Accession Number : AD0474289

Title :   DEVELOPMENT OF MANUFACTURING PROCESSES FOR REINFORCED PLASTIC SOLID PROPELLANT ROCKET NOZZLES.

Descriptive Note : Final technical rept. 1 May 63-30 Sep 65,

Corporate Author : TRW INC CLEVELAND OH TRW STRUCTURES DIV

Personal Author(s) : Monastra, Joseph C.

Report Date : NOV 1965

Pagination or Media Count : 550

Abstract : A large nozzle fabrication process was developed. The process uses a high tension, precisely controlled overwrap to provide the curing pressure ordinarily furnished by means of a hydroclave, autoclave or matched die. The system chosen for development was selected with a major emphasis on maximum mobility. The process requires only the conventional turn table with controlled feed, a simple tensioning device and a heat source for curing. Secondary program events include studies of the effects of density on material performance, tape wrapping experiments, tooling evaluations and the design, fabrication and post-firing evaluation of four subscale nozzles that were produced with the developed technique. During the program, an exit cone for a 120-inch motor nozzle, a complete nozzle for a 156-inch motor and an exit cone for a 260-inch motor nozzle were fabricated by means of the developed process. All were produced at lower total costs than associated with conventional methods, with no sacrifice of reliability, weight or performance. (Author)

Descriptors :   (*SOLID PROPELLANT ROCKET ENGINES, ROCKET NOZZLES), (*ROCKET NOZZLES, MANUFACTURING), PLASTICS, REINFORCING MATERIALS, ABLATION, MECHANICAL PROPERTIES, THERMAL STRESSES, INDUSTRIAL EQUIPMENT, WIRE WINDING MACHINES, TAPE WOUND CONSTRUCTION, NOZZLE THROATS, PHENOLIC PLASTICS, GRAPHITE, CARBON, SILICON COMPOUNDS, DIOXIDES, COMPOSITE MATERIALS, PROCESSING, QUALITY CONTROL, SCALE, MODEL TESTS.

Subject Categories : Laminates and Composite Materials
      Plastics
      Solid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE