RU1807100C - Electrolyte for anodic dissolution of titanium coatings - Google Patents
Electrolyte for anodic dissolution of titanium coatingsInfo
- Publication number
- RU1807100C RU1807100C SU4796702A RU1807100C RU 1807100 C RU1807100 C RU 1807100C SU 4796702 A SU4796702 A SU 4796702A RU 1807100 C RU1807100 C RU 1807100C
- Authority
- RU
- Russia
- Prior art keywords
- electrolyte
- anodic dissolution
- dimethylformamide
- titanium coatings
- titanium
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F5/00—Electrolytic stripping of metallic layers or coatings
Abstract
Использование: в электрохимической обработке металлов. Сущность изобретени : электролит содержит диметилформа- мид 96-99 мас.%, роданид аммони или щелочных металлов 1-4 мас.%. 1 табл.Usage: in the electrochemical processing of metals. The inventive electrolyte contains dimethylformamide 96-99 wt.%, Thiocyanate of ammonium or alkali metals 1-4 wt.%. 1 tab.
Description
Изобретение относитс к электрохимической обработке металлов, в частности к анодному растворению титановых покрытий , вакуумно напыленных на стекло.The invention relates to the electrochemical treatment of metals, in particular to the anodic dissolution of titanium coatings vacuum sprayed on glass.
Цель изобретени - снижение напр жени за счет увеличени электропроводности электролита.The purpose of the invention is to reduce the voltage by increasing the conductivity of the electrolyte.
Дл лучшего понимани сущности изо- брэтени привод тс следующие примеры его применени , которые иллюстрируютс данными таблицы.To better understand the nature of the invention, the following examples of its application are given, which are illustrated in the table.
П р и м е р 1. Приготовлен электролит, содержащий М,М-диметилформамид и 0,5% роданид аммони . Процесс растворени проводитс при температуре 25° С при анодной плотности 5-30 мА/см2 при напр жении 29-58 В, Данные приведены в таблице . В других примерах ввод т роданиды кали , натри или аммони в различных концентраци х .PRI me R 1. Prepared an electrolyte containing M, M-dimethylformamide and 0.5% ammonium thiocyanate. The dissolution process is carried out at a temperature of 25 ° C at an anode density of 5-30 mA / cm2 at a voltage of 29-58 V. The data are shown in the table. In other examples, potassium, sodium or ammonium thiocyanates are administered at various concentrations.
Как видно из таблицы, предлагаемый электролит позвол ет удал ть с высокойAs can be seen from the table, the proposed electrolyte allows you to remove with high
скоростью (1-3 с) титановые пленки, вакуумно напиленные на стекл нную подложку без растворени последней.at a speed (1-3 s), titanium films vacuum-deposited on a glass substrate without dissolving the latter.
Это объ сн етс тем, что с увеличением концентрации электролита (1-4%) увеличиваетс электропроводность раствора и падает сопротивление электролита. При высоких концентраци х солей наблюдаетс пассиваци титанового электролита, а концентраци соли ограничена ее растворимостью в ДМФА. В за вл емых электролитах оптимальному составу соответствует минимум рабочего напр жени (9-18 В), которое значительно ниже, чем по прототипу (22-37 В).This is explained by the fact that with an increase in the electrolyte concentration (1-4%), the conductivity of the solution increases and the resistance of the electrolyte decreases. At high salt concentrations, passivation of the titanium electrolyte is observed, and the salt concentration is limited by its solubility in DMF. In the claimed electrolytes, the optimum composition corresponds to the minimum working voltage (9-18 V), which is significantly lower than that of the prototype (22-37 V).
Предлагаемый электролит обеспечивает высокую скорость удалени пленки и может быть использован в различных област х техники, где возникает необходимость быстрого удалени титановых пленок со стекл нной или керамической основы.The proposed electrolyte provides a high film removal rate and can be used in various fields of technology where it becomes necessary to quickly remove titanium films from a glass or ceramic base.
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4796702 RU1807100C (en) | 1990-03-01 | 1990-03-01 | Electrolyte for anodic dissolution of titanium coatings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4796702 RU1807100C (en) | 1990-03-01 | 1990-03-01 | Electrolyte for anodic dissolution of titanium coatings |
Publications (1)
Publication Number | Publication Date |
---|---|
RU1807100C true RU1807100C (en) | 1993-04-07 |
Family
ID=21499013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4796702 RU1807100C (en) | 1990-03-01 | 1990-03-01 | Electrolyte for anodic dissolution of titanium coatings |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU1807100C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108531739A (en) * | 2018-05-30 | 2018-09-14 | 中国科学院金属研究所 | A kind of method of electrodissolution high-temperature alloy waste material |
-
1990
- 1990-03-01 RU SU4796702 patent/RU1807100C/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР N«730889, кл. С 25 F 5/00. 1980. Авторское свидетельство СССР Ns 1168634, кл. С 25 F 5/00. 1985. -. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108531739A (en) * | 2018-05-30 | 2018-09-14 | 中国科学院金属研究所 | A kind of method of electrodissolution high-temperature alloy waste material |
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