SU151552A1 - Chemical solution for tinning copper and bronze products for brazing - Google Patents
Chemical solution for tinning copper and bronze products for brazingInfo
- Publication number
- SU151552A1 SU151552A1 SU755931A SU755931A SU151552A1 SU 151552 A1 SU151552 A1 SU 151552A1 SU 755931 A SU755931 A SU 755931A SU 755931 A SU755931 A SU 755931A SU 151552 A1 SU151552 A1 SU 151552A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- brazing
- chemical solution
- tinning
- bronze
- solution
- Prior art date
Links
Description
Известны растворы дл химического олов нировани изделий из меди и бронзы гаод пайку, содержащие двуххлористое олово и серную кислоту.Chemical solutions are known for the chemical tinning of copper and bronze products for soldering, containing tin dichloride and sulfuric acid.
При использовании известных растворов олов нирование производилось гор чим или гальваническим способом.When using the known solutions of tin, it was carried out by hot or galvanic method.
Особенностью описываемого раствора вл етс то, что в него введено (на один литр) раствора тиомочевины в количестве 40-45 г/л, двуххлористого олова-8 г/л серной кислоты (уд. в. 1,84)-30,40 г/л.The peculiarity of the described solution is that it contains (for one liter) a solution of thiourea in the amount of 40-45 g / l, tin dichloride-8 g / l of sulfuric acid (sp. 1.84) -30.40 g / l.
Такой раствор обеспечивает проведение олов пировани при 1-юмнатной температуре за счет химического восстановлени олова из раствора его соли без применени электрического тока.Such a solution provides for the holding of tin tins at 1 ohm temperature due to the chemical reduction of tin from the solution of its salt without the use of electric current.
Предварительно поверхность издели из меди и бронзы обезжиривают , промывают в гор чей и холодной воде, трав т и декатируют п 10-15%-ном растворе сол ной кислоты в течение 15-20 сек, затем подвергают олов пированию при перемешивании в течение 15-30 мин при температуре 18-25° в растворе, содержащем двуххлорпстое олово 8 г/л, тиомочевину 40-45 , серную кислоту (уд. в. 1,84) 30-40 г/л. Соотношение -покрываемой поверхности (в с,и) и объема раств,ора (в cvj3) равно 1 : 6.The surface of the product from copper and bronze is degreased, washed in hot and cold water, etched and decanted with a 10-15% hydrochloric acid solution for 15-20 seconds, then subjected to tinning with stirring for 15-30 min at a temperature of 18-25 ° in a solution containing dichloro tin 8 g / l, thiourea 40-45, sulfuric acid (beats in. 1.84) 30-40 g / l. The ratio of the -covered surface (in s, and) and the volume of the solution, ora (in cvj3) is 1: 6.
Предмет изобретени Subject invention
Раствор дл химического олов нировани изделий из медп и бронзы под пайку, содержаш.ий двуххлористое олово и серную кислоту, отличаю ш, и и с тем, что, € целью олов нировани изделий при комнат b 151552-2ной температуре, в. него введена (на один л.нтр раствора) тиомочевина в количестве 40-45 г/л, а двуххлористое олово и серна кислота вз ты соответственно в следующем количестве: двуххлористое олово - 8 г/л; серна кислота (уд. в. 1,84)-30-40 г/л.The solution for chemical tinning of medical and bronze products for soldering, containing tin dichloride and sulfuric acid, is also different from the fact that the aim of tinning products is at room temperature 151552-2 c. it was injected (for one liter of solution) thiourea in the amount of 40-45 g / l, and tin dichloride and sulfuric acid were taken, respectively, in the following amounts: tin dichloride - 8 g / l; sulfuric acid (spd. 1.84) -30-40 g / l.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU755931A SU151552A1 (en) | 1961-12-15 | 1961-12-15 | Chemical solution for tinning copper and bronze products for brazing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU755931A SU151552A1 (en) | 1961-12-15 | 1961-12-15 | Chemical solution for tinning copper and bronze products for brazing |
Publications (1)
Publication Number | Publication Date |
---|---|
SU151552A1 true SU151552A1 (en) | 1962-11-30 |
Family
ID=48306256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU755931A SU151552A1 (en) | 1961-12-15 | 1961-12-15 | Chemical solution for tinning copper and bronze products for brazing |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU151552A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027055A (en) * | 1973-07-24 | 1977-05-31 | Photocircuits Division Of Kollmorgan Corporation | Process of tin plating by immersion |
-
1961
- 1961-12-15 SU SU755931A patent/SU151552A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027055A (en) * | 1973-07-24 | 1977-05-31 | Photocircuits Division Of Kollmorgan Corporation | Process of tin plating by immersion |
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