A kind of high-strength, high-conductivity, high-thermal-stability chromium-zirconium-copper alloy and preparation method thereof
A high thermal stability, chromium zirconium copper technology, applied in the field of alloy materials, can solve the problems of low tensile strength and high temperature stability, poor electrical conductivity and softening temperature, low hardness, tensile strength and high temperature stability, etc. To achieve the effect of good thermal stability, uniform microstructure and high cost performance
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[0031] The preparation method of the high-strength, high-conductivity and high-thermal-stability chromium-zirconium-copper alloy comprises the following steps:
[0032] (1) Melting:
[0033] 1) Put copper in a metal cleaning solution prepared by powdered metal cleaning agent and 35-40°C hot water at a mass ratio of 1:(45-50), remove surface oil with a cotton brush, and then wash it with water And dry the copper with a compressed air gun.
[0034] 2) Furnace loading of raw materials: preheat the crucible in the resistance furnace to 80-110°C, take it out, wrap the weighed chromium powder with copper foil and place it at the bottom of the crucible, and put magnesium particles and copper from step 1) , and any one or more of selenium, nickel, silicon, and iron; then use copper wire to hang the copper bag wrapped with zirconium powder on the tamping rod; put the crucible and the mold with the riser into the furnace body In the middle, seal the furnace.
[0035] 3) Heat up to 10...
Embodiment 1
[0045] A high-strength, high-conductivity, high-thermal-stability chromium-zirconium-copper alloy contains the following components by weight percentage: 9% chromium, 0.3% zirconium, 0.006% magnesium, 0.013% nickel, and the balance is copper.
[0046] Its preparation method is:
[0047] (1) Melting:
[0048] 1) Place the industrial high-purity cathode copper rod in a metal cleaning solution prepared by powdered metal cleaning agent and 35°C hot water at a mass ratio of 1:45, remove the surface oil with a cotton brush, and then wash it with clean water and use Compressed air gun to dry industrial high-purity cathode copper rod.
[0049] 2) Furnace loading of raw materials: Preheat the magnesia crucible in the resistance furnace to 100°C and take it out, wrap the weighed chromium powder with copper foil and place it at the bottom of the magnesia crucible, and put magnesium grains, nickel and step 1) The industrial high-purity cathode copper rod; finally, hang the copper bag wr...
Embodiment 2
[0059] A high-strength, high-conductivity, high-thermal-stability chromium-zirconium-copper alloy contains the following components by weight percentage: 10% chromium, 0.24% zirconium, 0.017% magnesium, 0.008% selenium and iron, and the balance is copper.
[0060] Its preparation method is:
[0061] (1) Melting:
[0062] 1) Place the industrial high-purity cathode copper rod in a metal cleaning solution prepared by powdered metal cleaning agent and 38°C hot water at a mass ratio of 1:48, remove the surface oil with a cotton brush, and then wash it with clean water and use Compressed air gun to dry industrial high-purity cathode copper rod.
[0063] 2) Furnace loading of raw materials: preheat the magnesia crucible in the resistance furnace to 80°C and take it out, wrap the weighed chromium powder with copper foil and place it at the bottom of the magnesia crucible, and put magnesium grains, selenium, iron and the industrial high-purity cathode copper rod of step 1); the copp...
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