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Zibo Biz-Harmony International Co., Ltd.

Alumina Ball, Ceramic Ball, Grinding Ball manufacturer / supplier in China, offering High Quality Ceramic Alumina Ball, Manufacturer Directly Supply Cutting Wheel for Glass, 5" Aluminum Threaded Flap Disc T29 Conical for Polishing and Grinding and so on.

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Supplier Homepage Product Industrial Alumina Ceramic High Quality Ceramic Alumina Ball

High Quality Ceramic Alumina Ball

FOB Price: US $600-900 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $600-900/ Ton
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Transport Package: According to Customer′s Requirements
Payment Terms: L/C, T/T, Paypal, Western Union
Basic Info
  • Model NO.: alumina ball
  • Content: >90%
  • Processing Type: Rolling Type
  • Color: White
  • Diameter: According to Customers′ Requirement
  • Specification: SGS
  • Material: Alumina
  • Usage: Grind
  • Size: Small
  • Customized: Customized
  • Trademark: Natural
  • Origin: Shandong
Product Description

High Quality Ceramic Alumina Ball
Performance of 92 Grinding Ball Lining Brick:

siO2Fe2O3Bulk densityCrush strengthWater absorptionRockwell hardnessSelf abrasionEquivalent abrasion
≥ 92%≤ 6%≤ 0.05%3.55 g/m3≥ 2000mpa≤ 0.02%≥ 85≤ 0.2 g/≤ 0.1‰

Impact Resistance and Abrasion Test Method of Wear-resisting Alumina Ball:

1. Method Principle:
    The method assesses the impact property of ball by impacting and grinding alumina ball in polyurethane grinding tank according to specified conditions, and expresses wear resistance of alumina ball by unit time abrasion.

2. Grinding Tank:
    The grinding tank is polyurethane tank, and the size is 200*220mm.

3. Wear-resisting Impact Testing Machine:
    Load 4kg alumina ball samples into grinding tank, and continuously operate at the speed of 80 rpm.

4. Sample Preparation:
    Take 4kg alumina ball with qualified appearance quality and outline dimension, put it into grinding tank, add 4kg water, grind for 24h2 on the wear-resisting impact testing machine at the speed of 80 rpm, and wash and dry the sample for standby.

5. Test Steps:
    Weigh (m1) the sample treated according to the step 4 by a 1g libra.
    Put the above sample into grinding tank, add water with the same weight, seal the cover, put it into the wear-resisting testing machine, and make the grinding tank grind for 24h2 at the speed of 80 rpm.
    Take the sample from the grinding tank out, clean, dry and weigh (m2) the sample.
    Measure average diameter (D) of 10 balls by rule.

6. Result Presentation:
    If the ball has no crack or breakage after impact and abrasion test, it shows that it has qualified impact resistance.
    EWT=KD (m1-m2)/ m1
    EWT: Equivalent abrasion ‰
    K: Correction factor 4.17*10-4 mm-1
    D: Average diameter of ball: mm
    m1: Weight of sample before grinding g
    m2: Weight of sample after grinding g
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Mr. Jin Hai
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