on 18 Cr-8 Ni Stainless SteelGrease-base Compounds are generally used for giving gloss to table and kitchen wares made of stainless steel. However, the effects of these compounds for gloss-buffing have not yet been scientifically studied, and the practical buffing operations in workshops are mainly relied upon the skill of operators.The object of the authors' study is to manufacture excellent gloss-buffing compounds.The authors analyzed the gloss-buffing compounds employed in Tsubame, Niigata Pref. and studied the relation between the elements of the compounds and the effects of gloss-buffing.As the results, it was found that all of gloss-buffing compounds employed in Tsubame are composed of the finest abrasive grains in a binder of oils and fats having deep effects on glossing.
The authors studied the effects of grain size of chromic oxides and the constituents and blending ratio of fatty acids on the gloss-buffing ability. The results obtained were as follows. (2) The most desirable fatty acid to be added to grease-base buffing compounds was myristic acid and its blending ratio was 17%. (3) 18 Cr-8 Ni stainless steel was more easily polished than 13 Cr or 18 Cr steel by the same grease-base buffing compound. (4) For 18 Cr-8 Ni and 13 Cr steels, there were found almost no differences of polishing between work-hardened metals and annealed ones by the same buffing compound.
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