Resources Contact Us Home
Method and apparatus for fabricating pipeless explosive and propellant charges

Image Number 2 for United States Patent #4380186.

For the fabrication of pipeless explosive and/or propellant charges there is provided an insulation sleeve, whose radial thermal conductivity or heat transmission, at a random cross-section, essentially corresponds to the quantity of heat which radially flows out at such location and is released as a result of the solidification of the melt. By means of the insulation sleeve there is produced a pipeless casting without any subsequent supply of external or separate energy, e.g. electrical heating and so forth, even if the cast or molded article has very small pour openings. The required thermal conductivity or heat transmission in the insulation sleeve can be adapted to the thermal conditions of the cast article by employing insulating elements or parts and/or hollow spaces or chambers with heat carriers, e.g. melt. Corresponding casting methods are predicated upon a carefully directed preheating and stepwise cooling of the cast article and the insulation sleeve.

  Recently Added Patents
Image display device and capsule endoscope system
Chip on film (COF) package having test line for testing electrical function of chip and method for manufacturing same
Electronic device with embedded antenna
Apparatus and method for multiple pagings in broadband wireless communication system
Therapeutic rinse in a self-heating package
Early kill removal graphics processing system and method
  Randomly Featured Patents
Portable terminal equipment and communication method therefor
Millimeter-wave passive FET switch using impedance transformation networks
Wireless IC device and component for wireless IC device
Information recording disc having an anti-reflection layer and information recording/reproducing apparatus
Antiskid device
Tractor implement for scrubbing pavement
Process for the preparation of gamma-butyrolactams
Variable optical attenuator
Oval lamp design
Kick sledge