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

Бокситни песак за ливнице

Кратак опис:

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

 
Главна хемијска компонента Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Граин Схапе Спхерицал
Угаони коефицијент ≤1.1
Particle Size 45μm -2000μm
Ватросталност ≥1800℃
Спец.густина 1,45-1,6 г/цм3
Термичка експанзија (РТ-1200 ℃) 4,5-6,5к10-6/к
Боја Песак
ПХ 6.6-7.3
Минералошки састав Меко + корунд
Ацид Цост ＜1 ml/50g
ЛОИ <0,1%

Предност

 

● 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

● Захтева 30-50% мање смоле

● Може се користити као појединачни песак

● Побољшана издржљивост у поређењу са другим ливничким песком

Апликација

 

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

 

Расподела величине честица може се прилагодити према вашим захтевима.

Месх

 20 30 40 50 70 100 140 200 270 Пан АФС

μm

 850 600 425 300 212 150 106 75 53 Пан  
Код 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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