METHOD thermomechanical treatment alloy wire TiNi

摘要

1. A method for thermomechanical processing of the alloy wire of NiTi, comprising forming, in which the wire is heated above the recrystallization temperature of NiTi, characterized in that, before thermoforming metallic wire wound on a cylindrical rod firmly turn to turn, at a temperature of 18-40 ° C while the wire ends are rigidly fixed on the rod, then the rod wire is placed in a muffle furnace chamber and annealed at a temperature of 500-520 ° C for 60 min and then the wire was slowly cooled in the furnace to a temperature of 18-23 ° C and thus obtained termotsikliruyut spring under axial load in the temperature range 90-24 ° C, starting the process at 90 ° C.2. The method of claim 1, wherein said rod is used as a cylindrical rod without pazov.3. A method according to claim 1, characterized in that the wire winding is performed with a constant tension force of 350-400 N