NO144117B - DEVICE FOR AA MARKETING THE SUPPORT PLATE FOR A GRANATE CASTLE. - Google Patents

DEVICE FOR AA MARKETING THE SUPPORT PLATE FOR A GRANATE CASTLE. Download PDF

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Publication number
NO144117B
NO144117B NO772134A NO772134A NO144117B NO 144117 B NO144117 B NO 144117B NO 772134 A NO772134 A NO 772134A NO 772134 A NO772134 A NO 772134A NO 144117 B NO144117 B NO 144117B
Authority
NO
Norway
Prior art keywords
synthetic resin
resin
binder
tape material
impregnation
Prior art date
Application number
NO772134A
Other languages
Norwegian (no)
Other versions
NO144117C (en
NO772134L (en
Inventor
Boerje Johansson
Torbjoern Pramskog
Ulf Edlund
Original Assignee
Foerenade Fabriksverken
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 Foerenade Fabriksverken filed Critical Foerenade Fabriksverken
Publication of NO772134L publication Critical patent/NO772134L/en
Publication of NO144117B publication Critical patent/NO144117B/en
Publication of NO144117C publication Critical patent/NO144117C/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00Practice or training ammunition
    • F42B8/02Cartridges
    • F42B8/04Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/52Base plates for gun mountings
    • F41A23/54Base plates for gun mountings for mortars
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41FAPPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F1/00Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
    • F41F1/06Mortars

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Solid-Fuel Combustion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Tents Or Canopies (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nozzles (AREA)

Description

Fremgangsmåte til isolering av elektriske ledere eller lederbundter. Procedure for insulating electrical conductors or conductor bundles.

Oppfinnelsen angår isolering av elektriske ledere eller lederbunter som dem der The invention relates to the insulation of electrical conductors or conductor bundles such as those there

fremfor alt anvendes ved høyspennings-maskiner. above all used in high-voltage machines.

Der er kjent forskjellige fremgangs-måter til dette formål. Man har f. eks. Various methods are known for this purpose. One has e.g.

omviklet de elektriske lederbunter med wrapped the electrical conductor bundles with

tørt båndmateriale i flere lag og siden fylt dry strip material in several layers and then filled

ut de derved fremkomne og gjenværende out the resulting and remaining ones

hulrom med lakk inneholdende oppløs-ningsmiddel, idet man dyppet lederbuntene cavity with varnish containing solvent, while dipping the conductor bundles

i lakkbad i passende dimensjonerte trau. in paint baths in suitably sized troughs.

Efter at der er fremkommet brukbare harpikser som er frie for oppløsningsmiddel og After usable resins have emerged which are free of solvent and

er tilstrekkelig flytende ved normal eller is sufficiently liquid at normal or

moderat forhøyet temperatur, har det også moderately elevated temperature, has it too

vært foreslått ved den nevnte fremgangsmåte å anvende oppløsningsmiddel-frie been proposed by the aforementioned method to use solvent-free

harpikser istedenfor lakkene. I denne for-bindelse kan der arbeides med eller uten resins instead of varnishes. In this connection, work can be done with or without

vakuum. For det meste er det dog ikke til vacuum. For the most part, however, it doesn't exist

å unngå å anvende vakuum, da den for-holdsvis viskose harpiks ellers ikke fyller to avoid using a vacuum, as the relatively viscous resin otherwise does not fill

ut alle hulrommene i den isolerte vikling. out all the cavities in the insulated winding.

Dessuten har denne fremgangsmåte, særlig Moreover, this method, in particular, has

i tilfellet av en komplisert geometrisk form in the case of a complicated geometric shape

av lederbuntene, den ulempe at der i dryp-petrauene må stå til rådighet uforholds-messig store harpiksmengder sammenholdt of the conductor bundles, the disadvantage that disproportionately large amounts of resin must be available in the drip trays

med de mengder som behøves for impreg-neringen. Efter at lederbunten er impreg-nert i trauet og tatt ut, er det ennu nød-vendig å presse den i former og bringe with the quantities needed for the impregnation. After the conductor bundle has been impregnated in the trough and taken out, it is still necessary to press it into shapes and bring

harpiksen til utherdning. the resin to cure.

En mulighet for å forbedre resp. for-enkle fremstillingen av harpiksimpregnerte An opportunity to improve or simplify the production of resin-impregnated

elektriske lederbunter består i å legge de electrical conductor bundles consist of laying them

ferdig omviklede lederbunter i vakuum-tette former som er nøyaktig tilpasset for-men og dimensjonene av lederbunten, og her foreta impregnering og definitiv form-ning i ett. Denne arbeidsmåte er imidlertid i det vesentlige begrenset til enkle leder-stav-former, da fremstillingen av de vakuum-tette former ellers blir for kostbar. ready-wrapped conductor bundles in vacuum-tight forms that are precisely adapted to the shape and dimensions of the conductor bundle, and here carry out impregnation and definitive shaping in one. However, this method of working is essentially limited to simple conductor-rod forms, as the production of the vacuum-tight forms would otherwise be too expensive.

Oppfinnelsen går ut på en fremgangsmåte til isolering av elektriske ledere eller lederbunter, hvor disse omvikles med flere lag av et båndmateriale på basis av glass-silke, glimmer og uherdet kunstharpiks som bindemiddel, hvert lag av båndmateriale underkastes en strykeoperasjon under oppvarmning og mykning av kunstharpiksen, de med det ønskede antall av således påførte båndlag forsynte lederbunter legges inn i pressformer og under innvirkning av presstrykket bringes på forhøyet temperatur for utherdning av kunstharpiksen. The invention concerns a method for insulating electrical conductors or bundles of conductors, where these are wrapped with several layers of a tape material based on glass silk, mica and unhardened synthetic resin as a binder, each layer of tape material is subjected to an ironing operation while heating and softening the synthetic resin , the conductor bundles provided with the desired number of tape layers applied in this way are placed in pressing molds and, under the influence of the pressing pressure, are brought to an elevated temperature for curing the synthetic resin.

Hensikten med oppfinnelsen er å for-enkle kunstharpiksimpregneringen av elektriske ledere eller lederbunter av komplisert geometrisk form og minske de dermed forbundne omkostninger. Med sikte på dette er fremgangsmåten i første rekke karakterisert ved at hvert lag av båndmateriale efter strykeoperasjonen dekkes med opp-løsningsmiddelfri kunstharpiks ved pensling, sprøyting eller smøring ved værelsetemperatur, og at denne som impregner-ingsmiddel tjenende kunstharpiks utherdes samtidig med den som bindemiddel anvendte kunstharpiks under innvirkning av presstrykket ved forhøyet temperatur. The purpose of the invention is to simplify the synthetic resin impregnation of electrical conductors or conductor bundles of complicated geometric shape and to reduce the associated costs. With a view to this, the method is primarily characterized by the fact that after the ironing operation, each layer of tape material is covered with solvent-free synthetic resin by brushing, spraying or lubrication at room temperature, and that this synthetic resin serving as an impregnating agent is cured at the same time as the synthetic resin used as a binder under the influence of the pressing pressure at elevated temperature.

For å forlenge den tid det med bindemiddel-harpiks forsynte båndmateriale kan oppbevares før det vikles rundt lederbuntene er det hensiktsmessig som bindemiddel-harpiks og som impregneringsharpiks å anvende harpikser på samme basis, men innstilt slik at bindemiddel-harpiksen utherder langsommere enn impregneringsharpiksen. Således kan man fordelaktig anvende to epoksydharpikser med anhydrid-herdere, hvis art og mengde da bestemmer hvor langsomt eller raskt de enkelte harpikser herdner. Ved strykningen av hvert båndlag blir der stadig bare fremkalt en kortvarig, lokalt . begrenset oppvarmning og dermed nedsettelse av harpiksens visko-sitet. Således blir glimmerpartiklene ikke skadet under strykningen. Strykningen bør foretas slik at den skrider frem fra midten av lederne resp. lederbuntene mot endene og ennu forhåndenværende innesluttet luft dermed blir drevet ut. In order to extend the time the band material provided with binder resin can be stored before being wrapped around the conductor bundles, it is appropriate to use resins on the same basis as binder resin and as impregnation resin, but adjusted so that the binder resin cures more slowly than the impregnation resin. Thus, one can advantageously use two epoxy resins with anhydride hardeners, the nature and amount of which then determine how slowly or quickly the individual resins harden. During the ironing of each band layer, only a short-term, local . limited heating and thus reduction of the resin's viscosity. Thus, the mica particles are not damaged during ironing. The ironing should be done so that it progresses from the middle of the conductors or the conductor bundles towards the ends and any trapped air that is still present is thus driven out.

Ved at impregneringsharpiksen påføres lagene av båndmateriale ved værelse-temperatur, tar det lang tid før harpiksen som følge av utherdning blir for seig til å kunne brukes til impregnering. Dette kan anses som en betraktelig fordel fremfor metoden med impregnering i trau, hvor impregneringsharpiksen må holdes på høyere temperatur og tiden inntil harpiksen blir for seig, er tilsvarende begrenset. Dessuten unngår man ved fremgangsmåten ifølge oppfinnelsen den ulempe ved metoden med impregnering i trau at der må stå for-holdsvis store mengder impregneringsharpiks til rådighet. As the impregnation resin is applied to the layers of strip material at room temperature, it takes a long time before the resin, as a result of curing, becomes too tough to be used for impregnation. This can be considered a considerable advantage over the method of impregnation in a trough, where the impregnation resin must be kept at a higher temperature and the time until the resin becomes too tough is correspondingly limited. Moreover, the method according to the invention avoids the disadvantage of the method of impregnation in a trough that relatively large amounts of impregnation resin must be available.

Claims (2)

1. Fremgangsmåte til isolering av elektriske ledere eller lederbunter, hvor disse omvikles med flere lag av et båndmateriale på basis av glassilke, glimmer og uherdet kunstharpiks som bindemiddel, hvert lag av båndmateriale underkastes en strykeoperasjon under oppvarmning og mykning av kunstharpiksen, de med det ønskede antall av således påførte båndlag forsynte lederbunter legges inn i pressformer og under innvirkning av presstrykket bringes på forhøyet temperatur for utherdning av kunstharpiksen, karakterisert ved at hvert lag av båndmateriale efter strykeoperasjonen dekkes med oppløsningsmiddelfri kunstharpiks ved pensling, sprøyting eller smøring ved værelsetemperatur, og at denne som im-pregneringsmiddel tjenende kunstharpiks utherdes samtidig med den som bindemiddel anvendte kunstharpiks under innvirkning av presstrykket ved forhøyet temperatur.1. Method for insulating electrical conductors or bundles of conductors, where these are wrapped with several layers of a tape material based on glass silk, mica and unhardened synthetic resin as a binder, each layer of tape material is subjected to an ironing operation while heating and softening the synthetic resin, those with the desired number of conductor bundles provided with tape layers thus applied are placed in press molds and, under the influence of press pressure, are brought to an elevated temperature for curing the synthetic resin, characterized in that each layer of tape material is covered with solvent-free synthetic resin after the ironing operation by brushing, spraying or lubrication at room temperature, and that this synthetic resin serving as an impregnating agent is cured at the same time as the synthetic resin used as a binder under the influence of the pressing pressure at an elevated temperature. 2. Fremgangsmåte som angitt i på-stand 1, karakterisert ved at der som bindemiddel -harpiks og som impregneringsharpiks anvendes to harpikser på samme basis og slik innstilt at den førstnevnte utherder langsommere enn den sistnevnte.2. Method as stated in claim 1, characterized in that two resins are used as binder resin and as impregnation resin on the same basis and adjusted so that the former cures more slowly than the latter.
NO772134A 1976-06-18 1977-06-17 DEVICE FOR AA MARKETING THE SUPPORT PLATE FOR A GRANATE CASTLE. NO144117C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7606985A SE413698B (en) 1976-06-18 1976-06-18 DEVICE FOR ASTADKOMMET MARKETING THE BATTLE PLATE FOR A GRANATHER

Publications (3)

Publication Number Publication Date
NO772134L NO772134L (en) 1977-12-20
NO144117B true NO144117B (en) 1981-03-16
NO144117C NO144117C (en) 1981-06-24

Family

ID=20328253

Family Applications (1)

Application Number Title Priority Date Filing Date
NO772134A NO144117C (en) 1976-06-18 1977-06-17 DEVICE FOR AA MARKETING THE SUPPORT PLATE FOR A GRANATE CASTLE.

Country Status (8)

Country Link
CH (1) CH619040A5 (en)
DE (1) DE2726991C2 (en)
FI (1) FI66249C (en)
FR (1) FR2355270A1 (en)
GB (1) GB1578279A (en)
IL (1) IL52285A (en)
NO (1) NO144117C (en)
SE (1) SE413698B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29517208U1 (en) * 1995-10-31 1997-02-27 Diehl GmbH & Co, 90478 Nürnberg Pyrotechnic charge sleeve
DE19546582C2 (en) * 1995-12-13 1998-07-30 Wolfhart Fritze Maneuver cartridge

Also Published As

Publication number Publication date
FI66249B (en) 1984-05-31
NO144117C (en) 1981-06-24
GB1578279A (en) 1980-11-05
NO772134L (en) 1977-12-20
DE2726991C2 (en) 1986-11-06
SE7606985L (en) 1977-12-19
FR2355270A1 (en) 1978-01-13
CH619040A5 (en) 1980-08-29
FR2355270B3 (en) 1980-04-30
IL52285A (en) 1982-07-30
FI66249C (en) 1984-09-10
FI771916A (en) 1977-12-19
DE2726991A1 (en) 1977-12-29
SE413698B (en) 1980-06-16

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