SU712230A1 - Electrolyte for electrochemical etching of pin contacts - Google Patents
Electrolyte for electrochemical etching of pin contacts Download PDFInfo
- Publication number
- SU712230A1 SU712230A1 SU782664706A SU2664706A SU712230A1 SU 712230 A1 SU712230 A1 SU 712230A1 SU 782664706 A SU782664706 A SU 782664706A SU 2664706 A SU2664706 A SU 2664706A SU 712230 A1 SU712230 A1 SU 712230A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrolyte
- thiourea
- triethanolamine
- radius
- caustic soda
- Prior art date
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
1one
Изобретение относитс к электрохимическим и электроЛизическим методам обработки и,в частности, касаетс технологии изготовлени металлических острий, используемых в качестве автоэмиттеров и других контактирующих элементов в кристаллических детекторах и т.д.The invention relates to electrochemical and electrolysis processing methods and, in particular, relates to the technology of manufacturing metal tips, used as autoemitters and other contacting elements in crystal detectors, etc.
Известны и ишроко примен ютс дл электрохимического травле и проволок тугоплавкие: металлов электролиты на основе водного 25%-ного раствора едкого кали с добавлением 0,01%-ного раствора меди 1.Known and used for electrochemical baiting and refractory wires: metal electrolytes based on an aqueous 25% solution of sodium hydroxide with the addition of 0.01% solution of copper 1.
Однако при использовании, в качестве электролита растворов едкого кали или едкого натра длина конусной части острий колеблетс в значительных пределах, и дл уменьшени длины конусной части острий примен ют р д специальных устройств, значительно усложн ющих процесс их изготовлени ..However, when using solutions of caustic potash or caustic soda as electrolyte, the length of the cone part of the tips varies considerably, and a number of special devices are used to reduce the length of the cone part of the tips, which significantly complicate the process of their manufacture.
Целью изобретени вл етс у еньшение радиуса кх остри и обеспечение .формировани оптимальной длины конусной части.The aim of the invention is to achieve the radius of the tip and to ensure the formation of the optimum length of the cone.
Дл это1О в известный раствор дополнительно ввод т тиомочевину иFor this, thiourea is additionally introduced into the known solution and
1триэтаноламин при следующем соотношении компонентов, вес.%:1triethanolamine in the following ratio of components, wt.%:
Едкий натр15,0-20,0Caustic soda 15,0-20,0
Тиомочевина0,5-1,5Thiourea 0.5-1.5
Триэтаноламин2,0-3,0Triethanolamine2.0-3.0
Указанные компоненты позвол ют стабилизировать процесс путем изменени поверхностного нат жени раствора и уменьшени газовыделени .These components allow the process to be stabilized by changing the surface tension of the solution and reducing gassing.
00
Дл получени острий с оптимальным соотношением радиуса закруглени вершины и .длины конусной части приготовл ют три раствора. На электроды (заготовку проволоки погружают в электролит на мкм) подают напр 5 жение 7,5 В с частотой 50 Гц в течение 1-3 с (до прекращени реакции). Затем конец проволоки снова погружают в электролит (на ..20 мкм) и Three solutions are prepared to obtain tips with an optimal ratio of the radius of the apex and the length of the cone. A voltage of 7.5 V with a frequency of 50 Hz is applied to the electrodes (the wire blank is immersed in the electrolyte per μm) for 1–3 s (until the reaction ceases). Then the end of the wire is again immersed in the electrolyte (..20 microns) and
0 подают 1-3 с то же напр жение.0 serves 1-3 with the same voltage.
Пример 1. В электролите, содержащем, г/л:Example 1. In an electrolyte containing, g / l:
Едкий натр150Caustic soda 150
Тиомочевина5Thiourea5
Триэтаноламин 20Triethanolamine 20
5five
при температуре 20±5 С, напр жении 7,5 В, частоте 50 Гц получают остри , радиус закруглени вершины которых л. 1 мкм и.длина конусной ч сти 64 мкм.at a temperature of 20 ± 5 ° C, a voltage of 7.5 V, a frequency of 50 Hz, spikes are obtained, the radius of which is l. 1 micron and conical length 64 microns.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782664706A SU712230A1 (en) | 1978-08-28 | 1978-08-28 | Electrolyte for electrochemical etching of pin contacts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782664706A SU712230A1 (en) | 1978-08-28 | 1978-08-28 | Electrolyte for electrochemical etching of pin contacts |
Publications (1)
Publication Number | Publication Date |
---|---|
SU712230A1 true SU712230A1 (en) | 1980-01-30 |
Family
ID=20785499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782664706A SU712230A1 (en) | 1978-08-28 | 1978-08-28 | Electrolyte for electrochemical etching of pin contacts |
Country Status (1)
Country | Link |
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SU (1) | SU712230A1 (en) |
Cited By (1)
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 |
-
1978
- 1978-08-28 SU SU782664706A patent/SU712230A1/en active
Cited By (1)
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 |
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