Accession Number : ADD013582

Title :   Glass-Lined Pipes.

Descriptive Note : Patent, Filed 3 Jul 86, patented 27 Oct 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Goldstein, David

Report Date : 27 Oct 1987

Pagination or Media Count : 5

Abstract : A method of producing a glass lined metal pipe in which an unconsolidated metal or metal alloy powder is loaded into a sealable glass mold comprising a graphite core, a glass sleeve slipped over the graphite core with a sliding fit, a sealable outer glass envelope surrounding the graphite core and glass sleeve forming with them a sealable chamber for the metal or metal alloy powder, wherein the glass is a type which becomes plastics when heated. The air in the mold is removed under vacuum and the mold is sealed and placed into a free flowing refractory powder in a crucible and consolidated by sintering under atmospheric pressure. Removal of the glass envelope and the graphite core produces a glass-lined pipe in which the glass liner is slightly fused into and is under compressive force from the surrounding metal pipe.

Descriptors :   *GLASS, *LININGS, *PIPES, BAROMETRIC PRESSURE, COMPRESSIVE PROPERTIES, CORES, GRAPHITE, METALS, MOLDS(FORMS), POWDER ALLOYS, POWDER METALS, SINTERING, SLEEVES, THERMAL RESISTANCE, IMPACT SHOCK, SINTERING FURNACES, FUSION(MELTING)

Subject Categories : Ceramics, Refractories and Glass
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE