SU399338A1 - ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT - Google Patents

ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT

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Publication number
SU399338A1
SU399338A1 SU1740550A SU1740550A SU399338A1 SU 399338 A1 SU399338 A1 SU 399338A1 SU 1740550 A SU1740550 A SU 1740550A SU 1740550 A SU1740550 A SU 1740550A SU 399338 A1 SU399338 A1 SU 399338A1
Authority
SU
USSR - Soviet Union
Prior art keywords
electrolyte
sodium
electrochemical treatment
phosphate
parts
Prior art date
Application number
SU1740550A
Other languages
Russian (ru)
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 SU1740550A priority Critical patent/SU399338A1/en
Application granted granted Critical
Publication of SU399338A1 publication Critical patent/SU399338A1/en

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  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Description

1one

Изобретение относитс  к машиностроению и может быть использовано дл  электрохимической обработки металлов.The invention relates to mechanical engineering and can be used for the electrochemical treatment of metals.

Существует и примен етс  в практике р д электролитов на основе азотнокислого кали  (натри ).A series of potassium nitrate (sodium) based electrolytes exists and is used in practice.

Известен электролит, состо щий на 5% азотнокислого кали , 3% фосфорнокислого натри ,. 0,5% азотнокислого натри  и 91,5% воды.An electrolyte consisting of 5% potassium nitrate, 3% sodium phosphate, is known. 0.5% sodium nitrate and 91.5% water.

Однако повыщенна  щелочность (рН 11) известного электролита вызывает вредное действие па кожу рабочего и быстрое защламление электролита в процессе работы. При этом количество вводимого ингибитора недостаточно предохран ет детали и оборудование от коррозии.However, increased alkalinity (pH 11) of a known electrolyte causes harmful effects on the skin of the worker and quick flashing of the electrolyte during operation. At the same time, the amount of inhibitor injected does not sufficiently protect parts and equipment from corrosion.

Предлагаемый электролит отличаетс  тем, что в его состав введено жидкое стекло, а компоненты вз ты в следующем отнощении, вес. %:The proposed electrolyte is characterized in that liquid glass is introduced into its composition, and the components are taken in the following ratio, weight. %:

Азотнокислый калий (натрий) 1 -5 Трипатрий фосфат (трикалийPotassium nitrate (sodium) 1 -5 Tripat phosphate (trikali

фосфат)5phosphate) 5

Нитрит натри 0,5-1Sodium nitrite 0.5-1

Жидкое стекло0,5-1Liquid glass 0.5-1

Борна  кислота до рН7-9Boric acid to pH 7-9

Водаостальное.Water drain.

Это повыщает коррозионную стойкость обрабатываемых деталей и оборудовани .This increases the corrosion resistance of the parts and equipment to be processed.

Введение в состав электролита нитрита натри  уменьшает коррозию деталей и оборудовани , наход щихс  под слоем электролита , что достигаетс  образованием пассивной пленки нитридов металлов в виде FeN, Fe2N. Тринатрий фосфат (трикалий фосфат) снижает развитие п тнистой коррозии деталей и оборудовани , образу  пассивную пленку на металле в виде фосфата Ре2РО4, Fe2P.The introduction of sodium nitrite into the electrolyte composition reduces the corrosion of parts and equipment under the electrolyte layer, which is achieved by forming a passive film of metal nitrides in the form of FeN, Fe2N. Trisodium phosphate (tripotassium phosphate) reduces the development of dusty corrosion of parts and equipment, forming a passive film on the metal in the form of phosphate Fe2PO4, Fe2P.

Жидкое стекло предотвращает коррозию на детал х и оборудовании вследствии образовани  тонкой защитной пленки, преп тствующей доступу кислорода к поверхности металла .Liquid glass prevents corrosion on parts and equipment due to the formation of a thin protective film that prevents access of oxygen to the metal surface.

Борна  кислота стабилизирует рН , вступа  в реакцию со щелочью электролита по уравнению.Boric acid stabilizes the pH by reacting with an alkali electrolyte by the equation.

Концентраци  азотнокислого калий (натри ) до 5% обеспечивает отсутствие щлама на катоде-инструменте в процессе эксплуатации .A concentration of potassium nitrate (sodium) of up to 5% ensures the absence of lath on the instrument cathode during operation.

Предмет изобретени Subject invention

Электролит дл  электрохимической обработки на основе водных растворов азотнокислого кали  (натри ) борной кислоты до рН 7-Г-9, отличающийс  тем, что, с целью повышени  коррозионной стойкости обрабатываемых деталей и оборудовани , в него введено жидкое стекло, а комлоненты вз ты в следующем соотношении, вес. %: Азотнокислый калий (натрий) 1-Т-5 Нитрат натри  0.5Ч-15 Тринатрий фосфат ( трикалий фосфат)5 Жидкое стекло0,5-f-l Борна  кислота до рН7ч-9 Водаостальное.The electrolyte for electrochemical treatment based on aqueous solutions of potassium nitrate (sodium) boric acid to pH 7-G-9, characterized in that, in order to increase the corrosion resistance of the parts and equipment being processed, liquid glass was introduced into it, and ratio, weight. %: Potassium nitrate (sodium) 1-T-5 Sodium nitrate 0.5H-15 Trisodium phosphate (tripotassium phosphate) 5 Liquid glass 0.5-f-l Boric acid to pH7h-9 Water rest.

SU1740550A 1972-01-24 1972-01-24 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT SU399338A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1740550A SU399338A1 (en) 1972-01-24 1972-01-24 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1740550A SU399338A1 (en) 1972-01-24 1972-01-24 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT

Publications (1)

Publication Number Publication Date
SU399338A1 true SU399338A1 (en) 1973-10-03

Family

ID=20500937

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1740550A SU399338A1 (en) 1972-01-24 1972-01-24 ELECTROLYTE FOR ELECTROCHEMICAL TREATMENT

Country Status (1)

Country Link
SU (1) SU399338A1 (en)

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