SU1057576A1 - Solution for producing priming layer on surface of lead-plated steel - Google Patents

Abstract

THE SOLUTION FOR OBTAINING A GROUND LAYER ON A SURFACE TILE OF AN EXECUTED STEEL, containing the following: a separate color in the interior:. First of all, with the fact that, with a chain of Sashvka energy; h: Couples are due to the possibility of: The process of the warping room temperature, HE as a partner to the hotspot containing the servoe of the temperature of the harvested youth, as a team, he has 11 d 1,825) .11-13 Aerotvvspy procession pvvk35 - 46 (L

Description

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3d The invention relates to the preparation of a meta-preparation surface for a paint coating. It is known to use sulfuric acid solutions to obtain a protective film on the lined surface. However, coatings obtained from these solutions do not provide good adhesion of the paint layer to the substrate. The closest to the proposed technical essence and the achieved result is a solution of 2 au of obtaining a primer with (1o on the surface of leaded steel, containing zinc nitrate and, as a mine, phosphoric acid, and sulphate and sodium fluoride in the following ratio of components, g / l: Phosphoric acid 1OR% -na. (GOST 6552-58) 4О-48 Zinc nitrate shes tevivodny .. (GOST 5106-69) 280-700 Sulfur sulfate zinc sevodny (GOST 4174-1832-50 Sodium fluoride (GOST 4463g6b) 16 -28 The solution provides getting on the surface and leaded coating with good adhesion properties. The disadvantage of the known solution is that the process should be carried out at 50-60 ° C. The aim of the invention is to reduce energy costs due to the possibility of carrying out the process at room temperature. of obtaining a primer layer on the surface of a leaded step containing zinc acid and zinc nitrate and mineral acid, as a mineral acid contains sulfuric acid in the following ratio of components, g / l: gray per acid (d 1,825) 11-13 Zinc nitrate zinc 35-46 For the npHroTOBifeHiffl solution, to 45 f of zinc nitrate dissolved in 800 ml of distilled Boi No. i, add 6 ml of sulfuric acid (density (} 1.825), the solutions are carefully reused. (They are sold and distilled with distilled water to 1 l. The coating process from solution is carried out by immersing the product in it at room temperature. Example 1. Sulphate film From solution, g / l: Sulfuric acid (1,825) 13 Nitrate processed zinc 35 Water Remaining is applied on a halo of iron from 08KP J UM TU - 1-329-68ВГ1) 0.9 mm thick, size 150 7 Ohm at T -, f «5 min. Then successively put the primer GF-018 (TU-6-1О-I53-71) on amalm L-12 (TU-6-10-643-72), which is applied in two layers. The thickness of the image is 48 μm. The complex coating applied and sulcated in the leaded steel is characterized by adhesion 1 bupp after exposure, for 24, 48, 72 hours. Example p 2. Sulfate film from solution, g / l: Sulfuric acid (d 1,825) 11 Nitrate hexate zinc 45 Water Spilled applied on a plate of veneer-; O8KP steel (UMTU-1-329-68VG1) 0.9 mm thick, 150–70 mm in size with T 1 25 C mode, 5 min. Then successively aanos m primer GF-018 (TU-6-10N53-71) and the enamel ML-12 (TU-6 10-643-72) protective in two layers. The thickness of the resulting complex coating is 48 µM. The complex, a coating that is fine on sulphated leaded steel, is characterized by an adhesion of 1 point before and after exposure to water for 24, 48/72 h. Deviation from the indicated concentration range towards decreasing or increasing the concentration is 10% to 10 sulphate foam, providing adhesion of 2-g3 points. Example 3. Sulphate film obtained from solution, g / l: Sulfuric acid ((J 1,825) 9 Hexavalent nitrogen-saturated zinc5O WaterOther Comprehensive coating applied oa sulfated lead-free step, characterized by adhesion of 2-3 bapp before and after exposure to water for 24.48 hours and 3-4 points after exposure

Claims (1)

A SOLUTION FOR PRODUCING A PRIMER LAYER ON A SURFACE TI. LEADED STEEL containing nitric acid hexahydrate zinc and mine ?. ric acid, distinguishing with the fact that, with a chain for reducing energy consumption due to the possibility of carrying out the process at room temperature,. it as a mineral acid contains sulfuric acid in the following ratio of components, g / p: Sulfuric acid (d "1.825) * 11 - 13 Hex nitrate zinc 35-45 _Λ g ω □ ί Μ Μ E5 1 1057576