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Polishing of stainless steel jewelry


                                                                                                                                                             Polishing of stainless steel jewelry

Currently commonly used methods are: electrolytic polishing, electrochemical polishing, mechanical polishing

1. The electrochemical polishing process is divided into two steps: (1) Macro leveling: the dissolved product diffuses into the electrolyte, and the geometric roughness of the material surface decreases, Ralμm. (2) Low-light leveling: Anode polarization improves surface brightness.

2. Electrolytic polishing: use acidic electrolyte (strong acid), put the sample to be polished into the current (approximately 7mA), the anode will dissolve, the protruding parts will dissolve faster due to the magnitude of the current, and the surface will tend to be flat. Achieve the final polishing effect (the effect can be seen within about 10 minutes). The basic principle of electrolytic polishing: the same as chemical polishing, that is, the surface is made smooth by selectively dissolving tiny protrusions on the surface of the material. Compared with chemical polishing, the effect of cathode reaction can be eliminated, and the effect is better.

3. Mechanical polishing: For the rough surface of the stainless steel plate to achieve the decorative effect, it must be polished with an abrasive belt polishing machine on the roller frame. First, use 120# abrasive belt. When the surface color reaches the end, change 240# abrasive belt and polish. When the surface color is up, then change 800# abrasive belt, and when the surface color is up, change 1200# abrasive belt again, and the effect of the decorative stainless steel plate will be thrown.

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