Mineral insulated cable pair twist production technology in same metal sleeve

A mineral insulated cable pair twist production technology in a same metal sleeve belongs to the power cable technology field. A key technology in the invention is a wring pulling process. A torsion apparatus and a disc pulling machine are connected in series so as to carry out linkage production. The torsion apparatus makes the cable be twisted and deformed gradually along a center line so that two parallel wires in the cable are gradually twisted. And then the disc pulling machine is used to carry out hole shrinkage and remove twisted marks of a cable metal sleeve. Finally, annealing is performed, wring pulling is performed again, through several times of wring pulling, a predetermined twist pitch is reached, and the two leads can not touch each other and are wrapped by magnesium oxide in an insulation mode. The technology is advanced and simple and operation is convenient. The cable possesses performance that a work temperature is high; a shielding property is excellent; a radiation resistance capability i