Chromite Sand
Chromite Sand
(OP)
Is anyone familiar with whether there are adverse effects of chromite sand getting back into molding sand in steel casting applications. This can be with either green sand or Airset molding?
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RE: Chromite Sand
We used to cast in green sand and airset, some of our cores were Olivine (MgSiO).
It only made up about 3-5% of our sand by weight so we didn't see any effect.
Are there any chemical bonding issues with Chromite in either of your sand systems?
That would be my only worry.
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P.E. Metallurgy, Plymouth Tube
RE: Chromite Sand
Chromite sands are preferred for following reasons:
. High thermal conductivity
• Low thermal expansion
• Wetability resistance to molten steel
• Basic to neutral pH
• High melting point
• Broad sieve distribution
Green sand molding using chromite sands, I am not familiar, but they are used in Airset resin sand moulds. I recently saw a 3D printed sand mould using Chromite sand and Furan resin as binder.
"Even,if you are a minority of one, truth is the truth."
Mahatma Gandhi.
RE: Chromite Sand
RE: Chromite Sand
"Even,if you are a minority of one, truth is the truth."
Mahatma Gandhi.
RE: Chromite Sand
I have never seen chromite in green sand either, but in airset and heat set it is not uncommon.
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P.E. Metallurgy, Plymouth Tube