Rotating body alumina ceramic blades

The rotary body alumina ceramic blade is a rotating symmetrical structural component made of high-purity alumina (Al₂O₃) material through precise forming, sintering and processing techniques. This product features outstanding mechanical strength, wear resistance, corrosion resistance and high-temperature stability. It is specially designed for harsh industrial environments and is widely used in multiple industrial fields.

Core product advantages

1. Outstanding material performance

• High hardness and wear resistance: The hardness of alumina ceramics can reach over HRA85, and its wear resistance is 5 to 10 times that of ordinary metal materials, significantly extending its service life
• Excellent corrosion resistance: Resistant to acid and alkali corrosion, suitable for chemical medium environments
• High-temperature stability: It can operate for a long time at temperatures below 1200℃ while maintaining dimensional stability
• Low density: With a density of only 3.6-3.9g/cm³, it is approximately 50% lighter than metals, reducing the inertial load on rotating parts

1. Precision manufacturing process
   Isostatic pressing or injection molding technology is adopted to ensure the uniformity of the material
   Precision machining ensures that the dimensional tolerance can reach ±0.01mm
   The surface finish Ra is ≤0.2μm, reducing fluid resistance
2. Optimized structural design
   The rotary body structure achieves the best hydrodynamic characteristics
   Finite element analysis optimizes stress distribution
   The internal flow channel structure can be designed according to application requirements

The key problem to be solved

1. The problem of excessive wear
   Traditional metal blades wear out rapidly in media containing particulate matter, leading to frequent replacement and shutdown. Ceramic blades can extend the service life by 3 to 8 times.
2. Corrosion failure issue
   Metal blades are prone to corrosion and failure in acidic or alkaline environments. Alumina ceramics are almost unaffected by chemical corrosion.
3. High-temperature deformation problem
   Metal blades are prone to deformation and failure in high-temperature environments, while ceramic blades maintain excellent high-temperature stability.
4. The issue of declining efficiency
   The geometry of the worn blades changes, resulting in a decrease in equipment efficiency. Ceramic blades maintain their designed geometric shapes for a long time.

Application field

1. Chemical industry
   Centrifugal pump impeller
   Agitator blades
   Valve assembly
   Sealing ring
2. Electricity and Energy

• Wind turbine blades
• Flue gas treatment equipment
• Coal conveying system

1. Environmental Protection and water Treatment

• Sewage treatment agitator
  Desulfurization pump impeller
  Seawater desalination equipment

1. Mining and Metallurgy

• Slurry pump impeller
  Mineral processing equipment
  High-temperature flue gas fan

1. Other industrial fields
   Food processing equipment
   Pharmaceutical machinery
   Papermaking industry

Customized service for specifications and dimensions

1. Standard size range

• Diameter: 10mm-500mm
• Thickness: 2mm-50mm
• Installation hole diameter: Customized according to customer requirements

1. Material grade selection
   -95% alumina: Economical type, suitable for general wear environments
   -99% alumina: Standard type, balancing performance and cost
   -99.5% alumina: High-end type, extremely wear-resistant and corrosion-resistant
2. Customized service process
3. Requirement analysis: The technical team communicates with the customer about the working condition parameters
4. Scheme Design: Provide suggestions on material selection and structural design
5. Sample production: Small-batch trial production and testing verification
6. Mass production: Large-scale manufacturing and quality control
7. Technical Support: Installation guidance and usage training
8. Special processing options

• Surface polishing treatment
  Laser marking marking
• Specific coating enhancement
  The paired components fit precisely

Application Case
Case One: Renovation of centrifugal pumps in a large chemical enterprise
Problem: When transporting corrosive media containing solid particles, the average service life of the 316L stainless steel impeller is only three months, and it is frequently shut down for replacement.
Solution: Adopt 99% alumina ceramic impellers and optimize the curvature and thickness distribution of the blades.
Effect: Service life is extended to 24 months, pump efficiency is increased by 8%, and annual maintenance cost is reduced by 65%.
Case Two: Flue Gas Desulfurization System in Power Plants
The impeller of the desulfurization circulating pump is severely corroded and worn in acidic slurry with a pH of 2-3, and it needs to be replaced every six months.
Solution: Customized 99.5% alumina ceramic impeller, surface polished to Ra0.1μm.
Effect: The impeller has been in good condition after continuous operation for 18 months, and its expected service life can reach more than 36 months.
Case Three: Mine Tailings Conveying System
The impeller of the high-concentration slurry pump is severely worn and needs to be welded on average every two weeks and replaced every three months.
Solution: Adopt toughened alumina ceramic impellers with edge reinforcement design.
Effect: No significant wear and tear after continuous use for 9 months, and the replacement frequency is reduced by 85%.

If you are currently confronted with the problems of short lifespan and high maintenance costs of wear-resistant components, our ceramic blade expert team will provide you with targeted solutions.
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.