Aluminum alloy for improving crushing performance of 6008 energy absorption box and preparation method of aluminum alloy
A technology of energy-absorbing boxes and aluminum alloys, which is applied in the field of 6008 energy-absorbing boxes, can solve problems such as poor pressure collapse performance of aluminum alloys and failure to meet customer needs, and achieve the effects of improving pressure collapse performance, optimizing casting conditions, and reducing temperature loss
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[0024] Please refer to figure 1 , which shows a schematic flow chart of the steps of the preparation method of the aluminum alloy for improving the pressure collapse performance of the 6008 crash box according to an embodiment of the present application. According to the raw materials weighed above, an aluminum alloy that improves the pressure collapse performance of the 6008 energy-absorbing box is prepared, and the preparation method 1 of the aluminum alloy that improves the pressure collapse performance of the 6008 energy-absorbing box includes the following steps 101 to 105, wherein:
[0025] Step 101, smelting raw materials and adding refining agent. Put the raw materials into the melting furnace, execute the melting process, set the melting temperature of the melting furnace to 735-780°C, melt the raw materials until they are completely melted, and form aluminum liquid. The melting temperature can be set to 735°C, 750°C or 780°C, but Not limited to this. Then add refin...
Embodiment 1
[0033] 1. The raw material is weighed according to the mass percentage of the strong corrosion-resistant aluminum alloy, and the mass percentage of the raw material is 0.7% of Si, 0.47% of Mg, and the rest of Al;
[0034] 2. Add the raw materials weighed above into the smelting furnace and melt at 750±10°C to obtain an aluminum alloy melt, and add a refining agent to the aluminum alloy melt for 25 minutes. After refining, it floats on the surface Slag removal treatment;
[0035] 3. Convection tank, degassing box, and filter box mold plate are electrically heated and baked. The electric heating temperature is set at 850°C. After baking to 750±10°C, perform hot-top horizontal casting on the aluminum alloy melt. The casting speed is 80±2mm / min, the cooling water flow rate is 4500±100L / min, and the aluminum alloy solid round ingot is obtained after casting;
[0036] 4. Execute the homogenization process, in which the heating temperature is 530±5°C, the holding time is 8h, and aft...
Embodiment 2
[0042] 1. The raw material is weighed according to the mass percentage of the strong corrosion-resistant aluminum alloy, and the mass percentage of the raw material is 0.7% of Si, 0.47% of Mg, and the rest of Al;
[0043] 2. Add the raw materials weighed above into the smelting furnace and melt at 750±10°C to obtain an aluminum alloy melt, and add a refining agent to the aluminum alloy melt for 25 minutes. After refining, it floats on the surface Slag removal treatment;
[0044] 3. Convection tank, degassing box, and filter box mold plate are electrically heated and baked. The electric heating temperature is set at 850°C. After baking to 750±10°C, perform hot-top horizontal casting on the aluminum alloy melt. The casting speed is 80±2mm / min, the cooling water flow rate is 4500±100L / min, and the aluminum alloy solid round ingot is obtained after casting;
[0045]4. Execute the homogenization process, in which the heating temperature is 530±5°C, the holding time is 8h, and afte...
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