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The surface of the stainless steel processing

Angelina Dong Original 2015-07-21 14:57:21

The surface of the stainless steel processing

This is a kind of metal removal process, in the process of stainless steel as anode in the electrolyte, the metal from the surface to remove after the power supply.

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    The surface of the stainless steel processing technology which is a metal removal process, in the process of stainless steel as anode in the electrolyte, the metal from the surface to remove after the power supply.This process is typically used for spare parts processing, because their shape is difficult to use traditional method for polishing.The process used in the surface of cold rolled steel sheet, because its surface is larger than that of hot rolled steel plate surface is smooth.But the electrolytic polishing can make impurity on the surface of the more obvious, especially titanium and niobium stability of materials will appear due to particulate impurities make weld area differences.Small welding scar and sharp edges can be removed through the process.The process on the surface of the handling of highlights, give priority to dissolve them.Electrolytic polishing process is to immerse stainless steel in heating liquid, ratio of liquid involves many proprietary technology and patent technology.Austenitic stainless steel electrolytic polishing effect is very good.

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    1, textured surface processing stainless steel has a variety of decorative pattern can be used.Make the steel plate possesses the advantages of add pattern or textured surface processing is as follows:

    (1) to reduce the "metal roofing material shrinkage" (oilcan - ning), the word is a term used to describe the light on the surface of the material, the surface from the optical point of view.For example, the thin veneer of large area, even after stretching or tension often is difficult to make the surface completely flat, so there will be a metal roof material shrinkage.

    (2) the checkered pattern can reduce the glare from the sun.

    (3) the pattern plate if there is a slight indentation scratches and small area are less obvious.

    (4) to increase the strength of the steel plate.

    (5) provides the architect choice.Proprietary design including fabric (used in London, Ed building), Mosaic, pearl and grain leather.You can also use the corrugated and linear patterns.Particularly suitable for interior decoration decorative pattern surface, such as: elevator panels, counter, wall plate and the entrance.External applications should take into account the surface of stainless steel can through the rain and artificial scour to clean, to avoid has a corner, prone to gather dirt and impurities air so as not to cause corrosion affect beautiful.

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    2, rough surface machining rough surface is one of the most commonly used surface processing, it is after polishing or bright annealing of steel plate surface or brush with nylon abrasive belt polishing.

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    3, spray glass ball or shot peening for internal applications, such as: the interior of the elevator, blending surface processing is very popular.The hybrid technology is formed by spraying glass ball matte surface, and then through the mask processing, covering plastic film, polishing surface processing, finally forming a mixture of polishing and matte surface.Stainless steel sand pill can also be used in a similar process.To use the glass ball or pill should never be used on other materials in advance, especially on the carbon steel.Because carbon steel powders will be embedded into the surface of stainless steel, it is easy to cause corrosion.Ceramic ball can also be used as a material.

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    4, color stainless steel stainless steel color process (INCO) is the international nickel company successfully developed in the 70 s, many companies have used this technology license.It has already been explained, stainless steel does not rust because its surface layer of chromium oxide film.Color process is to use the membrane to form the specified color.Because the stainless steel use the ever-present membrane layer, so does not fade, do not need like paint often maintenance.Color stainless steel can also carry on the molding processing, even in the sharp bend will not have any adverse effects on the color.About the influence on the corrosion resistance, trials showed that the corrosion resistance by using this technology.This process is closely related to the operation time, time will change different colors.A color change order is brown, gold, red, purple and green.An important characteristic of the process is the final look of it can reflect the material of the original surface, namely: the mirror or polished surface will produce strong metallic luster, and the rough surface finish is matte color.Process: the process is left in solution tank, stainless steel, preferably in the solution contains every litres of 250 grams of Cr2O3, every litres of 490 grams of sulfuric acid can also, temperature range 80 ~ 85 ℃, soak time depends on the color of the need, not more than 25 minutes.Steel plate with clean cold water rinse, then at room down on the concentration of 250 g / 1 chlorate and 2.5 g / 1 litres of phosphate cathode in the liquid, and time is about ten minutes, current density of 0.2 ~ 0.4 A/dm2.In order to prevent damage, color after processing hardening treatment immediately, and then in hot water to rinse and dry.

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    5, mixed color can add pattern on the stainless steel surface processing, the development of proprietary technology, including with corundum sand belt to remove "highlight" part, in this way, the end result is the natural beauty of steel sheet and color design of the color together.The surface is not easy to leave fingerprints, especially suitable for interior decoration.Polishing factory can provide surface processing samples.