Fused Silica sand and fused silica powder manufacturer Fused Silica sand and fused silica powder manufacturer

Products >> Fused silica for Investment Casting >> 

  • Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item
  • Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item
  • Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item
  • Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item
Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item Fused Silica Flour and Sands offer a high quality ceramic shell  and final cast item

Fused Silica Flour and Sands offer a high quality ceramic shell and final cast item

 
Fused silica is an amorphous siliceous glass produced by high temperature fusion of high quality crystalline silica(quartz). This fusion produces a substance characterised by very low thermal expansion and a high resistance to temperature and thermal shock.

Fused silica is employed in a variety of industrial applications including foundry (investment casting slurry and stucco, and mould release agent), refractory and ceramic (crucibles, saggars, rollers, pouring cups,ceramic cores, gas fire radiants and items for steel, non-ferrous metal and glass industries), and filler (electronic and adhesives).

Chemsize realised early on that the secret of manufacturing investment powder lay in the quality of the raw materials available.
The company has carried out an extensive global sourcing project and has located what it considers to be some of the highest quality refractories so far made available to investment foundries. These include Fused Silica produced from quartz of exceptional purity with an SiO2 content of 99.9%. The source also has particularly low iron, potassium and sodium oxides and such a low trace element content to fall well within Aerospace specifications.

Fused Silica-Investment Casting Grade
1. Physical Properties
1.1 Composition SiO2
1.2 Structure Amorphous
1.3 Colour Transparent or white
1.4 Melting Temperature approx.1750℃
1.5 Specific Gravity 2.21g/cm3
1.6 Hardness 7 Mohs
1.7 Thermal Expansion 0.5*10-6
2.   Chemical Properties
    Investment Casting Grade
2.1 SiO2 >99.90%
2.2 Al2O3 <200ppm
The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball.
2.3 Fe2O3 <50ppm
2.4 TiO2 <20ppm
2.5 MgO <40ppm
2.6 CaO <40ppm
2.7 AlkaliesNa2O+K2O <100ppm
 3.   Particle Size   Distribution  
     
  10/20mesh 20/50mesh 30/50mesh 50/100mesh -100mesh -200mesh -325mesh
Mesh Microns              
8 2360 <2            
12 1700 6-25            
16 1180 33-50            
20 850 25-45 <1 <1        
30 600 13 25-40 15-30        
40 425   32-45 38-50        
50 300   15-30 20-35 <13      
70 212       30-60      
80 180   0-11 <10     <1  
100 150       28-51 <15 <1  
140 106       4-16 17-40 <10  
200 75       <2 19-34 <10 <3
325 45         14-30 15-30 4-11
Pan   <3 <2 <2 <1 4-20 70-80 86-97  
 
*Pan designates the percentage of fused silica passing the last reported screen for each size.

Contact Us

Name: Frank Wang

Tel: +86 518 8232 6257

Fax: +86 518 8232 6257

Mobile: 008613851265016

E-mail: minerals@chemsize.com

Skype: renai11

QQ: 1376936868

WeChat: topsurprise

Whatsapp: 008613851265016

Add: 1-715, Shanghai Square, Huiquan Road, Economic and Technological Development Zone, Lianyungang City, Jiangsu, China 222000

Link

WechatClose
Wechat