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Evde / Ürünler / silikon karbid seramik / 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls
Kalite 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls Fabrika
Kalite 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls Fabrika
Kalite 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls Fabrika
Kalite 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls Fabrika

9-10mm Pressureless Sintered Silicon Carbide Grinding Balls

Basic Properties
Place of Origin: Çin
Brand Name: KEGU
Model Number: Özelleştirilebilir
Trading Properties
Minimum Order Quantity: Pazarlık edilebilir
Price: pazarlık edilebilir
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Etiketler

SİLİKON KARBÜR SERAMİKLER

Basınçsız Sinterlenmiş SIC

Sic Seramik
Ürün Özetleri
9-10mm Pressureless Sintered Silicon Carbide Grinding Balls 9-10mm Pressureless Sintered Silicon Carbide Grinding Balls are medium-to-large ceramic milling media specifically designed for drum ball mills. Engineered for coarse grinding and intermediate comminution of high-hardness, brittle materials...

Ürün Ayrıntıları

Vurgulamak:

10mm Pressureless Sintered Grinding Balls

,

Sintered Silicon Carbide Grinding Balls
Ürün Tanımı
9-10mm Pressureless Sintered Silicon Carbide Grinding Balls
9-10mm Pressureless Sintered Silicon Carbide Grinding Balls are medium-to-large ceramic milling media specifically designed for drum ball mills. Engineered for coarse grinding and intermediate comminution of high-hardness, brittle materials, this size range offers optimal balance between impact momentum and specific surface area.
Product Positioning
These grinding balls are ideal for high-throughput applications including mineral processing, specialty ceramic raw materials, pre-crushing of superabrasives, and coarse milling of new energy battery material precursors. Manufactured from nano-sized silicon carbide powder via high-temperature pressureless sintering, they deliver exceptional strength, extreme hardness, superior wear resistance, high-temperature tolerance, and resistance to acids and alkalis.
Key Performance Parameters
Parameter Typical Value Remarks
Physical Properties
Density ≥ 3.15 g/cm³ Pressureless sintered, high densification
Color Black Typical appearance of pressureless sintered SiC
Mechanical Properties
Hardness (Vickers) HV 2000-2500 Approx. HRA ≥ 93, Mohs hardness ~9.5
Elastic Modulus > 460 GPa >50% higher than steel
Flexural Strength 400-650 MPa Up to 600-650 MPa for high-performance grades
Fracture Toughness 3.5-5.1 MPa*m¹/² Solid-state sintering: 3.5~4.5; optimized formulations >5.1
Compressive Strength > 2500 MPa Resists deformation or fracture under high speed/pressure
Thermal Properties
Max. Service Temperature Up to 1600°C Maintains high strength and hardness at elevated temperatures
Coefficient of Thermal Expansion ~3.8 * 10⁻⁶ /℃ ~25% of steel, excellent thermal stability
Quality & Precision
Sphericity Deviation ≤ 0.5 μm (precision grade) Bearing-grade balls can achieve even tighter tolerances
Surface Roughness Ra ≤ 0.02 μm (precision grade) Significantly reduces friction coefficient
Precision Grade G10 / G16 optional Complies with precision ceramic ball standards
Size Accuracy φ 9 mm / φ 10 mm Custom sizes available upon request
Breakage Rate ≤ 0.2% Under normal milling conditions
Core Advantages of Pressureless Sintering Process
Pressureless sintering densifies silicon carbide powder at high temperature (>2000°C) without external pressure, offering superior performance compared to reaction sintering:
Aspect Pressureless Sintered Reaction Sintered Comments
Density (g/cm³) > 3.15 > 3.02 Higher densification, lower porosity
Hardness (Hv) 2000-2500 -- Higher hardness, superior wear resistance
Corrosion Resistance Excellent against strong acids & bases Poor resistance to HF and superacids More comprehensive chemical stability
High-Temperature Performance Maintains strength up to 1000°C Flexural strength drops sharply above 1400°C Significantly better high-temperature stability
Wear Resistance Excellent Good Outstanding overall wear resistance
Fracture Resistance High Good Higher impact resistance due to better densification
Production Process Complex, high capital investment Simpler, lower cost Higher production threshold
Self-Lubricity Good Slightly better due to free Si Minor advantage for reaction-sintered
Applications & Technical Value
Intermediate Crushing & Coarse Grinding of Superhard Materials
  • Pre-grinding of SiC, B₄C, Si₃N₄, Al₂O₃, and other hard-brittle materials
  • Extremely high hardness (second only to diamond) enables efficient comminution
  • Very low impurity introduction preserves powder purity and particle size consistency
Mineral Processing & Ceramic Raw Material Preparation
  • Efficient crushing of architectural and industrial ceramic raw materials
  • Replaces conventional steel or alumina balls, significantly reducing milling energy consumption
  • Suitable for dry or wet grinding of non-metallic minerals
New Energy Material Pre-treatment
  • Coarse grinding and dispersion of precursors for lithium-ion battery cathode and anode materials
  • Uniquely avoids metallic contamination, safeguarding the purity of battery materials
Specialty Ceramics & Powder Metallurgy
  • Self-grinding of high-purity SiC powder - using identical material eliminates cross-contamination
  • Ideal for electronic ceramics, structural ceramics, and other purity-sensitive production processes
Quality Assurance & Manufacturing Standards
  • Raw Material Control: High-purity nano-sized SiC powder with appropriate sintering aids
  • Forming: Cold isostatic pressing ensures uniform green density
  • Sintering: High-temperature pressureless sintering in non-oxidizing atmosphere
  • Precision Finishing: Processed to G10/G16 grade precision with sphericity deviation <0.5 μm
  • Quality Inspection: Full-line production quality monitoring with advanced testing equipment
Performance Comparison with Other Grinding Media
Property Press. Sintered SiC High-Cr Steel Alumina (92-99%) Zirconia (Y-TZP) Silicon Nitride
Density (g/cm³) 3.15 7.8 3.6-3.9 6.0 3.2-3.3
Hardness (HV) 2000-2500 650-800 1200-1500 1200-1400 1400-1700
Elastic Modulus (GPa) >460 200-210 300-380 210 310-320
Fracture Toughness (MPa*m¹/²) 3.5-5.1 20-50 (metal) 3-4 8-12 6-8
Relative Wear Rate 1 (baseline) 20-50 3-5 1.5-2 1.2-1.5
Max. Service Temp. (°C) 1600 500 (oxidation) 1500 500 1200
Acid/Alkali Resistance Excellent (except HF) Poor (rusts easily) Good (poor in strong alkalis) Excellent Excellent
Magnetic No Yes No No No
Contamination Risk Very low (SiC) High (Fe, Cr) Low (Al₂O₃) Low (ZrO₂) Very low (Si₃N₄)
Relative Cost Medium-high Very low Low High Very high
Engineering Selection Guidelines
Preferred Applications
  • Milling materials with Mohs hardness ≥ 8 (SiC, B₄C, Al₂O₃, ZrO₂, diamond)
  • Strict restrictions on metal contamination and magnetic particles
  • Wet milling requiring long-term resistance to acidic or alkaline slurries (pH 2-12)
  • Dry or semi-dry milling with elevated temperatures (200-800°C)
  • Goal of minimizing media consumption and reducing replacement frequency
Consider Alternative Media When
  • Feed size > 8-10 mm in coarse crushing stage, or severe impact
  • Extremely cost-sensitive, small-scale production
  • Need for maximum fracture toughness and impact fatigue resistance in fine grinding
Summary
The 9-10 mm pressureless sintered SiC grinding ball combines high hardness, exceptional wear resistance, excellent thermochemical stability, and good impact toughness. With ultra-low wear rate (only 1/5 that of zirconia balls), minimal impurity introduction, and long service life, it delivers significant technical and economic value in new energy materials, specialty ceramics, superabrasive processing, and advanced mineral processing.
For further information or to discuss your specific requirements, please contact us directly.

Miss. Scarlett.S

Deputy Director of Foreign Trade Department

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