SU113775A1 - Method of chemical etching of stainless steels - Google Patents
Method of chemical etching of stainless steelsInfo
- Publication number
- SU113775A1 SU113775A1 SU590499A SU590499A SU113775A1 SU 113775 A1 SU113775 A1 SU 113775A1 SU 590499 A SU590499 A SU 590499A SU 590499 A SU590499 A SU 590499A SU 113775 A1 SU113775 A1 SU 113775A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stainless steels
- chemical etching
- etching
- product
- hydrogen peroxide
- Prior art date
Links
Landscapes
- ing And Chemical Polishing (AREA)
Description
Изобретение относитс к способам химического травлени нержавеющих сталей в растворах неорганических кислот.This invention relates to methods of chemical etching of stainless steels in solutions of inorganic acids.
Известные способы предусматривают механическое удаление продуктов травлени с поверхности издели , что св зано с большими затратами труда и времени и не всегда дает хорошее качество очистки, например , при обработке внутренних поверхностей изделий.The known methods provide for the mechanical removal of etching products from the surface of the product, which is associated with high labor and time costs and does not always give good quality cleaning, for example, when processing the internal surfaces of products.
Дл устранени указанных недостатков предлагаетс , согласно изобретению , изделие после травлени , без промывки водой обрабатывать раствором перекиси водорода. Рекомендуетс носле травлени в смеси минеральных кислот известных составов , например, 35% сол ной, 10% азотной и 3% серной кислот и 57% воды без промежуточной промывки издели водой обрабатывать протравленные поверхности 15-20% .ным водным раствором перекиси водорода с выдержкой до полного удалени шлама и окалины.In order to eliminate the above disadvantages, according to the invention, the product after etching, without washing with water, is treated with a solution of hydrogen peroxide. It is recommended that etching in a mixture of mineral acids of known compositions, for example, 35% hydrochloric, 10% nitric and 3% sulfuric acids and 57% water without intermediate washing the product with water, treat the etched surfaces with a 15-20% aqueous solution of hydrogen peroxide with a holding time complete removal of sludge and scale.
Удаление продуктов травлени происходит в результате бурной реакции разложени перекиси водорода в присутствии шлама. Параллельно с удалением шлама и окалины происходит пассиваци поверхности издели . Описанный способ травлени обеспечивает высокую производительность и хорошее качество протравленных поверхностей изделий из нержавеюш;их сталей.Removal of etching products occurs as a result of the violent reaction of decomposition of hydrogen peroxide in the presence of sludge. In parallel with the removal of sludge and scale, the surface of the product is passivated. The etching method described provides high performance and good quality of the etched surfaces of stainless steel products, and their steels.
П р е д iv е т изобретени P rede iv of the invention
Способ химического травлени нержавеющих сталей в растворах неорганических кислот, отличающ и и с тем, что, с целью удалени шлама и окислов с протравленной поверхности, издели без промывки водой носле травлени обрабатывают раствором перекиси водорода .The method of chemical etching of stainless steels in solutions of inorganic acids, is also distinguished by the fact that, in order to remove sludge and oxides from the etched surface, the product is treated with hydrogen peroxide solution without washing with water during etching.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU590499A SU113775A1 (en) | 1958-01-24 | 1958-01-24 | Method of chemical etching of stainless steels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU590499A SU113775A1 (en) | 1958-01-24 | 1958-01-24 | Method of chemical etching of stainless steels |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782655043A Addition SU706577A2 (en) | 1978-07-31 | 1978-07-31 | Electric-hydraulic drive |
SU782653542A Addition SU720201A2 (en) | 1978-07-31 | 1978-07-31 | Electrohydraulic drive |
Publications (1)
Publication Number | Publication Date |
---|---|
SU113775A1 true SU113775A1 (en) | 1958-11-30 |
Family
ID=48386200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU590499A SU113775A1 (en) | 1958-01-24 | 1958-01-24 | Method of chemical etching of stainless steels |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU113775A1 (en) |
-
1958
- 1958-01-24 SU SU590499A patent/SU113775A1/en active
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