Product Details

China factory price wholesale high purity high quality superfine silica powder for jewelry casting precision casting with low price

Place of Origin China
Purity 2N
Type Silica Powder

Product Features

Product Introduction

Silica powder for jewelry casting and precision casting is a kind of inorganic non-metallic mineral functional powder material, which is made of natural quartz, fused quartz and cristobalite by fine processing such as color separation, magnetic separation, grinding and precision classification. It has good temperature resistance, acid-alkali corrosion resistance, low expansion and high purity, low stress, clean and smooth surface of castings.


Application:
It is used in precision jewelry casting such as gold, platinum,K gold and so on. It is the main raw material in jewelry casting process. It is used in precision stainless steel casting, shoe mold casting, advanced building materials, national defense and other fields.

Main Features:

1.High purity, good whiteness and uniform particle size distribution.

2. Acid and alkali corrosion resistance, low expansion, high purity and low stress.

3. Good fluidity, high fire resistance, low expansion coefficient and crack resistance.

4.Casting surface is smooth and delicate, which can greatly reduce the polishing cost of users.

5. Low price and can replace expensive zircon powder.

6. Imported casting powder is very expensive, which brings huge cost burden to users. After years of research and innovation, Haosen Mineral has broken the technical blockade of foreign countries. Not only low price, good quality, but also greatly reduced the production cost of users, which makes the domestic casting industry get rid of dependence on foreign casting powder.


Technical Data Sheet


Item

Unit

Standard Scope

Typical Values

Appearance

-

White   powder

600mesh

SiO2

%

99%-99.8%

99.6

Mean Grain size

µm

2-25

11.98

Whiteness

%

90-98

92

Fe2O3

%

≤0.03

0.008

Burning   Vector

%

0.1-0.3

0.16

PH   Value


6.5-8.0

7.2

Moisture

%

0.02-0.1

0.08

Cristobalite   Content

%

65-95

73.8

BET(SSA)

/kg

1700-8000

5645

Density

g/cm3

2.65

2.65

Moh's hardness


5-7

7

Melting point

1750

1750

We can produce 400-6000 mesh products with   different specifications according to customer’s requirements.






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