99 alumina ceramic heating sleeve

99 alumina ceramic heating sleeve is a high temperature resistant and corrosion-resistant protective sleeve made of high-purity alumina (Al ₂ O3 content ≥ 99%). Specially designed for high temperature, corrosive, and high wear industrial environments, providing reliable protection for key components such as heating elements, thermocouples, and sensors, significantly extending equipment service life and improving process stability.

Core advantages of the product

1. Excellent high temperature resistance performance
   -Extremely high temperature resistance: Long term use temperature can reach 1600 ° C, short-term can withstand high temperature of 1800 ° C.
   -Excellent thermal stability: low thermal expansion coefficient, strong thermal shock resistance, able to withstand rapid temperature changes without cracking.
   -High thermal conductivity efficiency: ensuring fast and uniform heat transfer, improving energy efficiency.
2. Excellent chemical and physical properties
   -Strong corrosion resistance: resistant to the corrosion of the vast majority of acids, alkalis, and molten metals (except for hydrofluoric acid and strong alkali high-temperature environments).
   -High hardness and wear resistance: The Mohs hardness reaches level 9, second only to diamond, effectively resisting dust and particle erosion.
   -Excellent electrical insulation: maintains high insulation resistance at high temperatures, ensuring electrical safety of equipment.
3. Structural stability and long lifespan
   -High mechanical strength: high bending and compressive strength, sturdy structure.
   -Low porosity: The dense sintering process ensures almost zero porosity, prevents medium infiltration, and extends service life.
   -High surface smoothness: not easy to scale or adhere, easy to clean and maintain.

Main application areas
This product is widely used in industrial scenarios with strict requirements for temperature, corrosion resistance, and reliability:
-Semiconductor manufacturing industry: wafer loading and heating protection in diffusion furnaces and CVD/LPD equipment.
-Metallurgical industry: Temperature probes and heating element protection in metal melting and heat treatment furnaces.
-Glass and Ceramic Industry: Temperature Sensor Sleeves for High Temperature Kilns and Glass Melting Pools.
-Chemical and Environmental Protection: Protection of Detection and Heating Components in High Temperature Corrosive Gas and Waste Liquid Treatment Equipment.
-New energy materials: sintering of positive electrode materials for lithium batteries, high-temperature processes such as photovoltaic polycrystalline silicon ingot furnaces.
-Laboratory and Research: Core protective components for high-temperature furnaces and analytical instruments.

What key issues can we solve?

1. Short lifespan of heating elements/sensors: In high-temperature corrosive environments, metal or ordinary ceramic sleeves are prone to wear and tear. Our product can extend the lifespan of components by 3-5 times.
2. Inaccurate temperature measurement and control: The casing material reacts or deforms at high temperatures, affecting the accuracy of temperature measurement. 99 alumina ceramics have stable chemical properties, ensuring accurate and reliable measurements.
3. Production interruption and high maintenance costs: frequent replacement of damaged casing leads to downtime. Our product’s high reliability significantly reduces unexpected downtime and lowers overall maintenance costs.
4. Polluting process medium: Impurities from material precipitation contaminate raw materials. High purity alumina ensures process cleanliness and improves product yield.
5. Insufficient performance under harsh working conditions: Ordinary materials quickly fail under strong wear, corrosion, and rapid cooling and heating conditions. Our product is designed specifically for extreme conditions.

Customer Case (Anonymous)

1. A multinational semiconductor equipment manufacturer
   -Problem: The original quartz casing has a high rupture rate during the rapid temperature rise and fall process, resulting in contamination and shutdown of the crystal boat.
   -Solution: Customize a closed end 99 alumina ceramic heating tube, optimize wall thickness and transition curvature.
   -Effect: The casing rupture rate has decreased by 95%, the product maintenance cycle has been extended from 3 months to 18 months, and maintenance costs have been saved by over 2 million yuan annually.
2. Large scale special steel enterprises
   -Problem: The metal protective sleeve used for temperature measurement of molten steel consumes very quickly and needs to be replaced every shift, which affects continuous production and data continuity.
   -Solution: Provide thickened 99 alumina ceramic sleeves with anti slag coating.
   -Effect: The average service life of a single casing has been increased from 8 hours to 7 days, the stability of temperature measurement data has been improved, and the annual cost of consumables has been saved by about 1.5 million yuan.
3. Renowned supplier of new energy battery materials
   -Problem: In the sintering furnace of the positive electrode material, the atmosphere is highly corrosive, and the existing sleeve deforms and temperature drifts after one month of use.
   -Solution: Customize high-density, low porosity formula and perform surface polishing treatment.
   -Effect: The service life of the casing is extended to more than 6 months, the temperature uniformity inside the furnace is improved, and the consistency of product batches is significantly improved.

99 alumina ceramic heating sleeve is not only a component, but also the key to ensuring the stability, safety, and economy of your high-temperature process. Facing harsh working conditions, choosing a truly reliable material solution means choosing more efficient and durable productivity.
If you are looking for solutions for high-temperature and corrosion-resistant protective sleeves, or are dissatisfied with the performance of existing components, please feel free to contact us at any time.

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.