Shizuishan Jin Lin Corundum Refractories Co., Ltd.

China Manufacturer with main products: White Corundum, Brown Corundum, Black Corundum, Silicon Carbide, Quartz Sand, Activated Carbon

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Black corundum

FOB Price: 160.00 - 1,200.00 USD/Tonne
Supply Ability: 1,000 Tonne(s) per Month
Shipping: Ten days
Payment Terms: D/P
In Stock
Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Ningxia in China
Packaging Details: 25 kg woven bag packaging, also can be customized according to customer request packaging!



Black corundum profile

Black corundum smelting method basically and brown fused alumina smelting production methods. Black corundum production method is to choose the high quality bauxite, iron oxide, such as raw material, add other trace elements, by the dumping of electric arc furnace smelting carefully, to ensure the smelting of massive black corundum all for one, less impurity, high grade and stable quality. For producing moderate hardness and toughness, good use of high performance and stable period of sand, sand particle size, and micro powder laid a foundation.

Black corundum and low aluminum corundum, is in the electric arc furnace in bauxite made by melting a is given priority to with alpha Al2O3 and spinel mineral phase - colored crystals, its characteristic is Al2O3 content is lower, and has a certain amount of Fe2O3 (10%), thus has moderate hardness, high toughness, high temperature resistant, thermal steady state performance characteristics. More for free grinding, such as the beat of the products before electroplating grinder coarse grinding.


Black corundum purposes

Jin Lin black corundum with high hardness, good flexibility, good abrasion resistance, high strength characteristics, in the chemical industry system, used for all sorts of reaction vessel and pipe, polishing sand blasting, chemical pump parts; To do mechanical parts, all kinds of mold; Do the cutting tool, mold made of abrasive abrasive, use it:

1, surface processing, metal oxide, carbon black, metallic or nonmetallic surface rust removal, such as gravity die casting, rubber mold of oxides or removal of the debonding agent, ceramic surface spots, color removal of uranium, coloured drawing or pattern.

2, beautify processing: all kinds of gold, K gold jewellery, precious metals products of extinction or fog surface processing, crystal, glass, corrugated, the fog of the force that press a gram etc. Nonmetal surface processing and can make the machining surfaces into metallic luster.

3, etching processing: jade, crystal, agate, semi-precious stones, seal, stone, antiques, marble tombstone, ceramic, wood, bamboo, etc. The etching of the artists.

4, pre-treatment processing: TEFLON (TEFLON), PU, rubber, plastic coating, rubber ROLLER (ROLLER), electroplating, metal spray welding, plating titanium before processing, increase the surface adhesion.

5, burrs and processing: bakelite, plastic, zinc and aluminum die-casting products, electronic components, the flash removal of magnetic core, etc.

6, stress relieving processing: aerospace, defense, precision industry parts, rust removal, in addition to paint extinction, renovation, etc. The stress relieving treatment.

7, electronic parts processing, the fog of silicon surface and etching, impurity removal on the back of the wafer, glue of encapsulated electronic components, marking the surface of the finished product, ceramic electric heating of the clean

8, mold processing: generally the sand on the surface of mould, mold texture fog after surface processing, line cutting mold, glass mold and tire mold, conductive rubber mold, shoe mold, electric block, electroplating, button mold, plastic mold.

9, predominate crop processing: large artifacts such as oil, chemical tank, hull, copper, tin, container, derusting of automobile industry, etc, in addition to paint, maintenance and large flat glass automatic mist treatment.


Black corundum transport storage considerations

1, transport and loading and unloading, in the course of carriage, shall not use iron hook towing, should prevent and hard material mixture, not a strong vibration, friction, hit, hit, it is strictly prohibited to throw, should be light light discharge, in order to reduce the black corundum packing broken, affect the use.

2, storage: should be stored in a cool and dry place, prevent both inside and outside packing bag is broken, and prevention of be affected with damp be affected with damp and other substances in the air, adsorption effect use effect. With no toxic or harmful gases or volatile substances mixed with, keep to stay away from pollution sources.

Black corundum

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