Method of making butt welded tubes

Details Method of making butt welded tubes Method of making butt welded tubes

1973-06-29

1976-02-17

Husar, Francis S.

Metal fusion bonding

Process

With shaping

228 175, 228231, 228240, B23K 900, B23K 902

Patent

active

039387240

ABSTRACT:
A butt welded tube is provided having excellent properties by the steps of forming a skelp onto a round shape, butt welding the edges thereof with butt welding rolls, blowing oxygen or air into the weld zone, so that said zone is brought to a melted condition with oxidizing heat based on said blowing and some notches which are formed are blown off with said blowing, and then said tube is passed through a train of reducing rolls to obtain a smooth surface and the required dimension of said tube.

REFERENCES:
patent: 1828977 (1931-10-01), Miller
patent: 2188326 (1940-01-01), Windsor et al.
patent: 2673276 (1954-03-01), Allardt
patent: 2796508 (1957-06-01), Holman et al.
patent: 3069763 (1962-12-01), Reynolds
patent: 3118406 (1964-01-01), Stanton
patent: 3332138 (1967-07-01), Garner
patent: 3350771 (1967-11-01), Durst
patent: 3590622 (1971-07-01), Elge et al.

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