A kind of preparation method of lead-silver alloy electrode with low silver content
A lead-silver alloy, silver content technology, applied in electrodes, electrolysis process, electrolysis components and other directions, can solve the problems of uneven current distribution, large power loss, high oxygen evolution potential, and achieve the effect of strengthening fine crystals, low production cost, The effect of simple operation process
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Embodiment 1
[0019] Weigh the raw materials according to the ratio of lead 198g, silver 2g (Pb-1%Ag), put the prepared lead-silver alloy material into the graphite crucible 6, adjust the heating furnace to raise the temperature to 400°C, wait for the material to melt evenly, open The circulating water system 1 cools the horn 4 and the titanium alloy probe 5, sets the ultrasonic frequency to 12KHZ, and the power to 100W. Probe, furnace cooled to room temperature; put the sample in a liquid nitrogen environment, and then cold-rolled at a reduction of 20%; put the rolled sample in a resistance furnace for annealing at 120°C, keep it for 1h, and then The samples were taken out after the furnace cooled down.
[0020] The properties of the lead-silver alloy electrode prepared in this embodiment are: the grain size is 10um, and the resistivity is 2.1542µΩ m, such as figure 2 as shown, figure 2 (a) The metallographic diagram of the sample prepared for this example, figure 2 (b) is the origin...
Embodiment 2
[0024] Weigh the raw materials according to the ratio of lead 198g, silver 2g (Pb-1%Ag), put the prepared lead-silver alloy material into the graphite crucible 6, adjust the heating furnace to raise the temperature to 400°C, wait for the material to melt evenly, open The circulating water system 1 cools the horn 4 and the titanium alloy probe 5, sets the ultrasonic frequency to 12KHZ, and the power to 100W. The probe was cooled to room temperature in the furnace; the sample was placed in a liquid nitrogen environment, and then cold rolled at a reduction of 60%. Put the rolled sample into a resistance furnace for annealing at a temperature of 140°C, keep it warm for 1 hour, and take out the sample after cooling with the furnace.
[0025] The properties of the lead-silver alloy electrode prepared in this example are: the grain size is 5um, and the resistivity is 1.8524µΩ·m.
[0026] Under the same conditions, the performance of the lead-silver alloy electrode obtained only by u...
Embodiment 3
[0029] Weigh the raw materials according to the ratio of lead 198.5g and silver 1.5g (Pb-0.75%Ag), put the prepared lead-silver alloy material into the graphite crucible 6, adjust the heating furnace to raise the temperature to 400°C, and wait for the material to melt evenly , Turn on the circulating water system 1 to cool the horn 4 and the titanium alloy probe 5, set the ultrasonic frequency to 12KHZ, and the power to 100W. When the melt temperature is 370°C, slowly insert the probe into the lead alloy liquid and ultrasonically treat it for 3 minutes. Raise the probe, cool the furnace to room temperature; place the sample in a liquid nitrogen environment, and then conduct cold rolling at a reduction of 80%; put the rolled sample in a resistance furnace for annealing at a temperature of 160°C, and keep it warm After 1h, the samples were taken out after cooling with the furnace.
[0030] The properties of the lead-silver alloy electrode prepared in this example are: the grain ...
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