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Black Fused Alumina

Author:Jinlin corundumTo update: 2016-09-06

Black Fused Alumina definition:

Jinlin black fused alumina abrasives is high quality bauxite as the main raw material, add a little and then the reducing agent, in an arc furnace smelting, color black. So Jinlin black fused alumina, also known as low aluminum fused alumina, is in the electric arc furnace, bauxite smelting in a prepared α- alumina spinel and iron ore mainly gray-black crystal phase, which is characterized by oxidizing low aluminum content, and there is a certain amount of Fe2O3 (10%) exists, which has a moderate hardness, high toughness,high temperature,thermal performance characteristics of a given temperature.

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Jinlin black fused alumina features:

Jinlin black fused alumina hardness, toughness greater wear sharp edges and corners, strong self-sharpening, grinding less heat,high polished workpiece cleaning, polishing its performance is much higher than other similar products at home and abroad, the aluminum content more than 82% black fused alumina hardness, toughness, hardness and softness, wear durability; its adhesion and hydrophilic, easy on the disc; grinding less congestion, less heat, the work will not burn; self-sharpening strong, ergonomics high, and machined surface free of scratches, polishing finish high; more than double the capacity of more than brown fused alumina polishing, polishing finish raise more than two.

Jinlin black fused alumina smelting:

Jinlin black fused alumina smelting and refining production methods in a manner substantially the same as brown fused alumina. Jinlin black fused alumina smelting method is made of high quality bauxite, iron and other raw materials, the addition of other trace elements, through the pouring arc furnace smelting carefully to ensure that the massive black fused alumina smelting are all a product, fewer impurities, quality high quality and stability. For the production of moderate hardness, good toughness, good and stable performance of sand, sand grain size and powder foundation.

Jinlin black fused alumina applications:

Its unique performance, good grinding and polishing effect of Jinlin black fused alumina, more and more attention and favor of the broad masses of people. Sanshui and a water-type bauxite as raw material in electric arc furnace cooling from high temperature smelting. Basic black fused alumina abrasive material concentration, cutting ability, toughness, hardness and softness, wear resistance, and high efficiency. Black fused alumina abrasive, for stainless steel, metal plating and polishing the bottom surface before sandblasting, it is suitable for glass, wood, stone products, such as grinding and polishing and sand blasting.

Jinlin black fused alumina widely used tableware polishing industry, electroplating before the bottom surface polishing industry, metal surface treatment industry, glass industry, aluminum and stainless steel polish. Is manufacturing resin grinding wheel, cutting disc, emery cloth novel materials. Currently, the most widely used stainless steel tableware and fine polishing kitchenware, lighting lamps motorcycle parts, auto parts and other medium hard materials. Is manufacturing resin grinding wheel, cutting disc, novel abrasive gauze.

Jinlin black fused alumina markets:

Limited production of Ningxia Jinlin Gangyu basic black fused alumina abrasive grain concentration, cutting ability, toughness, hardness and softness, wear resistance, and high efficiency. Grinding and polishing is the ideal product blasting stainless steel products.

1:Free grinding, such as polishing the bottom surface of metal parts prior to plating, aluminum products.

2: Bicycles, motorcycles, sewing machines, watches and clocks, parts and components.

3: Polishing, lighting, plastics and hardware tools, etc., are also suitable for sandblasting (blasting, glass fountains).

4:Processing materials, manufacturing resin-cutting, angle grinding and grinding all coated and so on.

5:Black fused alumina sand grain size and powder is particularly suitable for grinding and polishing stainless steel parts and Whetstone, grinding paste manufacturing.

6:Black fused alumina of sand is the material of choice for the next non-slip surface and pit coal mine warehouse.

Jinlin black fused alumina indicators:

Item :Index

Colour: Black

Crystal: line trigonal

Hardness (Mohs): ≥9.0

Melting point (℃): 2050

Maximum use temperature (℃) :1850

True density (g / cc): ≥3. 50

Linear expansion coefficient (0-1600 ℃): 7-9

URL:http://www.fusedalumina1.com/63.html

Jinlin fused alumina

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