SU380424A1 - METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS - Google Patents

METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS

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Publication number
SU380424A1
SU380424A1 SU1688692A SU1688692A SU380424A1 SU 380424 A1 SU380424 A1 SU 380424A1 SU 1688692 A SU1688692 A SU 1688692A SU 1688692 A SU1688692 A SU 1688692A SU 380424 A1 SU380424 A1 SU 380424A1
Authority
SU
USSR - Soviet Union
Prior art keywords
neutralization
metals
electrolyte
electrolytes
electrochemical treatment
Prior art date
Application number
SU1688692A
Other languages
Russian (ru)
Inventor
М. В. Щербак П. М. Безземельна В. Постаногов
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 filed Critical
Priority to SU1688692A priority Critical patent/SU380424A1/en
Application granted granted Critical
Publication of SU380424A1 publication Critical patent/SU380424A1/en

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Description

1one

Изобретение относитс  к электрохимической обработке металлов и сплавов.This invention relates to the electrochemical machining of metals and alloys.

Известен снособ нейтрализации электролитов при электрохимической обработке металлов введением в электролит жидких кислот.A known electropholes neutralizing electrolyte for electrochemical processing of metals by the introduction of liquid acids into the electrolyte.

Предлагаемый снособ отличаетс  от известного тем, что пейтрализацню осуществл ют электролизом, дл  чего в электролит ввод т положительный и отрицательный электроды, между которыми помещают ионообменную мембрану, например капроновую ткань, пропитанную смолой АВ-17. Это позвол ет поддерживагь носто нпую величину рН.The proposed removal method differs from the known one in that the neutralization is carried out by electrolysis, for which positive and negative electrodes are inserted into the electrolyte, between which an ion-exchange membrane, for example a nylon fabric impregnated with AB-17 resin, is placed. This allows the pH to be maintained.

На чертеже изображена емкость, в которой происходит процесс нейтрализации электролита .The drawing shows the capacity in which the process of neutralization of the electrolyte.

В емкость У с защелоченным электролигом 2 помещают положигельный 3 и отрицательный 4 электроды, а между электродами - ионообменную мембрану 5 из капроновой ткани, пропитанной смолой АВ-17, ВД-ЮП и т. п.A positive-numbered 3 and a negative 4 electrodes are placed in a container U with a latched electrolyte 2, and between the electrodes is an ion-exchange membrane 5 made of nylon fabric impregnated with AB-17 resin, VD-UP, etc.

К электродам 3 и 4 подают ток из расчета 0,2-0,5 a/d..t. Ведетс  электролиз, в результате которого в прикатодном пространстве идет накопление анионов ОН за счет того, что ионообменна  мембрана пропускает только эти апионы. В прианодном нростраистве скапливаютс  ионы водорода, за счет чего в приаиодном пространстве среда подкнсл етс , т.е. электролит нейтрализуетс . Подбором режима (плотность тока, панр жение) удаетс  поддерживать рН в нриаиодном нространстве нужной величины в течение всего времени ведени  процесса элект1юхпмической обработки. В мо |1ент прекращени  э.лектрохимической обработки щелочную среду прпкатодного пространства нейтрализуют подкисленным электролитом нрнаподного пространства. Когда способность ионообменной мембраны пропускать анионы ОН сннжаетс . мембрану вывод т из электролита и восстанавливают ее, обрабатыва  раствором поваренной соли.To the electrodes 3 and 4 serves the current rate of 0.2-0.5 a / d..t. Electrolysis is conducted, as a result of which OH anions accumulate in the cathode space due to the fact that the ion-exchange membrane only allows these apions to pass through. Hydrogen ions are accumulated in the near-nodustry, due to which the medium in the near-iodine space, i.e. the electrolyte is neutralized. By selecting the mode (current density, voltage), it is possible to maintain the pH in the desired amount of pH throughout the entire process of electroprocessing. In the termination of the electrochemical treatment, the alkaline environment of the precathode space is neutralized with an acidified electrolyte in the upper and lower space. When the ability of the ion-exchange membrane to pass through the OH anions decreases. the membrane is removed from the electrolyte and restored by treatment with sodium chloride solution.

Предмет изобретени Subject invention

Способ нейтрализации электролитов при электрохимической обработке металлов, отличающийс  тe, что, с целью поддержани  посто нной вел11чины рП, нейтралнзацию осуществл ют электролизом, дл  чего в электролит ввод т положнтельный н отрпцательный электроды, между которыми помещают ионообменную мембрану, например капроновую ткань, пропитанную смолой АВ-17.A method of neutralizing electrolytes during the electrochemical treatment of metals, characterized by the fact that, in order to maintain a constant RP cycle, neutralization is carried out by electrolysis, for which positive electrolyte electrodes are inserted into the electrolyte, between which is placed an ion-exchange membrane impregnated with resin -17.

SU1688692A 1971-08-16 1971-08-16 METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS SU380424A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1688692A SU380424A1 (en) 1971-08-16 1971-08-16 METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1688692A SU380424A1 (en) 1971-08-16 1971-08-16 METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS

Publications (1)

Publication Number Publication Date
SU380424A1 true SU380424A1 (en) 1973-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1688692A SU380424A1 (en) 1971-08-16 1971-08-16 METHOD OF ELECTROLYTES NEUTRALIZATION 'AT ELECTROCHEMICAL TREATMENT OF METALS

Country Status (1)

Country Link
SU (1) SU380424A1 (en)

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