Electric heating – Metal heating – Of cylinders
Patent
1983-10-17
1985-08-13
Shaw, Clifford C.
Electric heating
Metal heating
Of cylinders
219 85, 219110, B23K 1124
Patent
active
045352151
ABSTRACT:
It is necessary to determine the effects of welding pressure in order to control the high-frequency welding process in the manufacture of pipes with longitudinal seams. It has been discovered that measurements of the height of the welding bead provide an approximation that is satisfactory for determining the mass of the bead, which is proportional to welding pressure in known pipe geometry. The height of the bead is transmitted by an optical system to the diode matrix of a commercially available diode-matrix camera. The results are processed to control welding pressure.
REFERENCES:
patent: 3573416 (1971-04-01), Drechsler
Kliesch Wilfried
Koch Friedrich-Otto
Krebs Rolf
Schorr Peter
Strauch, deceased Heinz
Fogiel Max
Hoesch Werke AG
Shaw Clifford C.
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