South Africa chromite flour for foundry paint
Yes, of course.
South Africa chromite flour can be professionally used as high temperature coating when smelting various casting parts. The reasons are as follows:
Chromium ore flour has a high refractoriness (>1900°C). After grinding, it is added to the casting paint as a refractory aggregate, which can significantly improve the fire resistance of the paint, so that it is difficulty to be ablated, softened or dropped at high temperature, so as to ensure the integrity of the cast and core .
In addition, chromium flour also has a good anti-alkaline slag effect, can prevent the penetration of molten metal, effectively prevent the surface of the casting sand, so as to improve the quality of the casting .
Physical and chemical properties of ferrochrome ore powder Ferrochrome ore powder has the following characteristics:
Higher hardness : usually on the Mohs hardness tester can be measured 5.5-6.5 hardness value .
Density : usually between 3.0-4.5 g/cm ³ .
High refractoriness : refractoriness of more than 1900°C.
Chemical composition . The main component is chromite (FeCr₂O₄) .
These characteristics make the ferrochrome ore powder perform well at high temperatures and is suitable for use in casting coatings.
South Africa chromite flour 325mesh:
