| Model: | - |
|---|---|
| Brand: | - |
| Origin: | - |
| Category: | Industrial Supplies / Machine Hardware / Other Machine Hardware |
| Label: | chromite sand , chromite foundry |
| Price: |
US $500
/ ton
|
| Min. Order: | 20 ton |
| Last Online:09 Jun, 2021 |
Brief production of Chromite Foundry sand
Chromite foundry sand , Originally from South Africa (SAMANCOR),is a special kind of sand for casting , chromite sand is a natural spinel mainly composed of chromite ,
Chromite foundry sand used as a highly fireproof sharpener for moulds and cores.
Chrome ore sand,It’s main chemical composition is Cr2O3, This kind of sand heating volume is stable , High thermal conductivity , sand molten metal contact , not only has a good alkali slag resistance , not with iron oxide and other chemical reaction , and itself has the characteristics of solid phase sintering , can well prevent the penetration of molten metal , avoid sand defects .
|
Chemical Properties |
|
|
Item |
Index % |
|
Cr2O3 |
46.0min |
|
SiO2 |
1.0max |
|
FeO |
26.5max |
|
CaO |
0.30max |
|
MgO |
10.0max |
|
Al2O3 |
15.5max |
|
P |
0.003max |
|
S |
0.003max |
|
Cr/Fe |
1.55 / 1 |
|
Physical Properties |
|
|
Bulk Density |
2.5-3 g/cm3 |
|
Color |
Black |
|
PH |
7-9 |
|
The amount of the acid |
2ML(MAX) |
|
Percent Soil |
0.1% max |
|
Percent Moisture |
0.1% max |
|
The Sintered Point |
1600 C |
|
Filling Density |
2.6 g/cm3 |
|
Sintering Point |
1800 C min |
|
Melting Temperature |
2180 C |
|
Percentage of Free Acid Present in the Sand |
0 |
SIZE OF Chromite sand
Available Size: AFS35-40, AFS40-45, AFS45-50, AFS50-55, AFS55-60, AFS60-65
Application of Chromite foundry sand
Chromite foundry sand is used as a highly fireproof sharpener for moulds and cores.
Chromite foundry sand is suitable for all kinds of molding (core-making ) sand, stainless steel , Alloy steel and carbon steel gradually modeling core sand and paint .
