SU1278135A1 - Electrolyte for electrochemical machining of low-melting alloys - Google Patents

Electrolyte for electrochemical machining of low-melting alloys Download PDF

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SU1278135A1
SU1278135A1 SU853879974A SU3879974A SU1278135A1 SU 1278135 A1 SU1278135 A1 SU 1278135A1 SU 853879974 A SU853879974 A SU 853879974A SU 3879974 A SU3879974 A SU 3879974A SU 1278135 A1 SU1278135 A1 SU 1278135A1
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USSR - Soviet Union
Prior art keywords
electrolyte
acetic acid
sodium nitrate
potassium iodide
low
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SU853879974A
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Russian (ru)
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Анна Денисовна Ковалева
Леонид Михайлович Ковалев
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Предприятие П/Я М-5841
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Abstract

Изобретение относитс  к электрофизическим и электрохимическим методам обработки металлов, преимущественно легкоплавких сплавов на основе олова, свинца, рисмута, и позвол ет повысить производительность процесса и качество обработки легкоплавких сплавов типа. Гарта, Вуда и Розе за счет того, что в известный элек:тролит на основе водного раствора натри  азотнокислого ввод т дополнительно калий йодистый, уксусную кислоту и триэтаноламин, сочетание которых в растворе обеспечивает многоступенчатое окисление компонентов сплавов, разрушение св зи окислов с основным металлом, образование комплексов и вынос их в раствор, что  вл етс  определ ющим дл  равномерности распределени  тока по обрабатываемой поверхности. Все это, кроме повышени  скорости съема металла в 1,82 ,9 раза, повьш1ает качество обрабатываемой поверхности, уменьшает в I , два раза шероховатость поверхности при снижении стоимости компонентов (Л электролита в 1,7 раза по сравнению с известным электролитом.The invention relates to electrophysical and electrochemical methods for the treatment of metals, predominantly low-melting alloys based on tin, lead, rismuth, and allows for an increase in the productivity of the process and the quality of the processing of low-melting alloys of the type. Garth, Wood and Rose due to the fact that potassium iodide, acetic acid and triethanolamine are added to a known electrolyte based on an aqueous solution of sodium nitrate, the combination of which in the solution provides multi-stage oxidation of the alloy components, breaking the bond of oxides with the base metal, the formation of complexes and their removal into solution, which is decisive for the uniformity of current distribution over the treated surface. All this, besides increasing the metal removal rate by 1.82, 9 times, increases the quality of the surface being processed, reduces I, twice the surface roughness while reducing the cost of components (L electrolyte 1.7 times compared with the known electrolyte.

Description

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Claims (1)

Формула изобретени Invention Formula 30thirty 4040 Электролит дл  электрохимической 45 обработки легкоплавких сплавов на основе водного раствора натри  азотнокислого , отличающийс  тем, что, с целью повышени  производительности и качества обработки, он 50 дополнительно содержит калий иодис- тьй, уксусную кислоту и триэтанол- aivMH, причем компоненты вз ты в следующем соотношении, мас.%:The electrolyte for the electrochemical treatment of low-melting alloys based on an aqueous solution of sodium nitrate, characterized in that, in order to improve the performance and quality of processing, it 50 additionally contains potassium iodide, acetic acid, and triethanol-aivMH, and the components are taken in the following ratio , wt.%: Натрий азотнокислый 8,0-10,0 S5 Калий йодистый 2,0-3,0 Уксусна  кислота 1,0-2,0 Триэтаноламин 0,4-1,0 ВодаОстальноеSodium nitrate 8.0-10.0 S5 Potassium iodide 2.0-3.0 Acetic acid 1.0-2.0 Triethanolamine 0.4-1.0 Water Remaining Пример 3. Готов т электро10Example 3. Preparing electro 10 лит, раствор   необходимое количестlit, solution required amount во солей по предложенному составу из расчета: натрий азотнокислый 8,0 мас.%, калий йодистый 2 мас.%, уксусна  кислота 1 об,%, триэтанолаг-п-ш 1,0 мас.%, в водопроводной воде 88,0 мас.%. Образцы из сплава Гарта. в этом электролите обрабатывают на лабораторной установке с протоком электролита и.неподвижным катодом- инструментом при рН 7,0-9,0,температуре 23±3 с, начальном межэлектродном зазоре 0,15 мм и скорости течени  электролита 3,5 м/с. Плотность тока при напр жении на  чейке станка 8 В составл ет 20 А/см. После пропускани  тока в течение 30 с величина линейного съема мета.лла составл ет 1,82 мм, чтов2,9 раза больше, чем при обработке на тех же режимах в известном электролите. Шероховатость поверхности ,2 мкм, что вдвое меньше, чем при обработке в . известном электролите.in the salts according to the proposed composition at the rate of: sodium nitrate 8.0% by weight, potassium iodide 2% by weight, acetic acid 1% by volume, triethanolg-n-sh 1.0% by weight, in tap water 88.0% .%. Samples of alloy Garth. In this electrolyte, a laboratory installation with an electrolyte duct and a stationary cathode instrument at pH 7.0–9.0, a temperature of 23 ± 3 s, an initial electrode gap of 0.15 mm and an electrolyte flow rate of 3.5 m / s are processed. The current density at a cell voltage of 8 V is 20 A / cm. After passing a current for 30 seconds, the linear removal rate of a meta. Lll is 1.82 mm, which is 2.9 times greater than when processed in the same conditions in a known electrolyte. The surface roughness, 2 microns, which is half that in processing. known electrolyte. Таким образом, в предложенном электролите производительность обработки в 1,8-2,9 раза вьше, -чем в из- вестном, шероховатость поверхности уменьшаетс  в два раза. При этом снижаетс  стоимость комнонентов электролита в 1,7 раза.Thus, in the proposed electrolyte, the processing capacity is 1.8–2.9 times higher than in the well-known, the surface roughness is halved. This reduces the cost of components of the electrolyte by 1.7 times. Формула изобретени Invention Formula Электролит дл  электрохимической обработки легкоплавких сплавов на основе водного раствора натри  азотнокислого , отличающийс  тем, что, с целью повышени  произвоительности и качества обработки, он ополнительно содержит калий иодис- тьй, уксусную кислоту и триэтанол- aivMH, причем компоненты вз ты в следующем соотношении, мас.%:The electrolyte for the electrochemical treatment of low-melting alloys based on an aqueous solution of sodium nitrate, characterized in that, in order to increase the productivity and quality of processing, it additionally contains potassium iodine, acetic acid and triethanol-aivMH, and the components are taken in the following ratio, wt .%: Натрий азотнокислый 8,0-10,0 Калий йодистый 2,0-3,0 Уксусна  кислота 1,0-2,0 Триэтаноламин 0,4-1,0 ВодаОстальноеSodium nitrate 8.0-10.0 Potassium iodide 2.0-3.0 Acetic acid 1.0-2.0 Triethanolamine 0.4-1.0 Water Remaining
SU853879974A 1985-03-29 1985-03-29 Electrolyte for electrochemical machining of low-melting alloys SU1278135A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5639363A (en) * 1992-06-19 1997-06-17 Rikagaku Kenkyusho Apparatus and method for mirror surface grinding and grinding wheel therefore
FR3089836A1 (en) * 2018-12-17 2020-06-19 Safran Aircraft Engines Electrolyte for electrochemical machining of γ-γ ’’ type nickel-based superalloys
CN113544316A (en) * 2018-12-17 2021-10-22 赛峰飞机发动机公司 Electrolyte for electrochemical machining of gamma-gamma' nickel-based superalloy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 1042942, кл. В 23 Р 1/16, 1983. *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5639363A (en) * 1992-06-19 1997-06-17 Rikagaku Kenkyusho Apparatus and method for mirror surface grinding and grinding wheel therefore
FR3089836A1 (en) * 2018-12-17 2020-06-19 Safran Aircraft Engines Electrolyte for electrochemical machining of γ-γ ’’ type nickel-based superalloys
WO2020128294A3 (en) * 2018-12-17 2020-08-13 Safran Aircraft Engines Electrolyte for the electrochemical machining of gamma-gamma double prime-type nickel-based superalloys
CN113544316A (en) * 2018-12-17 2021-10-22 赛峰飞机发动机公司 Electrolyte for electrochemical machining of gamma-gamma' nickel-based superalloy
CN113574211A (en) * 2018-12-17 2021-10-29 赛峰飞机发动机公司 Electrolyte for electrochemical machining of gamma-gamma' nickel-based superalloys
US11548085B2 (en) 2018-12-17 2023-01-10 Safran Aircraft Engines Electrolyte for electrochemical machining of gamma-gamma prime nickel-based superalloys
US11712744B2 (en) 2018-12-17 2023-08-01 Safran Aircraft Engines Electrolyte for electrochemical machining of γ-γ″ nickel-based superalloys
EP4215647A3 (en) * 2018-12-17 2023-08-16 Safran Aircraft Engines Electrolyte for the electrochemical machining of gamma-gamma double prime-type nickel-based superalloys

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