Shape memory Co-Zn-Al alloy grains reinforced composite Sn-Ag welding material and its prepn process
A technology of memory alloy and particle reinforcement, which is applied in welding equipment, metal processing equipment, welding/cutting media/materials, etc., can solve the problems of increased cost, little effect, and difficulty in uniform compounding of nickel-titanium shape memory alloy particles, etc., to achieve economical Good performance, good wettability effect
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example 1
[0015] The tin and silver with a purity of 99.99% are heated to 1200°C in a vacuum melting furnace under the protection of argon at a mass ratio of 96.5:3.5, and magnetically stirred at the same time to make the alloy composition uniform. Then the water freezes. In order to make the alloy fully uniform, the alloy was turned over and reheated to 1200 ° C to melt, while magnetically stirring and water cooling. This is repeated five times to obtain a button-shaped tin-silver eutectic lead-free solder with a diameter of about 3.0-3.5 cm. Heat the copper-zinc-aluminum shape memory alloy particles (20-50 μm in size) with a mass ratio of 74:22:4 to 800°C in a vacuum environment, keep them warm for 10 minutes, and quickly quench them in water to generate thermoelastic Martensite in the alloy. body, so that it has a two-way shape memory effect between 25°C and 60°C. Then put the prepared copper-zinc-aluminum shape memory alloy particles with a mass ratio of 1% together with the tin-s...
example 2
[0017] The tin and silver with a purity of 99.99% are heated to 1500°C in a vacuum melting furnace under the protection of argon in a mass ratio of 96.5:3.5, and are magnetically stirred at the same time to make the alloy composition uniform. Then the water freezes. In order to make the alloy fully uniform, the alloy was turned over and reheated to 1500°C to melt, while magnetically stirring and water cooling. This is repeated five times to obtain a button-shaped tin-silver eutectic lead-free solder with a diameter of about 3.0-3.5 cm. Heat the copper-zinc-aluminum shape memory alloy particles (20-50 μm in size) with a mass ratio of 74:22:4 to 800°C in a vacuum environment, keep them warm for 10 minutes, and quickly quench them in water to generate thermoelastic Martensite in the alloy. body, so that it has a two-way shape memory effect between 30°C and 80°C. Then put the prepared copper-zinc-aluminum shape-memory alloy particles with a mass ratio of 5% together with tin-sil...
example 3
[0019] The tin and silver with a purity of 99.99% are heated to 1400°C in a vacuum melting furnace under the protection of argon at a mass ratio of 96.5:3.5, and are magnetically stirred at the same time to make the alloy composition uniform. Then the water freezes. In order to make the alloy fully uniform, the alloy was turned over and reheated to 1400°C to melt, while magnetically stirred and water-cooled. This is repeated five times to obtain a button-shaped tin-silver eutectic lead-free solder with a diameter of about 3.0-3.5 cm. Heat the copper-zinc-aluminum shape memory alloy particles (20-50 μm in size) with a mass ratio of 66:28:6 to 800°C in a vacuum environment, keep them warm for 10 minutes, and quickly quench them in water to generate thermoelastic Martensite in the alloy. body, so that it has a two-way shape memory effect between 20°C and 70°C. Then put the prepared copper-zinc-aluminum shape memory alloy particles with a mass ratio of 3% together with tin-silve...
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