CN114410997A - 一种1235a铝合金箔料的生产工艺 - Google Patents
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 63
- 239000011888 foil Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000009749 continuous casting Methods 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 241001024304 Mino Species 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000007670 refining Methods 0.000 claims description 51
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 238000003723 Smelting Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 238000007872 degassing Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- -1 aluminum-titanium-boron Chemical compound 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000011343 solid material Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000676 Si alloy Inorganic materials 0.000 claims description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 3
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005097 cold rolling Methods 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
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Abstract
本生产工艺具有以下优点:(1)选用99.70%铝锭和1235A铝合金余料作为箔料产品的生产料,并在铸造之前对铝合金熔液进行四次精炼处理,提高了箔料产品的产品质量;(2)采用连铸连轧技术,减少了后续冷轧轧制道次,大大提高了箔料产品的生产效率;(3)MINO三连轧轧机的第一机架上的轧制温度在铝合金的结晶温度以上,属于热轧过程,晶粒发生了不完全再结晶,提高了金属塑性,减少了变形抗力,铸轧板料上的晶粒更细密。
Description
技术领域
本发明涉及一种铝合金箔料的生产工艺,具体涉及一种1235A铝合金箔料的生产工艺。
背景技术
目前用于生产1235A铝合金箔料的制作工艺分为两种:一种是熔炼—静置保温—在线净化过滤—铸轧—冷轧—均匀化退火,另一种是熔炼—静置保温—在线净化过滤—大板锭—均匀化退火—热轧—冷轧—退火,这两种制作工艺的生产效率普遍低下,而通过哈兹列特生产线可以优化1235A铝合金箔料的加工步骤,加快箔料产品的生产效率,目前哈兹列特生产线在我国应用极少,生产工艺技术还不成熟。
发明内容
本发明是为了解决现有技术的不足,提供一种1235A铝合金箔料的生产工艺。
一种1235A铝合金箔料的生产工艺,包括以下步骤:
(1)熔炼:往熔炼炉内添加质量百分比分别为70%的电解铝液和30%的固体料,得到铝合金熔液,所述熔炼炉内的温度≤760℃,固体料为99.70%铝锭和 1235A铝合金余料;
(2)一次精炼:将颗粒精炼剂喷入铝合金熔液内进行第一次精炼,所述的铝合金熔液的温度为710±10℃,精炼时间为30±1min,精炼完成后的静置时间>15min,静置后进行第一次扒渣,第一次扒渣后进行取样检测,根据检测结果加入铝铁合金和铝硅合金后搅拌静置5~10min;
(3)二次精炼:将铝合金熔液加热至745±5℃,使用液体精炼机对铝合金熔液进行第二次精炼,并往熔炼炉内注入压力为0.8~1.0bar的氩气,所述的精炼时间为60±2min,液体精炼机均匀喷出四氯化碳的有效时间>55min,精炼完成后静置15±1min,进行第二次扒渣;
(4)三次精炼:将铝合金熔液再次加热至745±5℃后进行倒炉处理,所述的倒炉时间≤40min,倒炉时在铝液流槽内采用颗粒精炼剂进行第三次精炼;
(5)四次精炼:将三次精炼后的铝合金熔液转入保温炉内继续加热至725~ 740℃,采用氯气和氩气的混合气体对铝合金熔液进行第四次精炼,所述氯气和氩气的比例为2:8,并且氩气的压力>6.0bar,精炼时间为60±2min,精炼完成后静置10±1min,进行第三次扒渣;
(6)连铸:使用哈兹列特连铸机将精炼后的铝合金熔液连铸为连铸坯料;
(7)连轧:使用MINO三连轧轧机将连铸坯料轧制成铸轧板料;
(8)铸轧板料经过退火处理后得到1235A铝合金箔料。
优选地,步骤(1)中铝合金熔液的容量≤熔炼炉容量的10%。
优选地,步骤(2)和步骤(4)中颗粒精炼剂的用量分别为1.0±0.1kg/t和 0.5±0.1kg/t。
优选地,步骤(5)中保温炉的进液口处还通入有氮气。
优选地,步骤(5)和步骤(6)之间还包括除气箱处理和过滤箱处理,所述除气箱的温度为710±5℃,除气箱的出口处的氢含量≤0.12ml/(100g*Al)。
优选地,所述除气箱的进口处设有铝钛硼丝,铝钛硼丝的用量为1.8~2.0kg/t。
优选地,步骤(6)中哈兹列特连铸机的前箱铝液温度为696±3℃,铸造冷却水的水温为27~30℃,铸造冷却水的水压为3.1~3.3bar,铸造速度为6.8m/min。
有益效果:本发明公开了一种1235A铝合金箔料的生产工艺,本生产工艺具有以下优点:(1)选用99.70%铝锭和1235A铝合金余料作为箔料产品的生产料,并在铸造之前对铝合金熔液进行四次精炼处理,提高了箔料产品的产品质量;(2) 采用连铸连轧技术,减少了后续冷轧轧制道次,大大提高了箔料产品的生产效率; (3)MINO三连轧轧机的第一机架上的轧制温度在铝合金的结晶温度以上,属于热轧过程,晶粒发生了不完全再结晶,提高了金属塑性,减少了变形抗力,铸轧板料上的晶粒更细密。
具体实施方式
为了加深对本发明的理解,下面结合实施例对本发明作进一步详细详述,该实施例仅用于解释本发明,并不构成对本发明保护范围的限定。
一种1235A铝合金箔料的生产工艺,包括以下步骤:
(1)熔炼:往熔炼炉内添加质量百分比分别为70%的电解铝液和30%的固体料,得到铝合金熔液,所述熔炼炉内的温度≤760℃,固体料为99.70%铝锭和 1235A铝合金余料;
(2)一次精炼:将颗粒精炼剂喷入铝合金熔液内进行第一次精炼,所述的铝合金熔液的温度为710±10℃,精炼时间为30±1min,精炼完成后的静置时间>15min,静置后进行第一次扒渣,第一次扒渣后进行取样检测,根据检测结果加入铝铁合金和铝硅合金后搅拌静置5~10min;
(3)二次精炼:将铝合金熔液加热至745±5℃,使用液体精炼机对铝合金熔液进行第二次精炼,并往熔炼炉内注入压力为0.8~1.0bar的氩气,所述的精炼时间为60±2min,液体精炼机均匀喷出四氯化碳的有效时间>55min,精炼完成后静置15±1min,进行第二次扒渣;
(4)三次精炼:将铝合金熔液再次加热至745±5℃后进行倒炉处理,所述的倒炉时间≤40min,倒炉时在铝液流槽内采用颗粒精炼剂进行第三次精炼;
(5)四次精炼:将三次精炼后的铝合金熔液转入保温炉内继续加热至725~740℃,采用氯气和氩气的混合气体对铝合金熔液进行第四次精炼,所述氯气和氩气的比例为2:8,并且氩气的压力>6.0bar,精炼时间为60±2min,精炼完成后静置10±1min,进行第三次扒渣;
(6)连铸:使用哈兹列特连铸机将精炼后的铝合金熔液连铸为连铸坯料;
(7)连轧:使用MINO三连轧轧机将连铸坯料轧制成铸轧板料;
(8)铸轧板料经过退火处理后得到1235A铝合金箔料。
于本实施例中,步骤(1)中铝合金熔液的容量≤熔炼炉容量的10%。
于本实施例中,步骤(2)和步骤(4)中颗粒精炼剂的用量分别为1.0±0.1kg/t 和0.5±0.1kg/t。
于本实施例中,步骤(5)中保温炉的进液口处还通入有氮气。
于本实施例中,步骤(5)和步骤(6)之间还包括除气箱处理和过滤箱处理,所述除气箱的温度为710±5℃,除气箱的出口处的氢含量≤0.12ml/(100g*Al),除气箱的进口处设有铝钛硼丝,所述铝钛硼丝的用量为1.8~2.0kg/t。
于本实施例中,步骤(6)中哈兹列特连铸机的前箱铝液温度为696±3℃,铸造冷却水的水温为27~30℃,铸造冷却水的水压为3.1~3.3bar,铸造速度为 6.8m/min。
本发明公开了一种1235A铝合金箔料的生产工艺,本生产工艺具有以下优点: (1)选用99.70%铝锭和1235A铝合金余料作为箔料产品的生产料,并在铸造之前对铝合金熔液进行四次精炼处理,提高了箔料产品的产品质量;(2)采用连铸连轧技术,减少了后续冷轧轧制道次,大大提高了箔料产品的生产效率;(3) MINO三连轧轧机的第一机架上的轧制温度在铝合金的结晶温度以上,属于热轧过程,晶粒发生了不完全再结晶,提高了金属塑性,减少了变形抗力,铸轧板料上的晶粒更细密。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (7)
1.一种1235A铝合金箔料的生产工艺,其特征在于,包括以下步骤:
(1)熔炼:往熔炼炉内添加质量百分比分别为70%的电解铝液和30%的固体料,得到铝合金熔液,所述熔炼炉内的温度≤760℃,固体料为99.70%铝锭和1235A铝合金余料;
(2)一次精炼:将颗粒精炼剂喷入铝合金熔液内进行第一次精炼,所述的铝合金熔液的温度为710±10℃,精炼时间为30±1min,精炼完成后的静置时间>15min,静置后进行第一次扒渣,第一次扒渣后进行取样检测,根据检测结果加入铝铁合金和铝硅合金后搅拌静置5~10min;
(3)二次精炼:将铝合金熔液加热至745±5℃,使用液体精炼机对铝合金熔液进行第二次精炼,并往熔炼炉内注入压力为0.8~1.0bar的氩气,所述的精炼时间为60±2min,液体精炼机均匀喷出四氯化碳的有效时间>55min,精炼完成后静置15±1min,进行第二次扒渣;
(4)三次精炼:将铝合金熔液再次加热至745±5℃后进行倒炉处理,所述的倒炉时间≤40min,倒炉时在铝液流槽内采用颗粒精炼剂进行第三次精炼;
(5)四次精炼:将三次精炼后的铝合金熔液转入保温炉内继续加热至725~740℃,采用氯气和氩气的混合气体对铝合金熔液进行第四次精炼,所述氯气和氩气的比例为2:8,并且氩气的压力>6.0bar,精炼时间为60±2min,精炼完成后静置10±1min,进行第三次扒渣;
(6)连铸:使用哈兹列特连铸机将精炼后的铝合金熔液连铸为连铸坯料;
(7)连轧:使用MINO三连轧轧机将连铸坯料轧制成铸轧板料;
(8)铸轧板料经过退火处理后得到1235A铝合金箔料。
2.根据权利要求1所述的一种1235A铝合金箔料的生产工艺,其特征在于,步骤(1)中铝合金熔液的容量≤熔炼炉容量的10%。
3.根据权利要求1所述的一种1235A铝合金箔料的生产工艺,其特征在于,步骤(2)和步骤(4)中颗粒精炼剂的用量分别为1.0±0.1kg/t和0.5±0.1kg/t。
4.根据权利要求1所述的一种1235A铝合金箔料的生产工艺,其特征在于,步骤(5)中保温炉的进液口处还通入有氮气。
5.根据权利要求1所述的一种1235A铝合金箔料的生产工艺,其特征在于,步骤(5)和步骤(6)之间还包括除气箱处理和过滤箱处理,所述除气箱的温度为710±5℃,除气箱的出口处的氢含量≤0.12ml/(100g*Al)。
6.根据权利要求5所述的一种1235A铝合金箔料的生产工艺,其特征在于,所述除气箱的进口处设有铝钛硼丝,铝钛硼丝的用量为1.8~2.0kg/t。
7.根据权利要求1所述的一种1235A铝合金箔料的生产工艺,其特征在于,步骤(6)中哈兹列特连铸机的前箱铝液温度为696±3℃,铸造冷却水的水温为27~30℃,铸造冷却水的水压为3.1~3.3bar,铸造速度为6.8m/min。
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CN113088731A (zh) * | 2021-04-13 | 2021-07-09 | 内蒙古联晟新能源材料有限公司 | 一种铝合金钎焊箔坯料的生产工艺 |
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