fused silica investment casting Grade


Negotiable Min Order Quantity Unit

Required Quantity
Place of Origin
China
Payment Terms
D/A,D/P,L/C,T/T
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
fused silica, fused silica powder, fused silica flour, precision investment casting
Category
Refractory , Silica , Other Non-Metallic Mineral & Products

Chem&Size Minerals Limited

Membership
BIZ
Country / Year Established
China China / 2012
Business type
Manufacturer
Verified Certificate

7

Product name fused silica investment casting Grade Certification -
Category Refractory
Silica
Other Non-Metallic Mineral & Products
Ingredients -
Keyword fused silica , fused silica powder , fused silica flour , precision investment casting Unit Size -
Brand name - Unit Weigh -
origin China Stock -
Supply type - HS code 320740

Product Information

fused silica sand,fused silica grains,fused silica powder,fused silica sand can be made cearmic slurry and shell in the process of making investment casting.


Investment casting, also known as Precision casting or lost-wax process, is used to make precision products for the industiry of machine,automotive, military, aerospace, medical, commercial, and recreational.

      Most investment casting foundries use Zircon Flour for making the primary slurry. Zircon continues to be in short supply and the prices are rising. Many clients use the Fused Silica sand,used silica powder,fused silica grains,fused silica flour in  the dipping and coasting process to make primary slurry and rainfall sander to form a hard shell because of the following advantages:

1) Fused silica decrease in material consumption
       Fused Silica's density is 2.21g/cm3,just roughly half of Zircon's density. If Zircon flour is replace 20% in primary slurry batch with Fused Silica, it needs lesser material by weight. For example if  slurry mix had 50 kgs of Zircon and try and replace 10 kgs then it would need to add around 6 kgs of Fused Silica flour to achieve the existing viscosities and flow properties.

2) Fused silica increase permeability and porosity
       Zircon is very dense. Fused Silica is lighter and does not pack as tightly as Zircon which is why it helps in improving the permeability of your shell. It is also more porous.

3) fused slica ceramic shell is Easier knock-out
       Fused Silica knocks out much easier than Zircon or Alumino-Silicates. This is because of the Cristobalite formation while pouring which easily breaks down upon cooling.

4) Faster leaching and shell removal
        the moment to add fused silica in the shell it helps in the leaching process and it is much easier to remove shell materials off cavities and holes.

5) Fused Silica price is cheaper.

The typical specification sheet of Chem&Size minerals Fused Silica sand,fused silica grains and fused silica powder and fused silica flours for your perusal.

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

Alkalies

Na2O+K2O

<100ppm





 

 

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options D/A,D/P,L/C,T/T Shipping time Negotiable

Chem&Size Minerals Limited

Country / Year Established
China China / 2012
Membership
BIZ
Business type
Manufacturer

7

President
Frank Wang
Address
Haikeyinzhou, Haitang Bei Lu 89#,Lianyun District
Product Category
Silica
Year Established
2012
No. of Total Employees
1-50
Company introduction
Chem&Size Minerals Limited were established with aim not only to engrosse in good and stable quality fused silica, but also devoted to reduce their cost. Hundreds of thousands of Tons per year Fused silica were made in China Mainland. 95% of them were produced in Donghai and XInyi city and 100, 000Tons level fused silica were exported world wide through LIANYUNGANG Port to refractory, investment casting, foundry, advance fused silica ceramic, powder coatings, epoxy molding compound and other industry fields. Due to Chinese fused silica speical fusion or melting technology, fused silica must be divided into several grades by manual so that their quality are uneven. To solve this problem, Chem&Size Minerals Limited control chemcial composition, particle size distribution and amorphous phase of fused silica and further to export qualified and stable fused silica.
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Austria Austria

Belgium Belgium

Czecho Republic Czecho Republic

Germany Germany

Italy Italy

Oman Oman

Saudi Arabia Saudi Arabia

Spain Spain

Turkey Turkey

U.A.E. U.A.E.

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