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High Aluminum Lightgrey Cenospheres for Foundry

Cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants.
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  • 30/100Mesh

  • CENOLITE

  • 2621900090

Introduction

SEPPE Cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants. The color of cenospheres varies from gray to almost white and their density is about 0.4-0.8 g/cm3, which gives them a great buoyancy. Flows like a liquid, with the appearance of a powder. Provides lightweight bulk to a varied and expansive range of compounds. Cenospheres are hard and rigid, light, waterproof, innoxious, and insulative. This makes them highly useful in a variety of products, notably fillers. 


Excellent performance and use of Cenosphere


1. High refractoriness:

Cenosphere (Main SiO2 and Al2O3)have extremely high refractoriness, generally reaching 1600-1700 degrees Celsius, making it an excellent high-performance refractory material.


2. Lightweight, thermal insulation:

Cenosphere has thin and hollow walls and a semi-vacuum in the cavity. There is only a trace amount of gas (N2, H2, CO2, etc.), and the heat conduction is extremely slow and minimal.


3. High hardness and high strength:

Because Cenosphere is a hard glass body formed from the silicon-aluminum oxide mineral phase (quartz and mullite), the hardness can reach Mohs 6-7, the static pressure strength is as high as 70-140MPa, and the true density is 0.75-0.90 g/cm3.


4. Fine particle size and large specific surface area:

The natural particle size of Cenosphere is 1-250 microns. The specific surface area is 300-360g/cm2, which is similar to cement.


5. Excellent electrical insulation:

Cenosphere’s resistance increases with the increase of temperature. This advantage is not available in other insulating materials.


Download: CENOSPHERE COA     

 

CHEMICAL COMPOSITION(%)

SiO2

55-65

Al2O3

28-33

Fe2O3

2-4

CaO

0.8-1.5

MgO

0.7-1.2

PHYSICAL PROPERTY

Particle Shape

Powder Granule

Color

White Gray

Specific Gravity(g/cm3)

0.8

Floatage Rate(%)

97



Download: CENOSPHERE COA