DE898931C - Process for removing stoved lacquer layers based on polyamide, in particular from wires - Google Patents
Process for removing stoved lacquer layers based on polyamide, in particular from wiresInfo
- Publication number
- DE898931C DE898931C DES25453A DES0025453A DE898931C DE 898931 C DE898931 C DE 898931C DE S25453 A DES25453 A DE S25453A DE S0025453 A DES0025453 A DE S0025453A DE 898931 C DE898931 C DE 898931C
- Authority
- DE
- Germany
- Prior art keywords
- solvent
- boiling
- polyamide
- wires
- volatile
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/307—Other macromolecular compounds
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1287—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by means of a solvent
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zum Entfernen von Einbrenn-Lackschichten auf Basis von Polyamid, insbesondere von Drähten Polyamvde zeichnen sich durch eine gute Lösungsmittelbeständigkeit aus. Sie werden für die Verwendung in der Elektrotechnik, besonders als Drahtlack, meist mit härtbaren Kunstharzen, wie P'henolharzen, Melaminharzen oder Polyaryläthylenoxyd'harzen, kombiniert. Dadurch werden die Lackfilme chemisch noch widerstandsfähiger. Es bereitet daher große Schwierigkeiten, eingebrannte Filme, z. B. von Drähten, rasch und auf eine für den .damit Hantierenden und für,die übrige Isolierung unschädliche Art zu entfernen. Diese Abisolierung ist praktisch wichtig, um @z. B. ein glattes Löten von Lackdraht- oder -litzenenden zu ermöglichen.Process for removing stoved lacquer layers based on polyamide, Polyamide wires, in particular, are characterized by good resistance to solvents the end. They are used in electrical engineering, especially as wire enamel, mostly with curable synthetic resins such as phenolic resins, melamine resins or polyarylethylene oxide resins, combined. This makes the paint films even more chemically resistant. It prepares therefore great difficulty in recovering burned-in films, e.g. B. of wires, quickly and on a kind that is harmless for the person handling it and for the rest of the insulation to remove. This stripping is practically important to @z. B. a smooth soldering of enamelled wire or stranded wire ends.
Es ist bekannt, zum Abisolieren in solchen Fällen Gemische aggressiver Lösungsmittel, wie Alkohole, mit Säuren oder Basen oder Kresol zu verwenden oder niedere Fettsäuren, wie Ameisensäure oder Essigsäure. Diese Stoffe haben .den Nachteil, entweder physiologisch gefährlich zu sein oder nur langsam einzuwirken oder die Isolierung, besonders bei Litzen, in unkontrollierbarer Weise zu zerstören, indem Teile des Abbeizmittels durch Kapillarwirkung an den Lackdrähten entlang wandern und sich festsetzen.It is known to use more aggressive mixtures for stripping in such cases Solvents, such as alcohols, with acids or bases or cresol to use or lower fatty acids such as formic acid or acetic acid. These substances have the disadvantage either to be physiologically dangerous or to act slowly or the Insulation, especially in the case of strands, can be destroyed in an uncontrollable manner by Parts of the paint stripper migrate along the enameled wires due to capillary action and get stuck.
Erfindungsgemäß -werden diese Schwierigkeiten durch die aufeinanderfolgende Anwendung eines heißen hochsiedenden, physiologischund korrossionschemisch nicht aggressiven Lösungsmittels und eines leichtflüchtigen Nichtlösers umgangen. Das Lösungsmittel läßt man dabei in heißem Zustand kurz auf die .abzuisolierende Stelle einwirken, worauf anschließend etwaige Reste durch mehrmaliges Eintauchen in einen leichtflüchtigen Nichtlöser für die PolyamIdkombin.ationen abgespült werden und die Reste ,des leichtflüchtigen Nichtlösers verdunsten. Die Verdunstung kann dabei beispielsweise durch Gegenblasen von Luft beschleunigt werden.According to the invention, these difficulties are caused by the successive Use of a hot, high-boiling, physiological and corrosion-chemical not bypassed aggressive solvents and a volatile non-solvent. That Solvent is left in a hot state briefly on the point to be stripped act, whereupon any residues are subsequently dipped into a volatile non-solvent rinsed off for the polyamide combinations and the residues of the volatile non-solvent evaporate. The evaporation can be accelerated, for example, by counter-blowing air.
Für .die Zwecke .der Erfindung haben sich als hochsiedender Löser insbesondere Benzylalkohol und als niedrigsiedender Nichtlöser Benzol als besonders geeignet erwiesen. Statt .dieser Mittel können aber auch je nach den vorliegenden Be-,dingungen andere Stoffe für die Zwecke des erfindungsgemäßen Verfahrens Verwendung finden.For .the purposes of the invention have proven to be high-boiling solvents especially benzyl alcohol and, as a low-boiling non-solvent, benzene as special proved suitable. Instead of these means, however, depending on the present Conditions other substances for the purposes of the method according to the invention use Find.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES25453A DE898931C (en) | 1951-11-02 | 1951-11-02 | Process for removing stoved lacquer layers based on polyamide, in particular from wires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES25453A DE898931C (en) | 1951-11-02 | 1951-11-02 | Process for removing stoved lacquer layers based on polyamide, in particular from wires |
Publications (1)
Publication Number | Publication Date |
---|---|
DE898931C true DE898931C (en) | 1953-12-07 |
Family
ID=7478356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES25453A Expired DE898931C (en) | 1951-11-02 | 1951-11-02 | Process for removing stoved lacquer layers based on polyamide, in particular from wires |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE898931C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1135537B (en) * | 1960-10-13 | 1962-08-30 | Siemens Ag | Method and device for stripping wires |
DE102009000547A1 (en) * | 2009-02-02 | 2010-10-14 | Tyco Electronics Amp Gmbh | Method for stripping a cable device |
WO2014085754A1 (en) * | 2012-11-29 | 2014-06-05 | Abb Technology Ltd. | Stripping structure and method for removing enamel insulation from lead ends |
-
1951
- 1951-11-02 DE DES25453A patent/DE898931C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1135537B (en) * | 1960-10-13 | 1962-08-30 | Siemens Ag | Method and device for stripping wires |
DE102009000547A1 (en) * | 2009-02-02 | 2010-10-14 | Tyco Electronics Amp Gmbh | Method for stripping a cable device |
DE102009000547B4 (en) * | 2009-02-02 | 2018-11-15 | Te Connectivity Germany Gmbh | Method for stripping a cable device |
WO2014085754A1 (en) * | 2012-11-29 | 2014-06-05 | Abb Technology Ltd. | Stripping structure and method for removing enamel insulation from lead ends |
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