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  • Ceramic casting sand for sand 3d printing
  • Ceramic casting sand for sand 3d printing

Arena de bauxita para fundiciones

Breve descripción:

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

 
Componente químico principal Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Forma del grano Esférico
Coeficiente angular ≤1.1
Particle Size 45μm -2000μm
Obstinación ≥1800℃
Densidad a Granel 1,45-1,6 g/cm3
Expansión térmica (RT-1200 ℃) 4,5-6,5x10-6/k
Color Arena
PH 6.6-7.3
Composición mineralógica Suave + Corindón
Costo ácido ＜1 ml/50g
carta de intención <0,1%

Ventaja

 

● 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

● Requiere entre un 30% y un 50% menos de resina.

● Se puede utilizar como arena única.

● Durabilidad mejorada en comparación con otras arenas de fundición.

Solicitud

 

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.

Bauxite-sand-for-foundries-(3)

Parts of Particle Size Distribution

 

La distribución del tamaño de partículas se puede personalizar según sus requisitos..

Malla

 20 30 40 50 70 100 140 200 270 Cacerola AFS

μm

 850 600 425 300 212 150 106 75 53 Cacerola  
Código 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
 

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