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The influencing factors on the quality of the galvanized speed and have

by:HONTA     2020-08-24

galvanized refers to the surface of metal, alloy or other material coated with a layer of zinc in surface treatment technology in one of the beautiful, rust, etc. Is mainly USES the method of hot dip galvanized. Common factors affecting the quality of galvanized speed and what is the content of sodium hydroxide sodium hydroxide higher content in the plating solution artifacts suspension method when the high current efficiency reduced and zinc anode spacing is too big, should be adjusted. By piece area is insufficient to estimate applied plated on the distribution of current density is too small anode passivation effective area decrease, affect the normal distribution of the current workpiece through reduce the deposition potential of hydrogen corrosion surface hydrogen evolution to accelerate the current efficiency is reduced, thus affecting the zinc deposition rate. Should add the right amount of corrosion inhibitor in acid pickling solution, local area to remove oxide skin too thick to use mechanical method, more in pickling process to check if a low content of sodium hydroxide sodium hydroxide content is low, the current density is not high, the anode passivation artifacts high carbon content of high carbon steel, cast iron pieces will reduce the deposition potential of hydrogen, the acceleration of the surface activity of hydrogen evolution, current efficiency reduce consumption of conductive adverse current in the conductor and assigned to too little electricity plating solution on the surface of the workpiece temperature is low when the corresponding reduced at low temperature distribution of current density, the deposition rate of electroless plating must also reduce the workpiece binding local blocked too close when galvanized artifacts caused by coating a thin low additive content in the plating solution is low additive content will affect the dispersion ability, local too thin coating is galvanized equipment related matters above, hope to be able to help you

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