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High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting
  • High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting
  • High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting
Product Details:
Place of Origin: China
Brand Name: VOBEN
Certification: ISO9001
Model Number: 30-60 Mesh Grade II
Payment & Shipping Terms:
Minimum Order Quantity: 20MTS
Packaging Details: 25 kgs in plastic bag, 40 bags/Pallet ,1000kg/bag,
Delivery Time: 15days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 50,000-100,000 tons Per Year
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Detailed Product Description
Color: White Material: Mullite
Al2O3(mix): 44% SiO2 (mix): 51.5%
Fe2O3(max): 1.5% TiO2 Max: 0.9%
B.D.g/ccm Min: 2.53% Refractory Index: 1750
Usage: Precision Investment Casting Appearance: Granulate
High Light:

High Alumina Mullite Sand

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Refractory Mullite Sand

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Vacuum Suction Casting Mullite Sand

30-60 Mesh High-alumina Grade II Precision Investment Casting Sands with Low Thermal Expansion Coefficient

 

 

1. Description:

 

a. Casting sands are made from mullite.

 

b. The density of mullite is generally greater than 2.5g/m3, the true specific gravity is 2.6g/cm3, the water content is less than 0.03%, and the fire resistance is greater than 1750 ℃. Under the condition of high temperature burning, its weight will be reduced by 0.3% and not more than 0.4%, which shows the stability of mullite's chemical properties. Its pH value is between 7 and 9, and the hardness of the shell is greater than 8 MPa. 

 

c. The casting sand raw material of mullite is made of kaolin by high temperature sintering. The chemical components of mullite are all chemical substances with strong fire resistance, and their properties are relatively stable. It mainly includes: alumina, silica, etc., the content of alumina is between 42% and 46%, and the content of silica is between 51-53%. 

 

d. 200 Mesh High-alumina Precision Investment Casting Sands with Low Thermal Expansion Coefficient  is a series of mullitesand and powder with high aluminum content, low iron content, low coefficient of thermal expansion, high refractoriness and stable thermochemical proprities, which are made of hard clay mineral resources through high-temperature roasting, crushing, screening, Raymond, iron removal and other machining processes.

 

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 0

 

2. Application:

 

The precision investment casting sand  are mainly used in investment casting,especially in reinforcement layer, gypsum filling V method molding and vacuum suction casting, as well as refractories for large, medium and small steel castings, widely used in machinery, aviation, weapons, metallurgy, petroleum and other industries.

 

The grain size of mullite is also different for different purposes. Generally, we use "mesh" to measure the grain size of mullite, including 8 to 16 mesh, 16 to 30 mesh, 30 to 60 mesh, 60 to 80 mesh, 80 to 120 mesh; mullite powder mainly includes 200 mesh and 300 mesh.

To make the back layer slurry, 200 mesh mullite and silica sol are needed, and 30-60 mesh mullite is added to the slurry.


Sealing paste, only need to use 200 mesh mullite powder and silica sol.

 
3The Physical and Chemeical Index

 

The physical and chemical indications
Grade Fe₂O₃ % Max Al2O3 % min SiO₂ % min TiO2 % max B.D.g/ccm min refractoriness
II 1.5 44 51.5 0.9 2.53 1750

 

 
More Products Pictures
 200Mesh Grade II
High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 1

 

 

 

 

4. Our Company 

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 2 

Our Trade Company Office

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 3

 

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 4
 Our Process Line

 

5. The Package

 

 High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 5

 Woven Bag in Pallet

High Alumina Mullite Sand Grade II For Investment Casting / Vacuum Suction Casting 6

 

Container Loading

 

Contact Details
Qingdao Jinjunxuan International Trade Co., Ltd.

Contact Person: Kathy Tang

Tel: +8613583220398

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