SU151552A1 - Chemical solution for tinning copper and bronze products for brazing - Google Patents

Chemical solution for tinning copper and bronze products for brazing

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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
Application number
SU755931A
Other languages
Russian (ru)
Inventor
Г.А. Кондратович
Original Assignee
Г.А. Кондратович
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Г.А. Кондратович filed Critical Г.А. Кондратович
Priority to SU755931A priority Critical patent/SU151552A1/en
Application granted granted Critical
Publication of SU151552A1 publication Critical patent/SU151552A1/en

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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.

SU755931A 1961-12-15 1961-12-15 Chemical solution for tinning copper and bronze products for brazing SU151552A1 (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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