Low energy fuse and method for its manufacture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C06B-021/00
F42B-003/00
출원번호
US-0786655
(1997-01-21)
우선권정보
SE-0003459 (1992-11-17)
발명자
/ 주소
Andersson Lars,SEX
Danertz Karl-Erik,SEX
Jidestig Goran,SEX
출원인 / 주소
Nitro Nobel AB, SEX
대리인 / 주소
Burns, Doane, Sweck & Mathis, L.L.P.
인용정보
피인용 횟수 :
8인용 특허 :
0
초록▼
A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer
A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin. The polymer in the second layer is axially oriented to an orientation degree (as defined) of more than 25% and less than 90% and that the polymer of the first layer has an axial orientation degree not exceeding 10% orientation degree units more than that of the second layer. The tube can be manufactured by a) forming, by extrusion of the first layer plastic, the first layer in the form of a tube, b) introducing the reactive material in the tube channel, c) limiting stretching of the first layer to give a low degree of orientation, not exceeding 10% (as defined), d) forming, by extrusion of the second layer plastic, the second layer around the first tube, while the first layer have said low degree of orientation, and e) cold-stretching the first and second layers together.
대표청구항▼
[ We claim:] [1.] A method for manufacture of a low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at lease two layers of plastic materials, a first plastic layer clo
[ We claim:] [1.] A method for manufacture of a low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at lease two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin, characterized in, that it comprises the steps ofa) forming, by extrusion of the first layer plastic, the first layer in the form of a tube,b) introducing the reactive material in the tube channel,c) limiting stretching of the first layer to give a low degree of orientation, not exceeding 10%,d) forming, by extrusion of the second layer plastic, the second layer around the first tube, while the first layer has said low degree of orientation, ande) cold-stretching the first and second layers together to axially orient the polymer of the second layer to an orientation degree of more than 20% and less than 90% and to axially orient the polymer of the first layer to an orientation degree not exceeding 10% orientation degree units more than that of the second layer.
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이 특허를 인용한 특허 (8)
Murphy,Constance; Brough,John; Muscato,Richard S., Co-extrusion of energetic materials using multiple twin screw extruders.
Nickolay Iliych Rabotinsky RU; Vladimir Vasilievitch Furne RU; Uriy Gennadievitch Pechenev RU; Igor Vasilievitch Nikitin RU; Irina Genadievna Beljankina RU; Ernest L. Gladden, Method of making a signal transmission fuse.
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