CN108677177A - 卷盘铝带表面处理工艺 - Google Patents
卷盘铝带表面处理工艺 Download PDFInfo
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- C25D11/02—Anodisation
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- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
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Abstract
本发明公开了一种卷盘铝带表面处理工艺,包括如下工艺步骤:对铝带行化学抛光处理;对抛光后的铝带进行清洗;对清洗后的铝带进行冷却钝化处理;对钝化后的铝带进行清洗;对清洗后的铝带进行氧化处理;对氧化处理后的铝带进行清洗;对清洗后的铝带进行二次钝化处理,在氧化膜表面形成钝化膜;对钝化后的铝带进行清洗,去除铝带上的酸液;对清洗后的铝带进行高温封孔,使氧化膜上的孔封闭,在铝带表面形成保护膜;牵引高温封孔后的卷盘铝带,收带形成成品卷盘铝带。本发明具有绝缘、抗酸碱、抗老化的功能,成型的卷盘铝带在施工现场加工成铝制品后即可安装使用,解决了现有技术中铝带成型铝制品后再进行表面处理存在的不便于运输的问题。
Description
技术领域
本发明涉及一种对铝带表面进行处理的工艺,尤其涉及一种卷盘铝带表面处理工艺。
背景技术
现有技术中,制备铝合金门窗时,在通常的方法中首先由铝带冲压成型为相应的成型件,接着在成型件上进行进一步的表面层预处理和涂覆,即先制备铝带,再将铝带定尺、定形后成型为成型件,再对成型件进行表面处理。比如,在生产铝合金门片中,先将铝带定尺、定形后再成型为门片,再进行传统的抛光和氧化处理。采用现有的制备工艺,每生产一吨产品,需要耗损铝材3-5公斤,另外抛光和钝化时需要硫酸220公斤,硝酸20公斤,磷酸60公斤,采用成型后的门片进行后序加工时,一吨产品需要一吨清洗水进行冲洗,80%的酸液进入处理水中,由于一吨产品需要一吨清洗水进行冲洗,冲洗产品时造成大量的污染水,污染水要达到排放标准时,一吨清洗水需用10个沉淀池进行处理,并且需用碱80公斤,缓凝剂40公斤,沉淀剂8公斤,石灰石30公斤等,加大了生产成本。并且采用现有的制备工艺,对成型件进行运输时,由于运输的是成型的产品,堆头多、体集大,易造成产品挽松,不仅影响产品质量,还造成运输不方便。
中国专利申请号为“200480043945.6”公开了一种应用卷涂工艺制备具有装饰表面的耐候和耐蚀的铝或铝合金成型板件的方法,其顺序包括下列步骤:提供铝或铝合金带材,需要时对带材连续去油,需要时对需要时经去油的带材进行电化学、化学或机械抛光,对需要时经去油和/或抛光的带材进行连续预处理以产生适合作为漆层的粘附基底的预处理层,对经预处理的带材连续涂以由聚硅氧烷组成的溶胶-凝胶漆以产生第一保护层,在通风炉中连续干燥和硬化该第一保护层,通过下列步骤制备板件:a.成型具有第一保护层的带材,并截下需要时进一步成型的板件,或b.由具有第一保护层的带材上剪切该板件,并成型剪切下的板件,对成型板件涂以由聚硅氧烷组成的溶胶-凝胶漆以产生第二保护层,在炉中干燥和硬化该第二保护层。该专利技术仍然没有解决现有铝合金门窗的制备工艺中存在的上述问题。
发明内容
本发的目的在于克服现有铝带成型件存在的上述问题,提供一种卷盘铝带表面处理工艺。本发明在铝带表面形成一层保护膜,具有绝缘、抗酸碱、抗老化的功能,本发明成型的卷盘铝带在施工现场加工成铝制品后即可安装使用,解决了现有技术中铝带成型铝制品后再进行表面处理存在的不便于运输的问题,生产工艺中可对废料再次利用,大大减少了废酸等液料的排放和浪费,铝带损耗率低,具有环保、节能和低耗的优点。
为实现上述目的,本发明采用的技术方案如下:
一种卷盘铝带表面处理工艺,其特征在于包括如下工艺步骤:
a、抛光:牵引卷盘铝带的始端,使铝带从始端到未端进行化学抛光处理;b、清洗:对抛光后的铝带进行清洗,去除铝带上的酸液;c、冷却钝化:对清洗后的铝带进行冷却钝化处理,在铝带表面形成钝化膜;d、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;e、氧化处理:对清洗后的铝带进行氧化处理,在铝带表面形成氧化膜;f、清洗:对氧化处理后的铝带进行清洗,清洗铝带表面的酸液;g、钝化:对清洗后的铝带进行二次钝化处理,在氧化膜表面形成钝化膜;h、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;i、高温封孔:对清洗后的铝带进行高温封孔,使氧化膜上的孔封闭,在铝带表面形成保护膜;j、收带成捆:牵引高温封孔后的卷盘铝带,收带形成成品卷盘铝带。
所述待处理的卷盘铝带放置在放带架上,通过牵引机牵引卷盘铝带的始端,使卷盘铝带运动,被牵引的铝带通过装有酸液的抛光槽进行抛光操作,抛光后的铝带通过第一清洗池清洗后,在第一钝化池中进行冷却钝化处理,冷却钝化处理后的铝带被牵引通过第二清洗池清洗后,牵引通过装有酸液的氧化槽进行氧化处理,氧化处理后的铝带被牵引通过第三清洗池清洗后,再通过装有酸液的第二钝化池进行二次钝化处理,二次钝化处理后的铝带被牵引通过第四清洗池清洗后,在烘箱中进行高温封孔,最后通过收带机收带形成成品卷盘铝带。
采用本发明的有益效果在于:
一、本发明采用流水线作业,整个工艺可在一条生产线上完成,也可根据实际需要将整个工艺分成两段,在生产过程中基本达到无废气、废水、废烟排出,大大节约了原材料的耗损和环境污染,具有环保、节能、低耗的优点。
二、本发明采用平整的铝带进行流水线生产,在生产过程中用平整光滑的铝带生产,改变传统工艺中的使铝带成形后,再定尺、定形,人工操作使产品弯曲凹凸,本发明采用流水线生产,对整个工艺中的各种液料进行回收,回收率达百分之九十五,大大减少了废酸等液料的排放和浪费,剩余百分之五的液料通过钝化处理从而达到再次利用,达到基本无废水排放。
具体实施方式
实施例
一种卷盘铝带表面处理工艺,包括如下工艺步骤:
a、抛光:牵引卷盘铝带的始端,使铝带从始端到未端进行化学抛光处理;b、清洗:对抛光后的铝带进行清洗,去除铝带上的酸液;c、冷却钝化:对清洗后的铝带进行冷却钝化处理,在铝带表面形成钝化膜;d、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;e、氧化处理:对清洗后的铝带进行氧化处理,在铝带表面形成氧化膜;f、清洗:对氧化处理后的铝带进行清洗,清洗铝带表面的酸液;g、钝化:对清洗后的铝带进行二次钝化处理,在氧化膜表面形成钝化膜;h、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;i、高温封孔:对清洗后的铝带进行高温封孔,使氧化膜上的孔封闭,在铝带表面形成保护膜;j、收带成捆:牵引高温封孔后的,收带形成成品卷盘铝带。
Claims (1)
1.一种卷盘铝带表面处理工艺,其特征在于包括如下工艺步骤:
a、抛光:牵引卷盘铝带的始端,使铝带从始端到末端进行化学抛光处理;b、清洗:对抛光后的铝带进行清洗,去除铝带上的酸液;c、冷却钝化:对清洗后的铝带进行冷却钝化处理,在铝带表面形成钝化膜;d、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;e、氧化处理:对清洗后的铝带进行氧化处理,在铝带表面形成氧化膜;f、清洗:对氧化处理后的铝带进行清洗,清洗铝带表面的酸液;g、钝化:对清洗后的铝带进行二次钝化处理,在氧化膜表面形成钝化膜;h、清洗:对钝化后的铝带进行清洗,去除铝带上的酸液;i、高温封孔:对清洗后的铝带进行高温封孔,使氧化膜上的孔封闭,在铝带表面形成保护膜;j、收带成捆:牵引高温封孔后的卷盘铝带,收带形成成品卷盘铝带;
所述c步骤和g步骤中钝化采用的酸液为浓硝酸、浓硫酸或其混合物;所述e步骤的氧化处理是在低电压高电流的酸液中进行,酸液为浓硝酸、浓硫酸或其混合物;所述j步骤中是在100度-300度下完成高温封孔。
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CN112848189A (zh) * | 2020-12-21 | 2021-05-28 | 安徽裕佳铝塑科技有限公司 | 一种口红包装用铝塑复合管的加工工艺 |
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