Do You realize why We Use Chromium Oxide as Abrasive Material?

Chrome oxide is dichromium trioxide, generally referred to as Green Chrome Oxide. It’s tiny hexagonal crystal having a colour from light green to dark green. It may be added into Ceramic Pigment or Chrome Green Ceramic Pigment. It turns brown when getting heated up, following cooled down it nevertheless turns to green. The crystal is extremely tough and most steady, even in the glowing state the hydrogen is passed via, it nonetheless has no adjust. It’s soluble in heated Potassium bromate answer, slightly soluble in acids and alkalis, practically insoluble in water, ethanol and acetone. Its relative density is 5.22, melting point about 2435℃ and boiling point 4000℃. It truly is irritating. It’s mostly utilized for smelting metal chromium and chromium carbide, so we are able to frequently see the fused chrome oxide. It could also be utilized for the colorants of enamel, ceramics, artificial leather, building components, or catalysts for organic chemical synthesis, sun proof paint, abrasive materials, green polishing paste and special ink for printing paper cash. Besides, it may be utilized within the production of refractory for example high chrome brick, chrome corundum brick. Then you definitely could wonder why we use Chromium Oxide as abrasive material?

The reason is since the lapping tool and operate piece are soft, so within the polishing method the abrasive material is suspended among the work piece and lapping tool, mainly make use of the chemical action of plane polishing machine along with the function piece surface to make a layer of quite soft oxide film, and also the membrane at convex point can easily be rub out by abrasive material, in this strategy we can get quite fine surface roughness, processing various steel, hardened steel, cast iron, copper and aluminum and their alloys, hard alloy, ceramic, glass and a few plastic merchandise and so on. the surface polishing of a work piece is usually carried out following getting polished; for manual surface polishing, the polishing agent have to be coated on a polished plate, you must hold the operate piece for a straight line reciprocating movement or "figure 8” motion, possessing polished to get a specific period of time, the perform piece need to be turned from 90 degrees to 180 degree to prevent the inclination of a function piece.

The operate piece of a surface polishing machine contacts with a grinding equipment randomly, the higher spot could be trimmed each other, the error is decreased steadily, along with the precision is also enhanced, so it can be utilized to detect the function piece, generating targeted modifications to the polishing position and grasping the grinding time, making sure the precision of the dimension and shape, obtaining dependable processing high quality; for the surfaces on the operate piece which are to be grinded partly like facet, square hole and narrow slit, and so on., we are able to also hand-hold the grinding gear to polish them, the surface on a large batch of straightforward parts may also be polished around the surface polishing machine, so it might widely used for processing various high precision surface in the single and small batch production, and may be utilized for mass production, may be carried out the cutting length amongst 0.01|¨¬m and 0.1|¨¬m of a perform piece, getting really high accuracy as well as a very low Ra value, but we typically cannot raise the position accuracy between the processing surface and the other surface.