Scratch grinding plate is a type of abrasive particle that is coated or pressed onto a grinding plate in order to achieve precision and surface smoothness of the workpiece. A cast iron flat plate derived from the precision machining of the machined surface by grinding the relative motion between the flat plate and the workpiece under pressure. A grinding plate is a form of sanding on a plate embedded with diamond abrasive in grinding processing. In this form, a grinding tool is an important main tool, which is called a sand embedded grinding plate Grinding plates have uniform organization, dense structure, no defects such as sand holes, pores, and looseness It is easy to sand, with evenly distributed and abundant sand particles. The sand particles are firmly embedded and cut, with a smooth surface, shiny oil, sky blue color, and good performance.

Characteristics of grinding platform:

1. Easy to operate, fast sanding, sufficient sand embedding, and still easy to apply the same type of sand after use. After polishing, the smoothness is significantly improved.

2. It is easy to measure the required high smoothness and adhesion of the block, and the workpiece mirror surface is shiny green.

Classification of scraping flat plates: Scratching flat plates can be divided into slotted scraping flat plates and sand embedded scraping flat plates.

1) The slotted scraping flat plate is used for wet grinding. In order to scrape off excess abrasive, ensure even contact between the workpiece and the flat plate, and improve the flatness of the processed workpiece, the heat generated by grinding is easily dissipated. This type of flat plate has intersecting square grooves or 60 degree V-shaped grooves on the working surface, which is also named after it. It is mainly suitable for rough machining.

2) As the name suggests, the sand embedded cast iron grinding plate is used for dry grinding, and its abrasive is diamond sand in the surface layer, which is suitable for precision machining.