Ceramic casting sand for sand 3d printing Featured Image

Nisip de bauxita pentru turnatorii

Scurta descriere:

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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Bauxite Sand Property

Componenta chimică principală	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Forma boabelor	Sferic
Coeficientul unghiular	≤1.1
Particle Size	45μm -2000μm
Refractaritatea	≥1800℃
Densitate în vrac	1,45-1,6 g/cm3
Expansiune termică（RT-1200℃）	4,5-6,5x10-6/k
Culoare	Nisip
PH	6.6-7.3
Compoziție minerală	Moale + Corindon
Costul acidului	＜1 ml/50g
LOI	＜0,1%

Avantaj

● 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

● Necesită cu 30-50% mai puțină rășină

● Poate fi folosit ca un singur nisip

● Durabilitate îmbunătățită în comparație cu alte nisipuri de turnătorie

Aplicație

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

Distribuția dimensiunii particulelor poate fi personalizată în funcție de cerințele dvs.

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