What are the F, P, and W in the aluminium oxide specifications?

I often have customers call and say, I want brown fused alumina or white corundum, ask what specifications, F sand or W sand, customers will be confused. Today we will talk about this issue about brown corundum specifications.

Because there are several types of abrasive products, such as F sand, P sand, and W sand, there are also sand, sand (grain size sand). There are big differences in the use of different specifications of products, and the quality is also different. So what are the differences between such a variety of aluminium oxide products?

First of all, the following brown corundum F sand, this kind of product is ordinary brown corundum abrasive products, the main grain size is from 4 mesh to 240 mesh, the main use is the grinding and polishing of various castings, workpieces, etc. It is applied to the production of various grinding wheels.

Compared with F sand, brown corundum P sand has better quality. It needs to be subjected to multiple processing steps such as pickling, water washing and air selection. Its particle size is generally from 8 mesh to 220 mesh, more The purpose is to use a grinding process for high-precision workpieces.

The W sand in brown fused alumina belongs to the brown fused alumina micro-powder series. The section is from W1-W63, and the particle size is very fine. It is basically used for polishing and grinding of ceramic products, precision workpieces and glass products.

The brown corundum P sand, F sand and W sand introduced in the above are all in the range of brown corundum granular sand, because they all have a fixed grain size number, also called sand. The brown corundum sand is different, such as the commonly used 1-3mm, 3-5mm, 325-0, etc. are all segmental sand, because this type of brown fused alumina is between some two values, multi-purpose In the manufacture of anti fire materials.