SU109528A1 - Etchant for copper and copper-based alloys - Google Patents

Etchant for copper and copper-based alloys

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Publication number
SU109528A1
SU109528A1 SU581755A SU581755A SU109528A1 SU 109528 A1 SU109528 A1 SU 109528A1 SU 581755 A SU581755 A SU 581755A SU 581755 A SU581755 A SU 581755A SU 109528 A1 SU109528 A1 SU 109528A1
Authority
SU
USSR - Soviet Union
Prior art keywords
copper
etchant
based alloys
solution
ammonia
Prior art date
Application number
SU581755A
Other languages
Russian (ru)
Inventor
Г.И. Панкова
Original Assignee
Г.И. Панкова
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 Г.И. Панкова filed Critical Г.И. Панкова
Priority to SU581755A priority Critical patent/SU109528A1/en
Application granted granted Critical
Publication of SU109528A1 publication Critical patent/SU109528A1/en

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Description

Известны травители, примен емые j;jiH вы влени  микроструктуры сплавов на медной основе, как-то: аммиак и перекись водорода, раствор персульфата аммони , хлорное железо в сол ной кислоте, аммиачный раствор сернокислой меди и т. д.The etchants used are j; jiH for detecting the microstructure of copper-based alloys, such as ammonia and hydrogen peroxide, ammonium persulfate solution, ferric chloride in hydrochloric acid, ammonia solution of copper sulfate, etc.

Но указанные травители, особенно при травлении свинцовых латуней , вызывают нзлиншее окисление травленой поверхности, что требует повторной полировки и трав; ей и .But these etchants, especially when etching lead brass, cause a weak oxidation of the etched surface, which requires re-polishing and herbs; her and

Предметом описываемого изобретени    5л етс  новый травитель, который состоит из смеси раетвора уг.лекислой меди в аммиаке и раствора персульфата аммони , который не имеет указаниых недостатков .The subject of the described invention is a new picker, which consists of a mixture of a solution of carbonic acid copper in ammonia and a solution of ammonium persulfate, which does not have the indicated disadvantages.

Травптель, согласно изобретению, Г1ри1от(тл етс  следую1и,им образом .Travtel, according to the invention, is G1 (1), in the following manner.

В свежеприготовленную углекислую соль меди в виде осадка добавл ют аммиак до полного растворени  осадка. Углекислую соль меди приготовл ют путем обработки насыщенного раствора медного купороса насыщенным раствором соды; полученный осадок отфильтровывают .Ammonia is added as a precipitate to the freshly prepared carbonate of copper in the precipitate until the precipitate has completely dissolved. The carbonate of copper is prepared by treating a saturated solution of copper sulfate with a saturated solution of soda; the precipitate is filtered off.

К произвольно вз тому объему раствора углекислой меди в аммиаке добавл ют равный же объем 7 й-ного раствора персульфата ам.мони .An equal volume of the 7th ammonium persulfate solution is added to an arbitrarily charged volume of a solution of copper carbonate in ammonia.

Растворы смешиваютс  лишь перед травлением. При травлении шлифов указаииыд составом в течение 10-15 секунд вы вл етс  четка  микроструктура всех сплавов на модной ос}1ове.The solutions are mixed only before etching. When etching thin sections, a clear microstructure of all alloys on a fashionable base line is revealed within 10–15 seconds.

Применение травлнтел , согласно изобретению, дает по сравнению с известиы.ми сейчас травител мн более четкую микроструктуру без окис.1еик  И1лифа.The use of travntel, according to the invention, provides a clearer microstructure without oxides. 1Il Ilyph compared to lime.

Предмет изобретени Subject invention

Травитель дл  меди и сплавов на мел.ной основе, отличают и и с   тем, что. с целью получени  более четко м;1кроструктуры сплавов бен .1ени , травлеиие провод т в с.мс-си равных объемов раствора углекислой соли меди в аммиаке и 7 о-но1о раствора персульфата аммои )  в течение 10-15 секунд.An etcher for copper and alloys on a fine basis is also distinguished by the fact that. in order to obtain more clearly m; 1 the structure of the ben.

SU581755A 1957-08-06 1957-08-06 Etchant for copper and copper-based alloys SU109528A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU581755A SU109528A1 (en) 1957-08-06 1957-08-06 Etchant for copper and copper-based alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU581755A SU109528A1 (en) 1957-08-06 1957-08-06 Etchant for copper and copper-based alloys

Publications (1)

Publication Number Publication Date
SU109528A1 true SU109528A1 (en) 1957-11-30

Family

ID=48382549

Family Applications (1)

Application Number Title Priority Date Filing Date
SU581755A SU109528A1 (en) 1957-08-06 1957-08-06 Etchant for copper and copper-based alloys

Country Status (1)

Country Link
SU (1) SU109528A1 (en)

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