E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
26/180
E21B 17/00 (2006.01)
Patent
CA 1278909
ABSTRACT A method for making sucker rods composed of a rod body and end heads, consisting in upsetting the rod body end portions carried out at a temperature that precludes softening of the rod body metal, a thickening being formed on each of said end portions, the width of said thickening in a direction square with the rod body being equal to or in excess of the head maximum diameter in the weld join place, while its length exceeds the width of the heat-affected area involved in the welding process, and a transition portion shaped as a solid of revolution whose cross- -section smoothly and continuously decrease from the thickening towards the rod body. The upsetting procedure is followed by pressure-welding of each of the end beads together with the thickening on the rod body end portion and by turning the weld joint zone.
493244
Avakian Emilia V.
Dzhabarov Rauf D.
Karaev Islam K.o.
Polikhronov Konstantin P.
Rabinovich Avraam M.
Avakian Emilia V.
Azerbaidzhansky Nauchno-Issledovatelsky I. Proektno- Konstruktor
Dzhabarov Rauf D.
Karaev Islam K.o.
Polikhronov Konstantin P.
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