SU1382881A1 - Composition for removing coatings based on tin-lead alloy - Google Patents
Composition for removing coatings based on tin-lead alloy Download PDFInfo
- Publication number
- SU1382881A1 SU1382881A1 SU864066716A SU4066716A SU1382881A1 SU 1382881 A1 SU1382881 A1 SU 1382881A1 SU 864066716 A SU864066716 A SU 864066716A SU 4066716 A SU4066716 A SU 4066716A SU 1382881 A1 SU1382881 A1 SU 1382881A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tin
- lead alloy
- etching
- acid
- coatings based
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims description 7
- 229910001174 tin-lead alloy Inorganic materials 0.000 title claims description 7
- 239000000203 mixture Substances 0.000 title 1
- 238000005530 etching Methods 0.000 claims description 11
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/30—Acidic compositions for etching other metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F5/00—Electrolytic stripping of metallic layers or coatings
Description
(21) (066716/23-02(21) (066716 / 23-02
(22) 28.03.86(22) 03/28/86
(46) 23.03.88.БЮЛ. № 11(46) 03/23/08/8. № 11
(71)Нальчикское производственное объединение Телемеханика(71) Nalchik Production Association Telemechanics
(72)И.В.Соловьева, Ю.Е.Петрошень и Г.Ф.Ткач(72) I.V. Solov'eva, Yu.E. Petroshen and GFTkach
(53) 621.3.035.44 (088.8)(53) 621.3.035.44 (088.8)
(56) РЖ Хими , 1971, 6, реф.(56) RZH Himi, 1971, 6, ref.
6Л-428П.6L-428P.
Авторское свидетельство СССР № 977518, кл. С 23 G 1/02, 1981.USSR Author's Certificate No. 977518, cl. C 23 G 1/02, 1981.
(54) РАСТВОР ДЛЯ УДАЛЕНИЯ ПОКРЫТИЙ НА ОСНОВЕ СПЛАВА ОЛОВО - СВИНЕЦ (57) Изобретение относитс к электрохимическому удалению покрытий сплавом олово-свинец и может найти применение в электронной промьшшен- ности и радиотехнике. Цель изобрете- ни - повьшение скорости травлени при сохранении равномерности травлени и исключение подтравливани основы . Раствор содержит 370-430 мл. кременфтористоводородной кислоты 45%-ной; 10-20 г;аммони азотнокислого; до 1 л воды дистиллированной. I табл.(54) SOLUTION FOR REMOVAL OF COATINGS ON THE BASIS OF A TIN-LEAD ALLOY (57) The invention relates to the electrochemical removal of tin-lead alloy coatings and can be used in electronic engineering and radio engineering. The purpose of the invention is to increase the etching rate while maintaining the etching uniformity and eliminating base etching. The solution contains 370-430 ml. kremenfluoris hydrofluoric acid 45%; 10-20 g; ammonium nitrate; up to 1 liter of distilled water. Table I
113113
Изобретение относитс к области электрохимического удалени покрытий на основе сплава олово-свинец и может найти применение в электронной промышленности и радиотехнике.The invention relates to the field of electrochemical removal of coatings based on tin-lead alloy and may find application in the electronics industry and radio engineering.
Цель изобретени - повьшение скорости травлени при сохранении равномерности травлени и исключение подтравливани основы, ,The purpose of the invention is to increase the etching rate while maintaining the etching uniformity and eliminating base etching,,
Удаление покрыти сплавом олово- свинец с медной основы провод т со всеми видами растворов в электролитической ванне при погружении издели в качестве анода. Катодом служила The removal of tin-lead alloy coating from the copper base is carried out with all kinds of solutions in an electrolytic bath when the product is immersed as an anode. Served as cathode
нержавеюща сталь, например, Х18Н9Т, Температура раствора 18-25 С, плот- ность тока 23-25 А/дм, йапр хкение 1-3 В.stainless steel, for example, Х18Н9Т, Solution temperature 18-25 С, current density 23-25 A / dm, yk x xenie 1-3 V.
Раствор приготавливают следуюпщм образом.The solution is prepared as follows.
Дл получени л раствора азотнокислого аммони раствор ют в 400 мл дистиллированной воды, к полученному раствору добавл ют воду до (1000 мл-Ы), где И - количество доливаемой кислоты (N 370 - 430 мл). Затем осторожно доливают кремнефто- ристоводородную кислоту до объема 1 л.To obtain a solution of ammonium nitrate is dissolved in 400 ml of distilled water, water is added to the resulting solution (1000 ml), where I is the amount of acid to be added (N 370 - 430 ml). Then gently add silicofluorosilicic acid to a volume of 1 l.
При содержании кремнефтористоводо родной кислоты до 350 мд/л и азотнокислого аммони до 0 г/л удаление покрыти происходит очень медленно .и неравномерно. Увеличение количества кислоты (свьше 430 мл/л) и аммони азотнокислого (свьЕие 20 г/л.) не ведет к уменьшению времени процесса , которое остаетс в пределах 3-8 мин.When the content of fluorosilicic acid is up to 350 ppm / l and ammonium nitrate to 0 g / l, the removal of the coating is very slow and uneven. An increase in the amount of acid (above 430 ml / l) and ammonium nitrate (20 g / l) does not lead to a decrease in the process time, which remains within 3-8 minutes.
Результаты исследований приведены в таблице. Травление ведут при плотности тока 23 А/дм, температуре 20 - 22 С. Шлиф каждого контакта анализируют металлографическим методом.Подт- разливание подложки наблюдают визуально под микроскопом.The research results are summarized in the table. Etching is carried out at a current density of 23 A / dm, a temperature of 20 - 22 ° C. The length of each contact is analyzed by the metallographic method. Then, the substrate is observed visually under a microscope.
Как видно из представленных данных , электролит по изобретению позвол ет равномерно удалить покрыти сплавом олово-свинец без растравливани подсло .As can be seen from the presented data, the electrolyte according to the invention allows to uniformly remove coatings of tin-lead alloy without etching the sublayer.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864066716A SU1382881A1 (en) | 1986-03-28 | 1986-03-28 | Composition for removing coatings based on tin-lead alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864066716A SU1382881A1 (en) | 1986-03-28 | 1986-03-28 | Composition for removing coatings based on tin-lead alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1382881A1 true SU1382881A1 (en) | 1988-03-23 |
Family
ID=21237429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864066716A SU1382881A1 (en) | 1986-03-28 | 1986-03-28 | Composition for removing coatings based on tin-lead alloy |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1382881A1 (en) |
-
1986
- 1986-03-28 SU SU864066716A patent/SU1382881A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4755265A (en) | Processes for the deposition or removal of metals | |
| WO1990015168A1 (en) | Electrolytic method for regenerating tin or tin-lead alloy stripping compositions | |
| KR880001457B1 (en) | A composition for stripping solder fram a copper substrate | |
| US2964453A (en) | Etching bath for copper and regeneration thereof | |
| KR100316987B1 (en) | Composition and method for stripping solder and tin from printed circuit boards | |
| US1658222A (en) | Electrocleaning | |
| SU1382881A1 (en) | Composition for removing coatings based on tin-lead alloy | |
| MX2022011840A (en) | Method for the treatment of a metal substrate for the preparation of electrodes. | |
| US3669852A (en) | Electroplating gold | |
| US4067783A (en) | Gold electroplating process | |
| Reinheimer | Carbon in gold electrodeposits | |
| Stanković | The effect of Cl (I)− ions on kinetics and mechanism of anodic dissolution and cathodic deposition of copper | |
| EP0616054B1 (en) | Method of manufacturing electrode foil for aluminium electrolytic capacitors | |
| US4189357A (en) | Method of treating a substrate material to form an electrode | |
| Stoychev et al. | The influence of pulse frequency on the hardness of bright copper electrodeposits | |
| US3775267A (en) | Electrodeposition of rhodium | |
| Afifi et al. | Additive behavior in copper electrorefining | |
| US3984291A (en) | Electrodeposition of tin-lead alloys and compositions therefor | |
| ATE135417T1 (en) | METHOD AND DEVICE FOR THE ELECTROLYTICAL DISCHARGE OF METALS FROM A SOLUTION CONTAINING METAL IONS AND ELECTRODE FOR CARRYING OUT THE METHOD | |
| US2954289A (en) | Dissolving of nickel-phosphorous alloys | |
| US2446983A (en) | Zinc plating process and electrolyte | |
| JP2540110B2 (en) | Electro aluminum plating method | |
| US3689385A (en) | Method for the surface treatment of aluminum electrodes for the electrolytic production of zinc,and electrodes thus treated | |
| SU603709A1 (en) | Silver-plating electrolyte | |
| JP3960655B2 (en) | Electrolytic stripping solution for tin or tin alloy and electrolytic stripping method |