3 kg graphite high pure gold smelting Crucible

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Product Overview

Description



Product Description :


Graphite Crucible          
Graphite crucibles are widely used in the smelting of precious metals and the smelting of non-ferrous metals and their alloys in
metallurgy, foundry, machinery, chemical and other industrial areas because of their superior properties. And has a good technical
and economic effects.
Graphite crucible has more sizes, and not restricted to the production scale, quantity and smelting materials, it can be produced to any size, any quantity, and can ensure the purity of the smelting materials.



Graphite materials has the following characteristics:                               
1. High temperature resistance.
2. Good thermal conductivity.
3. Good corrosion resistance, long service life.
4. Small coefficient of thermal expansion, and it has a certain strain resistance to quench and heat.
5. Stable chemical property and hard to react.
6. Smooth inner wall, molten metal is not easy to leak and adhere to the inner wall of the crucible.


Specification:


We can process and customize according to customers' requirements


Item
Unit
Guarantee value
Guarantee value
Max grain size
mm
0.8
0.8
Bulk density
g/cm3
≥1.70
≥1.73
Specific resistance
μΩ.m
≤8.5
≤8.0
Bending strength
MPa
≥10.0
≥12.0
Compressive strength
MPa
≥24.0
≥31.0
Thermal Condcutivity\t
W/(m.k)
≥120
≥130
C.T.E.(100-600) °C
10-6/°C
≤2.5
≤2.5
Ash content
%
≤0.3
≤0.3


high pure graphite

Item

Unit
baked twice
baked three time
baked four time
impregnated once
impregnated twice
Impregnated three times
grain size
mm
≤325mesh
≤325mesh
≤325mesh
Bulk density
g/cm3
≥1.68
≥1.78
≥1.85
Specific resistance
μΩ.m
≤14
≤14
≤13
Bending strength
MPa
≥25
≥40
≥45
Compressive strength
MPa
≥50
≥60
≥65
Ash content
%
≤0.15
≤0.1
≤0.05


Item
Unit
Isostatic graphite
grain size
μm
5-22
Bulk density
g/cm3
1.75-1.85
Specific resistance
μΩ.m
10-15
Bending strength
MPa
≥40
Compressive strength
MPa
≥70
Shore hardness

≥5
C.T.E.(100-600) °C
10-6/°C
3.2-5.2
Modulus of elasticity
GPa
9.5-12.5




Note the use of the crucible:        
1. Check whether there are cracks in the graphite crucible before use.
2. After the use of dry place, avoid rain intrusion; before use to be slowly baked to 500 degrees C before use. 
3. Should be based on the capacity of the crucible feeding, avoid squeeze too tight, so as to avoid thermal expansion of metal cracking crucible.


How to choose the suitable graphite crucible?
1. Please provide us detailed drawings.
2. You can also give us size (diameter, inner diameter, hight and thickness)
3. Please let us know the density of the graphite material
4. Please tell us the processing technic, whether you need polishing.
5. Please let us know any special design you want.
6. After we make sure what design you need, we can calculate the price for you.
7. Provide sample for testing

















0.0151 s.