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Results for “wrapping”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 397 records · Page 22
All sourcesNASA NTRSDOE OSTI
NASA NTRS1965

Full-scale-tank ground-hold tests

Ground hold test of fiberglass constrictive wrap, hermetically sealed, foam insulated, full scale Centaur tank filled with liquid hydrogen

GROUND TEST↗
NASA NTRS1966

Tool permits damage-free removal of solar cell

Modified soldering iron extracts a wrap-around solar cell that is attached with solder or adhesive to a substrate without destroying the cell removed or damaging adjacent cells. Heat, vacuum, and compressed air, operated from a special head attached to the soldering iron, loosen, extract, and protect the cell.

Beckley, J. E., Jr.↗
NASA NTRS1966

Universal transloader moves delicate equipment without stress

Transloader moves delicate or heavy items over irregular surfaces without transmitting stress to the load. The loader is supported on three pivot points which produce a wrap free base. The base is supported by an artificial four-wheel frame.

Barbour, J. R.↗
NASA NTRS1967

High-temperature /1100 degrees F/ capacitors operate without supplement cooling

Multilayered capacitor with one-mil thick pyrolytic boron nitride and wrap around sputtered electrodes achieves parallel electrical interconnections in a stacked configuration of 3 to 9 wafers. These capacitors are compact, lightweight, and suitable for operation in high temperatures without supplemental cooling.

Stapleton, R. E.↗
NASA NTRS1968

Saran film is fire-retardant in oxygen atmosphere

Saran was tested for flammability as a wrapping on TFE-insulated electrical wire bundles in oxygen gas at pressures of 7.5 psia and 14.7 psia. It was found to be fire retardant or self-extinguishing in most instances.

Goodwin, J. T.↗
NASA NTRS1968

Feasibility Study 30 Watts per Pound Rollup Solar Array

Principal efforts in this reporting period were applied to preparation of the detail design of the array structure and mechanisms and to manufacturing drawings for a demonstration model of the selected design concept. Analytical support focused on substantiation of the detail design. Additional studies were performed of dynamic criteron effects on components of the wrap drum. Thermal studies were extended to evaluate another thin film (preferred) material for the substrate and its influence on solar cell temperatures. Electrical design considerations included feasibility studies and ramifications of using a new, larger size, solar cell and a new coverglass application concept. Preliminary evaluations suggest improvement in the array power to weight characteristic and net savings in the estimated cost of cell installation. Weight estimates have been up-dated in keeping with refinements in detail design. Performance of this contractor's rollout solar array design is now projected as capable of producing 31.6 watts per pound of weight; excludes estimated improvements from use of new solar cell design.

Source record↗
NASA NTRS1970

New type of nonflammable paper

Nonflammable paper is made from fibers of chrysotile asbestos, beta-glass fibers, glass microfibers, and a little nonflammable organic binder. It does not propagate flame in an atmosphere of 16.5-psig oxygen, and it is resistant to rot and mold, making it acceptable as wrapping material and for stored documents.

Armstrong, G. K.↗
NASA NTRS1971

Technique for in-place welding of aluminum backed up by a combustible material

Welding external aluminum jacket, tightly wrapped around inner layer of wood composition fiberboard, in oxygen free environment prevents combustion and subsequent damage to underlying fiberboard. Technique also applies to metal cutting in similar assemblies without disassembly to remove combustible materials from welding heat proximity.

Spagnuolo, A. C.↗