SU302402A1 - METHOD OF ELECTROCHEMICAL OXIDATION OF PRODUCTS FROM COPPER AND ITS ALLOYS - Google Patents
METHOD OF ELECTROCHEMICAL OXIDATION OF PRODUCTS FROM COPPER AND ITS ALLOYSInfo
- Publication number
- SU302402A1 SU302402A1 SU1315190A SU1315190A SU302402A1 SU 302402 A1 SU302402 A1 SU 302402A1 SU 1315190 A SU1315190 A SU 1315190A SU 1315190 A SU1315190 A SU 1315190A SU 302402 A1 SU302402 A1 SU 302402A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- copper
- alloys
- products
- electrochemical oxidation
- selenic acid
- Prior art date
Links
- 238000006056 electrooxidation reaction Methods 0.000 title description 4
- 229910045601 alloy Inorganic materials 0.000 title description 3
- 239000000956 alloy Substances 0.000 title description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N Selenic acid Chemical compound O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Description
Изобретение относитс к области электрохимической обработки, в частности к электрохимическому окислению меди и ее силавов.The invention relates to the field of electrochemical treatment, in particular to the electrochemical oxidation of copper and its metals.
Известен способ электрохимического окислени изделий из меди и ее сплавов в электролите , содержащем едкий натр. Однако окисные .пленки, полученные по известному способу , имеют низкую коррозио1нную устойчивость.The known method of electrochemical oxidation of products from copper and its alloys in an electrolyte containing caustic soda. However, oxide films obtained by a known method have low corrosion resistance.
Предложенный способ отличаетс от известного тем, что с целью повышени коррозионной стойкости и улучшени качества покрыти в электролит ввод т селеновую кислоту при следуюшем соотношении компонентов, г/л: Едкий натр150-400The proposed method differs from that in order to increase the corrosion resistance and improve the quality of the coating, selenic acid is introduced into the electrolyte at the following ratio of components, g / l: Caustic 150-400
Селенова кислота0,1 -10Selenic acid 0.1 -10
Процесс ведут пр« 40-90°С и анодной плотности тока 0,2-20 а/дм.The process is carried out at 40–90 ° C and anodic current density of 0.2–20 a / dm.
В качестве селеновой кислоты можно использовать ее соли. Оксидна пленка, полученна по предложенному способу, толш,ииой 10-15 мк глубокого черного цвета - коррозионноустойчива в атмосфере с нормальной влажностью.As selenic acid, its salts can be used. The oxide film obtained by the proposed method, thick, and 10–15 µm deep black color is corrosion resistant in an atmosphere with normal humidity.
Предмет изобретени Subject invention
Способ электрохимического окислени пздеЛИЙ из меди и ее сплавов в электролите на основе едкого натра, отличающийс тем, что, с целью повышени коррозионной стойкости и улучшени качества покрыти , в электролит ввод т селеновую кислоту при следуюшем соотношении компонентов, г/л:The method of electrochemical oxidation of copper and its alloys in an electrolyte based on caustic soda, characterized in that, in order to increase the corrosion resistance and improve the quality of the coating, selenic acid is introduced into the electrolyte at the following ratio of components, g / l:
Едкий натр150-400Caustic soda 150-400
Селенова кислота0,1 -10Selenic acid 0.1 -10
и Процесс ведут при 40-90°С, анодной плотности тока 0,2-20 а/дм-.and the process is carried out at 40-90 ° C, anodic current density of 0.2-20 a / dm-.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU302402A1 true SU302402A1 (en) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4042468A (en) | Process for electrolytically coloring aluminum and aluminum alloys | |
| US4045599A (en) | Low temperature sealing of anodized aluminum | |
| US3878056A (en) | Process for electrolytic coloring of the anodic oxide film on a aluminum or aluminum base alloys | |
| SU302402A1 (en) | METHOD OF ELECTROCHEMICAL OXIDATION OF PRODUCTS FROM COPPER AND ITS ALLOYS | |
| JPS5916994A (en) | Formation of colored protective film on surface of aluminum material | |
| SU278342A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF PALLADIUM — SILVER ALLOY | |
| JPS63223199A (en) | Method for electrolytically-coloring aluminum material | |
| SU303788A1 (en) | W LIBRARY | |
| SU179159A1 (en) | METHOD OF ELECTROULITIC ZINCTION | |
| SU377431A1 (en) | ||
| SU268836A1 (en) | METHOD OF ELECTROLYTIC ZINC IN CYANIST ELECTROLYTE | |
| SU312895A1 (en) | ||
| SU310950A1 (en) | METHOD OF ELECTROCHEMICAL DEPOSITION OF SELENIUM ALLOY | |
| SU195121A1 (en) | INSOLUBLE ANODE FOR ELECTROLYSIS OF AQUEOUS SOLUTIONS | |
| SU189155A1 (en) | METHOD OF ELECTROLYTIC PREPARATION OF HIGHLY DIFFERENT MAGNETIC COBALT POWDER | |
| JP2001329397A (en) | Coloration method for aluminum and aluminum alloy | |
| JPS63259095A (en) | Ruthenium plating solution | |
| SU1413157A1 (en) | Titanium-plating electrolyte | |
| SU292299A1 (en) | ||
| SU285437A1 (en) | ||
| SU161604A1 (en) | ||
| JPS5928636B2 (en) | Method of forming a colored protective film on the surface of aluminum materials | |
| SU305210A1 (en) | METHOD OF ANODIZING BERILLION AND ITS ALLOYS | |
| CN114318315A (en) | Preparation solution of zinc-rich trivalent chromium conversion film and preparation method of conversion film | |
| SU324305A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF NICKEL-IRON TYPE PERMAL ALLOY |