Ceramic Foundry Sand

Short Description:

Al2O3-based ceramic foundry sand is synthetic sand with a greater refractoriness of 1800 °C. Ceramic foundry sand is used extensively in the foundry industry as molding and core sand because of its nearly completely spherical shape, which offers good flow properties and gas permeation. Without sacrificing core strength, it is possible to save up to 50% on the binder in core production when compared to other sands. At the same time, castings made with Ceramic sand for foundries have exceptional surface finishes.

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Product Detail

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Features

• Uniform component composition
• Stable grain size distribution and air permeability
• High refractoriness (1825°C)
• High resistance to wear, crush and thermal shock
• Little thermal expansion
• Excellent fluidity and filling efficiency owing to being spherical
• Highest reclamation rate in the sand loop system

Application Sand Foundry Processes

Resin coated sand process
Cold box and warm box sand process
3D sand printing process
No-bake resin sand process (Include Furan resin and Alkali phenolic resin)
Investment process/ Lost wax foundry process/ Precision casting
Lost weight process/ Lost foam process
Water glass process

Ceramic Sand Property

Main Chemical Component	Al₂O₃ 70-75%, Fe₂O₃＜4%,
Grain Shape	Spherical
Angular Coefficient	≤1.1
Partical Size	45μm -2000μm
Refractoriness	≥1800℃
Bulk Density	1.8-2.1 g/cm3
PH	6.5-7.5
Application	Steel, Stainless steel, Iron

Grain Size Distribution

Mesh	20	30	40	50	70	100	140	200	270	Pan	AFS Range
μm	850	600	425	300	212	150	106	75	53	Pan	AFS Range
#400		≤5	15-35	35-65	10-25	≤8	≤2				40±5
#500		≤5	0-15	25-40	25-45	10-20	≤10	≤5			50±5
#550			≤10	20-40	25-45	15-35	≤10	≤5			55±5
#650			≤10	10-30	30-50	15-35	0-20	≤5	≤2		65±5
#750				≤10	5-30	25-50	20-40	≤10	≤5	≤2	75±5
#850				≤5	10-30	25-50	10-25	≤20	≤5	≤2	85±5
#950				≤2	10-25	10-25	35-60	10-25	≤10	≤2	95±5