SU1696583A1 - Solution for removing oxide films from surface of titanium and its alloys - Google Patents
Solution for removing oxide films from surface of titanium and its alloys Download PDFInfo
- Publication number
- SU1696583A1 SU1696583A1 SU894740425A SU4740425A SU1696583A1 SU 1696583 A1 SU1696583 A1 SU 1696583A1 SU 894740425 A SU894740425 A SU 894740425A SU 4740425 A SU4740425 A SU 4740425A SU 1696583 A1 SU1696583 A1 SU 1696583A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- titanium
- alloys
- solution
- oxide films
- removing oxide
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- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/10—Other heavy metals
- C23G1/106—Other heavy metals refractory metals
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Изобретение отноститс к химической обработке металлов, в частности к растворам дл удалени оксидных пленок с поверхности титана и его сплавов. Цель изобретени - снижение потерь титана. Раствор дл травлени титана и его сплавов содержит, г/л: сол на кислота 100- 150; фторид натри 1-1,5; перекись водорода 20-30. Снижение потерь титана достигаетс за счет дополнительного введени в состав раствора перекиси водорода . 1 табл,The invention relates to the chemical treatment of metals, in particular, to solutions for removing oxide films from the surface of titanium and its alloys. The purpose of the invention is to reduce the loss of titanium. The solution for etching titanium and its alloys contains, g / l: hydrochloric acid 100-150; sodium fluoride 1-1.5; hydrogen peroxide 20-30. The loss of titanium is reduced by the additional addition of hydrogen peroxide to the composition. 1 tabl,
Description
Изобретение относитс к химической обработке металлов, в частности к растворам дл удалени оксидных пленок с поверхности титана и его сплавов, и может быть использовано при переработке некондиционных стружковых отходов титана и его сплавов методом гидрировани -дегидрировани .The invention relates to the chemical treatment of metals, in particular, solutions for the removal of oxide films from the surface of titanium and its alloys, and can be used in the processing of substandard chip waste of titanium and its alloys by the method of hydrogenation-dehydration.
Цель изобретени - снижение потерь титана.The purpose of the invention is to reduce the loss of titanium.
Раствор дл травлени титана и его сплавов содержит, г/л:The solution for etching titanium and its alloys contains, g / l:
Сол на кислота100- 150Sol acid 100-150
Фторид натри 1,0 - 1,5Sodium fluoride 1.0 - 1.5
Перекись водорода20 - 30Hydrogen peroxide 20 - 30
Пример 1. Дл приготовлени травильного раствора в бак с мешалкой заливают техническую воду, после чего при перемешивании в бак подаетс расчетное количество сол ной кислоты (плотностью 1,19 г/см3). По окончании подачи кислоты в бак заливают расчетное количество 30%-ного раствора перекиси водорода - пергидрол , в последнюю очередь производ т загрузку расчетного количества Фтористого натри .Example 1. To prepare the pickling solution, technical water is poured into the tank with a mixer, after which, with stirring, the calculated amount of hydrochloric acid (density 1.19 g / cm3) is fed into the tank. At the end of the acid supply to the tank, the calculated amount of a 30% hydrogen peroxide solution — perhydrol is poured, and the estimated amount of sodium fluoride is last loaded.
Окалину удал ют со стружки титана и его сплавов, образующейс в процессе фрезеровани и токарной обработки слитков и других видов заготовок. Температура окислени составл ет 500 - 800°С. Максимальна толщина неотслаивающейс оксидной пленки 35 мкм.Scale is removed from chips of titanium and its alloys, formed during the milling and turning of ingots and other types of blanks. The oxidation temperature is 500-800 ° C. The maximum thickness of the non-peeling oxide film is 35 microns.
Некондиционную стружку сплава ТС-6 массой 50 г обезжиривают, промывают гор чей и холодной проточной водой и загружают в травильную ванну с температурой 55°С. Процесс провод т при посто нном перемешивании травильного раствора в течение 25 мин, после чего стружку извлекают., промывают гор чей водой с температурой 70°С, а затем проточной водой и сушат при 80°С.Non-conforming chips of a TC-6 alloy weighing 50 g are degreased, washed with hot and cold running water and loaded into a pickling bath with a temperature of 55 ° C. The process is carried out with constant stirring of the pickling solution for 25 minutes, after which the chips are removed, washed with hot water at a temperature of 70 ° C and then with running water, and dried at 80 ° C.
Составы опробованных растворов, а также результаты проведенных исследований представлены в таблице.The compositions of the tested solutions, as well as the results of the conducted studies are presented in the table.
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Анализ экспериментальных данных показывает , что полное удаление оксидной пленки происходит в растворах, имеющих концентрации, совпадающие с указанными пределами (примеры 6 - 8), очищенна от оксидной пленки стружка имеет блест щую серую поверхность.Analysis of the experimental data shows that the complete removal of the oxide film occurs in solutions with concentrations that coincide with the indicated limits (examples 6–8); the chips cleared from the oxide film have a shiny gray surface.
При увеличении содержани компонентов выше указанных пределов наблюдаетс перетравливание металла и его большие по- тери-с травильным раствором, при концентраци х компонентов ниже предельных происходит неполное удаление оксидной пленки, на поверхности стружки имеютс цвета побежалости,With an increase in the content of components above the indicated limits, metal etching and its large losses with etching solution are observed; at concentrations of components below the limiting, an oxide film is incompletely removed; on the surface of the chip there are colors of tinge
Таким образом, применение предлагаемого раствора позволит полностью удалитьThus, the application of the proposed solution will completely remove
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оксидные пленки с поверхности титановой стружки, снизив потери металла до 3,0 - 3,9% от массы стружки.oxide films from the surface of titanium chips, reducing metal losses to 3.0–3.9% of the chip weight.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894740425A SU1696583A1 (en) | 1989-07-13 | 1989-07-13 | Solution for removing oxide films from surface of titanium and its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894740425A SU1696583A1 (en) | 1989-07-13 | 1989-07-13 | Solution for removing oxide films from surface of titanium and its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1696583A1 true SU1696583A1 (en) | 1991-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894740425A SU1696583A1 (en) | 1989-07-13 | 1989-07-13 | Solution for removing oxide films from surface of titanium and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1696583A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894580A (en) * | 2015-06-25 | 2015-09-09 | 贵州航天精工制造有限公司 | Novel cleaning fluid and cleaning method for titanium alloy scale cinder |
-
1989
- 1989-07-13 SU SU894740425A patent/SU1696583A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Усова В.В., Плотникова Т.П., Кушакевич С.А. Травление титана и его сплавов. - М.Металлурги , 1984, с. 57 Евсеева З.К. Новое в травлении титановых сплавов. Производство титановых сплавов. - М:Металлурги , 1964, вып. 2, с. 211 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894580A (en) * | 2015-06-25 | 2015-09-09 | 贵州航天精工制造有限公司 | Novel cleaning fluid and cleaning method for titanium alloy scale cinder |
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