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Wuxi Maoqian New Material Technology Co.,Ltd.

4 month

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High-purity alumina ceramic agitators (typically containing 99% to 99.9% alumina) &Alumina Ceramic Rods are a crucial tool designed for processes where traditional metal or glass agitators would be unsuitable due to metal contamination, extreme temperatures, or highly corrosive chemical environments.

Here is an overview of their main features, applications, and precautions: 1. Core Characteristics and Advantages

Outstanding purity and no contamination: High-purity alumina does not leach metal ions into the mixture. This is crucial for semiconductor pastes, pharmaceutical compounds, and lithium-ion battery electrode mixtures.

Chemical inertness: Highly resistant to strong acids (such as sulfuric acid, hydrochloric acid), strong bases, and most organic solvents, making it an ideal choice for chemical reactors and electroplating tanks.

Thermal stability: Capable of withstanding continuous working temperatures up to 1600°C to 1700°C and having good thermal shock resistance, suitable for high-temperature synthesis or molten salt agitation.

Mechanical and wear resistance: Mohs hardness of approximately 9 (second only to diamond), ensuring that the agitator is resistant to wear in slurries containing particles (such as ceramic grinding media, mineral slurries), maintaining size stability, and not scratching or wearing out quickly.

Electrical insulation: High dielectric strength and volume resistivity, allowing for safe use in processes involving sensitive electronic equipment or electrolysis. 2. Key Applications in Advanced Manufacturing

Material research and metallurgy: Agitating molten alloys, high-temperature ceramic sintering aids, or grinding mineral slurries. 3. Forms and Customization

These agitators can be provided as simple rod-shaped/rotating shafts, or complex impellers/wheel blades (paddle, turbine, or dispersing wheel designs). Manufacturers typically offer customization services in the following aspects:

Purity grades: 96% (general industrial use), 99%/99.5% (high-performance), 99.9% (semiconductor/ultra-clean).

Sizes: Customizable diameters (e.g., 3 mm to 200 mm) and lengths, usually with polished surfaces (Ra ≤ 0.02 - 0.05 micrometers) to prevent material accumulation.

AlUMINA TECH DATA(Transparent Alumina Ceramic)

ITEM	UNIT	99.9 ALUMINA
Density	G/cm3	3.94
Bending Resistance	Mpa	500
Compressive Strength	Mpa	3300
Elasticity Modulus	Gpa	400
Shock Strength	Mpam/2	5.2
Vaporization Coefficient	M	12
Vickers Hardness	HV0.5	2000
Thermal Expansivity	10-6K-1	8.0
Conductivity	W/MK	28
Thermal Shock Resistance	AT℃	280
Maximum Service Temperature	℃	1750
20℃ Volume Resistance	Ω	≥1015
Dielectric Strength	KV/mm	30
Apparent Porosity	％	0
Permittivity	Er	10
Dielectric Loss Angle	tanδ	0.001

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Wuxi Maoqian New Material Technology Co.,Ltd.

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Main Product: Alumina Ceramics, Zirconia ceramics, Ceramic tubes , Ceramic rods, ceramic rings, crucible

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