Why Black Aluminum Oxide is suitable for Polishing Stainless Steel Tableware?
June 19, 2019
Seen from the micro-structure of black aluminum oxide,the alumina particles has the main grinding and polishing effect,it is dispersed in micro-crystalline state,surrounded by the silica particles(lower strength).
When alumina particles are passivated to a certain extent in the grinding process,it will be separated from the silica particles and fall off,then appears a new cutting edge again,which is similar to the principe of SG abrasive.
Therefore black aluminum oxide has the good self-sharpness,not easy to burn the treatment surface.
Compared with other higher hardness abrasives such as brown aluminum oxide ,black aluminum oxide has the outstanding advantage of polishing stainless steel tableware,its moderate hardness and good self-sharpness will generate little heat in the treatment surface,then hardly to burn the treatment,finally achieve uniform and bright color.
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