Composite heat treatment method applicable to Cu-Cr-Zr alloy wire
A deformation heat treatment, cu-cr-zr technology, applied in the field of composite deformation heat treatment, can solve the problems of lack of content in alloy ultra-fine wire processing and heat treatment methods
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Embodiment 1
[0033] Take 1kg of Φ10mm Cu-0.3wt.%Cr-0.1wt.%Zr alloy wire rod, carry out solid solution treatment in a resistance furnace, the solid solution temperature is 950°C, the holding time is 1h, and quenched; The strip is cold-drawn to Φ2mm, the deformation is 96%, and the deformation of each pass is 12-18%; the coiled wire after cold drawing is put into an argon-protected resistance furnace, and an aging treatment is carried out at 400 ° C. 10h, air-cooled to room temperature, and then subjected to secondary aging treatment, the aging temperature is 450°C, the holding time is 1.5h, air-cooled to room temperature; drawn on a continuous wire drawing machine to Φ0.8mm through 11 passes, and the deformation is 87.75%, the pass deformation is 5-8%, using an annealing furnace protected by inert gas (such as a tube furnace), annealing on-line protected by argon gas, the annealing temperature is 450 ° C for 3s; continuous silver plating; 11 passes were drawn to Φ0.3mm, the deformation was ...
Embodiment 2
[0036] Take 10kg of Φ10mm Cu-0.6wt.%Cr-0.06wt.%Zr alloy wire rod, and carry out solid solution treatment in a resistance furnace. The solution temperature is 960°C, the holding time is 1h, and quenched; The strip is cold-drawn to Φ1.14mm, the deformation is 98.7%, and the deformation of each pass is 11-15%; the coiled wire after cold drawing is put into an argon-protected resistance furnace, and an aging treatment is performed, and the aging temperature is 420°C , heat preservation for 15 hours, air-cooled to room temperature, and then subjected to secondary aging treatment, the aging temperature is 475 ° C, the holding time is 3 hours, air-cooled to room temperature; continuous silver plating; then drawn on a continuous wire drawing machine for 6 passes to Φ0 .7mm, the deformation amount is 62.3%, and the deformation amount per pass is 5-8%. Use an annealing furnace protected by inert gas (such as a tube furnace), and anneal on-line protected by argon gas. The annealing temper...
Embodiment 3
[0039] Take 5kg of Φ6mm Cu-0.2wt.%Cr-0.05wt.%Zr-0.05wt.%Sn alloy wire rod, and carry out solution treatment in a resistance furnace. The solution temperature is 940°C, the holding time is 45min, and quenched; The wire rod after solid solution is cold-drawn to Φ1mm, the deformation is 97.2%, and the deformation of each pass is 12-18%; the cold-drawn coil is put into an argon-protected resistance furnace for aging treatment, and the aging temperature at 475°C, keep warm for 3 hours, air-cool to room temperature; continuously electroplate nickel; draw to Φ0.2mm on a continuous wire drawing machine, the deformation is 96%, and the deformation per pass is 5-8%, using an annealing furnace protected by inert gas (such as Tube furnace), online annealing under the protection of argon, the annealing temperature is 520°C for 2s.
[0040] Using the above composite deformation heat treatment process, a Φ0.2mm nickel-plated copper-chromium-zirconium-tin alloy wire with a tensile strength of...
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