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Ferrum AG
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Ferrum AG
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Application grantedgrantedCritical
Publication of FR889104ApublicationCriticalpatent/FR889104A/en
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K9/00—Arc welding or cutting
B23K9/02—Seam welding; Backing means; Inserts
B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K9/00—Arc welding or cutting
B23K9/235—Preliminary treatment
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FR889104D1941-03-191942-12-16
Method and device for the welded connection of tubes
ExpiredFR889104A
(en)