Plastic and nonmetallic article shaping or treating: processes – Explosive or propellant article shaping or treating – Extrusion to form sheet or rod
Patent
1987-07-17
1989-03-07
Nelson, Peter A.
Plastic and nonmetallic article shaping or treating: processes
Explosive or propellant article shaping or treating
Extrusion to form sheet or rod
264 35, C06B 2100
Patent
active
048104302
ABSTRACT:
A deformable molded fiber product is formed by a method of felting, pressing and drying the compressed product having a uniformly spaced series of low density ridges on one surface. These ridges provide the molded fiber product with sufficient flexibility so that is may be subjected to a hot swaging like process to change its dimensions. A method of forming detents by hot pressing is also shown. The process is particularly useful in forming combustible nitrocellulose shell casings from a single pulp molding operation.
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DeLuca & Williams, Molded Fiber Products, Encyclopedia of Materials Science & Eng. pp. 3090-3092, Pergaman Press, 1986.
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