F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
26/155, 189/44
F16L 58/18 (2006.01) F16L 58/08 (2006.01)
Patent
CA 1239100
Abstract of the Disclosure: This invention relates to a corrosion resisting steel pipe having a kind of double construction in which an outer carbon steel pipe member is lined with respect to its whole length with a corrosion resisting material consisting of Ti, and a method of manufacturing the same, and more particularly to a doubly-constructed corrosion resisting steel pipe of a unit length consisting of an outer pipe member composed of an end tube and a general tube joined to the end tube, a short tube of a Ti metal attached to an end portion of the end tube metallurgically by the diffusion welding, and an inner pipe member of a Ti metal attached to the whole of the inner surface of the outer pipe member including the inner surface of the short tube of a Ti metal joined to the end tube, the inner pipe member of a Ti metal being seal-welded with a Ti metal at the end portion of the end tube, a pipe of a predetermined length obtained by connecting the steel pipes of a unit length being sealed at its joint portion with a Ti metal so that the Ti metal overlaps the outer pipe members, the steel pipe according to the invention thus having reliably high sealability and corrosion resistance; and a method of manufacturing such a corrosion resisting steel pipe.
472321
Kuroki Kogyosho Co. Ltd.
Macrae & Co.
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