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Cenospheres for Refractories, Insulating Materials, Castables

Hebei Gator Chemicals Technology co.,ltd

Cenospheres for Refractories, Insulating Materials, Castables

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Brand Name : Gator

Model Number : JD-103

Place of Origin : China

MOQ : 20MT

Price : USD600-1300/MT

Payment Terms : L/C, T/T, Western Union

Supply Ability : 600MT/M

Delivery Time : 10workday

Packaging Details : 25PP bag/ 600KGS baffled bag

Material : SiO2 and Al2O3

Bulk Denity : 0.4-0.8

True Denity : 0.9Max

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Cenospheres for Refractories, Insulating Materials, Castables
Cenospheres is a kind of fly ash hollow ball that can float on the surface of the water. It is grayish-white, thin and hollow, light in weight, with a bulk density of 250-450kg/m3, a particle size of about 0.1 mm, a closed and smooth surface, and a small thermal conductivity. Refractoriness ≥ 1700 ° C, is an excellent insulation refractory material, widely used in the production of lightweight castables and oil drilling. The chemical composition of the floating beads is mainly composed of silica and alumina and it has various functions such as fine particles, hollow, lightweight, high strength, wear resistance, high-temperature resistance, thermal insulation, insulation and flame retardancy every industry.
1.Chemical composition:
Item SiO2 Al2O3 Fe2O3 SO3 CaO MgO K2O N2O
Content 56-62 30-38 2-4 0.1-0.2 0.2-0.4 0.8-1.2 0.5-1.1 0.3-0.9

2.Physical properties:
Iem Test Item Test
Shape

high fluidity

Particle size

10-400

Color

Light gray white

Specific resistance

1010-1013

True density

0.5-0.8

Mohs hardness

6-7

Bulk density

0.3-0.5

PH

6

Refractoriness

1750°C

Melting point

≥1400

Temperature coefficient

0.000903-0.0015

Thermal conductivity

0.054-0.095

Compressive strength

≥350

Refractive index

1.54

Burnout rate

1.33

Oil absorption rate

0.68-0.69

Cenospheres for Refractories, Insulating Materials, Castables

3.Characteristics :
(1). High refractoriness:
the main chemical composition of the floating beads is silicon and aluminum oxide, wherein the silicon dioxide is about 50-65%, and the aluminum oxide is about 25-35%. Because the melting point of silica is as high as 1725 degrees Celsius, the melting point of aluminum oxide is 2050 degrees Celsius, which are all high refractory materials. Therefore, the floating beads have an extremely high degree of refractoriness, generally reaching 1600-1700 degrees Celsius, making them excellent high-performance refractories.
(2). Light-weight:
thermal insulation; floating beads wall is hollow, the cavity is semi-vacuum, only a very small amount of gas (N2, H2, and CO2, etc.), heat conduction is extremely slow. Therefore, the floating beads are not only lightweight (weight: 250-450 kg / m3), but also excellent thermal insulation (thermal conductivity normal temperature 0.08-0.1), which laid the foundation for its role in the field of lightweight insulation materials.
(3). High hardness, high strength:
because the floating beads are made of silicon-aluminum oxide mineral phase (quartz and mullite) hard glass body, the hardness can reach Mohs 6-7, static pressure strength is as high as 70-140MPa, true The density is 2.10-2.20 g/cm3, so the floating beads have high strength.
(4).the insulation is not conductive:
generally, the resistance of the insulator decreases with the increase of temperature, the floating beads are opposite, the resistance increases with the increase of temperature. This advantage is not available in other insulating materials. Therefore, it can be made into an insulating material with excellent performance.
(5). fine particle size, large specific surface area;
floating beads naturally formed particle size of 1-250 microns. The specific surface area is 300-360g/cm2, which is similar to cement. Therefore, the floating beads do not need to be ground and can be used directly. Fineness can meet the needs of various products.

4. Usage :
Insulation caps (also known as risers) are part of the mold. The riser is used to store the molten metal, to supplement the part of the casting that shrinks due to the solidification of the metal, so as not to form a shrinkage hole in the casting itself, and also has the functions of exhausting and scumming. That is, the function of the riser is mainly to supplement, improve the quality of castings, increase the yield of castings, and reduce metal loss. The thermal insulation cap produced by using a reasonable proportion of floating beads has good thermal insulation performance, especially the thermal insulation performance at high temperature; the inner quality of the casting and the compactness of the casting can be improved, and the sand drop phenomenon of the riser portion can be avoided; The sand used for modeling greatly reduces the cost; at the same time, when the floating bead insulation cap is cast, it is smokeless, airless, and odorless, and the casting does not adhere to the casting and does not pollute the environment after solidification. The floating bead ceramic filter is a new type of filter developed in recent years. Through the floating bead ceramic filter, it can effectively remove or reduce the inclusions in the molten metal, improve the purity of the metal liquid, and make the cast. The metal casting has a smooth surface, uniform structure, improved strength, and reduced scrap rate, which further reduces machining loss and improves production efficiency.

5.Specifications:
40-60 mesh, 80-120 mesh, 150-200 mesh, 200 or more (PS) and other products.
6.Our servic:
(1)Free Samples
--Free samples within 1-2KGs, but the delivery fee should be paid by your side.
(2)All-over Certifications
--We can supply MSDS, TDS, Test Report, Place of Original (Form A, Form E,etc.), SGS test, etc. certifications.
(3) Strictly Quality Control
--Our strictly Quality Control Dept.,will inspect each batch of goods before loading, only after the goods qualified, it can be allowed to out of the factory.
(4)Profesional Document Service
--After shipped, our professional document department will serve you all the documents for you timely.

7.Contact

Hebei Gator Chemicals Tech

Reg. Off: Qiaoxi District, Shijiazhuang city, Hebei province
Contact: Jerry Joung

Tel: +86015511498655
Email: jerry@gatorchems.com

Twitter:jerryyoung2014


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