Silicon bronze bar and preparation method thereof
A technology of silicon bronze and rod, which is applied in the field of silicon bronze rod and its preparation, can solve problems such as poor friction performance, difficulty in achieving a balance between strength and shape, and difficulty in meeting the use of worms
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Embodiment 1
[0032] The mass percent composition of the silicon bronze rod: Si2.85%, Mn1.25%, Zn0.4%, Ni0.18%, Cr0.28%, Co0.18%, lanthanum cerium rare earth 0.03%, Cu balance.
[0033] Silicon bronze rod preparation steps:
[0034] 1) Smelting: During the smelting process, the electrolytic plate is first added to the furnace. After the copper water is melted, the voltage is increased to 600V, and the liquid surface is covered with baked charcoal to a height of more than 50mm, and the temperature reaches 1300℃~1350℃. Add nickel, chromium, cobalt, manganese, silicon, lanthanum and cerium rare earth into the copper liquid with a pressure spoon, keep it for about 3 minutes, turn on the voltage to 400V, lower the temperature to 1260℃~1320℃, add metal zinc, keep warm, and test the alloy Elemental components, blended until qualified.
[0035] 2) Horizontal continuous casting; casting temperature: 1250 ℃ ~ 1350 ℃, casting speed: 3.0mm / s, pulling time: 1000ms, add cooling water once in the copper sl...
Embodiment 2
[0040] The mass percent composition of the silicon bronze rod: Si2.9%, Mn1.15%, Zn0.45%, Ni0.18%, Cr0.28%, Co0.16%, lanthanum cerium rare earth 0.03%, Cu balance.
[0041] Silicon bronze rod preparation steps:
[0042] 1) Smelting: During the smelting process, the electrolytic plate is first added to the furnace. After the copper water is melted, the voltage is increased to 600V, and the liquid surface is covered with baked charcoal to a height of more than 50mm, and the temperature reaches 1300℃~1350℃. Add nickel, chromium, cobalt, manganese, silicon, lanthanum and cerium rare earth into the copper liquid with a pressure spoon, keep it for about 3 minutes, turn on the voltage to 400V, lower the temperature to 1260℃~1320℃, add metal zinc, keep warm, and test the alloy Elemental components, blended until qualified.
[0043] 2) Horizontal continuous casting; casting temperature: 1250 ℃ ~ 1350 ℃, casting speed: 2.0mm / s, pulling time: 1500ms, add cooling water once in the copper ...
Embodiment 3
[0048] The mass percent composition of the silicon bronze rod: Si3.1%, Mn1.19%, Zn0.47%, Ni0.18%, Cr0.27%, Co0.17%, lanthanum cerium rare earth 0.03%, Cu balance.
[0049] Silicon bronze rod preparation steps:
[0050] 1) Smelting: During the smelting process, the electrolytic plate is first added to the furnace. After the copper water is melted, the voltage is increased to 600V, and the liquid surface is covered with baked charcoal to a height of more than 50mm, and the temperature reaches 1300℃~1350℃. Add nickel, chromium, cobalt, manganese, silicon, lanthanum and cerium rare earth into the copper liquid with a pressure spoon, keep it for about 3 minutes, turn on the voltage to 400V, lower the temperature to 1260℃~1320℃, add metal zinc, keep warm, and test the alloy Elemental components, blended until qualified.
[0051] 2) Horizontal continuous casting; casting temperature: 1270 ℃ ~ 1300 ℃, casting speed: 2.0mm / s, pulling time: 2000ms, add cooling water once in the copper ...
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