Why do diamond polishing pads become dull?

In the process of daily work, everyone needs to polish some products around them, especially floors or some floors. 

We need to use water-abrasive discs to renovate them to improve the beauty of the ground. 

But when using water-abrasive discs, In the process, many friends will find that these water wet grinding discs will become dull after being used for a period of time, which will definitely affect our processing. Next, let's analyze the reasons for the dullness of the grinding discs.

When we use diamond grinding polishing discs, we inevitably find that some abrasive tools do not work well and the abrasive grains are dull. During the grinding process, not only due to friction and extrusion, the abrasive grains will produce mechanical wear, but also due to high temperature. It causes plastic deformation, making its sharp edges and corners rounded and dull, thus losing its cutting ability.

The grinding wheel is clogged during the grinding process, the pore condition of the grinding polishing disc plays an important role in the grinding process. Often when processing ductile metals, the water grinding discs become rapidly clogged, causing the life of the grinding wheel to end prematurely. In addition, abrasive debris, broken abrasive grains, binders, etc. are often embedded in the gaps between the abrasive grains. In this quiet situation, Under this condition, even though the abrasive grains are still sharp, the water-abrasive disc no longer has cutting ability.

The shape of the water grinding disc is distorted, which is caused by the uneven shedding of abrasive grains on the working surface of the grinding disc. This situation is prone to occur when the hardness of the water grinding disc is too soft. After the shape of the grinding disc is distorted, the geometric accuracy and surface roughness of the surface of the workpiece to be processed will be affected, so the grinding disc will not work properly.