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Golden sand for sand molding castings

Short Description:

Foundry Ceramic Sand, technically named as “Sintered Ceramic Sand for Foundry”, also named as ceramsite, ceramcast, same with cerabeads, some countries is also named Golden Sand, is good artificial spherical grain shape which is made from calcined bauxite . Its main content is aluminum oxide and Silicon oxide. Ceramic sand, has much better properties than that of silica sand to gain a better performance in foundry. 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

Product Tags

Foundry Ceramic Sand, technically named as “Sintered Ceramic Sand for Foundry”, also named as ceramsite, cerabeads, ceramcast, some countries is also named Golden Sand, is good artificial spherical grain shape which is made from calcined bauxite . Its main content is aluminum oxide and Silicon oxide. Ceramic sand, has much better properties than that of silica sand to gain a better performance in foundry. It has high refractoriness, little thermal expansion, good angular coefficient, excellent flowability, High resistance to wear, crush and thermal shock, high reclamation rate.

Ceramic Sand Property

Main Chemical Component	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Grain Shape	Spherical
Angular Coefficient	≤1.1
Partical Size	45μm -2000μm
Refractoriness	≥1800℃
Bulk Density	1.5-1.6 g/cm3
Thermal Expansion（RT-1200℃）	4.5-6.5x10-6/k
Color	Sand
PH	6.6-7.3
Mineralogical Composition	Mullite + Corundum
Acid Cost	＜1 ml/50g
L.O.I.	＜0.1%

Advantage

Kaist ceramic foundry sand is about half as light as zircon and chromite, is about third as light as fused ceramic sand. Compared to these natural sand and other foundry media (the material is able to turn out about twice the number of molds per unit weight). Kaist ceramic foundry sand can deliver mold and core packages with a range of benefits that include higher-strength sand casting packages, with high heat resistance, low thermal expansion, improved final part resolution and a smoother surface finish. It can also be handled very easily, saving labor and transfer power costs. However, the manufacturer recommends paying attention to the amount of binder addition.

Application

As a neutral material, KAIST ceramic sand is applicable to acid and alkali resins.

It can be widely used for cast iron, cast steel and nonferrous metals casting, such as lost foam casting, coated sand, resin sand, cold core box, precision casting, and 3D printing.

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Application

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Packing and Delivery

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Packing and Delivery

Parts of Particle size Distribution

The particle size distribution can be customized according your requirement.

Mesh		20	30	40	50	70	100	140	200	270	Pan	AFS
μm		850	600	425	300	212	150	106	75	53	Pan
Code	20/40	15-40	30-55	15-35	≤5							20±5
	30/50	≤1	25-35	35-50	15-25	≤10	≤1					30±5
	40/70		≤5	20-30	40-50	15-25	≤8	≤1				43±3
	70/40		≤5	15-25	40-50	20-30	≤10	≤2				46±3
	50/100			≤5	25-35	35-50	15-25	≤6	≤1			50±3
	100/50			≤5	15-25	35-50	25-35	≤10	≤1			55±3
	70/140				≤5	25-35	35-50	8-15	≤5	≤1		65±4
	140/70				≤5	15-35	35-50	20-25	≤8	≤2		70±5
	100/200					≤10	20-35	35-50	15-20	≤10	≤2	110±5