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Liquid for chemical conversion treatment of metallic material and treatment method Invention relates to a liquid for depositing zinc phosphate coating on a metallic material by chemical conversion treatment, which is an aqueous solution with pH 3.6-4.4, containing 500-4000 ppm phosphate ions and 300-12000 ppm zinc ions. For this solution, the coefficient K, calculated based on concentration of phosphate ions: P (ppm), concentration of zinc ions: Z (ppm) and pH: X according to the formula: K=10X×P2×Z3/1018, is in the range from 1 to 50. |
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Bonding paint layer with polyvinyl amines in polymer-containing aqueous acidic anticorrosion media Agent contains water and fluorine-containing complex titanium and/or zirconium ions, an anticorrosion pigment, an organic polymer or copolymer which is water-soluble or water-dispersible, which as such in an aqueous solution in concentration of 50 wt % has pH ranging from 1 to 3. The agent also contains a polyvinyl amine with molecular weight greater than 100000 g/mol but not greater than 1000000 g/mol, the degree of acylation of the polyvinyl amines being not less than 80%. |
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Zirconium- and titanium-bearing phosphating solution for passivation of metal composite surfaces Water composition contains 5-50 g/l of phosphate ions, 0.3-3 g/l of zinc (II) ions, 1-200 ppm chosen from water-soluble zirconium and titanium compounds, in terms of elementary zirconium and titanium; at that, one or several water-soluble compounds of zirconium and free fluoride is contained in quantity of 1-400 ppm, which is measured with an electrode sensitive to fluoride. In corrosion-protection conversion treatment method of metal surfaces, which, in addition to steel and/or zinc-plated steel and/or alloyed zinc-plated steel surfaces, also contain aluminium surfaces, cleaned and degreased metal surfaces are brought into contact with water composition. |
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Thermally cured corrosion-resistant agent not containing chrome Agent with pH of 1 to 3 is intended to be applied as primary coating on metal substrates and contains water, as well as a) ions of fluorine complexes of titanium and/or zirconium, b) at least one corrosion-protective pigment, c) at least one water-soluble or water-dispersed polymer in the above pH range, which has pH 1-3 in water solution with concentration of 50 wt %. At that, c) includes i) links at least of two different ethylenically unsaturated monomers chosen from the group including acrylic acid, methacrylic acid, composite esters of acrylic acid and composite esters of methacrylic acid; at that, at least one monomer is chosen from the group including composite esters of acrylic acid and composite esters of methacrylic acid, and ii) 0.5 to 4.0 mol % of monomeric links with groups of phosphoric acid or ester of phosphoric acid. Application method of coating on metal strip involves application of the above agent of such thickness so that a coating with thickness of 0.5 to 10.0 mcm is formed as a result of its curing performed by heating of metal strip to the temperature of not more than 150°C during not more than 60 seconds. |
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Solution of phosphatisation with hydrogen peroxide and chelate forming carbonic acids Acid water solution for phosphatisation contains from 0.2 to 3 g/l of ions of bivalent zinc, from 3 to 50 g/l of ions of phosphate in terms of PO3- 4, from 15 to 50 mg/l of hydrogen peroxide or equivalent amount of substance removing hydrogen peroxide, from 0.5 to 1.0 g/l of one or several aliphatic chelate forming carbonic acids containing from 2 to 7 of carbon atoms with maximal one point of contents of free acid. |
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Metal surface is treated with an aqueous composition containing a) at least one compound a), selected from silanes, silanols, siloxanes and polysiloxanes, where content of silane/silanol/siloxane/polysiloxane in the composition is between 0.005 and 80 g/l, based on the corresponding silanols, b) at least one compound b), containing titanium, hafnium, zirconium, aluminium and/or boron, from which at least one is a complex fluoride, where the composition contains the compound b) in amount of 0.1-5 g/l, based on the sum of the corresponding metals, c) at least one type of cations selected from cations of metals of subgroups 1-3 and 5-8, including lanthanides, as well as group II elements and/or at least one corresponding compound c), where content of cations and/or corresponding compounds c) in the composition is between 0.01 and 6 g/l, at least one substance d) selected from d1) silicon-free compounds, having at least one amine group, one urea group and/or one ureide group, d4) phosphorus-containing compounds, anions of at least one phosphate and/or anions of at east one phosphonate, and e) water, where the aqueous composition is free from organic polymers. |
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Procedure consists in coating metal surface with composition containing a) at least one compound a) chosen from silane, silanol, siloxane and polysiloxane at contents of silane/ silanol/ siloxane/polysiloxane from 0.02 to 1 g/l in terms of base of corresponding silanol and b) at least two compounds b) chosen from compounds containing titanium, hafnium, zirconium, aluminium or/and boron at contents of compounds b) from 0.1 to 15 g/l in terms of sum of corresponding metals and at least two complex fluorides chosen from complex fluorides of aluminium, boron, titanium, hafnium and zirconium, and also at least one kind of cations chosen from cations of metals of 1-3 and 5-8 subgroups including lanthanides, and also of the 2-nd basic group of periodic table of the elements or/and at least one corresponding compound c) at their contents from 0.01 to 6 g/l, d) at least one organic compound chosen from monomers, oligomers, polymers, copolymers and bloc-copolymers, also weight ratio of compounds a) to organic compounds d) in terms of additive of solid substance in the composition is from 1:0.05 to 1:12 depending on amount of added organic compound d) or/and e) at least one substance influencing pH value and f) water. |
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Chromium-free passivation of steel Invention refers to application of coating on metal surface. The procedure for application of conversion or passivated coating on surface of galvanised steel and steel galvanised by hot immersion consists in interaction of said steel with a water treating composition containing film-forming latex polymer including acrylate resin, fluorine-containing acid, phosphorus acid and non-ionogenic polymer surface active substance containing block copolymer of poly-oxy-ethylene/oxy-propylene. Composition for forming conversion or passivated coating contains from 0.01 to 50 wt % of film-forming latex polymer and from 0.01 to 40 wt % H3PO4, from 0.01 to 30 wt % of fluorine containing acid, from 0.01 to 20 wt % of poly-oxy-ethylene/oxy-propylene block copolymer, water - the rest, wherein the said composition equals to 100 wt %. |
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Metal material with treated surface without using chromate Invention relates to metal material with treated surface free from chrome. Metal material has the surface to which there applied and dried is water-based matter so that composite coating is obtained. Water-based matter includes silica-containing organic compound (W) obtained by mixing silaned binding substance (A) containing one amine group in molecule/and silaned binding substance (B) containing one glycidyl group in molecule, at weight ratio of solid matters [(A)/(B)] 0.5- 1.7, and the molecule of which has at least two functional groups (a) of the formula -SiR1 R2 R3, in which R1, R2 and R3 represent alkoxyl group or hydroxyl group; at least one represents alkoxyl group and one or more at least of the same type of hydrophilic functional groups (b) chosen from hydroxyl group which is different from the group, which can be included in functional group (a)and amine groups with molecular-weight average of 1000-10000, at least one fluor compound (X) chosen from fluorotitanium acid or fluorozirconium acid, phosphoric acid (Y), and vanadium compound (Z). Weight ratio of solid matters [(X)/(W)] of the coating is 0.02 - 0.07, [(Y)/(W)] is 0.03- 0.12, [(Z)/(W)] is 0.05- 0.17, and [(Z)/(X)] is 1.3- 6.0. |
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Titanium alloy surface phosphatization method Invention relates to chemical treatment of titanium alloy surfaces and can be used in aircraft, spatial, and automotive industries, in ship building and other industrial fields. Method comprises degreasing, water rinsing, and phosphatization of titanium alloy surface with composition containing, g/L: PO4 -3 4.0-75.0, Zn+2 3.0-16.0, SO4 -2 2.0-7.0, NO3 -1 41.0-206.0, F-1 1.0-3.5, (C4H4O6)-2 1.8-9.0, and ultrafine polytetrafluoroethylene 800-1000. |
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Method for phosphatatizing of rusty iron-containing surfaces Phosphatatizing of rusty iron-containing surfaces before applying lacquer coatings involves formulation containing 5-9% of salt "Majef", 0.1·10-2-0.5·10-2 % of compound having following formula: , and distilled water to 100%. |
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Method of a titanium alloy surface phosphatization The invention is pertaining to the methods of chemical treatment of titanium alloys surfaces, in particular, to the methods of treatment of titanium alloys surfaces for improvement of their adhesiveness for lacquer coatings (LC) and may be used in various industries, including aircraft, space, motor-car industry, shipbuilding, construction and architecture, etc. where titanium alloys with decorative coloring are applied. The method provides for degreasing, water flushing, phosphatization of a titanium alloy surface using treatment with a water solution containing ions of zinc, ions of phosphate, ions of nitrate, a repeated water flushing and drying. At that before the phosphatization a titanium alloy surface is treated with an oxidation solution on the basis of a mixture of nitrogen and etching acids or magnesium oxide. The solution for phosphatization is additionally introduced with ions of sulfate, ions of fluorine and ions of tartrate at following ratio of components, g/l: PO4 -3 4.0-75.0, Zn+2 3.0-16.0, SO4 -2 2.07.0, NO3 -1 41.0-206.0, F-1 1.0-3.5, (C4H4O6)-2 1.8-9.0. The technical result is an increased adhesive capability of a titanium alloy surface for application of the lacquer coatings without hydrogenation of the surface. |
Another patent 2528666.