NO136924B - EXPLOSIVE LUNTE. - Google Patents
EXPLOSIVE LUNTE. Download PDFInfo
- Publication number
- NO136924B NO136924B NO3485/73A NO348573A NO136924B NO 136924 B NO136924 B NO 136924B NO 3485/73 A NO3485/73 A NO 3485/73A NO 348573 A NO348573 A NO 348573A NO 136924 B NO136924 B NO 136924B
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- Norway
- Prior art keywords
- adhesive
- explosive
- tube
- tapes
- hot
- Prior art date
Links
- 239000002360 explosive Substances 0.000 title claims description 33
- 239000000463 material Substances 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 claims description 20
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 239000004831 Hot glue Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 239000004753 textile Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000012815 thermoplastic material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 claims 3
- 238000009751 slip forming Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000843 powder Substances 0.000 description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 3
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- 239000000026 Pentaerythritol tetranitrate Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000665 guar gum Substances 0.000 description 2
- 229960002154 guar gum Drugs 0.000 description 2
- 235000010417 guar gum Nutrition 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- VLTOSDJJTWPWLS-UHFFFAOYSA-N pent-2-ynal Chemical compound CCC#CC=O VLTOSDJJTWPWLS-UHFFFAOYSA-N 0.000 description 1
- 229940059574 pentaerithrityl Drugs 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001290 polyvinyl ester Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920005613 synthetic organic polymer Polymers 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C5/00—Fuses, e.g. fuse cords
- C06C5/04—Detonating fuses
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Fuses (AREA)
Description
Denne oppfinnelse angår eksplosiv lunte og en fremgangsmåte for fremstilling av eksplosive lunter. Oppfinnelsen er spesielt nyttig for å skaffe eksplosive lunter for bruk under vann. This invention relates to an explosive fuse and a method for producing explosive fuses. The invention is particularly useful for providing explosive fuses for underwater use.
Ved en vanlig brukt oppbygning av eksplosive lunter er In a commonly used construction of explosive fuses is
en eksplosiv kjerne omhyllet av et tynt papir- eller plastrør for-sterket med et omhyllingsmateriale som vanligvis består av ett eller flere spunne lag av tekstilgarn omgitt av et ytterskikt av termoplastisk materiale. Ved fremstillingen av lunter av denne oppbygning lages det tynne røret kontinuerlig av tape, vanligvis langsgående tape, som er krummet rundt sin langsgående akse for å danne røret ved å føre det gjennom en dyse. an explosive core encased in a thin paper or plastic tube reinforced with an encasement material which usually consists of one or more spun layers of textile yarn surrounded by an outer layer of thermoplastic material. In the manufacture of fuses of this construction, the thin tube is made continuously of tape, usually longitudinal tape, which is bent about its longitudinal axis to form the tube by passing it through a die.
Eksplosivet mates kontinuerlig fra en trakt inn i røret mens røret formes og gjøres fast ved å føre røret gjennom dyser for å danne den eksplosive kjerne. Tekstilgarn på spoler som ro-terer rundt røret, vinnes spiralformet rundt røret og det ytre skiktet ekstruderes rundt garnet. The explosive is continuously fed from a hopper into the tube while the tube is shaped and fixed by passing the tube through nozzles to form the explosive core. Textile yarn on spools rotating around the tube is wound spirally around the tube and the outer layer is extruded around the yarn.
Det eksplosive materialet som vanligvis brukes i lunter desensitiveres lett av vann. Således vil en lunte med en kjerne av krystallint pentaerytritol-tetranitrat insensitiveres for initi-ering av en standard-detonator hvis enden av lunten neddykkes i vann i en viss tid. For å motvirke dette er det eksplosive pulve-ret blitt behandlet med vannsikrende belegningsmidler, men disse var bare effektive til en dybde på 15 cm vann. For bruk ved stør-re vanndybder var det foretrukket å blande ca. 1 til 2 vekt% av et vann-gelerbart materiale, f.eks. guargummi, med det eksplosive pulver og dette hadde den effekt at det ble dannet en relativt ugjennomtrengelig barriere av gelert materiale ved den utsatte ende av den eksplosive kjerne, og hastigheten nedsettes derved for inntrengning av vann. Denne behandling har imidlertid ikke vært helt vellykket fordi søkerne har funnet at selv om vannet hindres fra å trenge inn gjennom enden av den eksplosive kjernen, kan det trenge inn langs tekstillaget og angripe den eksplosive kjerne fra siden, hvorved det eksplosive materialet blir vass-trukkent og insensitivt. The explosive material usually used in fuses is easily desensitized by water. Thus, a fuse with a core of crystalline pentaerythritol tetranitrate will be insensitive to the initiation of a standard detonator if the end of the fuse is immersed in water for a certain time. To counteract this, the explosive powder has been treated with waterproof coating agents, but these were only effective to a depth of 15 cm of water. For use at greater water depths, it was preferred to mix approx. 1 to 2% by weight of a water-gelable material, e.g. guar gum, with the explosive powder and this had the effect that a relatively impermeable barrier of gelled material was formed at the exposed end of the explosive core, and the speed is thereby reduced for the penetration of water. However, this treatment has not been entirely successful because the applicants have found that even if the water is prevented from penetrating through the end of the explosive core, it can penetrate along the textile layer and attack the explosive core from the side, whereby the explosive material becomes water-drawn and insensitive.
Det er et formål med oppfinnelsen å skaffe en forbedret, vann-resistent oppbygning av eksplosive lunter. It is an object of the invention to provide an improved, water-resistant construction of explosive fuses.
Ifølge oppfinnelsen omfatter en eksplosiv lunte en kjerne av vann-desensitiverbart eksplosivt materiale innelukket i et rørformet, kontinuerlig lag av varmesmeltende vannsikker klebemiddelblanding fordelt umiddelbart rundt kjernen. Den varmesmeltende klebemiddelblåndingen har hensiktsmessig form av en eller flere tapes som er omvunnet rundt kjernen og varmeforseglet i kantene slik at det dannes et kontinuerlig rør av klebemidlet. Tapen foreligger hensiktsmessig i form av en eller flere langsgående tapes som er krummet langs sine lengdeakser for å omvikle kjernen, fortrinnsvis med overlappende kanter og varme forseglet i de overlappende deler. Tapen omfatter fortrinnsvis et lag av varmsmeltende klebemiddel på et bæresubstrat som hensiktsmessig kan være papir eller syntetiske plastfilmer» Når lunten omfatter to eller flere understøttede tapes av varmesmeltende klebemidler, er det foretrukket at tapene orienteres slik at substratene avvekslende vender innover og utover med overlappende kanter og med klebemidlet på de overlappende delene mot hverandre og forseglet sammen. According to the invention, an explosive fuse comprises a core of water-desensitizable explosive material enclosed in a tubular, continuous layer of hot-melting waterproof adhesive mixture distributed immediately around the core. The hot-melt adhesive blend conveniently takes the form of one or more tapes which are wrapped around the core and heat-sealed at the edges so that a continuous tube of the adhesive is formed. The tape is suitably in the form of one or more longitudinal tapes which are curved along their longitudinal axes to wrap around the core, preferably with overlapping edges and heat sealed in the overlapping parts. The tape preferably comprises a layer of hot-melting adhesive on a carrier substrate which can conveniently be paper or synthetic plastic films" When the fuse comprises two or more supported tapes of hot-melting adhesive, it is preferred that the tapes are oriented so that the substrates alternately face inwards and outwards with overlapping edges and with the adhesive on the overlapping parts against each other and sealed together.
I den ferdige lunten er det rørformede laget av varmesmeltende klebemiddel hensiktsmessig omgitt av et eller flere spunne lag av tekstilmaterialer, f.eks. jute, bomull eller syntetiske plastfibre, for å skaffe en forsterkning, og lunten kan ha et ytre ekstrudert skikt av syntetisk termoplastisk materiale, f. eks. polyvinylklorid eller polyetylen, som i konvensjonelle detonerende lunter. In the finished fuse, the tubular layer of hot melt adhesive is conveniently surrounded by one or more spun layers of textile materials, e.g. jute, cotton or synthetic plastic fibers, to provide a reinforcement, and the fuse may have an outer extruded layer of synthetic thermoplastic material, e.g. polyvinyl chloride or polyethylene, as in conventional detonating fuses.
Det varmesmeltende klebemiddel har fortrinnsvis en bin-detemperatur i området 50 til 90°C, mer foretrukket i området 60 til 80°C. Det kan baseres på proteinlim eller voks, men fortrinnsvis er det basert på celluloseester eller -eter, eller syntetisk organisk polymer, f.eks. polyvinylester, polyvinylacetal, poly-amid eller en terpolymer gummi bestående av etylen og propylen terpolymerisert med et umettet hydrokarbon som f.eks. butadien. Spesielt hensiktsmessige syntetiske polymerer er kopolymerer av vinylacetat og etylen omfattende 7 til 30% vinylacetat. Midlet omfatter hensiktsmessig også en klebrig harpiks f.eks. en kumaron/ inden-klebeharpiks, en klebrig terpenharpiks eller et kolofonium-derivat som f.eks. hydrogenert kolofonium, dehydrogenert kolofonium og estere av disse derivater. The hot-melt adhesive preferably has a bonding temperature in the range 50 to 90°C, more preferably in the range 60 to 80°C. It can be based on protein glue or wax, but preferably it is based on cellulose ester or ether, or synthetic organic polymer, e.g. polyvinyl ester, polyvinyl acetal, polyamide or a terpolymer rubber consisting of ethylene and propylene terpolymerized with an unsaturated hydrocarbon such as e.g. butadiene. Particularly suitable synthetic polymers are copolymers of vinyl acetate and ethylene comprising 7 to 30% vinyl acetate. The agent suitably also comprises a sticky resin, e.g. a coumarone/indene tackifying resin, a tacky terpene resin or a rosin derivative such as e.g. hydrogenated rosin, dehydrogenated rosin and esters of these derivatives.
Den eksplosive kjerne foreligger fortrinnsvis i pulver-form og kan f.eks. omfatte svartkrutt i en sikkerhetslunte eller krystallisk pentaerytritoltetranitrat i detonerende lunte. I detonerende lunte kan det eksplosive pulver belegges med et vannsikrende middel, f.eks. silikon, men for bruk på dypt vann bør pulve-ret fortrinnsvis b<ft>landes med et vanngelerbart materiale, f.eks. guargummi eller et salt av karboksymetylcellulose. The explosive core is preferably in powder form and can e.g. include black powder in a safety fuse or crystalline pentaerythritol tetranitrate in a detonating fuse. In detonating fuses, the explosive powder can be coated with a waterproofing agent, e.g. silicone, but for use in deep water the powder should preferably be mixed with a water-gelable material, e.g. guar gum or a salt of carboxymethyl cellulose.
Oppfinnelsen omfatter også en fremgangsmåte for fremstilling av en eksplosiv lunte som omfatter kontinuerlig å danne et rør av varmesmeltende klebende tapemateriale, innføring av eksplosivt materiale i røret under dannelsen av dette for å danne en kontinuerlig eksplosiv kjerne i nevnte rør og oppvarming av røret for å utvirke kontinuitet av det klebende materialet. The invention also includes a method of making an explosive fuse which comprises continuously forming a tube of hot melt adhesive tape material, introducing explosive material into the tube during its formation to form a continuous explosive core in said tube and heating the tube to effect continuity of the adhesive material.
Røret er fortrinnsvis omgitt av forsterkende omhyllingsmateria-ler, f.eks. et eller flere spunne lag av tekstilmaterialer og, The pipe is preferably surrounded by reinforcing covering materials, e.g. one or more spun layers of textile materials and,
om ønsket, et ekstrudert skikt av syntetisk termoplastisk materiale . if desired, an extruded layer of synthetic thermoplastic material.
Tapens kanter overlapper hverandre fortrinnsvis, og de overlappende deler blir sammenbundet når røret oppvarmes. I en foretrukket fremgangsmåte dannes røret av varmesmeltende klebemiddel av en eller flere langsgående tapes som er krummet rundt sine lengdeakser og varme for seglet i kantene-. Når lunten er omgitt av et ekstrudert skikt av termoplastisk materiale, kan varmen fra det termoplastiske materiale være tilstrekkelig til å smelte klebemidlet, og det er vanligvis hensiktsmessig å bruke et varmesmeltende klebemiddel med tilstrekkelig lavt smeltepunkt som kan varmeforsegles på denne måten uten behov for et separat varmefor-seglingstrinn ved fremstillingen. The edges of the tape preferably overlap each other, and the overlapping parts are joined together when the tube is heated. In a preferred method, the tube is formed of hot-melting adhesive from one or more longitudinal tapes which are curved around their longitudinal axes and heat for the seal at the edges. When the fuse is surrounded by an extruded layer of thermoplastic material, the heat from the thermoplastic material may be sufficient to melt the adhesive, and it is usually appropriate to use a hot-melt adhesive with a sufficiently low melting point that can be heat-sealed in this way without the need for a separate heat-sealing step in the manufacture.
Den foretrukne varmesmeltende klebemiddeltape omfatter et lag av klebemiddel på et bærende substrat, og når det brukes to eller flere tapes, bør de fortrinnsvis legges med substratene på tapen avvekslende innover og utover med overlappende kanter og med klebematerialet på overlappende kanter i kontakt med hverandre. The preferred hot melt adhesive tape comprises a layer of adhesive on a supporting substrate, and when two or more tapes are used, they should preferably be laid with the substrates on the tape alternating inward and outward with overlapping edges and with the adhesive material on overlapping edges in contact with each other.
For å illustrere oppfinnelsen ytterligere beskrives ne-denfor en foretrukket oppbygning av en lunte, bare som et eksempel og med henvisning til de medfølgende tegninger, hvor: Fig. 1 skjematisk viser et stykke av en lunte med den ene ende To further illustrate the invention, a preferred construction of a fuse is described below, only as an example and with reference to the accompanying drawings, where: Fig. 1 schematically shows a piece of a fuse with one end
g jennomskåret. g transected.
Fig. 2 er et tverrsnitt etter linjen II-II på fig. 1 i større skala. Fig. 2 is a cross-section along the line II-II in fig. 1 on a larger scale.
Lunten har en kjerne 11 av pulverformet eksplosiv innelukket i et rør dannet av to tapes 12, kantene av tapene overlapper hverandre og er varmeforseglet som vist i fig. 2. Kjernen'in-neholder et enkelt aksialt garn 13 for å lette strømmen av eksplosiv fra en trakt under fremstillingen av lunten. Tapene 12 er omgitt av et spunnet lag 14. og et i motsatt retning spunnet lag 15 av tekstilgarn eller tapes, og tekstillagene er omgitt av et skikt 16 av syntetisk termoplastisk materiale. Tapene 12 består av et substrat 17 med et lag av varmsmeltende klebemiddel 18, en tape har substratet vendt innover og den annen utover. The fuse has a core 11 of powdered explosive enclosed in a tube formed by two tapes 12, the edges of the tapes overlap each other and are heat sealed as shown in fig. 2. The core contains a single axial yarn 13 to facilitate the flow of explosive from a hopper during the manufacture of the fuse. The tapes 12 are surrounded by a spun layer 14 and a layer 15 spun in the opposite direction of textile yarn or tapes, and the textile layers are surrounded by a layer 16 of synthetic thermoplastic material. The tapes 12 consist of a substrate 17 with a layer of hot-melt adhesive 18, one tape has the substrate facing inwards and the other outwards.
De følgende eksempler på en detonerende lunte med den foran nevnte oppbygning illustrerer oppfinnelsen ytterligere. Al-le deler og prosenter er angitt etter vekt. The following examples of a detonating fuse with the aforementioned construction further illustrate the invention. All parts and percentages are indicated by weight.
Eksempel 1 Example 1
krystallinsk PETN med en tilsetningsgrad av 10 g/m ble crystalline PETN with an addition rate of 10 g/m was
fylt i et rør dannet av to tapes 12 bestående av et substrat 17 av 0,08 mm tykt kraftpapir som hadde et 0,13 mm tykt lag av varmesmeltende klebemiddelblanding 18. Sammensetningen av klebemidlet var: 33,3% av en kopolymer av 28 deler vinylacetat og 72 deler filled in a tube formed by two tapes 12 consisting of a substrate 17 of 0.08 mm thick kraft paper which had a 0.13 mm thick layer of hot melt adhesive mixture 18. The composition of the adhesive was: 33.3% of a copolymer of 28 parts vinyl acetate and 72 parts
etylen, smeltestrømindeksen for kopolymeren er 20 ethylene, the melt flow index of the copolymer is 20
33,3% "Staybelite"-ester 10, klebrig harpiks, en glycerol-ester av hydrogenert trekolofonium som markedsføres av Hercules Inc. 33.3% "Staybelite" Ester 10, tacky resin, a glycerol ester of hydrogenated tree rosin marketed by Hercules Inc.
33,3% paraffinvoks (smp. 62°C) 33.3% paraffin wax (m.p. 62°C)
0,1% butylert hydroksytoluen (antioksydant) 0.1% butylated hydroxytoluene (antioxidant)
Garnet var 1000 denier polypropylen. The yarn was 1000 denier polypropylene.
Det spunne laget 14 besto av 10 garn av 1000 denier polypropylen og det motgående laget 15 besto av 8 lignende garn. skiktet 16 var av polyvinylklorid. The spun layer 14 consisted of 10 yarns of 1000 denier polypropylene and the opposing layer 15 consisted of 8 similar yarns. the layer 16 was of polyvinyl chloride.
Stykker av denne lunten med eksponerte ender frembragte de-tonasjon på tilfredsstillende måte etter neddykking på et dyp av 5 meter vann i 72 timer. Pieces of this fuse with exposed ends produced satisfactory detonation after immersion in a depth of 5 meters of water for 72 hours.
Eksempel 2 Example 2
En lunte ble laget som beskrevet i eksempel 1, bortsett fra at sammensetningen av det varmesmeltende klebemidlet var: 35% av en kopolymer av 28 deler vinylacetat og 72 deler A fuse was made as described in Example 1, except that the composition of the hot melt adhesive was: 35% of a copolymer of 28 parts vinyl acetate and 72 parts
etylen med smeltestrømindeks på 150 ethylene with a melt flow index of 150
35% "Staybelite" ester 10 35% "Staybelite" ester 10
29,9% paraffinvoks (smp. 62°C) 29.9% paraffin wax (m.p. 62°C)
0,1% butylert hydroksytoluen. 0.1% butylated hydroxytoluene.
Lunten hadde en vannmotstandsevne tilsvarende den i eksempel 1. The fuse had a water resistance similar to that in example 1.
Eksempel 3 Example 3
En lunte ble laget som beskrevet i eksempel 1, bortsett fira at sammensetningen av det varmesmeltende klebemidlet var: 35% av en kopolymer av 24 deler vinylacetat og 76 deler A fuse was made as described in Example 1, except that the composition of the hot melt adhesive was: 35% of a copolymer of 24 parts vinyl acetate and 76 parts
etylen med en smeltestrømindeks på 20 ethylene with a melt flow index of 20
10,0% "Pentalyn C", en pentaerytritolester av hydrogenert 10.0% "Pentalyn C", a pentaerythritol ester of hydrogenated
trekolofonium fra Hercules Inc. wood rosin from Hercules Inc.
40,0% "Staybelite" ester 10 40.0% "Staybelite" ester 10
14,9%, paraffinvoks 14.9%, paraffin wax
0,1% butylert hydroksytoluen 0.1% butylated hydroxytoluene
Lunten hadde vannmotstandsevne tilsvarende den i eksempel 1. The fuse had water resistance similar to that in example 1.
Claims (13)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4135672A GB1378669A (en) | 1972-09-06 | 1972-09-06 | Explosive fuse-cord |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO136924B true NO136924B (en) | 1977-08-22 |
| NO136924C NO136924C (en) | 1977-11-30 |
Family
ID=10419313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO3485/73A NO136924C (en) | 1972-09-06 | 1973-09-05 | EXPLOSIVE LUNTE. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3908549A (en) |
| JP (1) | JPS49132209A (en) |
| AU (1) | AU476709B2 (en) |
| BR (1) | BR7306785D0 (en) |
| CA (1) | CA1009085A (en) |
| CH (1) | CH602520A5 (en) |
| ES (1) | ES418528A1 (en) |
| FR (1) | FR2198116B1 (en) |
| GB (1) | GB1378669A (en) |
| IT (1) | IT993163B (en) |
| NO (1) | NO136924C (en) |
| SE (1) | SE412060B (en) |
| ZA (1) | ZA735952B (en) |
| ZM (1) | ZM13273A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995525A (en) * | 1974-05-20 | 1976-12-07 | Imperial Chemical Industries Limited | Method for manufacturing detonating fuse-cord |
| IN144784B (en) * | 1974-12-23 | 1978-07-08 | Ici Ltd | |
| GB1566107A (en) * | 1976-11-08 | 1980-04-30 | Ici Ltd | Explosive fuse cord |
| NZ187824A (en) | 1977-08-01 | 1980-08-26 | Ici Australia Ltd | Fusecord wherein outer thermoplastic sheath enclosed by flexible strands adhered to sheath by adhesive from a water-bearing adhesive composition |
| US4493261A (en) * | 1983-11-02 | 1985-01-15 | Cxa Ltd./Cxa Ltee | Reinforced explosive shock tube |
| US5317974A (en) * | 1988-02-03 | 1994-06-07 | Imperial Chemical Industries Plc | Low energy fuse and method and manufacture |
| GB8802329D0 (en) * | 1988-02-03 | 1988-03-02 | Ici Plc | Low energy fuse & method of manufacture |
| US6247410B1 (en) * | 1998-12-10 | 2001-06-19 | The United States Of America As Represented By The Secretary Of The Navy | High-output insensitive munition detonating cord |
| US6508176B1 (en) * | 1999-01-20 | 2003-01-21 | The Ensign-Bickford Company | Accumulated detonating cord explosive charge and method of making and of use of the same |
| US6439099B1 (en) | 2000-09-14 | 2002-08-27 | The United States Of America As Represented By The Secretary Of The Navy | Explosive charges braided into a line charge assembly |
| US6601516B2 (en) * | 2001-03-30 | 2003-08-05 | Goodrich Corporation | Low energy fuse |
| ES2584922B1 (en) * | 2015-03-30 | 2017-07-10 | José Miguel FAUBEL BARRACHINA | Wick for pyrotechnic artifact |
| CN109667007B (en) * | 2017-10-17 | 2022-03-25 | 喻翠云 | Preparation method and application of novel micro-smoke ignition wire outer covering wire |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US871696A (en) * | 1907-05-06 | 1907-11-19 | Rapid Fire Fuse Igniter Company | Igniting-tape and process of producing same. |
| US1674773A (en) * | 1924-10-07 | 1928-06-26 | Fritzsche Johannes | Safety fuse |
| CH224733A (en) * | 1940-10-03 | 1942-12-15 | Loison Emile | Lubrication system of an internal combustion engine. |
| DE1248526B (en) * | 1965-01-19 | 1967-08-24 | Dynamit Nobel Ag | Detonating cord |
| DE1277728B (en) * | 1965-08-14 | 1968-09-12 | Dynamit Nobel Ag | Method of making a detonating cord |
| US3349705A (en) * | 1966-01-21 | 1967-10-31 | Dow Chemical Co | Presplitting device |
| US3415703A (en) * | 1966-03-18 | 1968-12-10 | Giffen Burgess Corp | Process for face-seaming carpeting |
| GB1196435A (en) * | 1967-06-26 | 1970-06-24 | Trojan Powder Co | Process and Apparatus for Preparing Detonating and Deflagrating Fuse and Product |
| US3474730A (en) * | 1967-09-20 | 1969-10-28 | Apache Powder Co | Luminescent coated detonating fuse |
-
1972
- 1972-09-06 GB GB4135672A patent/GB1378669A/en not_active Expired
-
1973
- 1973-08-23 AU AU59548/73A patent/AU476709B2/en not_active Expired
- 1973-08-23 ZM ZM132/73A patent/ZM13273A1/en unknown
- 1973-08-24 US US391513A patent/US3908549A/en not_active Expired - Lifetime
- 1973-08-29 ZA ZA00735952A patent/ZA735952B/en unknown
- 1973-08-31 BR BR6785/73A patent/BR7306785D0/en unknown
- 1973-09-05 NO NO3485/73A patent/NO136924C/en unknown
- 1973-09-05 SE SE7312096A patent/SE412060B/en unknown
- 1973-09-05 IT IT28597/73A patent/IT993163B/en active
- 1973-09-05 FR FR7331994A patent/FR2198116B1/fr not_active Expired
- 1973-09-06 CH CH1283473A patent/CH602520A5/xx not_active IP Right Cessation
- 1973-09-06 JP JP48099795A patent/JPS49132209A/ja active Pending
- 1973-09-06 CA CA180,418A patent/CA1009085A/en not_active Expired
- 1973-09-06 ES ES418528A patent/ES418528A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH602520A5 (en) | 1978-07-31 |
| FR2198116A1 (en) | 1974-03-29 |
| NO136924C (en) | 1977-11-30 |
| AU5954873A (en) | 1975-02-27 |
| FR2198116B1 (en) | 1978-11-10 |
| ZA735952B (en) | 1975-04-30 |
| ES418528A1 (en) | 1976-03-16 |
| JPS49132209A (en) | 1974-12-18 |
| IT993163B (en) | 1975-09-30 |
| GB1378669A (en) | 1974-12-27 |
| DE2344524A1 (en) | 1974-05-02 |
| ZM13273A1 (en) | 1975-04-21 |
| CA1009085A (en) | 1977-04-26 |
| US3908549A (en) | 1975-09-30 |
| BR7306785D0 (en) | 1974-07-18 |
| SE412060B (en) | 1980-02-18 |
| AU476709B2 (en) | 1976-09-30 |
| DE2344524B2 (en) | 1975-07-24 |
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