Reorienting grain direction of calendered insulation sheet stock

Details Reorienting grain direction of calendered insulation sheet stock Reorienting grain direction of calendered insulation sheet stock

1989-09-18

1992-05-19

Casaregola, Louis J.

Power plants

Reaction motor

Solid propellant

60271, 428181, F02K 932

Patent

active

051136503

ABSTRACT:
Improved resistance of fiber filled insulation to erosion from combustion gas flow ina solid propellant rocket motor is produced by orienting the fiber direction of the grain of the fibers in the insulation to a direction in which the direction of the fiber grain is substantially perpendicular to the direction of the flow of combustion gas in the rocket motor. Unvulcanized fiber filled insulation sheet stock is folded and compacted in accordion-like style such that the fiber grain direction is reoriented eassentially 90 degrees in the roll direction of the sheet stock.

REFERENCES:
patent: 3250070 (1966-05-01), Milewski et al.
patent: 3347047 (1967-10-01), Hartz et al.
patent: 3421970 (1969-01-01), Daly et al.
patent: 4492779 (1985-01-01), Junior et al.
patent: 4600732 (1986-07-01), Junior et al.

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