Method and arrangement for producing propellant for charges with high charge density and high progressivity

Method and arrangement for producing propellant for charges with high charge density and high progressivity

  • CN 1,914,478 A
  • Filed: 12/08/2004
  • Published: 02/14/2007
  • Est. Priority Date: 12/09/2003
  • Status: Active Grant
First Claim
Patent Images

1. produce the cylindrical propellant tube (1 of being with radial hole for one kind, 23,31) method, it is characterized in that, each propellant tube (1,23,31) is when being fixed and after carrying out centering between self openend, by one or more movably perforating needles (13) in a large amount of punch operation continuously step by step to the propellant tube punching, described perforating needle can be in needle mould (10) relatively propellant tube move radially and the major part by the propellant tube wall at least;

  • The described perforating needle in each punching back turns back to the position before the punching, at this position needle mould (10,20-22) and propellant tube (1,23,31) relatively move, make the zone punching that described pin is processed the front of propellant tube next time when starting, thereby after finishing punch operation, the hole shape pore-forming area of coverage of entire quantity, the hole has the e size of requirement each other.

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