2013年8月9日星期五

Corundum powder processing process

Fine polishing abrasive grinding process-flow indispensable processing materials. As part of the diversity, there must be a corresponding fine polishing abrasives.
Corundum, white corundum, white corundum, with a homogeneous, suitable hardness, wear resistance, etc., use unbreakable to technical appraisal by experts, to fill the gaps, reached the international level of similar products to replace imports, with the kind polisher machines.
Corundum powder is used in ultra-fine grinding of a computer chip components, electronic communication products silicon components, rocket engine temperature component, high temperature gas turbine blade components, such ultra-fine grinding corundum powder production methods, based on aluminum hydroxide as raw material, after calcination, grinding, pickling, grading and drying to obtain, for the particle size of 40 microns or less fine powder, classified by hydraulic sedimentation method, from fine to coarse classification carried out in the first level of fine, coarse level, after that , the classification is completed until all.
Classification method in the strict control slurry concentration, settling time, while the siphon height, adding an efficient dispersant, the dispersant molecule in water between aggregated particles interspersed, including all attached to the periphery of particles of different sizes, by dispersant molecular charge repulsion, the particles can no longer get together, both to improve the accuracy of such classification, but also makes the final product can be kept loose state.

 

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