320# Brown Aluminum Oxide For Blasting Surface Treatment Low Depletion

Brown Corundum 320# Is Used For Sandblasting Grinding Process

1. Product Introduction

Brown corundum is used bauxite, coke (anthracite) as the main raw material, which was smelt by high temperature in the arc furnace. Abrasive blasting has the characteristics of short grinding time, high efficiency, good benefit and low price. The product has moderate hardness, high toughness, good self-sharpening, low sand consumption, recycle and reuse, and good grinding finish. The chemical composition is stable, wear-resisting, acid and alkali resistance. The abrasives have conchoidal structure, sharp edges and corners, which can form new edges and corners in the continuous grinding, so that its grinding ability is better than other abrasives. In particular, it has the advantages of high hardness, big specific gravity, stable chemical properties and unique self-sharpening, which makes it a good choice for abrasive blasting process. It can make workpiece derusting, decontamination, remove oxidation skin and welding slag for achieving matte effect.

2. Performance Parameter

3. Characteristic

1). Less dust

Brown corundum was used as sandblasting surface treatment, because of its relatively high density, so that is less dust in the process of sandblasting. This ensures operator health and safety, at the same time it can improve operator visibility. (Compared with slag: in the formation process of slag, cold water or even seawater is used for high temperature cooling, so it form the glass phase structure, with breakability. Because slag is relatively brittle, in the process of grinding, easy to be smashed into small particles. Because the slag is relatively brittle, it is easy to be crushed into small particles in the process of sandblasting. Because the density of slag is relatively small, which results in small slag particles suspended in the air and environmental pollution. Similarly, quartz sand is a very fragile abrasive.)

2). High Efficiency

Brown corundum, under a certain pressure, can quickly impact the surface of the object with a large number of sharp edges, so it is regarded as a very fast spray grinding method. The acceleration and velocity of particles in the air flow are a function of inertance and particle size. The smaller the particle, the easier it is to accelerate and thus produce a higher impact force on the surface of the object, so that resulting in a very high cleaning rate, usually twice as fast as other conventional abrasives.

3). Low Depletion

The unique particle size of brown corundum ensures that more effective particles can hit the surface of the object, so the use of brown corundum can greatly reduce the loss of abrasive.

4). High quality surface treatment

In the process of sandblasting, brown corundum can penetrate deep into the holes and pits on the surface and reach the bare surface of the metal, so it can completely remove all rust, water-soluble salts and other pollutants. The treated metal surface is very clean and free of embeddings, and the quality is easily up to standard grade. Relatively speaking, such as copper slag and nickel slag, the coarse sharp edges and corners of slag are easy to remain on the surface of steel after sandblasting, which leads to the failure of the initial coating and poor coating effect.

5). the environment

Different from conventional abrasive materials, brown corundum is a pure non-toxic mineral, which does not contain harmful free silicon substances that lead to silicosis, toxic heavy metals or radioactive pollutants. In addition, the low consumption and recyclability of products can greatly reduce the amount and cost of waste disposal after the product is used.

6). Recyclable

Brown corundum is very suitable for many fields. Normally, it can be reused several times. If it has not lost its cutting ability after the first time, the number of cycles can be more. Without cutting ability, brown corundum can also be recycled and applied to the construction industry as cement additive.