FIELD: protection of pipe-lines against corrosion. SUBSTANCE: method is based upon deforming shell by rolling in shafts, after being rolled, the shell is introduced into the pipe-line. When introducing the shell into the pipe-line, the shell is sized by drawing. Moreover, linear velocity of drawing excesses over linear velocity of rolling by 1-1,5% EFFECT: improved efficiency of operation. 1 dwg
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Authors
Dates
1995-08-27—Published
1992-05-19—Filed