SU139449A1 - Electrolytic coating of metals, for example iron and steel, with copper - Google Patents

Electrolytic coating of metals, for example iron and steel, with copper

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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
Application number
SU689098A
Other languages
Russian (ru)
Inventor
Э.А. Озола
Б.А. Пурин
Original Assignee
Э.А. Озола
Б.А. Пурин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Э.А. Озола, Б.А. Пурин filed Critical Э.А. Озола
Priority to SU689098A priority Critical patent/SU139449A1/en
Application granted granted Critical
Publication of SU139449A1 publication Critical patent/SU139449A1/en

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  • 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.

SU689098A 1960-12-19 1960-12-19 Electrolytic coating of metals, for example iron and steel, with copper SU139449A1 (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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