Method of magnetically testing tubes during welding wherein the

Details Method of magnetically testing tubes during welding wherein the Method of magnetically testing tubes during welding wherein the

1977-09-12

1979-03-13

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324226, 324240, 228104, G01R 3312

Patent

active

041444949

ABSTRACT:
In electromagnetic testing method for tubes is disclosed, which is used during continuous production of tubing from strip being formed into a tube followed by welding the adjoining edges. A magnetic field is applied from the outside, possibly being a field accompanying the welding process, and a pickup transducer is inserted from the tube forming location to scan the interaction of the penetrating field with the tube particularly the seam and adjacent zones.

REFERENCES:
patent: 1978252 (1934-10-01), Drake
patent: 2719953 (1955-10-01), Waldie
patent: 3619769 (1971-11-01), Kusenberger

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