On line cutting of lova nitramine gun propellant
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On-Line Cutting of LOVA Nitramine Gun Propellant. Wayne Thomas William Newton Naval Surface Warfare Center Indian Head Division. Cutter Design History. We had to design a method of cutting LOVA strands remotely for the twin screw extruder.

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On-Line Cutting of LOVA Nitramine Gun Propellant

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On line cutting of lova nitramine gun propellant

On-Line Cutting of LOVA Nitramine Gun Propellant

Wayne Thomas

William Newton

Naval Surface Warfare Center

Indian Head Division


Cutter design history

Cutter Design History

  • We had to design a method of cutting LOVA strands remotely for the twin screw extruder.

  • The manual method of cutting strands is not applicable.

  • This strand cutting method is a very innovative technology in the continuous processing of LOVA propellant.


Manual feed cutter

MANUAL FEED CUTTER

  • This cutter uses a rotating blade against a brass block.

  • This technology is approximately 60 years old.

  • This used for various formulations.


On line cutter

ON LINE CUTTER

  • The basic premise of this cutter is to replace the person in the “Manual Feed Cutter”.

  • The strand is cut using a blade rotating past a brass block.


Capabilities of the on line cutter

CAPABILITIES OF THE ON LINE CUTTER

  • The cutter can cut strands from 0.25” to 0.75” in diameter.

  • The cutter can handle strand linear speed rates up to 50 ipm at maximum diameter.

  • The cuts are more uniform because the strand is indexed, stopped and then cut.

  • This is possible because the strand handling and cutting is handled by computer controlled motors.

  • At our new 88mm extruder we will be cutting 8 strands.


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