SU432182A1 - COMPOSITION FOR CLEANING THE SURFACE OF PCB PRINTING BOARDS - Google Patents
COMPOSITION FOR CLEANING THE SURFACE OF PCB PRINTING BOARDSInfo
- Publication number
- SU432182A1 SU432182A1 SU1498871A SU1498871A SU432182A1 SU 432182 A1 SU432182 A1 SU 432182A1 SU 1498871 A SU1498871 A SU 1498871A SU 1498871 A SU1498871 A SU 1498871A SU 432182 A1 SU432182 A1 SU 432182A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cleaning
- composition
- pcb printing
- rosin
- printing boards
- Prior art date
Links
Landscapes
- Detergent Compositions (AREA)
Description
1one
Изобретение относитс IK составам, используемы .м :В радио- и элактрОНной промышленности дл очистки изделий, иапример плат печатного монтажа, от канифольных флюсов и других загр знений, а также копироваль«ых успройств от жиров и масел.The invention relates to IK compositions used in the m industry: in the radio and elaptic industry for cleaning products, such as printed wiring boards, from rosin fluxes and other contaminants, as well as copying oils and fats.
Известен состав дл очистки поверхности изделий от смол ных .масл ных и жировых загр знений, содержащий 1,1,2-трифтор-1,2, 2-трихлорэтан, хлористый метилен и метиловый спирт.A known composition for cleaning the surface of products from resinous oily and fatty contaminants, containing 1,1,2-trifluoro-1,2, 2-trichloroethane, methylene chloride and methyl alcohol.
Однако этот состав разрушает лшогие защитные пок,рыти и маркировочные злаки электронных элементов, тскксичен, оставл ет на детал х белый налет в силу его недостаточной раствор ющей способности по отношению к канифоли. По предлагаемому способу рекомендуетс вводить ъ качестве алифатического спирта изопропиловый сиирт при следующем соотношении компонентов (об. %): 1,1,2-Трихлор1 ,2,2-трифторен67-86However, this compound destroys the extreme protective coatings, digging and marking grains of electronic elements, which are toxic, leaving a white coating on the parts due to its insufficient dissolving ability with respect to rosin. According to the proposed method, it is recommended to introduce isopropyl alcohol in the quality of an aliphatic alcohol in the following ratio of components (% by volume): 1,1,2-Trichlor1, 2,2-trifluoro 67-86
Изопропиловый спирт2,5-0,5Isopropyl alcohol2.5-0.5
Хлористый метилен30,5-13,5Methylene Chloride30.5-13.5
Хлористый метилен поддерживает активность состава к канифольным флюсам. Изопроп .иловый спирт повышает растворимость канифоли. Очистку провод т окунанием плат печатного монтажа в моющий раствор на 90-120 сек. Качество очистки определ ют качественной реакцией па канифоль.Methylene chloride maintains the activity of the composition to rosin fluxes. Isopropyl alcohol increases the solubility of rosin. Cleaning is carried out by dipping the printed circuit boards into the cleaning solution for 90-120 seconds. The quality of cleaning is determined by the qualitative reaction of the PA rosin.
Предлагаемый состав негорюч, взрьивобезопасен , обладает хорошей селективностью по отношению к лакокрасочным покрыти м и маркировке навесных радиоэлементов, хорошо раствор при этом смол ные кислоты, вход щие в состав канифольных флюсов.The proposed composition is non-flammable, back-safe, has good selectivity with respect to paint coatings and labeling of mounted radio elements, and the resin acids included in the composition of rosin fluxes are good solution.
Предмет изобретени Subject invention
Состав дл очистки поверхности плат печатного монтажа, содержащий 1,1,2-трихлор1 ,2,2-трифторэтан, хлористый метилен и ал,ифатический спирт, отличающийс тем, что, с целью повышени эффективности удалени канифоли и улучшени селективности состава, в него введен в качестве алифатического спирта изопропиловый спирт при следующем соотнощении компонентов (об. %). 1,1.2-Трифтор1 ,2,2,-трихлорэтан67-86A composition for cleaning the surface of printed circuit boards containing 1,1,2-trichlor1, 2,2-trifluoroethane, methylene chloride and al, ifatic alcohol, characterized in that, in order to increase the removal efficiency of rosin and improve the selectivity of the composition, as an aliphatic alcohol, isopropyl alcohol with the following ratio of components (vol.%). 1,1.2-Triftor1, 2,2, -trichloroethane67-86
Хлористый метилен30,5-13,5Methylene Chloride30.5-13.5
Изонроииловый спирт2,5-0,5Isonroyl alcohol2.5-0.5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1498871A SU432182A1 (en) | 1970-12-14 | 1970-12-14 | COMPOSITION FOR CLEANING THE SURFACE OF PCB PRINTING BOARDS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1498871A SU432182A1 (en) | 1970-12-14 | 1970-12-14 | COMPOSITION FOR CLEANING THE SURFACE OF PCB PRINTING BOARDS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU432182A1 true SU432182A1 (en) | 1974-06-15 |
Family
ID=20460999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1498871A SU432182A1 (en) | 1970-12-14 | 1970-12-14 | COMPOSITION FOR CLEANING THE SURFACE OF PCB PRINTING BOARDS |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU432182A1 (en) |
-
1970
- 1970-12-14 SU SU1498871A patent/SU432182A1/en active
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