SU533681A1 - Aqueous solution for cathodic chromate - Google Patents
Aqueous solution for cathodic chromateInfo
- Publication number
- SU533681A1 SU533681A1 SU2085803A SU2085803A SU533681A1 SU 533681 A1 SU533681 A1 SU 533681A1 SU 2085803 A SU2085803 A SU 2085803A SU 2085803 A SU2085803 A SU 2085803A SU 533681 A1 SU533681 A1 SU 533681A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chromate
- cathodic
- aqueous solution
- cadmium
- corrosion resistance
- Prior art date
Links
Landscapes
- Chemical Treatment Of Metals (AREA)
Description
которой Е водопроводной воде достигала 30 суток по.сравнению с несколькими сутками коррозионной стойкости дл пленок, полученных из известного состава электролита.which E tap water reached 30 days compared to several days of corrosion resistance for films obtained from the known composition of the electrolyte.
Пример 2. Хроматную пленку наносили методом натирани на образец из стали ХНВА в электролите, содержащем 30 г/л хромата кадми , воду до 1 л и гидроксид кадми до насыщени , при комнатной температуре и плотности тока 15 а/дм. В результате на поверхности образца была получена хроматна пленка, по коррозионной стойкости не уступающа пленке примера 1.Example 2. A chromate film was applied by rubbing a sample of XNBA steel in an electrolyte containing 30 g / l of cadmium chromate, water to 1 l and cadmium hydroxide to saturation at room temperature and a current density of 15 a / dm. As a result, a chromate film was obtained on the sample surface, which is not inferior in corrosion resistance to that of Example 1.
Образующиес хроматные пленки состо т, в основном, из труднорастворимого оксихромата кадми Cd2(OH)2CrO4, образование которого возможно при высокой концентрации ионов ОН, достигаемой за счет присутстви в растворе избытка гидроксида кадми .The resulting chromate films consist mainly of the sparingly soluble cadmium oxychromate Cd2 (OH) 2CrO4, which can be formed with a high concentration of OH ions, achieved due to the presence of excess cadmium hydroxide in the solution.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2085803A SU533681A1 (en) | 1974-12-19 | 1974-12-19 | Aqueous solution for cathodic chromate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2085803A SU533681A1 (en) | 1974-12-19 | 1974-12-19 | Aqueous solution for cathodic chromate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU533681A1 true SU533681A1 (en) | 1976-10-30 |
Family
ID=20604047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2085803A SU533681A1 (en) | 1974-12-19 | 1974-12-19 | Aqueous solution for cathodic chromate |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU533681A1 (en) |
-
1974
- 1974-12-19 SU SU2085803A patent/SU533681A1/en active
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