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    • 24. 发明授权
    • Extruded material of aluminum alloy for structural members of automobile body and method of manufacturing the same
    • 汽车车身结构件铝合金挤压材料及其制造方法
    • US06607615B1
    • 2003-08-19
    • US09331966
    • 1999-08-06
    • Yoichiro BekkiKazuhisa KashiwazakiNobuaki OharaNoboru Hayashi
    • Yoichiro BekkiKazuhisa KashiwazakiNobuaki OharaNoboru Hayashi
    • C22C2102
    • C22C21/02C22F1/043
    • There is disclosed an aluminum alloy extruded material for structural members of automotive bodies, which is composed of an aluminum alloy containing more than 2.6 wt % but 4.0 wt % or less of Si and more than 0.3 wt % but 1.5 wt % or less of Mg, further, (i) containing Mn, Zn, Cu, and Fe each in a given amount, or (ii) containing Zn, Cu, and Fe each in a given amount and containing at least one selected from among Mn, Cr, Zr, and V in a given amount, and the balance being made of Al and unavoidable impurities, which material has a given conductivity and a given melting start temperature. There is also disclosed a method for producing the extruded material, in which after an aluminum alloy ingot of the above composition is subjected to a homogenizing treatment at given conditions, it is cooled, heated again, and subjected to hot extrusion at given conditions. The extruded material is excellent in spot weldability and surface treatment property, such as the chemical conversion property and degreasing property, and it has high mechanical strength and ductility, and is excellent in impact absorbability and/or bendability.
    • 公开了一种用于汽车车身结构件的铝合金挤压材料,其由含有大于2.6重量%但为4.0重量%以下的Si且大于0.3重量%但为1.5重量%以下的Mg 另外,(i)含有给定量的Mn,Zn,Cu和Fe,或者(ii)含有给定量的Zn,Cu和Fe,并且含有选自Mn,Cr,Zr中的至少一种 ,V为一定量,余量为Al和不可避免的杂质,该材料具有给定的导电率和给定的熔融开始温度。 还公开了一种挤出材料的制造方法,其中在给定条件下对上述组合物的铝合金锭进行均化处理后,再次冷却,再加热,并在给定条件下进行热挤压。 挤出材料的点焊性和表面处理性优异,如化学转化性和脱脂性,并且具有高的机械强度和延展性,并且具有优异的冲击吸收性和/或弯曲性。
    • 25. 发明授权
    • Aluminum alloy sheet with excellent formability and method for
manufacture thereof
    • 成形性优良的铝合金板及其制造方法
    • US6110297A
    • 2000-08-29
    • US317651
    • 1999-05-24
    • Noboru HayashiKunihiro YasunagaHiden YoshidaHidetoshi UchidaHideo Itoh
    • Noboru HayashiKunihiro YasunagaHiden YoshidaHidetoshi UchidaHideo Itoh
    • C23C22/00
    • C10M173/02C22C21/00C22C21/02C22F1/00C22F1/04C22F1/05C10M2205/14C10M2205/18C10M2213/00C10M2217/045C10M2217/0453C10M2229/02C10N2220/082C10N2250/08C10N2250/121
    • The invention provides an aluminum alloy sheet that has excellent formability, high coat-baking hardenability, excellent corrosion resistance, and is particularly suitable for external automobile body plates. The aluminum alloy sheet comprises: 0.9 to 1.3 wt. % of Si, 0.4 to 0.6 wt. % of Mg, 0.05 to 0.15 wt. % of Mn, 0.01 to 0.1 wt. % of Ti, with the remainder comprising Al and inevitable impurities, while limiting Fe as an impurity to 0.2 wt. % or less and Cu as an impurity to 0.1 wt. % or less. The aluminum homogenizing an aluminum ingot with the above-described composition; cooling the homogenized ingot to a temperature of 450.degree. C. or below to begin hot-rolling; finishing hot-rolling in a temperature range from 250 to 350.degree. C.; applying intermediate annealing to the hot-rolled plate; conducting cold-rolling at a draft of 70% or more; applying a solid solution treatment followed by quenching the alloy sheet and holding it at 530.degree. C. or above for 60 sec. or less; forming a chromate film onto the quenched alloy sheet; forming a film of a lubricant containing a water-dispersible polyurethane resin and a natural wax onto the chromate film; then applying a heat treatment to the coated alloy sheet in a temperature range of from 200 to 240.degree. C. for 60 sec. or less.
    • 本发明提供一种铝合金板,其具有优异的成形性,高涂层烧结淬透性,优异的耐腐蚀性,特别适用于外部汽车车身板。 铝合金板包括:0.9〜1.3重量% Si%,0.4〜0.6wt。 %的Mg,0.05〜0.15wt。 Mn%,0.01〜0.1重量% %的Ti,剩余部分包含Al和不可避免的杂质,同时将Fe作为杂质限制在0.2wt。 %以下,Cu为杂质至0.1重量%。 % 或更少。 铝均匀化具有上述组成的铝锭; 将均质锭冷却至450℃以下的温度,开始热轧; 在250〜350℃的温度范围内进行热轧。 对热轧板进行中间退火; 以70%以上的吃水进行冷轧; 进行固溶处理,然后淬火合金板并将其保持在530℃以上60秒。 或更少; 在淬火的合金板上形成铬酸盐膜; 在铬酸盐膜上形成含有水分散性聚氨酯树脂和天然蜡的润滑剂膜; 然后在200〜240℃的温度范围内对涂布的合金板进行热处理60秒。 或更少。