SU139449A1 - Electrolytic coating of metals, for example iron and steel, with copper - Google Patents
Electrolytic coating of metals, for example iron and steel, with copperInfo
- Publication number
- SU139449A1 SU139449A1 SU689098A SU689098A SU139449A1 SU 139449 A1 SU139449 A1 SU 139449A1 SU 689098 A SU689098 A SU 689098A SU 689098 A SU689098 A SU 689098A SU 139449 A1 SU139449 A1 SU 139449A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- copper
- steel
- metals
- electrolytic coating
- example iron
- Prior art date
Links
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Description
Примен емые взамен довитых цианистых электролитов меднени кислые нецианистые электролиты, например, щавелевокислый, аммиачный , пирофосфатный и др. не получили широкого распространени в силу своих недостатков. Так, например, пирофосфатный электролит дает удовлетворительного качества покрыти только в узком интервале плотности тока (0,3-0,5 а1дм), а На профилированных детал х покрыти недостаточно хорошо сцепл ютс с железной основой, особенно при температуре выше 30°.Acidic non-cyanic electrolytes used instead of copper nitride electrolytes, such as oxalic acid, ammonia, pyrophosphate, etc., have not been widely used due to their shortcomings. For example, the pyrophosphate electrolyte gives a satisfactory quality of the coating only in a narrow range of current density (0.3-0.5 a1 dm), and On the profiled parts the coating does not adhere well to the iron base, especially at temperatures above 30 °.
Предложенный способ электролитического покрыти допускает применение тока относительно высокой плотности, имеет рассеиваюдую способность, равную таковой дл цианистых 1электролитов, и позвол ет осаждать блест щие медные покрыти , хорошо сцепл ющиес с железной основой. Достигаетс это тем, что в исходный электролит в качестве добавок ввод т триоксиглутаровую кислоту и селенит натри .The proposed electrolytic coating method permits the use of a relatively high density current, has a scattering capacity equal to that for cyanide electrolytes, and allows the deposition of shiny copper coatings that adhere well to the iron base. This is achieved by introducing trioxyglutaric acid and sodium selenite as additives into the initial electrolyte.
При изготовлении предлагаемого электролита в раствор пирофосфата кали (350 г/л) при перемешивании и подогреве ввод т раствор сульфата меди (90 г/л), затем добавл ют 7 г/л триоксиглутаровой кислоты и 0,002 а/л селенита натри , который вл етс блесткообразующей добавкой . Процесс осаждени меди ведетс При оптимальном значении рН равном 8,5, температуре 30-50° и плотности тока 1,5-3,0 afd.u. Толщина медных покрытий равна 30-40 мк.In the manufacture of the proposed electrolyte, a solution of copper sulfate (90 g / l) is added to a solution of potassium pyrophosphate (350 g / l) with stirring and heating, then 7 g / l of trioxyglutaric acid and 0.002 a / l sodium selenite, which is Sparkling additive. Copper deposition is carried out at an optimum pH value of 8.5, a temperature of 30-50 ° and a current density of 1.5-3.0 afd.u. The thickness of the copper coating is 30-40 microns.
Предмет изобретени Subject invention
Способ электролитического покрыти металлов, например железа и стали, медью с использованием нецианистого электролита, содержащего пирофосфорнокислый калий, отличающийс тем, чго, с целью получени плотных блест щих поверхностей, в исходный электролит в качестве добавок ввод т до 7 г/л триоксиглутаровой кислоты и 0,002 О 004 г/л селенита натри .A method of electrolytically coating metals, such as iron and steel, with copper using a non-cyanide electrolyte containing potassium pyrophosphate, characterized in that, in order to obtain dense shiny surfaces, up to 7 g / l of trioxyglutaric acid and 0.002 are added to the starting electrolyte as additives. About 004 g / l sodium selenite.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU689098A SU139449A1 (en) | 1960-12-19 | 1960-12-19 | Electrolytic coating of metals, for example iron and steel, with copper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU689098A SU139449A1 (en) | 1960-12-19 | 1960-12-19 | Electrolytic coating of metals, for example iron and steel, with copper |
Publications (1)
Publication Number | Publication Date |
---|---|
SU139449A1 true SU139449A1 (en) | 1961-11-30 |
Family
ID=48295534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU689098A SU139449A1 (en) | 1960-12-19 | 1960-12-19 | Electrolytic coating of metals, for example iron and steel, with copper |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU139449A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540473A (en) * | 1983-11-22 | 1985-09-10 | International Business Machines Corporation | Copper plating bath having increased plating rate, and method |
-
1960
- 1960-12-19 SU SU689098A patent/SU139449A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540473A (en) * | 1983-11-22 | 1985-09-10 | International Business Machines Corporation | Copper plating bath having increased plating rate, and method |
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