SU428043A1 - METHOD OF REMOVAL OF COATINGS - Google Patents
METHOD OF REMOVAL OF COATINGSInfo
- Publication number
- SU428043A1 SU428043A1 SU1749775A SU1749775A SU428043A1 SU 428043 A1 SU428043 A1 SU 428043A1 SU 1749775 A SU1749775 A SU 1749775A SU 1749775 A SU1749775 A SU 1749775A SU 428043 A1 SU428043 A1 SU 428043A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coatings
- removal
- solution
- cobalt
- nickel
- Prior art date
Links
Landscapes
- ing And Chemical Polishing (AREA)
Description
1one
Изобретеиие отно;сит|С к области сн ти металлических локрытий, в частности покрытий из никел и кобальта.The invention relates to the range of removal of metallic metal lockers, in particular, nickel and cobalt coatings.
Известен апособ сн ти локрытий из никел и кобальта лутем выдержки в растворе на основе гидроокиси аммони .The apotheocalypse of nickel and cobalt coatings is known by exposing them to a solution based on ammonium hydroxide.
Предложенный способ отличаетс от известного тем, что, в раствор ввод т гидроксиламин сол нокислый и лроцесс ведут лри темлературе 120-150° С. Это лозвол ет интенсифицировать лроцеос.The proposed method differs from the known one in that hydroxylamine hydrochloride is added to the solution and the process is conducted at a temperature of 120-150 ° C. This allows for intensification of the hydroceos.
Раствор ло лрбдложенЕОму способу имеет следующий состав, г/л:The solution of the solvent method has the following composition, g / l:
Гидроксиламин сол нокислый10-70Hydroxylamine hydrochloride 10-70
Гидроокись аммони (5-25%Ammonium hydroxide (5-25%
pacTiBOp)ОстальноеpacTiBOp) Else
По лредложенному способу никель и кобальт полностью удал ютс с основы, например , из стали, без растравливани последней.By the foregoing method, nickel and cobalt are completely removed from the base, for example, from steel, without etching the latter.
Например, при осуществлении процесса в 25% водном растворе аммиа1ка, содержащемFor example, when carrying out the process in a 25% aqueous solution of ammonia, containing
15 г/л гидроксиламина сол нокислого лри темературе 140° С скорость растворени «икел оставл ет до 0,8 мкм/мин., а кобальта - до 0,5 мкм/мин.15 g / l of hydroxylamine hydrochloride with a temperature of 140 ° C, the dissolution rate of ikel is up to 0.8 µm / min, and cobalt - up to 0.5 µm / min.
Предложенный способ лозвол ет интенсифицировать процесс за счет ислользовани раствора определенного состава и повышенной темлературы.The proposed method allows to intensify the process by using a solution of a certain composition and increased temperature.
Предмет изобретен и The subject is invented and
Способ сн ти покрытий Из никел и кобальта путем выдержки в водном растворе на осно-ве гидроокиси аммони , отличающийс тем, что, с целью интенсификации процесса, в раствор ввод т пидроксиламнн сол нокислый при следующем содержании комлонентов, г/л: Гидроксиламин сол нокислый10-70The method of removing coatings of nickel and cobalt by holding in an aqueous solution based on ammonium hydroxide, characterized in that, in order to intensify the process, piroxylamine hydrochloride is added to the solution at the following content, g / l: 70
Гидроокись аммони (5-25% раствор)ОстальноеAmmonium hydroxide (5-25% solution) Rest
и лроцесс ведут лри темлературе 120-150° С.and the process are carried out at a temperature of 120-150 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1749775A SU428043A1 (en) | 1972-02-18 | 1972-02-18 | METHOD OF REMOVAL OF COATINGS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1749775A SU428043A1 (en) | 1972-02-18 | 1972-02-18 | METHOD OF REMOVAL OF COATINGS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU428043A1 true SU428043A1 (en) | 1974-05-15 |
Family
ID=20503726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1749775A SU428043A1 (en) | 1972-02-18 | 1972-02-18 | METHOD OF REMOVAL OF COATINGS |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU428043A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2820637C1 (en) * | 2023-12-12 | 2024-06-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ") | Solution for removing nickel-phosphorus coating from copper or copper-containing substrate |
-
1972
- 1972-02-18 SU SU1749775A patent/SU428043A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2820637C1 (en) * | 2023-12-12 | 2024-06-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ") | Solution for removing nickel-phosphorus coating from copper or copper-containing substrate |
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