FIELD: process engineering.
SUBSTANCE: invention relates to tube fabrication by resistance welding and may be sued in producing downhole tubes. To produce tubes with higher-quality welded seam, edges on both sides of strip top and bottom sides in roll gauging with edge guiding element are formed with inclination prior to resistance welding. Forming is performed to allow resistance welding with butt angle between edges carrying from -1° to +1°.
EFFECT: higher efficiency.
28 cl, 12 dwg, 4 tbl
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METHOD OF PRODUCING WELDED TUBES | 0 |
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SU1611486A1 |
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Authors
Dates
2011-03-20—Published
2006-11-09—Filed