Sintered Ceramic Sand for Foundry

Short Description:

Ceramic foundry sand is good artificial spherical grain shape which is made from calcined bauxite for sand foundry.

Its main content is aluminum oxide and Silicon oxide. Sintered ceramic sand for foundry is one of the ceramic foundry sands which process is pelleting by sintered process in the Rotary kiln. It is very popular with large output and low cost. It has high refractoriness, little thermal expansion, good angular coefficient, excellent flowability, High resistance to wear, crush and thermal shock, high reclamation rate.

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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

RCS (Resin coated sand)
Cold box sand process
3D printing sand process (Include Furan resin and PDB Phenolic resin)
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%,	Al₂O₃ 58-62%, Fe₂O₃＜2%,	Al₂O₃ ≥50%, Fe₂O₃＜3.5%,	Al₂O₃ ≥45%, Fe₂O₃＜4%,
Produce process	Fused	Sintered	Sintered	Sintered
Grain Shape	Spherical	Spherical	Spherical	Spherical
Angular Coefficient	≤1.1	≤1.1	≤1.1	≤1.1
Partical Size	45μm -2000μm	45μm -2000μm	45μm -2000μm	45μm -2000μm
Refractoriness	≥1800℃	≥1825℃	≥1790℃	≥1700℃
Bulk Density	1.8-2.1 g/cm3	1.6-1.7 g/cm3	1.6-1.7 g/cm3	1.6-1.7 g/cm3
PH	6.5-7.5	7.2	7.2	7.2
Application	Steel, Stainless steel, Iron	Steel, Stainless steel, Iron	Carbon steel, Iron	Iron, Aluminum, Copper

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