SU372251A1 - WASHING AZEOTROPNAYA COMPOSITION - Google Patents
WASHING AZEOTROPNAYA COMPOSITIONInfo
- Publication number
- SU372251A1 SU372251A1 SU1682549A SU1682549A SU372251A1 SU 372251 A1 SU372251 A1 SU 372251A1 SU 1682549 A SU1682549 A SU 1682549A SU 1682549 A SU1682549 A SU 1682549A SU 372251 A1 SU372251 A1 SU 372251A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- composition
- washing
- azeotropnaya
- cleaning
- trifluorotrichloroethane
- Prior art date
Links
Description
1one
Изобретение относитс к технике очистки различных изделий, в частности элементов ipaдиоэлектронной аппаратуры (в том числе - плат печатного монтажа), от жировых, механических загр знений, остатков канифольных флюсов и т. д.The invention relates to a technique for cleaning various products, in particular, elements of radio electronic equipment (including printed circuit boards), from fatty, mechanical contaminants, rosin flux residues, etc.
Известна азеотропна композици , содержаща 1,1,2-трифтортрихлорэтан и изопроп ловый спирт, недостаточно активна по отношению к флюсовым загр знени м. Кроме того , после ее использовани остаютс белые отложени .The azeotropic composition containing 1,1,2-trifluorotrichloroethane and isopropyl alcohol is not sufficiently active with respect to flux contaminants. In addition, white deposits remain after its use.
Указанные недостатки моющей азеотропной композиции устранены благодар тому, что в ее состав введен тетрафтордибромэтан, а компоненты вз ты в следующем соотношении (в об. %):These drawbacks of the azeotropic detergent composition are eliminated due to the fact that tetrafluorodibromoethane is added to its composition, and the components are taken in the following ratio (in vol.%):
1,1,2-Трифтортрихлорэтан 56,5-61,5 Изопропиловый спирт3-41,1,2-Trifluorotrichloroethane 56,5-61,5 Isopropyl alcohol3-4
Тетрафтордибромэтан35-40Tetrafluorodibromoethane35-40
Предлагаема моюща композици высокоэффективна , имеет узкую температурную область кипени (45-46°С), может быть использована при различных способах очистки (химической , ультразвуковой и т. д.). Регенерацию этой азеотропной композиции можно проводить при непрерывном процессе очистки.The proposed detergent composition is highly efficient, has a narrow temperature boiling range (45-46 ° C), and can be used with various cleaning methods (chemical, ultrasonic, etc.). The regeneration of this azeotropic composition can be carried out with a continuous purification process.
Предмет изобретени Subject invention
Моюща азеотропна композици дл очистки элементов радиоэлектронной аппаратуры, в частности плат печатного монтажа, от канифольных флюсов, жировых и механических загр знений, содержаща 1,1,2-трифтортрихлорэтан и Изопропиловый спирт, отличающа с тем, что, с целью повышени качества очистки от канифольных флюсов, она дополнительно содержит тетрафтордибромэтан Пр-и следующем соотношени компонентов (в об.Washing azeotropic composition for cleaning electronic components, in particular printed circuit boards, from rosin fluxes, fatty and mechanical contaminants, containing 1,1,2-trifluorotrichloroethane and Isopropyl alcohol, so as to improve the quality of cleaning from rosins fluxes, it additionally contains tetrafluoridibromoethane Pr-and the following ratio of components (in vol.
%):%):
1,1,2-Трифтортрихлорэтан56,5-61,5 Изопропиловый спирт3,0-4,01,1,2-Trifluorotrichloroethane56,5-61,5 Isopropyl alcohol 3,0-4,0
Тетрафтордибромэтан35-40Tetrafluorodibromoethane35-40
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1682549A SU372251A1 (en) | 1971-07-05 | 1971-07-05 | WASHING AZEOTROPNAYA COMPOSITION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1682549A SU372251A1 (en) | 1971-07-05 | 1971-07-05 | WASHING AZEOTROPNAYA COMPOSITION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU372251A1 true SU372251A1 (en) | 1973-03-01 |
Family
ID=20483321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1682549A SU372251A1 (en) | 1971-07-05 | 1971-07-05 | WASHING AZEOTROPNAYA COMPOSITION |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU372251A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2533357A1 (en) * | 1974-07-25 | 1976-02-05 | Du Pont | AZEOTROPIC COMPOSITION |
-
1971
- 1971-07-05 SU SU1682549A patent/SU372251A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2533357A1 (en) * | 1974-07-25 | 1976-02-05 | Du Pont | AZEOTROPIC COMPOSITION |
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