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Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Specifications
Brand Name :
VOBEN
Model Number :
30-60 Mesh
Certification :
ISO9001
Place of Origin :
China
MOQ :
15ton
Price :
US$300-500/Ton FOB Qingdao
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
50,000-100,000 Mts Per Year
Delivery Time :
30days
Packaging Details :
25 kgs in plastic bag, 40 bags/Pallet ,1000kg/bag,
Color :
White or Gray
Material :
Mullite
AL2O3 mix :
43-46%
SIO2 mix :
50.5-52.5%
Fe2O3 max :
1.2-2.3%
Tio2 max :
0.7-1.0%
B.D.g/ccm m :
2.5-2.55%
Refractory Index :
1750
Usage :
Investment Casting
Appearance :
Granular or powder
Particle Size :
0.3mm-0.6mm>65-75%
Description

30-60 Mesh High-alumina Casting Sands With Low Thermal Expansion Coefficient Precision Investment

1. Description:

a. Our products are made of mullite or kaolin raw ore.


b. The density of mullite, the raw material of casting sand, is usually 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 ° C.


c. The weight of mullite will be reduced by 0.3% to not more than 0.4% under the condition of high temperature combustion, which indicates that the chemical properties of mullite are stable.Its pH is between 7 and 9, and the hardness of the shell is greater than 8 MPa.The alumina content in the foundry sand is between 42% and 46%, and the silica content is between 51% and 53%.All above make our high-alumina precision investment casting sand keep low thermal expansiion coefficient and make the shell keep good shape.


d. The grain size and application of mullite for casting sand are different. Mullite is made from kaolin by high temperature sintering. The chemical composition of mullite is a chemical substance with strong fire resistance, and its performance is relatively stable.


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

2. Technical Indicators

The physical and chemical indications
Grade Fe₂O₃ % Max Al2O3 % min SiO₂ % min TiO2 % max B.D.g/ccm min refractoriness
Ⅰ-Ⅲ 1.2-2.3 43-46 50.5-52.5 0.7-1.0 2.5-2.55 1750

3. Product Application:

Investment casting sand is mainly used for investment casting, especially reinforcement, gypsum-filled V-shaped molding and vacuum casting, and refractory materials for large, medium and small steel castings, widely used in machinery, aviation, weapons, metallurgy, petroleum And other industries.
For different purposes, the grain size of mullite is also different, and the types of precision investment casting sand are also different. Generally, we use "mesh number" to measure the particle 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.
In the field of investment casting, you can refer to the following to meke the shell:
To prepare zirconium powder, 325 mesh mullite powder and silica sol are required, and then 120 mesh zircon sand is added.
In order to prepare the back layer slurry, 200 mesh mullite and silica sol are required, and 30-60 mesh mullite is added to the slurry.
The reinforcing layer is made of the same raw material as the back layer slurry, but requires 16-30 mesh mullite.
For sealing paste, you only need to use 200 mesh mullite powder and silica sol.
Please choose the right product for your purpose.
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

More Products Pictures

1. 30-60Mesh Grade Ⅰ

Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

The physical and chemical indications
Grade Fe₂O₃ % Max Al2O3 % min SiO₂ % min TiO2 % max B.D.g/ccm min refractoriness
Ⅰ 1.2 46 50.5 0.7 2.55 1750

2. 30-60Mesh Grade Ⅱ

Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

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

3. 30-60 Mesh Grade Ⅲ

Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

The physical and chemical indications
Grade Fe₂O₃ % Max Al2O3 % min SiO₂ % min TiO2 % max B.D.g/ccm min refractoriness
Ⅲ 2.3 43 52.5 1 2.5 1750

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Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

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Product Detail
Brand Name :
VOBEN
Model Number :
30-60 Mesh
Certification :
ISO9001
Place of Origin :
China
MOQ :
15ton
Price :
US$300-500/Ton FOB Qingdao
Contact Supplier
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance
Refractory High Alumina Casting Sand 30 - 60 Mesh With Granular / Powder Appearance

Qingdao Jinjunxuan International Trade Co., Ltd.

Active Member
6 Years
beijing, qingdao
Since 2018
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Casting Sand, Refractory Sand, Mullite Sand
Total Annual :
1,000,000-5,000,000
Employee Number :
100~110
Certification Level :
Active Member
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