SU293873A1 - METHOD OF ELECTROCHEMICAL TREATMENT OF PRODUCTS FROM TITANIUM AND ITS ALLOYS - Google Patents
METHOD OF ELECTROCHEMICAL TREATMENT OF PRODUCTS FROM TITANIUM AND ITS ALLOYSInfo
- Publication number
- SU293873A1 SU293873A1 SU1304498A SU1304498A SU293873A1 SU 293873 A1 SU293873 A1 SU 293873A1 SU 1304498 A SU1304498 A SU 1304498A SU 1304498 A SU1304498 A SU 1304498A SU 293873 A1 SU293873 A1 SU 293873A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- products
- titanium
- alloys
- electrochemical treatment
- sulfuric acid
- Prior art date
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title description 5
- 229910052719 titanium Inorganic materials 0.000 title description 5
- 239000010936 titanium Substances 0.000 title description 5
- 239000000956 alloy Substances 0.000 title description 3
- 229910045601 alloy Inorganic materials 0.000 title description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene (PE) Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
Известен способ электрохимической обработки изделий из титана и его сплавов в растворе на основе серной кислоты. Однако при этом качество обрабатываемой поверхности низкое.The known method of electrochemical processing of products from titanium and its alloys in a solution based on sulfuric acid. However, the quality of the treated surface is low.
Предложенный способ отличаетс от известного тем, что, с целью полного сн ти окалины и улучшени качества обрабатываемой поверхности , в раствор ввод т сернокислый натрий при следующем соотношении .компонентов , вес. %:The proposed method differs from the well-known fact that, in order to completely descale and improve the quality of the treated surface, sodium sulphate is introduced into the solution in the following ratio of components, wt. %:
Серна кислота20-30Sulfuric acid 20-30
Сернокислый натрий5-10Sodium Sulphate5-10
ВодаОстальноеWaterEverything
и процесс ведут при температуре 20-50°С иand the process is carried out at a temperature of 20-50 ° C and
плотности тока 0,5-2 а/дм.current density 0.5-2 a / dm.
Посто нный реверсируемый ток подводитс к изделию бипол рным методом при непрерывной подаче изделий через элекгролитическую ванну, что позвол ет автоматизировать технологический процесс очистки титановых изделий от окалины, улучшить услови труда обслуживающего персонала.The constant reversible current is supplied to the product by the bipolar method with a continuous supply of products through an electrolytic bath, which makes it possible to automate the technological process of cleaning titanium products from scale, to improve the working conditions of the service personnel.
Дл уменьшени газовыделений зеркало ванны покрывают полиэтиленовыми шариками диаметром 10-15 мм в два сло .To reduce gassing, the bath mirror is covered with polyethylene balls with a diameter of 10-15 mm in two layers.
Технологический процесс очистки осуществл ют в следующем пор дке. Титановый пруток , проволоку или трубу пропускают через штуцера ванны, в которых дл предупреждени вытекани электролита имеютс манжеты из кислотостойкой резины. Затем привод т в действие прот жной механизм и одновременно провод т реверсивную обработку издели . Скорость подачи издели l, 2,5-10- Ml сек. Издели после электрохимической обработки осветл ют в течение 0,5- 1 мин в растворе следующего состава, г/л:The cleaning process is carried out in the following order. A titanium rod, wire or tube is passed through bath fittings, in which there are cuffs of acid-resistant rubber to prevent electrolyte leakage. Then, a pulling mechanism is actuated and at the same time a reversible treatment of the product is carried out. The feed rate of the product l, 2,5-10-Ml seconds. The products after electrochemical treatment are clarified for 0.5-1 minutes in a solution of the following composition, g / l:
Серна кислота80-100Sulfuric acid80-100
Азотна кислота120-140Nitric acid120-140
Плавикова кислота40- 50Hydrofluoric acid40-50
Сульфоуголь1- 1,5Sulfonate1-1.5
По предложенному способу электрохимической обработки поверхность обрабатываемых изделий получают гладкой, светлой без растравливани основы.According to the proposed method of electrochemical treatment, the surface of the processed products is obtained smooth, light without etching the substrate.
Предмет изобретени Subject invention
Способ электрохимической обработки изделий из титана и его сплавов в растворе на основе серной кислоты, отличающийс тем, что, с целью полного сн ти окалины и улучшени качества обрабатываемой по.верхности, в раствор ввод т сернокислый натрий при следующем соотнощении компонентов, вес. %: Серна кислота20-30The method of electrochemical processing of products from titanium and its alloys in a solution based on sulfuric acid, characterized in that, in order to completely descale and improve the quality of the processed surface, sodium sulfate is introduced into the solution at the following ratio of components, %: Sulfuric acid 20-30
Сернокислый натрий5-10Sodium Sulphate5-10
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU293873A1 true SU293873A1 (en) |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120160320A1 (en) * | 2009-09-21 | 2012-06-28 | Gp Solar Gmbh | Aqueous acidic etching solution and method for texturing the surface of single crystal and polycrystal silicon substrates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120160320A1 (en) * | 2009-09-21 | 2012-06-28 | Gp Solar Gmbh | Aqueous acidic etching solution and method for texturing the surface of single crystal and polycrystal silicon substrates |
| US8969276B2 (en) * | 2009-09-21 | 2015-03-03 | Basf Se | Aqueous acidic etching solution and method for texturing the surface of single crystal and polycrystal silicon substrates |
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