SU810415A1 - Flux for low-temperature soldering - Google Patents
Flux for low-temperature soldering Download PDFInfo
- Publication number
- SU810415A1 SU810415A1 SU782700048A SU2700048A SU810415A1 SU 810415 A1 SU810415 A1 SU 810415A1 SU 782700048 A SU782700048 A SU 782700048A SU 2700048 A SU2700048 A SU 2700048A SU 810415 A1 SU810415 A1 SU 810415A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flux
- low
- temperature soldering
- resin
- insulation
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3612—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with organic compounds as principal constituents
- B23K35/3618—Carboxylic acids or salts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
(54) ФЛЮС ДЛЯ НИЗКОТЕМПЕРАТУРНОЙ ПАЙКИ(54) FLUSH FOR LOW-TEMPERATURE SOLDERING
раций сн ти изол ции с проводов и их облуживани .walkie-talkies remove insulation from wires and their maintenance.
Поставленна цель достигаетс тем,что флюс в качестве полиэфирной смолы содержит поливинилхлоридную смолу и дополнительно нитрит натри при следующем соотношении компонентов, вес. %:This goal is achieved by the fact that the flux as a polyester resin contains a polyvinyl chloride resin and additionally sodium nitrite in the following ratio of components, weight. %:
Смола поливинилхлоридна 27 ,8-37,5Polyvinyl chloride resin 27, 8-37,5
Дибутилфталат65,5-72,2Dibutyl phthalate 65,5-72,2
Нитрит натри 0,15- 0,2Sodium Nitrite 0.15 - 0.2
от сухого остатка растворенной смолы.from the dry residue of the dissolved resin.
Состав флюса представл ет собой смесь указанных компонентов, где поливинилхлоридна смола вл етс растворителем изол ции, химически взаимодейству с изол цией провода, разрушает ее, образу сравнительно легкоплавкий шлак, взаимодействует с окисной пленкой на поверхности основного материала и припо , разрушает ее. Смола в жидком состо нии хорошо смачивает основной металл и припой иThe composition of the flux is a mixture of these components, where the polyvinyl chloride resin is the insulation solvent, chemically interacts with the wire insulation, destroys it, forming a relatively low-melting slag, interacts with the oxide film on the surface of the base material and solder it destroys it. The resin in the liquid state well wets the base metal and solder and
обладает также высокими антикоррозионными свойствами. В нормальных услови х она стабильна и пегигроскопична.It also has high anti-corrosion properties. Under normal conditions, it is stable and peregigroscopic.
Дибутилфталат - пластификатор и одновременно растворитель смолы, малолетучDibutyl phthalate is a plasticizer and resin solvent at the same time, it is very volatile.
(технологичен дл поддержани посто нного состава флюса), обладает сравнительно малой токсичностью. Нитрит натри - стабилизатор и ингибитор коррозии, вл етс малотоксичным веш,еством и добавл етс во флюс дл ослаблени коррозионного воздействи флюса.(technological to maintain a constant composition of the flux), has a relatively low toxicity. Sodium nitrite, a stabilizer and corrosion inhibitor, is a low toxicity substance and is added to the flux to reduce the corrosive effects of the flux.
Конкретные составы предлагаемого флюса (вес. %, от сухого остатка растворенной смолы) приведены в таблице.Specific compositions of the proposed flux (wt.%, From the dry residue of the dissolved resin) are given in the table.
Кажда смесь готовилась отдельно по следуюш,ей технологии. В стекл нную емкость с сухой поливинилхлоридной смолой добавл ли Дибутилфталат, тщательно перемешивали , дальнейшее растворение проводили на масл ной бане при 120-130°С в течение 30-40 мин.Each mixture was prepared separately for the following technology. Dibutyl phthalate was added to a glass container with dry PVC resin, mixed thoroughly, and further dissolution was carried out in an oil bath at 120-130 ° C for 30-40 minutes.
Приготовленные флюсы наносили на места пайки кистью или шпателем, после чего при прогреве 250-170°С происходило сн тие изол ции, и обслуживание поверхности провода.The prepared fluxes were applied to the soldering sites with a brush or trowel, after which, during the heating of 250–170 ° C, the insulation was removed, and the surface of the wire was serviced.
Предлагаемый флюс повыш ает качество па ных соединений и надежность изделий. Исключает утонение и обрыв проводов малых сечений (ОД67 см).The proposed flux improves the quality of solder joints and the reliability of products. Excludes thinning and breakage of wires of small sections (OD67 cm).
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782700048A SU810415A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low-temperature soldering |
| SU782700048K SU990460A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low temperature soldering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782700048A SU810415A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low-temperature soldering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU810415A1 true SU810415A1 (en) | 1981-03-07 |
Family
ID=20799958
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782700048K SU990460A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low temperature soldering |
| SU782700048A SU810415A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low-temperature soldering |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782700048K SU990460A1 (en) | 1978-12-25 | 1978-12-25 | Flux for low temperature soldering |
Country Status (1)
| Country | Link |
|---|---|
| SU (2) | SU990460A1 (en) |
-
1978
- 1978-12-25 SU SU782700048K patent/SU990460A1/en active
- 1978-12-25 SU SU782700048A patent/SU810415A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SU990460A1 (en) | 1983-01-23 |
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