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Sable de bauxite pour fonderies

Brève description:

Bauxite sand is a special foundry molding sand for iron and steel casting. It also goes by trade names such as: Green Beads, MinSand, Green Sand, Ceramic Beads, and Spherical Beads. It’s spherical particle shape guarantees a very good flowability. Due to the special surface structure the binder/hardener demand compared to other molding sands can be reduced. Bauxite sand has a very good refractoriness of up to 1800 degree Celsius and a low thermal expansion. It is well regarded as a revolutionary new foundry sand.

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Détail du produit

Mots clés du produit

Bauxite Sand Property

Composant chimique principal	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Forme des grains	Sphérique
Coefficient angulaire	≤1.1
Particle Size	45μm -2000μm
Résistance	≥1800℃
Densité apparente	1,45-1,6 g/cm3
Expansion thermique (RT-1200 ℃)	4,5-6,5x10-6/k
Couleur	Sable
PH	6.6-7.3
Composition minéralogique	Doux + Corindon
Coût de l'acide	＜1 ml/50g
Lettre d'intention	＜0,1%

Avantage

● Offers longer work life and reduction of sand usage

● Spherical shape compared with angular shaped grains allows for easier separation from cast parts and improved collapsibility resulting in lower scrap and casting efficiency

● Offers lots of price savings compared with Zircon, Chromite, Black ceramic sand, Naigai cerabeads sand and silica sand.

● Lower thermal expansion and thermal conductivity. Casting dimensions are more accurate and lower conductivity provides better mold performance

● Nécessite 30 à 50 % de résine en moins

● Peut être utilisé comme un seul sable

● Durabilité améliorée par rapport aux autres sables de fonderie

Application

Bauxite sand is an artificial foundry sand that is regarded as the right substitute for Cerabeads ceramic sand, fused ceramic sand, chromite sand, zircon sand, fused silica sand, and silica sand. It can be widely used in all types of foundry sand molding, such as resin-coated sand, no-bake sand, cold core box, green sand, precision casting, lost foam casting and 3D printing etc., excellent properties help you reduce more production cost.

Parts of Particle Size Distribution

La distribution granulométrique peut être personnalisée selon vos besoins.

Engrener		20	30	40	50	70	100	140	200	270	Poêle	AFS
μm		850	600	425	300	212	150	106	75	53	Poêle
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

bauxite frac sand

bauxite sand

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