SU800240A1 - Solution for cadmium parkerizing - Google Patents
Solution for cadmium parkerizing Download PDFInfo
- Publication number
- SU800240A1 SU800240A1 SU772462817A SU2462817A SU800240A1 SU 800240 A1 SU800240 A1 SU 800240A1 SU 772462817 A SU772462817 A SU 772462817A SU 2462817 A SU2462817 A SU 2462817A SU 800240 A1 SU800240 A1 SU 800240A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- solution
- cadmium
- phosphating
- parkerizing
- zinc
- Prior art date
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Classifications
-
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/17—Orthophosphates containing zinc cations containing also organic 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)
- Chemical Treatment Of Metals (AREA)
Description
(54) РАСТВОР ЙЛЯ ФОСФАТИРОВАНИЯ КАДМИЯ(54) Solution of cadmium phosphate
II
Изобретение относитс к получени защитных покрытий, а частности фосфатных на кадмиевой поверхности.The invention relates to the production of protective coatings, in particular phosphate coatings on a cadmium surface.
Дл повышени надежности кадмиевых покрыти.й при эксплуатации в жеских коррозионных услови х их дополнительно фосфатируют, а при эксплуатации в особо жестких коррозионных услови х (тропический климат) подвегают окраске.To increase the reliability of cadmium coatings, they are additionally phosphated when used in harsh corrosive conditions, and when used in particularly harsh corrosive conditions (tropical climate), they are colored.
В то же врем известно, что кадмий относитс к металлам, обладающим плохой адгезией к лакокрасочным покрыти м. Фосфатирование вл етс в св зи с этим эффективным методом подготовки поверхности к окраске , так как обеспечивает увеличение коррозионной стойкости и адгезии лакокрасочного покрыти .At the same time, it is known that cadmium belongs to metals that have poor adhesion to paintwork. Phosphating is therefore an effective method of preparing a surface for painting, as it increases the corrosion resistance and paint adhesion.
Фосфатирование кадмированных деталей используетс в судостроительной промышленности и авиационном приборостроении дл дополнительной защиты от коррозии, а также как подслой под лакокрасочные покрыти .Phosphating of cadmium plated parts is used in the shipbuilding industry and aircraft instrumentation for additional protection against corrosion, as well as an underlayer for paintwork coatings.
Известен раствор дл фосфатировани металлов, содержащий фосфорную кислоту, соли цинка и фторис .тый натрий в качестве ускор ющей добавки. Дайный раствор обеспечиваеA known solution for phosphating metals containing phosphoric acid, zinc salts, and fluoride. Sodium as an accelerating additive. Daily solution provide
22
получение качественных пленок, обладающих высокой адгезией к лакокрасочным покрыти м. Длительность процесса Фосфатировани из этого раствора незначительна, 5-20 мин fl.obtaining high-quality films with high adhesion to paint coatings. The duration of the phosphating process from this solution is negligible, 5–20 min fl.
Недостатком данного раствора вл етс то, что он предусматривает использование фтористого натри в качестве ускор ющей добавки, котоo рый относитс к токсичным веществам,The disadvantage of this solution is that it provides for the use of sodium fluoride as an accelerating additive, which is a toxic substance,
Известно также использование и других ускор ющих добавок, например альдегида муравьиной кислоты 2.It is also known to use other accelerating additives, for example, formic aldehyde 2.
Однако данное вещество вл ет5 с недостаточно эффективной ускор ющей добавкой.However, this substance is 5 with an insufficiently effective accelerating additive.
Наиболее близким по составу к предложенному вл етс раствор дл Фосфатировани кадми , содержащий The closest in composition to the proposed is cadmium phosphate solution containing
0 фосфорную кислоту, окись цинка, азотнокислый цинк и фтористый натрий в качестве ускор ющей добавки f3 .0 phosphoric acid, zinc oxide, zinc nitrate and sodium fluoride as an accelerating additive f3.
Однако и в этом растворе в качестве ускор ющей добавки используетс However, in this solution as an accelerating additive is used
5 токсичное вещество - фтористый натркй .5 toxic substance - sodium fluoride.
Цель изобретени - снижение токсичности раствора.The purpose of the invention is to reduce the toxicity of the solution.
Цель достигаетс тем, что в ка0 честве ускор ющей добавки растворThe goal is achieved by the fact that, as an accelerating additive, the solution
содержит муравьинокислый натрий при следующем соотношении компонентов, г/л:contains sodium formate in the following ratio of components, g / l:
Фосфорна кислотаPhosphoric acid
(100%-на )4-100(100% on) 4-100
Окись цинка12-15Zinc Oxide 12-15
Лзотнонислый цинк 120-150Zinc-rich zinc 120-150
МуравьинокислыйFormic acid
натрий12-16.sodium 12-16.
Раствор приготавливают следующим образом.The solution is prepared as follows.
Расчетное количество окиси цинка , например 12 г, раствор ют при охлаждении в 26,5 мл (d 1,72) фосфор ной кислоты (40 г 100%-ной НзРО) с добавлением 100 мл воды. Отдельно в небольших порци х дистиллированной воды (л-2 50 мл) раствор ют 120 г азотнокислого цинка и 12 г муравьинокислого натри . Затем к раствору азотнокислого цинка приливают раствор окиси цинка в фосфорной кислоте . В полученный раствор постепенно при перемешивании, добавл ют раствор муравьииокислого натри . Общий объем доводитс до 1 л водой. Раствор пригоден к работе сразу после приготовлени .The calculated amount of zinc oxide, for example 12 g, is dissolved when cooled in 26.5 ml (d 1.72) of phosphoric acid (40 g of 100% HzRO) with the addition of 100 ml of water. Separately, 120 g of zinc nitrate and 12 g of sodium formate are dissolved in small portions of distilled water (L-2 50 ml). Then a solution of zinc oxide in phosphoric acid is added to the zinc nitrate solution. To the resulting solution is gradually added with a solution of formic sodium chloride with stirring. The total volume is adjusted to 1 l with water. The solution is suitable for use immediately after preparation.
Вес фосфатной пленки, г/м после Weight of phosphate film, g / m after
Продолжительность фосфатировани в растворе фосфатировани ,The duration of phosphating in the phosphating solution,
Результаты испытаний показывают, что преимущество предлагаемого раствора состоит не только в, ускор ющей добавки нетоксичности, но и в увели- чении скорости процесса.The test results show that the advantage of the proposed solution is not only in the accelerating additive non-toxicity, but also in increasing the speed of the process.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772462817A SU800240A1 (en) | 1977-03-05 | 1977-03-05 | Solution for cadmium parkerizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772462817A SU800240A1 (en) | 1977-03-05 | 1977-03-05 | Solution for cadmium parkerizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU800240A1 true SU800240A1 (en) | 1981-01-30 |
Family
ID=20699590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772462817A SU800240A1 (en) | 1977-03-05 | 1977-03-05 | Solution for cadmium parkerizing |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU800240A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154367A2 (en) * | 1984-03-09 | 1985-09-11 | Metallgesellschaft Ag | Process for phosphatizing metals |
| CN112095096A (en) * | 2020-08-25 | 2020-12-18 | 立邦涂料（重庆）化工有限公司 | Zinc-series low-slag phosphating agent and preparation method thereof |
-
1977
- 1977-03-05 SU SU772462817A patent/SU800240A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154367A2 (en) * | 1984-03-09 | 1985-09-11 | Metallgesellschaft Ag | Process for phosphatizing metals |
| US4637838A (en) * | 1984-03-09 | 1987-01-20 | Metallgesellschaft, A.G. | Process for phosphating metals |
| CN112095096A (en) * | 2020-08-25 | 2020-12-18 | 立邦涂料（重庆）化工有限公司 | Zinc-series low-slag phosphating agent and preparation method thereof |
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