METHOD OF OBTAINING BAR AND METHOD OF OBTAINING THIN WIRE FROM ALLOY OF SYSTEM NICKELTITANIUM VERSATILE BY EFFECT OF THE MEMORY OF FORM AND METHOD OF FABRICATING SUCH A ALLOY

摘要

1. A method of producing a rod of an alloy of nickel-titanium system shape memory effect consisting in that create an alloy with shape memory alloy is made by compression or helical rolling the workpiece in the form of rods, heating it and is made of a preform rod rotary forging in several stages to the desired size with intermediate heating between the preform forging steps, characterized in that the heating of the billet before forging and rotary intermediate heating is performed to 300-500 ° C.2 temperature. A method according to claim 1, characterized in that after reaching a total deformation of 40-90% between the forging step, annealing the workpiece at a temperature of 300-500 ° C for 30-180 minut.3. A method according to claim 1, characterized in that when receiving a rod diameter of 20-40 mm prior to heating of the workpiece for rotary forging and the intermediate heating is carried out in an electric chamber oven for 30-180 minutes and at each step, deformation of 5-25% of a given strain zagotovki.4. A method according to claim 1, characterized in that the preparation of rods 1,6-20 mm diameter preform heating before forging and rotary intermediate heating is carried out in an electric chamber oven for 30-120 minutes, the feeding of heated preforms on the rotary forging is carried through a tubular furnace maintaining blanks temperature 300-500 ° C and at each step, deformation of 5-25% of the predetermined deformation zagotovki.5. A method for producing a wire of an alloy of nickel-titanium shape memory effect consisting in that the bars are made according to any one of claims 1-4 and manufactured therefrom wire volocheniem.6 warm or cold. way of