SU337435A1 - THE METHOD OF ELECTROLYTIC SILVERBACKING ISSUES — .p .. ^. ,, _ v. * "; W4..ov .. ': ... /. J,; - j / \ flPD? Ash ^ :::::.:, . :: k? ShaLg? s:,.: nA - Google Patents
THE METHOD OF ELECTROLYTIC SILVERBACKING ISSUES — .p .. ^. ,, _ v. * "; W4..ov .. ': ... /. J,; - j / \ flPD? Ash ^ :::::.:, . :: k? ShaLg? s:,.: nAInfo
- Publication number
- SU337435A1 SU337435A1 SU1442570A SU1442570A SU337435A1 SU 337435 A1 SU337435 A1 SU 337435A1 SU 1442570 A SU1442570 A SU 1442570A SU 1442570 A SU1442570 A SU 1442570A SU 337435 A1 SU337435 A1 SU 337435A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrolytic
- silverbacking
- shalg
- flpd
- ash
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 description 7
- SQGYOTSLMSWVJD-UHFFFAOYSA-N Silver nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 4
- 235000011130 ammonium sulphate Nutrition 0.000 description 4
- 239000001166 ammonium sulphate Substances 0.000 description 3
- XKUUMWKWUZRRPD-UHFFFAOYSA-N heptan-2-amine;sulfuric acid Chemical compound [O-]S([O-])(=O)=O.CCCCCC(C)[NH3+].CCCCCC(C)[NH3+] XKUUMWKWUZRRPD-UHFFFAOYSA-N 0.000 description 3
- 229910001961 silver nitrate Inorganic materials 0.000 description 3
- 229940048084 Pyrophosphate Drugs 0.000 description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-J Pyrophosphate Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M Sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J Tetrasodium pyrophosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 235000011180 diphosphates Nutrition 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N Ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- BXNHTSHTPBPRFX-UHFFFAOYSA-M Potassium nitrite Chemical compound [K+].[O-]N=O BXNHTSHTPBPRFX-UHFFFAOYSA-M 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- KDFQYGBJUYYWDJ-UHFFFAOYSA-N azane;sodium Chemical compound N.[Na] KDFQYGBJUYYWDJ-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- 229940064218 potassium nitrite Drugs 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
Description
Изобретение относитс к области гальванических иокрытий.This invention relates to the field of electroplating.
Известен снособ электролитического осаждени серебра из электролита, содержащего азотнокислое серебро, пирофосфорнокислый натрий, аммиак.A known electrolytic silver precipitation method from an electrolyte containing silver nitrate, sodium pyrophosphate, and ammonia is known.
Однако но известному способу происходит пассиваци серебр ных анодов.However, however, a passivation of silver anodes occurs by a known method.
Цель изобретени - улучшение качества покрыти и нредотпращенне пассивации анодов . Дл этого в электролит ввод т сернокислый аммоннй, ннтрит кали при следующем соотиошении комнонентов в г/л:The purpose of the invention is to improve the quality of the coating and the poorly developed passivation of the anodes. For this purpose, ammonium sulphate and potassium nitrite are introduced into the electrolyte at the following component ratio in g / l:
Азотнокислое серебро20-30Silver Nitrate 20-30
ПирофосфорнокислыйPyrophosphate
натрий25-45sodium25-45
Сернокислый аммоний40-70 Нитрит натри 45-75 Аммиак (25%-ныйAmmonium sulphate 40-70 Sodium nitrite 45-75 Ammonia (25%
раствор)60-100 .ил/л,solution) 60-100. il / l,
и процесс ведут нри комиатпой темнературе, рИ 9,4-9,8, плотности тока 0,1-0,8 а/дм-.and the process is carried out by a comatipa teperaure, pI 9.4-9.8, current density 0.1-0.8 a / dm-.
Перед гальваническим серебрением провод т предварительное серебрение -в любом из известных электролитов с низкой концентрацией серебра.Prior to electroplating, silvering is carried out in any of the known electrolytes with a low concentration of silver.
вают вместе и добавл ют аммиак и остальные комноненты. Электролит не требует проработки и после приготовлени готов к эксплуатации .ammonia and the rest of the components are added together. The electrolyte does not require elaboration and is ready for operation after preparation.
Корректирование рН электролита производ т периодическим добавлением аммиака.The pH adjustment of the electrolyte is made by periodic addition of ammonia.
По предлол-сенному способу на издели х, например, из алюмини и его сплавов осаждают свет;1ыо плотные блест щие осадки серебра .According to the predlozhenny method on the products, for example, from aluminum and its alloys light is deposited; 1yo dense brilliant deposits of silver.
Предмет изобретени Subject invention
Способ электролитического серебрени изделий из электролита, содержащего азотнокислое серебро, пирофосфорнокислый натрий, аммиак, отличающийс тем, что, с целью улучщени качества покрыти и предотвращени пассивации анодов, в электролит ввод т сернокислый аммоннй, нитрит кали при следующем соотнощении компонентов, г/л: Азотнокислое серебро 20-30 ПирофосфорнокислыйThe method of electrolytic silvering of products from an electrolyte containing silver nitrate, sodium pyrophosphate, ammonia, characterized in that, in order to improve coating quality and prevent anodes from being passivated, ammonium sulphate is added to the electrolyte at the following component ratio, g / l: silver 20-30 pyrophosphate
натрий25-45sodium25-45
Сернокислый аммоНИИ40-70Ammonium sulfate NII40-70
Питрит натрн 45-75Pitrite natrn 45-75
Аммиак (25%-ныйAmmonia (25%)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU337435A1 true SU337435A1 (en) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU337435A1 (en) | THE METHOD OF ELECTROLYTIC SILVERBACKING ISSUES — .p .. ^. ,, _ v. * "; W4..ov .. ': ... /. J,; - j / \ flPD? Ash ^ :::::.:, . :: k? ShaLg? s:,.: nA | |
| SU274602A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF A SILVER BASED ALLOY | |
| SU166868A1 (en) | METHOD OF ELECTROLYTIC CAMPERATION | |
| JPS6056234B2 (en) | Manufacturing method of active anode | |
| SU270428A1 (en) | METHOD OF ELECTROLYTIC SILVER | |
| SU169968A1 (en) | METHOD OF OBTAINING ELECTROLYTIC CADMIUM FROM CYANIDE ELECTROLYTES | |
| SU312893A1 (en) | ||
| JPS6047914B2 (en) | Granular nickel plating method | |
| SU178258A1 (en) | ||
| SU285435A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF COBALT | |
| SU161604A1 (en) | ||
| SU184089A1 (en) | METHOD OF ELECTROLYTIC CAMPERATION | |
| SU254988A1 (en) | METHOD OF ELECTROLYTIC PALLADING | |
| SU152739A1 (en) | ||
| SU411159A1 (en) | ||
| SU210599A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF NICKEL | |
| SU802406A1 (en) | Electrolyte for cadmium-zinc alloy plating precipitation | |
| SU281986A1 (en) | METHOD OF ELECTROLYTIC NICKELING | |
| SU357268A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF ALLOYSOLATION | |
| SU378545A1 (en) | SECONDARY | |
| SU262574A1 (en) | METHOD OF ELECTROLYTIC SILVER | |
| SU357267A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF THE ALLOYS | |
| SU234810A1 (en) | ELECTROLYTE FOR NICKELING | |
| SU377434A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF THE ALLOY | |
| SU732412A1 (en) | Method of platinum-plating of metals |