High-temperature-resistant Cr-containing lead lithium alloy with excellent die casting performance
A high temperature resistant, alloy technology, applied in the field of alloys, can solve the problems of complex smelting and pouring equipment and processes, toxic gas pollution of the environment, damage to alloy properties, etc.
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Embodiment 1
[0017] A high-temperature-resistant Cr-lead-lithium alloy with excellent die-casting properties smelted at 350 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 2.1wt.%, Cr: 0.3wt.%, Nd: 0.2wt.%, Bi: 0.4wt.%, Co: 0.4wt.%, Si: 0.3wt .%, and the balance is lead. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 350 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 350°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots, and the ingot moves down at a speed of 12m / min. The ingot can be used as a casting raw material for pressure casting in the subsequent process to prepare complex-shaped lead-lithium alloy castings; ...
Embodiment 2
[0020] A high-temperature-resistant Cr-lead-lithium alloy with excellent die-casting properties smelted at 370 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.8wt.%, Cr: 0.2wt.%, Nd: 0.2wt.%, Bi: 0.4wt.%, Co: 0.4wt.%, Si: 0.3wt .%, and the balance is lead. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 370 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 370°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 10m / min. The ingot can be used as a casting raw material for pressure casting in the subsequent process to prepare complex-shaped lead-lithium alloy castings; the ...
Embodiment 3
[0023] A high temperature resistant Cr-containing lead-lithium alloy with excellent die-casting properties melted at 390 degrees. By weight percentage, the chemical composition of the alloy is: Li: 1.8wt.%, Cr: 0.3wt.%, Nd: 0.3wt.%, Bi: 0.4wt.%, Co: 0.5wt.%, Si: 0.4wt% .%, the balance is lead. The preparation method of the alloy: the above-mentioned raw materials are added to the induction furnace protected by the atmosphere, and a silicon carbide crucible is used; the alloy solution is formed by induction heating to 390 degrees, and the electromagnetic stirring effect is used to fully stir for about 10 minutes; After being kept at 390 degrees for 10 minutes, it was cast into the hot top level equipment for semi-continuous casting into the required square ingots and round ingots, and the ingot moving speed was 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare lead-lithium alloy castings with complex shapes; the fi...
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