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200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
Specifications
Brand Name :
VOBEN
Model Number :
200 Mesh
Certification :
ISO9001
Place of Origin :
China
MOQ :
20MTS
Price :
US$220-500/MT FOB Qingdao
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
50,000-100,000 tons Per Year
Delivery Time :
20days
Packaging Details :
25 kgs in plastic bag, 40 bags/Pallet ,1,000kg/bag,
Material :
Mullite or Kaolin
FE2O3 Max :
1.2-2.3%
AL2O3 Mix :
43-46%
SIO2 :
50.5-52.5%
COLOR :
White or Gray
Description

200 Mesh High-alumina Investment Casting Sands with Low Thermal Expansion Coefficient

1. Description:

a.Our prodcts refractory foundry sands are made from mullite .Mullite is made of kaolin by high temperature sintering.

b.The density of casting sand raw ore 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. .

c.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%. The best raw ore make our foundry sands can keep relatively stable below 1750℃.

d.Our precision refractory foundry sand is popular by all customs 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.All process make casting sands uniform particle size ,even through four layer screens in our factory.

2. Application:

The foundry sands are mainly used in precision 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.

We can provide special foundry sands for your all purposes.

When you make a precison parts shell ,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.

200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

3. 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

More Products Pictures

1. 16-30Mesh Grade Ⅰ

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

200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

2. 16-30Mesh Grade Ⅱ

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

200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

3. 16-30 Mesh Grade Ⅲ

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

200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

Product tags

sand casting cores

,

olivine sand for foundry

,

precast hollow core slab
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200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

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Product Detail
Brand Name :
VOBEN
Model Number :
200 Mesh
Certification :
ISO9001
Place of Origin :
China
MOQ :
20MTS
Price :
US$220-500/MT FOB Qingdao
Contact Supplier
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient
200 Mesh Refractory Foundry Sand With Low Thermal Expansion Coefficient

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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