The invention relates to the technical field of heat treatment, in particular to a
nickel alloy bar heat treatment device and a bar heat treatment technology.The
nickel alloy bar heat treatment device comprises a furnace body and a tool
assembly arranged at the bottom of an inner cavity of the furnace body, the upper half portion of the furnace body is a heating cavity, and the
lower half portion of the furnace body is an annealing cavity; the tool
assembly comprises a tool cylinder inserted in the annealing cavity, a carrier plate capable of sliding up and down is arranged in the tool cylinder, a supporting spring is connected to the bottom surface of the carrier plate and the cavity bottom of the tool cylinder, a
motion space is formed between the carrier plate and the cavity bottom of the tool cylinder, an assembling hole is formed in the middle of the carrier plate, and the supporting spring is arranged in the assembling hole. A rotating shaft is installed in the
assembly hole, a friction sleeve is fixed to the rotating shaft, heating, annealing and
oxide skin falling work are completed, the
surface brightness of the
nickel alloy bar is high, if the
nickel alloy bar is a final machined product, the product quality is high, the surface does not need to be polished again, and the finished product efficiency is improved.