Email:jessy@jshengda.comWuxi Hengda Liquid-Purification Chemical Plant

Wuxi Hengda Liquid-Purification Chemical Plant

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Add:Nanyuan,Donggang Town,Xishan District,Wuxi City,Jiangsu,China



Contact Person: JessyZhou


Stainless Steel Pickling And Passivation Liquid With A Fast Cleaning Speed, Very Thorough

Stainless Steel Pickling and Passivation Liquid is our hospital according to customer requirements of the latest development of new products, comprehensive pickling passivation of stainless steel, remove all kinds of oil, rust, oxide, welding spots and other dirt, stainless steel surface after treatment into a uniform light Silver and white, nice, greatly improve the corrosion resistance of stainless steel and product added value, especially for 304 stainless steel parts, sheet and its small equipment, clean light treatment. The Stainless Steel Pickling and Passivation Liquid has the characteristics of fast cleaning and thorough cleaning, and it is bright and beautiful after cleaning the stainless steel workpiece, has little corrosion to the metal base, wide application range, low cost, simple operation, safe and reliable.

The effect of Stainless Steel Pickling and Passivation Liquid

Can effectively improve the metal surface corrosion resistance, extend the service life of the workpiece.

The third generation passivation fluid in addition to inherit the second generation of passivation with trivalent chromium and acid, but also increased the composition of silicon, usually by adding wet colloidal silica, its main role in the following aspects :

(1) to improve the adhesion of the passivation film. Silica added to the Stainless Steel Pickling and Passivation Liquid after the formation of colloidal solution, coated on the galvanized sheet and dried, the Stainless Steel Pickling and Passivation Liquid will be cured into a gel, and galvanized sheet has a strong adhesion.

(2) to keep hexavalent chromium. Silica can agglomerate hexavalent chromium in its gel, delaying the rate of hexavalent chromium loss and prolonging its time to self-healing.

(3) play a secondary anti-corrosion effect. Silica gel formed by the gel itself also has a certain role in isolation, to prevent the external moisture and gas into the galvanized layer surface, play a role in auxiliary anti-corrosion.

(4) to improve the product coating performance. Silica is present in the gel as polar particles, so that it can also act as a medium in addition to the other components of the passivation layer adsorbed on the surface of the galvanized sheet and can be coated with the passivation layer Layer of tightly combined, after changing the passivation of the galvanized sheet can not be painted the lack of coating, so that after the passivation of the galvanized sheet can not only continue to paint, and coating performance better. In fact, the addition of silica after the Stainless Steel Pickling and Passivation Liquid is closer to the composition of the color coat pretreatment liquid. So passivated products can be used directly, but also as a color coated substrate.

(5) to improve the fingerprint resistance of the product. After adding silica, the role of silica gel after the passivation of the product surface passivation film is more uniform, forming a very light very uniform light yellow, even if the amount of fingerprint adsorption is not easy to be perceived, so in general In the case of visual inspection, the fingerprint resistance of the product is improved.

(6) silica and phosphoric acid play a complementary role. The role of silica and phosphoric acid should be said to be the opposite, silica is polar, phosphoric acid is non-polar, phosphoric acid is a reactive type of additives, silica is attached to the additive. But the two are not mutually exclusive, will not weaken the other side of the role, but learn from each other. The combined effect of the product to the appearance, corrosion resistance, coating are at a better level, one of the two are better than the use of both.

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