Fused ceramic sand has the characteristics of high refractoriness (> 1800 ℃), small angle coefficient (< 1.06, nearly spherical), low acid consumption (neutral material), small amount of binder (reduce the amount of binder by 30%-50%), high strength, non-breaking, no dust, non-toxic, etc., and is suitable for resin self-hardening sand (furan resin, alkaline phenolic resin, Bonnie resin, etc.), cold box, coated sand and shell mold casting, sodium silicate sand (organic resin, CO2 hardening, modified sodium silicate), lost foam casting and V-process casting (filling sand), coating (Fused Ceramic sand powder), 3D printing and other casting processes are widely used in automobile engines and auto parts, large steel castings (manganese steel, carbon steel, alloy steel, high chromium cast iron) castings. The application of iron castings and non-ferrous metals (copper alloy, aluminum alloy) is praised by experts as a new green casting material in the 21st century.
Main chemical constituents of Fused Ceramic Sand
AL2O3: 70%-80%
Fe2O3: ≤ 3%
TiO2: 2% -5%
SiO2: 10% -25%
Properties and characteristics of Fused Ceramic sand
1. Dense sphere
The particle size of Fused Ceramic sand is spherical, with glossy surface and small specific surface area. The fluidity and filling property are excellent, which can greatly reduce the use of binder and excellent collapsibility compared with other molding sands while obtaining high casting strength and high permeability.
2. Low thermal expansion
The thermal expansion rate of Fused Ceramic sand is lower than that of other casting sands, so the casting produced has high dimensional accuracy, fewer defects such as cracks, and high casting yield.
3. Good crushing resistance
Fused Ceramic sand has compact structure, high strength, and is rarely broken in repeated recycling, which greatly improves the recycling rate of molding sand, reduces the amount of waste sand, and is conducive to environmental protection.
4. High fire resistance
The main composition of Fused Ceramic sand is neutral pH value. It is an Al Si refractory material with good fire resistance and can meet the requirements of various metal and alloy casting.
5. Particle size distribution:
We can produce Fused Ceramic sand with various particle size distribution according to customer requirement, and we can also produce all kinds of Fused Ceramic sand according to AFS standards and casting standards.
Summary of application scope of Fused Ceramic Sand
·It can be used to produce coated sand, molding and core making.
·It can be used for shell casting instead of precision casting process to produce precision steel castings.
·It can be used in cold box resin sand process to produce cylinder block, cylinder head, exhaust pipe and other automotive castings.
·The whole line can be used for alkaline phenolic resin sand process to produce steel castings.
·The whole line can be used in furan resin sand process to produce steel castings.
· The whole line can be used in the modified sodium silicate sand process to produce steel castings.
·The whole line can be used for Bonnie resin sand process to produce steel castings.
·It can replace chromite sand for sodium silicate sand process to produce large steel castings.
·It can be used in lost foam casting process as filling sand.
·Can be used as filling sand for V-process casting.
·It can be used for production of drainage sand filling.
·Available for 3D printing process.
·It can be used to produce casting coating and lost foam coating.
·It can be used for steel, aluminum and other products as polishing sand.