Alumina Ceramic Ball
Alumina ceramic ball is high-quality grinding media, it is made of high-quality raw materials and calcined in a high-temperature tunnel kiln through dry forming technology.The product has the characteristics of high density, high hardness, low abrasion, good seismic stability, corrosion resistance, etc., and is the ideal grinding medium for glazes, blanks and various mineral powders.
Products are widely used in cement, coatings, refractory materials, inorganic mineral powder and other industries.
PRODUCT DESCRIPTION

Product Description

Alumina ceramic ball is high-quality grinding media, it is made of high-quality raw materials and calcined in a high-temperature tunnel kiln through dry forming technology.The product has the characteristics of high density, high hardness, low abrasion, good seismic stability, corrosion resistance, etc., and is the ideal grinding medium for glazes, blanks and various mineral powders.

Products are widely used in cement, coatings, refractory materials, inorganic mineral powder and other industries.

  

General specifications:

Pressed Ball:φ30-φ120

Rolled Ball:φ0.5,φ1.0,φ2,φ3,φ6,φ8,φ10,φ13,φ20,φ25,Φ30,φ40

Cylindrical Ball:φ20*20,φ25*25,φ30*30,φ40*40,φ50*50,φ60*60


Test Report of 75% Alumina Ceramic Ball

Product Name75% Alumina ceramic ball
Test StandardJC/T 848.1-2010
Lab Environment25℃  60%RH
Main indexSerial numberItemsMeasured value
1Al2O3(%)74.32≥70
2Fe2O3(%)1.30≤2
3Wearing lost(%)0.113≤0.30
4Water absorption(%)<0.01≤0..02
5Bulk density(g/m3)3.26(g/cm³)≥2.95
6Rockwell Hardness8≥8
7Degree of Sphericility1±0.031±0.04


Performance of 92% Alumina Ceramic Ball

ItemPerformance Index
Alumina content≥92%
AL2O3 (%)≥92
Fe2O3 (%)≤0.25
Rockwell Hardness80-90HRA
Compressive Strength≥850MPa
Bulk density(g/m3)≥3.60
Water absorption rate(%)≤0.02
KIC Fracture Toughness≥4.8MPa.M1/2
Bending Strength≥290MPa
Thermal Conductivity20W/m.k
Coefficient of Thermal Expansion7.2×10-6m/×m.k
Wearing lost(%)≤0.15


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