发明名称 |
METHOD OF MANUFACTURING MULTI-LAYERED PROPELLANT GRAINS |
摘要 |
A method of manufacturing a multi-layered propellant grain is provided. The method of the present disclosure simplifies the setup necessary to produce multi-layered propellants by using industrial equipment that is more energy and space efficient than the machinery that is conventionally employed for such processes. The method comprises providing a first propellant formulation; providing a die configured to provide a structure having an outer shell and a hollow interior when material is extruded therethrough; extruding the first propellant formulation through said die, to produce a first propellant layer having an outer shell defining a hollow interior in the form channel having open ends; providing a second propellant formulation, said second propellant formulation being of low viscosity; injecting said second propellant formulation into said channel defined by said first propellant layer to form a second propellant layer disposed in said channel; and hardening said second propellant layer. The first and second propellant layers have different rates of burning. |
申请公布号 |
CA2920690(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
CA20142920690 |
申请日期 |
2014.08.08 |
申请人 |
GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS - CANADA VALLEYFIELD INC. |
发明人 |
DURAND, SIMON;PARADIS, PIERRE-YVES;LEPAGE, DANIEL |
分类号 |
F42B33/00;B29C47/06;C06C9/00;F42B5/16 |
主分类号 |
F42B33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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