Preparation method of aluminum alloy strip for low-carbon automobile battery water-cooling plate
A technology for automobile batteries and aluminum alloy strips, which is applied in metal rolling, manufacturing tools, heat treatment equipment, etc., can solve the problem that the mechanical properties of aluminum alloy strips for low-carbon automobile battery water-cooling plates cannot meet user requirements, and the punching formability is not good. Good and other problems, to achieve the effect of low difficulty in production control and stable product quality
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specific Embodiment approach 1
[0014] Embodiment 1: In this embodiment, a method for preparing an aluminum alloy strip for a water-cooled plate of a low-carbon automobile battery is carried out according to the following steps:
[0015] 1. 0.60% to 0.80% Si, 0.40% to 0.60% Fe, 0.60% to 0.80% Cu, 1.30% to 1.60% Mn, 0.01% to 0.05% Zn, 0.10% to 0.20% Ti and the balance by weight Weigh the smelting raw material for Al, and the content of other impurity elements is less than or equal to 0.05%, and then smelt the raw material to obtain the aluminum alloy melt;
[0016] 2. Melting and casting the aluminum alloy solution obtained in step 1 to make an aluminum alloy ingot; wherein the casting temperature is 690°C-720°C, the casting speed is 45-60mm / min, the casting cooling water pressure is 0.003-0.1Mpa, and the cooling Water temperature 20℃~26℃;
[0017] 3. Equalize and roll the aluminum alloy ingot obtained in step 2 to obtain a hot-rolled semi-finished product; the conditions for ingot homogenization are: fixed ...
specific Embodiment approach 2
[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is that step one is 0.76% Si, 0.49% Fe, 0.72% Cu, 1.48% Mn, 0.034% Zn, 0.15% Ti and the balance by weight percentage Al is used as a smelting raw material. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0021] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step two, the casting temperature of the aluminum alloy solution is 700°C, the casting speed is 46mm / min, the casting cooling water pressure is 0.004Mpa, and the cooling water temperature Casting was carried out at 26°C. Others are the same as in the first or second embodiment.
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