°C, β-SiC still possesses ultra-high strength; β-SiC has several times higher electrical conductivity than α-SiC; β-SiC has excellent thermal conductivity and low expansion coefficient, resulting in minimal thermal stress during heating and cooling; β-SiC is a low-temperature crystal form and can undergo a phase transformation above 1800°C; in terms of specific gravity, β-SiC is half that of most alloys, 40% that of steel, and roughly the same as aluminum.

06-23

2025

Cubic Nanometer Silicon Carbide Micropowder
Cubic Nanometer Silicon Carbide Micropowder

Cubic Nanometer Silicon Carbide Micropowder

Cubic nanometer silicon carbide micropowder, also known as β-silicon carbide, β-SiC is close to diamond, with surface finish and polishing performance far superior to white corundum and α-SiC (black silicon carbide and green silicon carbide); at temperatures above 1600°C, β-SiC still possesses ultra-high strength; β-SiC has several times higher electrical conductivity than α-SiC; β-SiC has excellent thermal conductivity and low expansion coefficient, resulting in minimal thermal stress during heating and cooling; β-SiC is a low-temperature crystal form and can undergo a phase transformation above 1800°C; in terms of specific gravity, β-SiC is half that of most alloys, 40% that of steel, and roughly the same as aluminum.

06-23

2025

Cubic Nanometer Silicon Carbide Micropowder
Cubic Nanometer Silicon Carbide Micropowder

Basic Knowledge of Silicon Carbide

Silicon carbide includes black silicon carbide and green silicon carbide. Among them, black silicon carbide is made primarily from quartz sand, petroleum coke, and high-quality silica through high-temperature smelting in a resistance furnace. Its hardness lies between corundum and diamond, with mechanical strength higher than corundum, and it is brittle and sharp.

01-26

2013

Basic Knowledge of Silicon Carbide
Basic Knowledge of Silicon Carbide

Black Silicon Carbide VS Green Silicon Carbide

Differences Between Green Silicon Carbide and Black Silicon Carbide Green silicon carbide and black silicon carbide are basically the same, but their raw materials and manufacturing processes differ. Green silicon carbide has superior hardness and purity compared to black silicon carbide. Its elastic modulus reaches 410 GPa, it does not dissolve under normal temperature and pressure, and only begins to degrade above 1600°C, decomposing at 2815.5°C. Our company produces reaction sintered silicon carbide products, with a normal operating temperature ≤1350°C. Green silicon carbide is suitable for grinding copper, brass, aluminum, gemstones, optical glass, ceramics, and other hard alloys, metals, and hard and brittle non-metallic materials. Its fine powder can also be used as a ceramic material. Table 1-1 Technical Requirements for Siliceous Raw Materials Smelting SiC Type SiO2 Content (%) LOI (%) Residue Amount (%) Green Silicon Carbide >99.3 <0.4 <0.6 Black Silicon Carbide >98.5 <0.4 <1.0 Our company's product raw materials are green silicon carbide, with content above 99.8%. Table 1-2 Performance of Domestic and Foreign Reaction Sintered Silicon Carbide Table 1-2 Application Fields of Silicon Carbide Applications and Characteristics of Silicon Carbide: Both types of silicon carbide belong to α-SiC. Black silicon carbide contains about 95% SiC and has higher toughness than green silicon carbide. It is mostly used for processing materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron, and non-ferrous metals. Green silicon carbide contains about 97% or more SiC, has good sharpness, and is mostly used for processing hard alloys, titanium alloys, and optical glass. It is also used for grinding cylinder sleeves and precision grinding of high-speed steel tools. Main Performance Characteristics of Reaction Sintered Silicon Carbide Ceramic Products: Reaction sintered silicon carbide ceramics have high strength, high hardness, wear resistance, corrosion resistance, strong oxidation resistance, good thermal shock resistance, good thermal conductivity, resistance to extreme cold and heat, and resistance to high-temperature creep. They can be made into nozzles, radiation tubes, desulfurization nozzles, beams, rollers, cold air pipes, thermocouple protection tubes, and various wear-resistant, high-temperature resistant, and corrosion-resistant special-shaped parts. Technical Parameters of Reaction Sintered Silicon Carbide Ceramic Products Item Unit Specification Operating Temperature °C ≤1380 Density g/cm3 3.01 Porosity % <0.1 Flexural Strength MPa 250 (20°C), 280 (1200°C) Elastic Modulus GPa 330 (20°C), 300 (1200°C) Thermal Conductivity W/m·K 45 (1200°C) Thermal Expansion Coefficient K-1×10-6 4.5 Mohs Hardness - 9.6 Our main products include burner nozzles, beams, desulfurization nozzles, thermocouple protection tubes, radiation tubes, square beams, rollers, cold air pipes, crucibles, wear-resistant pipelines, and various special-shaped parts that are resistant to high temperature, wear, and corrosion, as well as wear-resistant, high-temperature resistant, corrosion-resistant water-based 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 industry, aerospace, and military industries. Customized production is available according to customer requirements. Contact Phone: 400-862-9007, 027-59909189 Mobile: 18627727335 (Ms. Liu), 15327437079 (Ms. Song)

10-30

2014

Black Silicon Carbide VS Green Silicon Carbide
Black Silicon Carbide VS Green Silicon Carbide

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!

11-05

2014

Applications of Silicon Carbide Ceramics
Applications of Silicon Carbide Ceramics

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.

05-15

2015

Introduction to Silicon Carbide Ceramic Product Types
Introduction to Silicon Carbide Ceramic Product Types
< 1 > proceed page
中企跨境-全域组件 制作前进入CSS配置样式

在线客服添加返回顶部

右侧在线客服样式 1,2,3 1

图片alt标题设置： Remember to modify: Hubei Zhengchuang New Material Technology Co., Ltd.

表单验证提示文本： Please enter content!

循环体没有内容时： Sorry, content is being added

CSS / JS 文件放置地