铝的种类有几种?具体点,谢谢!

2025-02-15 14:09:57
推荐回答(1个)
回答1:

根据铝含量纯铝可分为:
高纯铝: ≥99.999℅
工业精铝: 99.95℅~99.996℅
工业纯铝: 99.00℅~99.85℅
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高纯铝
高纯铝的化学成份应符合下表规定;
牌号 化学成分
Al含量% 不小于 杂质含量,不大于,ppm
Si Fe Cu Pb Zn Ga Ti Cd Ag In 总量
Al-05 99.999 2.8 2.8 2.8 0.5 1.0 0.5 1.0 0.2 0.2 0.2 10.0
Al-055 99.9995 Si+Fe+Cu+Zn+Ti+Ga 5.0

重熔用精铝锭(工业高纯铝)
重熔用铝锭应化学成分应符合下表规定
牌 号 化学成分,%
Al不小于 杂质 不大于
Fe Si Cu Zn Ti 其它杂质每种 总和
Al99.996 99.996 0.0010 0.0010 0.0015 0.001 0.001 0.001 0.004
Al99.993 99.993 0.0015 0.0013 0.0030 0.001 0.001 0.001 0.007
Al99.99 99.99 0.0030 0.0030 0.0050 0.002 0.002 0.001 0.04
Al99.95 99.95 0.02 0.02 0.01 0.005 0.002 0.005 0.05
注:
1 、 铝含量按100%与杂质Fe、Si、Cu、Ti、Zn、含量的总和(百分数)之差来计算。
2 、 表中未列其他杂质元素,如需方有特殊要求,可由供需双方协商。
3 、分析数值的判定采用修约比较法,数值修约规则按GB8170第3章的有关规定进行,修约数位与表中所列极限数位一致。

重熔用铝锭(工业纯铝)
重熔用铝锭的化学成分应符合下表的规定。
牌号 化学成分,%
Al不小于 杂质 不大于
Fe Si Cu Ga Mg 其它每种 总和
Al99.85 99.85 0.12 0.08 0.005 0.030 0.030 0.015 0.15
Al99.80 99.80 0.15 0.10 0.01 0.03 0.03 0.02 0.20
Al99.70 99.70 0.20 0.13 0.01 0.03 0.03 0.03 0.30
Al99.60 99.60 0.25 0.18 0.01 0.03 0.03 0.03 0.40
Al99.50 99.50 0.30 0.25 0.02 0.03 0.05 0.03 0.50
Al99.00 99.00 0.50 0.45 0.02 0.05 0.05 0.05 1.00

注:① 铝含量为100.00%与含量等于或大于0.010%的所有杂质的总和。
② 表中未规定的其它杂质元素,如Zn、Mn、Ti等,供方可不做常规分析,但应定期分析。

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