SU418300A1 - ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT OF ALUMINUM AND ITS ALLOYS - Google Patents

ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT OF ALUMINUM AND ITS ALLOYS

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Publication number
SU418300A1
SU418300A1 SU1741847A SU1741847A SU418300A1 SU 418300 A1 SU418300 A1 SU 418300A1 SU 1741847 A SU1741847 A SU 1741847A SU 1741847 A SU1741847 A SU 1741847A SU 418300 A1 SU418300 A1 SU 418300A1
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SU
USSR - Soviet Union
Prior art keywords
electrolyte
alloys
aluminum
electrochemical treatment
electrochemical
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Application number
SU1741847A
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Russian (ru)
Original Assignee
А. В. Нечаев, А. И. Левин , В. А. Петров
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Application filed by А. В. Нечаев, А. И. Левин , В. А. Петров filed Critical А. В. Нечаев, А. И. Левин , В. А. Петров
Priority to SU1741847A priority Critical patent/SU418300A1/en
Application granted granted Critical
Publication of SU418300A1 publication Critical patent/SU418300A1/en

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Description

1one

Изобретение относитс  к размерной электрохимической обработке металлов, в частности , алюмини  и его сплавов.This invention relates to dimensional electrochemical machining of metals, in particular, aluminum and its alloys.

Известен электролит дл  электрохимической размерной обработки алюминиевых сплавов , представл ющий собой водный раствор азотнокислого натри .A known electrolyte for the electrochemical dimensional processing of aluminum alloys is an aqueous solution of sodium nitrate.

Однако при известном составе электролита скорость подачи катода невелика. Например, при электрохимической размерной обработке сплава АМгб в электролите, содержащем 200 г/л NaNOs, скорость подачи катода составл ет 1-1,5 мм/мин.However, with a known electrolyte composition, the cathode feed rate is low. For example, in the electrochemical dimensional processing of an AMgb alloy in an electrolyte containing 200 g / l NaNOs, the cathode feed rate is 1-1.5 mm / min.

Цель изобретени  - разработка состава электролита дл  электрохимической размерной обработки алюмини  и его сплавов, обеспечивающего устойчивый процесс электрохимической обработки алюминиевых сплавов с большими скорост ми подачи катода с одновременным увеличением срока службы электролита .The purpose of the invention is to develop an electrolyte composition for the electrochemical dimensional processing of aluminum and its alloys, ensuring a stable electrochemical processing of aluminum alloys with high cathode feed rates while simultaneously increasing the service life of the electrolyte.

Это достигаетс  за счет применени  в качестве электролита - раствора азотнокислого аммони , обладающего высокой электропроводностью , и поддержанием посто нной величины рН электролита в процессе обработки.This is achieved through the use of an electrolyte solution of ammonium nitrate, which has a high electrical conductivity, and by maintaining a constant pH of the electrolyte during processing.

Предлагаемый электролит отличаетс  от известного тем, что вместо раствора азотнокислого натри  примен етс  водный раствор азотнокислого аммони . В ходе процессаThe proposed electrolyte differs from the known one in that an aqueous solution of ammonium nitrate is used instead of a sodium nitrate solution. During the process

азотпой кислотой непрерывно поддерживаетс  посто нное рН 5-5,5.nitric acid is continuously maintained at a constant pH of 5-5.5.

Применение предлагаемого электролита позвол ет повысить скорость подачи катода-ипструмента (производительность процесса) по сравпению с известным электролитом в 3-4 раза и обеспечивает длительную эксплуатацию электролита. Пример. Электрохимическую размернуюThe use of the proposed electrolyte allows to increase the feed rate of the cathode-tool (process performance) in comparison with a known electrolyte by 3-4 times and ensures long-term operation of the electrolyte. Example. Electrochemical dimensional

обработку сплава АМгб осуществл ют в водном растворе азотнокислого аммони , содержащем 28 вес. ч. азотнокислого аммони , азотную кислоту до рН 5-5,5 и воду остальное. Процесс обработки ведут при непрерывномThe treatment of AMGB alloy is carried out in an aqueous solution of ammonium nitrate, containing 28 wt. including ammonium nitrate, nitric acid to pH 5-5.5 and water the rest. The treatment process is carried out in continuous

подкислении электролита азотной кислотой до рН 5-5,5, температуре электролита 40°С, давлении на входе 8 атм, на выходе 3 атм, напр жении 14-15 в и плотности тока 180а/см2. Скоростьподачикатода-инструментаacidification of the electrolyte with nitric acid to a pH of 5-5.5, electrolyte temperature of 40 ° C, inlet pressure of 8 atm, outlet of 3 atm, voltage of 14-15 V and current density of 180 a / cm2. Tool speed

4 мм/мин.4 mm / min.

Предмет изобретени Subject invention

Электролит дл  электрохимической обработки алюмини  и его сплавов, представл ющий собой водный раствор нейтральной соли с добавлением кислоты дл  стабилизации рН, отличающийс  тем, что. с целью повыщени An electrolyte for the electrochemical treatment of aluminum and its alloys, which is an aqueous solution of a neutral salt with the addition of an acid to stabilize the pH, characterized in that. for the purpose of raising

производигельности обработки путем увеличе3 ни  электропроводности раствора, в него введен азотнокислый аммоний и азотна  кислота , а компоненты вз ты в следующем соотно4 шении: 25-35 вес. ч. азотнокислого аммоний, азотной кислоты до рН 5-5,5, воды осталь вое.The efficiency of the treatment is increased by increasing the conductivity of the solution, ammonium nitrate and nitric acid are introduced into it, and the components are taken in the following ratio: 25-35 wt. ammonium nitrate, nitric acid to pH 5-5.5, water remaining.

SU1741847A 1972-01-25 1972-01-25 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT OF ALUMINUM AND ITS ALLOYS SU418300A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1741847A SU418300A1 (en) 1972-01-25 1972-01-25 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT OF ALUMINUM AND ITS ALLOYS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1741847A SU418300A1 (en) 1972-01-25 1972-01-25 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT OF ALUMINUM AND ITS ALLOYS

Publications (1)

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SU418300A1 true SU418300A1 (en) 1974-03-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661219A (en) * 1985-02-06 1987-04-28 Hoechst Aktiengesellschaft Process for the electrochemical roughening of aluminum for use in printing plate supports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661219A (en) * 1985-02-06 1987-04-28 Hoechst Aktiengesellschaft Process for the electrochemical roughening of aluminum for use in printing plate supports

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