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

Chrome oxide is dichromium trioxide, generally called Green Chrome Oxide. It’s tiny hexagonal crystal using a colour from light green to dark green. It may be added into Ceramic Pigment or Chrome Green Ceramic Pigment. It turns brown when obtaining heated up, following cooled down it still turns to green. The crystal is incredibly difficult and most steady, even within the glowing state the hydrogen is passed via, it nevertheless has no adjust. It’s soluble in heated Potassium bromate answer, slightly soluble in acids and alkalis, nearly insoluble in water, ethanol and acetone. Its relative density is 5.22, melting point about 2435℃ and boiling point 4000℃. It's irritating. It’s primarily employed for smelting metal chromium and chromium carbide, so we are able to typically see the fused chrome oxide. It could also be used for the colorants of enamel, ceramics, artificial leather, building supplies, or catalysts for organic chemical synthesis, sun proof paint, abrasive supplies, green polishing paste and special ink for printing paper income. In addition to, it can be utilized within the production of refractory such as higher chrome brick, chrome corundum brick. Then you definitely might wonder why we use Chromium Oxide as abrasive material?

The purpose is because the lapping tool and perform piece are soft, so within the polishing approach the abrasive material is suspended between the work piece and lapping tool, mainly use the chemical action of plane polishing machine and also the perform piece surface to make a layer of very soft oxide film, along with the membrane at convex point can simply be rub out by abrasive material, within this technique we can get really fine surface roughness, processing a number of steel, hardened steel, cast iron, copper and aluminum and their alloys, tough alloy, ceramic, glass and some plastic merchandise and so forth. the surface polishing of a operate piece is usually carried out following becoming polished; for manual surface polishing, the polishing agent must be coated on a polished plate, you need to hold the perform piece for a straight line reciprocating movement or "figure 8” motion, getting polished for a specific period of time, the work piece need to be turned from 90 degrees to 180 degree to prevent the inclination of a work piece.

The function piece of a surface polishing machine contacts having a grinding equipment randomly, the higher spot can be trimmed each other, the error is lowered progressively, and the precision can also be enhanced, so it can be employed to detect the work piece, creating targeted adjustments towards the polishing position and grasping the grinding time, guaranteeing the precision of the dimension and shape, acquiring reputable processing good quality; for the surfaces around the work piece which are to become grinded partly including facet, square hole and narrow slit, and so forth., we can also hand-hold the grinding equipment to polish them, the surface on a large batch of straightforward parts may also be polished on the surface polishing machine, so it might broadly utilized for processing numerous higher precision surface inside the single and modest batch production, and may be employed for mass production, could be carried out the cutting length in between 0.01|¨¬m and 0.1|¨¬m of a function piece, getting very high accuracy along with a very low Ra value, but we typically cannot raise the position accuracy among the processing surface and the other surface.