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Do domu / produkty / ceramika z węglanu krzemu / 10-11mm Pressureless Sintered Silicon Carbide Grinding Balls
Jakość 10-11mm Pressureless Sintered Silicon Carbide Grinding Balls Fabryka
Jakość 10-11mm Pressureless Sintered Silicon Carbide Grinding Balls Fabryka
Jakość 10-11mm Pressureless Sintered Silicon Carbide Grinding Balls Fabryka
Jakość 10-11mm Pressureless Sintered Silicon Carbide Grinding Balls Fabryka

10-11mm Pressureless Sintered Silicon Carbide Grinding Balls

Basic Properties
Place of Origin: Chiny
Brand Name: KEGU
Model Number: Możliwość dostosowania
Trading Properties
Minimum Order Quantity: Zbywalny
Price: negocjowalne
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Tagi

CERAMIKA Z WĘGLIKA KRZEMU

Bezciśnieniowy sinter SIC

Ceramika Sic
Podsumowanie produktu
10-11mm Pressureless Sintered Silicon Carbide Grinding Balls Product Overview Pressureless sintered silicon carbide (SiC) grinding balls are precision ceramic grinding media manufactured by sintering nano- or submicron SiC powders in a non-oxidising atmosphere at high temperatures. The 10–11 mm size ...

Szczegóły produktu

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Pressureless Sintered Silicon Carbide Grinding Balls

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11mm Silicon Carbide Grinding Balls
Opis produktu
10-11mm Pressureless Sintered Silicon Carbide Grinding Balls
Product Overview

Pressureless sintered silicon carbide (SiC) grinding balls are precision ceramic grinding media manufactured by sintering nano- or submicron SiC powders in a non-oxidising atmosphere at high temperatures. The 10–11 mm size falls into the optimal range for drum (rolling) ball mills, offering an excellent combination of high hardness and moderate density.

Key Size Applications:

  • 0.5–2 mm: Ultra-fine grinding of extremely hard materials
  • 2–8 mm: Preferred media for stirred mills
  • 8–15 mm: Specifically designed for drum ball mills
Manufacturing Process

Pressureless sintering involves submicron β-SiC powder with sintering aids (0.3–3.0 wt% boron and 0.1–1.0 wt% carbon), sintered at 2020–2080°C in inert atmosphere. For 10–11 mm balls, cold isostatic pressing (CIP) is used to create spherical blanks, which are then precision-machined and sintered to ensure high sphericity and uniform density.

Technical Specifications
Parameter Value / Range Unit
True Density >3.15 g/cm³
Hardness (Vickers) 2000–2500 HV
Bending Strength 360–470 MPa
Compressive Strength >2200 MPa
Fracture Toughness 3.0–5.12 MPa·m¹⁄²
Elastic Modulus 350–380 GPa
Max. Operating Temperature 1600 °C
Thermal Conductivity 95–120 W/m·K
Performance Comparison
Property Pressureless Sintered SiC ZrO₂ Al₂O₃ Steel
Density (g/cm³) >3.15 ≈6.0 ≈3.95 ≈7.8
Vickers Hardness (HV) 2000–2500 1100–1300 ≈1800 ≈700
Max. Operating Temp. (°C) 1600 400 1000 ~300
Fracture Toughness (MPa·m¹⁄²) 3.0–5.12 8.0–10.0 3.0–4.0 —
Industrial Applications
  • Superhard material grinding: SiC, B₄C, TiC, Si₃N₄, diamond
  • Mining & metallurgy: Hard ores like quartz and corundum
  • Electronic & structural ceramics: Non-magnetic and electrically insulating
  • Chemical & corrosive environments: Stable in strong acids and alkalis
  • New energy & semiconductor materials: High-purity battery and substrate materials
Selection Guidelines
Consideration Recommendation
Equipment Match Drum (rolling) ball mills
Material to be Ground Hard powders (Mohs ≥7)
Purity Requirements Products requiring ≥99.5% purity
Impact Severity Avoid extremely high impact conditions
Operating Temperature Room temperature up to 1300°C

Important Note: Although SiC is extremely hard, its fracture toughness is relatively low (3–5 MPa·m¹⁄²). Under extremely high-speed collisions or hard impacts, there is a risk of breakage. Optimize rotational speed and ball charge to avoid excessive inter-ball impact.

Quality Standards

Manufactured according to Chinese national standards (GB/T 2480-2022, GB/T 23538-2023) and international standards including ASTM C1327 for Vickers hardness testing.

Core Quality Parameters:

  • Wear performance: specific energy wear ≤0.5 g/(kW·h)
  • Mechanical properties: Rockwell hardness HRA ≥85
  • Size & shape: diameter deviation ±5%; roundness ≥0.9
  • Stability: hardness retention rate ≥95% after immersion

Miss. Scarlett.S

Deputy Director of Foreign Trade Department

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