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Grinding glass bead
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Added:2016-03-22
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Telephone:+86-316-2158898
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Product Details

Grinding glass bead is made of special glass by smashing and fritting.It has the characteristics of smooth surface,average size,high hardness,anti-friction and stable etc.Widely used in dyestuff,paint,ink,chemical industries etc as dispersing agent,grinding medium and filling materials.

physical properity

Item

Index

appearance

colorless transparent sphere, smooth and round, no obvious bubbles or impurities

Roundness

≥90%

density

2.5g/cm3

Refractive index

Nd ≥1.50

Chemical composition

Soda-lime glass SiO2>68%

Mohs hardness

6-7mohs

Mechanical properties

(Compression strength)

3300kg/cm2

Micro hadness (Indentation hardness)

8000kg/cm2

Acid resistance

Weightlessness 0.005mg/cm3

(boiled 4 hours in 20% HCL solution)

Alkali resistance

Weightlessness 0.3mg/cm3

(boiled 4 hours in 1% NaOH solution)

Specification

Special size can be made as request.Free samples are available.

NO.

Diameter(mm)

1

0.6-1

2

1-1.5

3

1.5-2

4

2-3

5

3-4

6

4-5