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The difference between pickling passivation and electrolytic polishing of stainless steel valves

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Update time : 2020-06-12 10:04:51

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There are many surface treatment processes for stainless steel, such as: cleaning and degreasing, derusting, passivation, pickling, rust prevention, polishing, electroplating, electrophoresis, etc. Each stainless steel product manufacturer will choose different surface treatments according to its own production process needs the way. In recent years, the more mature and extensive processes used include surface treatment processes such as stainless steel pickling and passivation and stainless steel electrolytic polishing.

1.Pickling and passivation of stainless steel valves: that is, immersing the entire stainless steel parts in stainless steel pickling and passivating liquid until the surface of the stainless steel parts is completely uniform and silver-white, then take out the workpiece and rinse the surface with clean water. Most manufacturers of stainless steel products that require pickling and passivation are required to remove the welding scars and high-temperature oxide scale on the surface, and make the surface color of stainless steel parts uniform and beautiful. The scope of application of this process is relatively wide: for example: stainless steel chemical pipeline treatment, stainless steel weldment pickling treatment, stainless steel valve cleaning treatment... Since the stainless steel pickling passivation solution can be used repeatedly, without evaporation, non-volatility, yellow smoke and hydrogen embrittlement, the operating environment is good and no special equipment is needed, because it is favored by the majority of stainless steel product manufacturers.
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2.Electrolytic polishing of stainless steel valves: the stainless steel to be polished is fixed on a professional hanger, then the electrolytic polishing equipment is turned on, the power supply voltage is adjusted at the same time, and then the fixed stainless steel parts are immersed in electricity and heated to 75 degrees In the electrolyte, the general time is 1-3 minutes. After the surface is bright, the workpiece can be taken out and rinsed. The brightness of the watch can be adjusted and controlled manually according to different requirements of various manufacturers. The surface of the stainless steel workpiece after electrolytic polishing shows absolutely consistent light and delicate effect, and its surface gloss can reach 8K mirror effect. And the lasting shine is as new as it will never flake. At the same time, this process can be applied to any shape of stainless steel products, all 200 series, 300 series, 400 series of stainless steel surface polishing, high production efficiency, low cost, no pungent smell, good operating environment, is the best choice to replace traditional machinery and manual polishing .
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