METHOD OF CONNECTING ENAMELED PIPES Russian patent published in 1998 - IPC

Abstract RU 2104438 C1

FIELD: manufacture of enameled pipes connected in lines by welding. SUBSTANCE: outer surface of bushes prepared for enameling is coated with enamel frit, then bushes are introduced into end sections of pipes, frit is applied to inner surfaces of pipes and enabling is effected at temperature of 850 to 950 C depending on composition of frit, after which ends of pipes are connected by means of fusion welding. EFFECT: enhanced reliability. 3 cl, 1 dwg, 2 tbl

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RU 2 104 438 C1

Authors

Steklov O.I.

Karmazinov N.P.

Sjuj Sh.

Dates

1998-02-10Published

1996-07-10Filed