SU836217A1 - Solution for zinc passivating - Google Patents
Solution for zinc passivating Download PDFInfo
- Publication number
- SU836217A1 SU836217A1 SU762362045A SU2362045A SU836217A1 SU 836217 A1 SU836217 A1 SU 836217A1 SU 762362045 A SU762362045 A SU 762362045A SU 2362045 A SU2362045 A SU 2362045A SU 836217 A1 SU836217 A1 SU 836217A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- solution
- zinc
- acid
- pipes
- treated
- Prior art date
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Description
(54) РАСТВОР ДЛЯ ПАССИВАЦИИ ЦИНКА(54) ZINC PASSIVATION SOLUTION
1one
Изобретение относитс к химической обработке металлических изделий, в частности к растворам дл пассивации цинка и цинковых покрытий.The invention relates to the chemical treatment of metal products, in particular, solutions for the passivation of zinc and zinc coatings.
Известен раствор дл пассивации цинка и цинковых покрытий, содержа1ЦИЙ серную и азотную кислоты и хромовый ангидрид 1.A known solution for the passivation of zinc and zinc coatings, containing sulfuric and nitric acids and chromic anhydride 1.
Недостатком известного раствора вл етс его высока токсичность и токсичность сточных (промывных) вод, обусловленна присутствием хромового ангидрида.The disadvantage of this solution is its high toxicity and the toxicity of waste (wash) water, due to the presence of chromic anhydride.
Цель изобретени - снижение токсичности раствора при сохранении высокого качества пассивации.The purpose of the invention is to reduce the toxicity of the solution while maintaining the high quality of passivation.
Поставленна цель достигаетс тем что в известный раствор, включающий серную и азотную кислоты и воду, дополнительно ввод т оС-нитроэо- fiнафтол или краситель кислотный оранжевый при следующем соотношении компонентов , вес,%:The goal is achieved by addition of oC-nitro-o-naphthol or acid orange to the known solution, including sulfuric and nitric acids and water, in the following ratio of components, weight,%:
Серна кислота 2,0-3,0Sulfuric acid 2.0-3.0
Азотна кислота 5,0-6,0Nitric acid 5.0-6.0
с1-нитрозо- 1 -нафтол или краситель кислотный орайжевыйC1-nitroso-1-naphthol or dye Acid Origen
0,5-1,5 0.5-1.5
Вода ОстальноеWater Rest
Рабоча температура 20С. Врем обработки 7-9 СоWorking temperature 20C. Processing time 7-9 Co
П р и м ер1. В растворе состава , вес.%:P r and m er1. In solution composition, wt.%:
3,03.0
Серна кислотаSulfuric acid
5,5 5.5
Азотна кислота 1,0 Nitric acid 1.0
о(.нитрозо-|3-нафтол Остсшьноеabout (.nitro- | 3-naphthol Osshshshnoe
00
ВодаWater
были обработаны стальные трубы, имеющие цинковое покрытие. Рабоча температура 20С. Врем обработки 7 с. Трубы после обработки имеют чистую блест щую поверхность, блеск 60%, Zinc coated steel pipes were treated. Working temperature 20C. Processing time 7 s. Pipes after treatment have a clean glossy surface, gloss 60%,
5 съем цинка при обработке 1,68 мкм. Качество пассивации По блеску и коррозионной стойкоститакое же, как и в известном растворе.5 eat zinc processing 1.68 microns. The quality of passivation By gloss and corrosion resistance is the same as in the known solution.
Пример2. В растворе соста0 ва, вес.%: Example2. In a solution of composition, wt.%:
Серна кислота 2,6 Азотна кислота 4,0Sulfuric acid 2.6 Nitric acid 4.0
Краситель кислотный Acid Dye
0,5-1,5 оранжевый Остальное0.5-1.5 orange Else
ВодаWater
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762362045A SU836217A1 (en) | 1976-05-17 | 1976-05-17 | Solution for zinc passivating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762362045A SU836217A1 (en) | 1976-05-17 | 1976-05-17 | Solution for zinc passivating |
Publications (1)
Publication Number | Publication Date |
---|---|
SU836217A1 true SU836217A1 (en) | 1981-06-07 |
Family
ID=20661996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762362045A SU836217A1 (en) | 1976-05-17 | 1976-05-17 | Solution for zinc passivating |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU836217A1 (en) |
-
1976
- 1976-05-17 SU SU762362045A patent/SU836217A1/en active
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