SU1721123A1 - Method for preparation of metallic articles surface before applying of paint and varnish coating - Google Patents
Method for preparation of metallic articles surface before applying of paint and varnish coating Download PDFInfo
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- SU1721123A1 SU1721123A1 SU874305987A SU4305987A SU1721123A1 SU 1721123 A1 SU1721123 A1 SU 1721123A1 SU 874305987 A SU874305987 A SU 874305987A SU 4305987 A SU4305987 A SU 4305987A SU 1721123 A1 SU1721123 A1 SU 1721123A1
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- USSR - Soviet Union
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- heat treatment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/27—Acids
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Изобретение относитс к защите металлов от коррозии, в частности к подготовке поверхности металла перед нанесением лакокрасочных покрытий путем химической обработки в водных пленкообразующих растворах, и может быть использовано в машиностроении. Целью изобретени вл етс улучшение качества и повышение долговечности лакокрасочного покрыти . Способ включает обработку в пленкообразующем растворе, содержащем, мас.%: хромовый ангидрид или его соли кали , натри или их смесь 4 -8.5; окись цинка 3,0-4,5; нтарна кислота 0,5 - 9,0;вода78,0 - 92,5; термообработка в три стадии - при 90-110° С в течение 3-4 мин; затем при 230-240° С в течение 3-4 мин и в течение 0,1-2,0 мин при 260-280° С с последующим охлаждением до 55-70° С.. Улучшение качества и повышение долговечности лакокрасочного покрыти . достигаетс термообработкой, осуществл емой в три стадии. Металлические образцы последовательно выдерживают при 90-110° С в течение 3-4 мин, затем при 230-240° С в течение 3-4 мин, после чего при 260-280° С в течение 0,1-2,0 мин и охлаждают до температуры 55-70° С. 5 табл. сл сThe invention relates to the protection of metals from corrosion, in particular to the preparation of the metal surface before applying paint coatings by chemical treatment in aqueous film-forming solutions, and can be used in mechanical engineering. The aim of the invention is to improve the quality and increase the durability of the paint coating. The method includes processing in a film-forming solution containing, in wt.%: Chromic anhydride or its potassium, sodium salts or their mixture of 4-8.5; zinc oxide 3.0-4.5; succinic acid 0.5 - 9.0; water 78.0 - 92.5; heat treatment in three stages - at 90-110 ° C; C for 3-4 min; then at 230-240 ° C. C for 3-4 minutes and for 0.1-2.0 minutes at 260-280 ° C. C followed by cooling to 55-70 ° C. C .. Improving the quality and durability of the paintwork. is achieved by heat treatment carried out in three stages. Metal samples are successively maintained at 90-110 ° C. C for 3-4 minutes, then at 230-240 ° C. C for 3-4 minutes, then at 260-280 ° C. C for 0.1-2.0 minutes and cooled to a temperature of 55-70 ° C. C. 5 tab. cl
Description
Изобретение относитс к защите металлов от коррозии, в частности к подготовке поверхности металла перед нанесением лакокрасочных покрытий путем химической обработки в водных пленкообразующих, растворах, и может быть использовано в машиностроении.The invention relates to the protection of metals against corrosion, in particular to the preparation of the metal surface before applying paint coatings by chemical treatment in aqueous film-forming solutions, and can be used in mechanical engineering.
Цель изобретени -улучшение качества и повышение долговечности лакокрасочного покрыти .The purpose of the invention is to improve the quality and increase the durability of the paintwork.
Пример. Дл испытани использовали пластины из стали марки Ст 10 размером 50x100x1,5 мм. Пластины со следами ржавчины предварительно травили в растворе сол ной кислоты, разбавленной 1:1, в течение 10-15 мин и промывали холодной водой . Подготовку образцов перед покрытием проводили следующим образом.Example. For testing, St 10 steel plates with dimensions of 50 x 100 x 1.5 mm were used. Plates with traces of rust were previously etched in a 1: 1 solution of hydrochloric acid for 10–15 min and washed with cold water. Sample preparation before coating was carried out as follows.
Химическое обезжиривание проводили в щелочном растворе, содержащем, г/л; Тринатрийфосфат30-70Chemical degreasing was carried out in an alkaline solution containing, g / l; Trisodium Phosphate30-70
Кальцинированна сода 15-40 Едкий натр5-15Soda Ash 15-40 Caustic Soda 5-15
Жидкое стекло10-20Liquid glass10-20
Синтанол ДС-10 .3-5Sintanol DS-10 .3-5
при 60-80° С. Обезжиривание проводили в течение 3-10 мин. затем промывали водой при 40-50° С в течение 2-3 мин и сушили воздухом 55-70° С в течение 3-5 мин.at 60-80 ° C. Degreasing was carried out for 3-10 minutes. then washed with water at 40–50 ° C for 2–3 min and dried with air at 55–70 ° C for 3–5 min.
Сухие пластины обрабатывали в пленкообразующем растворе, содержащем, мас.%:Dry plates were processed in a film-forming solution containing, in wt.%:
4 КЭ4 EC
hO ЫhO s
Хромовый ангидрид его соли кали , натри или f их смесь4-8,5Chromic anhydride of its potassium, sodium or f salt; mixture 4-8.5
Окись цинка3,0-4,5Zinc Oxide3.0-4.5
Янтарна кислота0,5-9,0Succinic acid0,5-9,0
Вода78,0-92,5Voda78,0-92,5
рН раствора 1,8-5,0, оптимально 3,0-4,0. Корректировку проводили окисью цинка. Образцы вынимали из раствора со скоростью 7-16 см/мин. Затем пластины термо- обрабатывали в режимах предложенного . способа, затем на пластины наносили распылением лакокрасочное покрытие и сушили в печи.The pH of the solution is 1.8-5.0, optimally 3.0-4.0. The adjustment was carried out with zinc oxide. Samples were removed from the solution at a rate of 7–16 cm / min. Then the plates were thermo-treated in the modes proposed. method, then the plates were sprayed paintwork and dried in the oven.
Вли ние условий термообработки на качество лакокрасочного покрыти приведено в табл. 1-3.The effect of heat treatment conditions on the quality of the paint coating is given in table. 1-3.
О качестве покрыти судили по величине адгезии в соответствии с ГОСТ 15-140-78 по четырехбалльной системе методом решет- чатых надрезов скальпелем исходных образцов и после постановки в дистиллированную воду в течение 10 сут. Испытани адгезии проводили через 7 сут после окраски с целью завершени полиме- ризации в лакокрасочном покрытии. The quality of the coating was judged by the adhesion value in accordance with GOST 15-140-78 using a four-point system by the method of lattice incisions with a scalpel of the initial samples and after setting into distilled water for 10 days. Adhesion tests were carried out 7 days after dyeing in order to complete the polymerization in the paint coating.
Результаты испытаний приведены в табл. 4 и5(табл. 4 -дл прототипа,табл. дл предлагаемого способа).The test results are shown in Table. 4 and 5 (Table 4 of the prototype, Table for the proposed method).
При сравнении данных табл, 4 и 5 видно, что адгези к хлорвиниловому и кремнийор- ганическому покрыти м у образцов, подготовленных по предлагаемому способу, выше (1-2 балла) и стабильнее после ТО сут нахождени в воде, чем у образцов, подготовленных по способу, описанному в прототипе (3-4 балла).When comparing the data of Tables 4 and 5, it can be seen that the adhesion to the vinyl chloride and silicon organic coatings on the samples prepared by the proposed method is higher (1-2 points) and more stable after THAT day in water than on samples prepared by the method described in the prototype (3-4 points).
Технико-экономическими преимуществами предлагаемого способа вл ютс улуч- шение качества и повышение долговечности лакокрасочного покрыти .The technical and economic advantages of the proposed method are to improve the quality and increase the durability of the paintwork.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874305987A SU1721123A1 (en) | 1987-09-15 | 1987-09-15 | Method for preparation of metallic articles surface before applying of paint and varnish coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874305987A SU1721123A1 (en) | 1987-09-15 | 1987-09-15 | Method for preparation of metallic articles surface before applying of paint and varnish coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1721123A1 true SU1721123A1 (en) | 1992-03-23 |
Family
ID=21327740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874305987A SU1721123A1 (en) | 1987-09-15 | 1987-09-15 | Method for preparation of metallic articles surface before applying of paint and varnish coating |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1721123A1 (en) |
-
1987
- 1987-09-15 SU SU874305987A patent/SU1721123A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент US № 3519501, кл. С 23 F 7/26, 1970. Патент US №3568311, кл. С 23 F 7/26, 1971. * |
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