Aluminum alloy plate for battery cover for forming integrated explosion-proof valve and manufacturing method thereof
A technology of aluminum alloy plate and manufacturing method, applied in the direction of battery cover/end cover, manufacturing tools, metal rolling, etc., can solve the problem of valve automatic fracture, etc., achieve small working pressure deviation, excellent resistance to repeated fatigue, and softening during processing excellent effect
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[0104]
[0105] 〔Preparation of test materials〕
[0106] 5 kg of ingots with component compositions of 16 levels (Examples 1-6, Comparative Examples 1-10) were inserted into No. 20 crucibles, and the crucibles were heated in a small electric furnace to melt the ingots. Next, insert a spray gun into the melt, and feed N at a flow rate of 1.0 L / min. 2 The gas was degassed for 5 minutes. Thereafter, it was allowed to rest for 30 minutes, and dross floating to the surface of the melt was removed with a stirring bar. Then, the crucible was taken out from the small electric furnace, the melt was poured into a mold with an inner size of 250×200×30 mm to make an ingot, and the melts of Examples 1 to 6 and Comparative Examples 1 to 10 were obtained from the melt in each crucible. Each test material. The disc samples of these test materials were analyzed for composition by emission spectroscopic analysis. The results are shown in Table 1.
[0107] [Table 1]
[0108]
[0109] ...
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