The Mohs hardness is as high as about 9, second only to diamond. It has super abrasion resistance and can maintain a good state in a working environment with high speed operation, high friction and high load. It effectively reduces dimensional changes and performance degradation caused by wear and tear, greatly extending the service life.
It has excellent compressive strength and flexural strength and can withstand large mechanical external forces. Whether it is static pressure or dynamic impact force, it can ensure its own structural stability and provide a powerful mechanical performance guarantee for applications in various harsh mechanical working conditions.
Its melting point exceeds 1600°C, and it has good thermal stability. It is not easy to deform, soften or ablate in a high-temperature environment and can operate stably for a long time. This makes it particularly suitable for high-temperature operation scenarios such as high-temperature industrial furnaces and aerospace engines.
It shows excellent resistance to most corrosive chemical substances such as acids, alkalis and salts. In a complex chemical environment, it can maintain its own chemical properties unchanged and ensure the integrity and functionality of the product. It is widely used in fields such as chemical industry and electronics that have high requirements for chemical stability.
As an excellent electrical insulator, with the increase of alumina purity, its insulation performance is even more outstanding. Each millimeter thickness can withstand more than 800 volts of voltage and can be safely and reliably applied in occasions that require insulation protection such as high-voltage electrical equipment and electronic circuits.
The surface is relatively smooth, the friction coefficient is low, and it has a certain degree of self-lubricating property. When used in cooperation with other components, it can effectively reduce friction loss and energy loss, and at the same time help improve the operating efficiency and stability of the overall system.
During processing, use and changes in different environmental conditions, it can accurately maintain its own size and shape, and almost no obvious shrinkage, expansion or deformation will occur. This is a crucial characteristic for application scenarios with high precision requirements, such as precision machining and electronics manufacturing.
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Property
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Unit
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92% Alumina Ceramic
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95% Alumina Ceramic
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99% Alumina Ceramic
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Density
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g/cm3
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≥3.63
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≥3.68
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≥3.83
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Water absorption
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%
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O
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O
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O
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Sintering temperature
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°C
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1500-1700
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1600-1800
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1700-1800
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Hardness
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HV
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≥1400
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≥1500
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≥1650
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Flexural strength
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Kgf/cm2
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3000
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3000
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3000
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Compressive strength
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Kgf/cm2
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24000
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25000
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26000
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Fracture toughness
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Map.m3/2
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3~4
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3~4
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4~5
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Maximum temperature
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°C
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1600
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1700
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1800
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Coefficient of thermal expansion
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/°C
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8*10-6
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8*10-6
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8*10-6
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Heat shock
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T(°C)
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220
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220
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220
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Thermal conductivity
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W/m.k(25-300°C)
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25 14
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25 14
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25 14
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20°C
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>1012
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>1012
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We provide alumina ceramic rods in various specifications to meet the individualized needs of different customers. The common specification parameters are as follows:
It varies from several millimeters (such as 3mm, 5mm) to dozens of millimeters (such as 30mm, 50mm). Special diameter sizes can be customized according to specific application scenarios.
Generally, it covers a range from as short as several tens of millimeters (such as 10mm) to as long as several millimeters (such as 100mm, 300m). Customized length specifications according to customer requirements are also accepted.
According to different processing technologies and customers’ requirements for dimensional precision, products of different precision grades can be provided. The highest precision can reach micron level, meeting the stringent requirements of high-precision equipment components.
As a key supporting component of electronic components, such as the base for making integrated circuits, insulators, substrates in semiconductor packaging, etc., with its excellent insulation performance and high-temperature stability, it ensures the stable and reliable operation of electronic equipment under complex working conditions and effectively improves the performance and service life of electronic equipment.
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Bearings and seals: Ceramic bearings and sealing parts made of it reduce friction and wear in high-speed rotating machine tools, aero engines, precision motors and other equipment, improve the rotational accuracy and sealing performance of the equipment, reduce the number of maintenance times, and extend the overall service life of the equipment.
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Cutting tools: Alumina ceramic cutting tools show advantages such as high-speed cutting, high-precision processing, and good cutting edge durability in the field of metal cutting processing, especially for cutting high-hardness metal materials (such as quenched steel, alloy steel, etc.), greatly improving processing efficiency and product quality.
Used to manufacture various corrosion-resistant chemical equipment components, including the stirring shaft, pipeline, valve, pump body, etc. of the reaction kettle. It can resist the erosion of various chemical media, ensure the safety, stability and continuity of the chemical production process, and effectively reduce the safety risks and maintenance costs caused by equipment corrosion.
Strictly follow international advanced production standards and quality control systems. Every link from raw material procurement, production and processing to finished product inspection is strictly controlled to ensure providing customers with high-quality and stable-performance alumina ceramic rod products.
Have a professional R & D and production team. Be able to provide personalized customized services according to customers’ specific application scenarios, special performance requirements and size specifications, etc., helping customers create product solutions that best fit their own business needs.
Although the initial investment in products may be slightly higher than some traditional materials, considering its extremely long service life, low maintenance cost and factors such as production efficiency improvement it can bring, in the long run, it can bring significant cost savings and economic benefits to customers.
To ensure that the products are not damaged during transportation and storage, we adopt professional packaging methods. Usually, customized plastic foam, cartons, wooden boxes, etc. are used for layered packaging, which provides good cushioning and fixed protection for ceramic rods. At the same time, we cooperate with many professional logistics companies to ensure that the products can be safely and timely delivered to customers.
