CN109013249A - 一种汽车铝合金轮毂表面哑光涂装方法 - Google Patents
一种汽车铝合金轮毂表面哑光涂装方法 Download PDFInfo
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- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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Abstract
本发明公开了一种汽车铝合金轮毂表面哑光涂装方法,其特征在于包括下述工艺步骤:依次经过铸造、热处理、机械加工、去毛刺、前处理后,再依次进行喷涂哑光漆、烘干即可;所述哑光漆由下述重量份的原料构成:银粉8%,清浆73%,黑色浆10%,黄色浆4%,红色浆1%,砂画粉4%。该发明成本低,工序少,工艺易于控制,涂装质量稳定,成品率高,高效环保。
Description
技术领域
本发明涉及汽车领域,具体地说是一种汽车铝合金轮毂表面哑光涂装方法。
背景技术
在制造汽车铝合金轮毂(即工件)时,为了美观,有时需将其表面涂装成不同效果的外观,哑光就是应用较多的一种外观效果,为了达到这种哑光效果,现在采用的方法是:在涂装时,先在工件的表面喷涂色漆,接着对汽车铝合金轮毂进行烘干,然后,再在喷涂了色漆的工件表面喷涂哑光透明光油,最后再对工件进行烘干,才能达到符合工艺要求的哑光效果的外观;但是,在采用这种涂装方法时,存在如下缺点:一方面,由于涂装工序多,成本高,工艺难以控制,质量不易保证,易产生次品或废品,另一方面,如果在涂装前工件未充分清洗干净时,则在涂装后,在工件的表面极易出现麻点,此时,只能将工件进行脱漆返工,在脱漆返工时,还会对环境造成污染,并且,当出现严重质量问题时,只能报废。
发明内容
本发明的目的就是提供一种成本低、工序少、工艺易于控制、涂装质量稳定、成品率高、高效环保的汽车铝合金轮毂表面哑光涂装方法。
本发明一种汽车铝合金轮毂表面哑光涂装方法包括下述工艺步骤:
a.铸造:在铸造机上采用热铸模具浇注出工件;
b.热处理:先在辊式连续热处理炉中对工件进行固溶处理,炉温在535±5℃之间,固溶处理时间为300分钟,然后,从炉中取出工件,并将其送至淬火槽中进行淬火处理,淬火槽的水温在60~80℃之间,淬火时间为2分钟,淬火完成后,将工件送至辊式连续热处理炉中对其进行人工时效处理,在135±5℃之间的炉温中保温150分钟后让其自然冷却即可;
c.机械加工:在数控车床上对工件进行车削加工,去除工件表面存在缺陷的部分;
d.去毛刺:由人工清除工件的毛刺部分;
e.前处理:依下列顺序进行流水作业处理:先在PH7—PH14的水溶液中进行清洗,然后,在总碱点为5—10的碱水中进行预脱脂,再在总碱点为5~10的碱水中进行主脱脂,接着在PH7~PH8的水溶液中进行水洗一,然后,在PH5.5~PH7.2的水溶液中进行水洗二,再在游离酸点在5~10的酸水中进行酸洗,接着在PH4~PH7的水溶液中进行水洗三,然后,在PH4~PH7的水溶液中进行水洗四,再在PH3.6~PH4.2、总酸点在0.2~1.2的钝化液中进行钝化处理,接着在PH7的水溶液中进行水洗五,然后,在PH7的水溶液中进行水洗六,最后,在温度为140℃的烘干炉中烘烤30分钟;
f.喷漆:用喷漆枪在工件表面喷涂哑光漆;
g.烘干:在温度为180±5℃的烘干炉中烘烤40分钟。
所述步骤f中的哑光漆由下述重量份的原料构成:银粉8%,清浆73%,黑色浆10%,黄色浆4%,红色浆1%,砂画粉4%。
本发明由于采用了由银粉、清浆、黑色浆、黄色浆、红色浆及砂画粉组成的具有哑光效果的油漆,采用这种油漆后,只需进行一次喷漆和一次烘干即可。本发明成本低,工序少,工艺易于控制,涂装质量稳定,成品率高,高效环保。
具体实施方式
本发明一种汽车铝合金轮毂表面哑光涂装方法包括下述工艺步骤:
a.铸造:在铸造机上采用热铸模具浇注出工件;
b.热处理:先在辊式连续热处理炉中对工件进行固溶处理,炉温在535±5℃之间,固溶处理时间为300分钟,然后,从炉中取出工件,并将其送至淬火槽中进行淬火处理,淬火槽的水温在60~80℃之间,淬火时间为2分钟,淬火完成后,将工件送至辊式连续热处理炉中对其进行人工时效处理,在135±5℃之间的炉温中保温150分钟后让其自然冷却即可;
c.机械加工:在数控车床上对工件进行车削加工,去除工件表面存在缺陷的部分;
d.去毛刺:由人工清除工件的毛刺部分;
e.前处理:依下列顺序进行流水作业处理:先在PH7—PH14的水溶液中进行清洗,然后,在总碱点为5—10的碱水中进行预脱脂,再在总碱点为5~10的碱水中进行主脱脂,接着在PH7~PH8的水溶液中进行水洗一,然后,在PH5.5~PH7.2的水溶液中进行水洗二,再在游离酸点在5~10的酸水中进行酸洗,接着在PH4~PH7的水溶液中进行水洗三,然后,在PH4~PH7的水溶液中进行水洗四,再在PH3.6~PH4.2、总酸点在0.2~1.2的钝化液中进行钝化处理,接着在PH7的水溶液中进行水洗五,然后,在PH7的水溶液中进行水洗六,最后,在温度为140℃的烘干炉中烘烤30分钟;
f.喷漆:用喷漆枪在工件表面喷涂哑光漆;
g.烘干:在温度为180±5℃的烘干炉中烘烤40分钟。
所述步骤f中的哑光漆由下述重量份的原料构成:银粉8%,清浆73%,黑色浆10%,黄色浆4%,红色浆1%,砂画粉4%。
Claims (2)
1.一种汽车铝合金轮毂表面哑光涂装方法,其特征在于包括下述工艺步骤:
a.铸造:在铸造机上采用热铸模具浇注出工件;
b.热处理:先在辊式连续热处理炉中对工件进行固溶处理,炉温在535±5℃之间,固溶处理时间为300分钟,然后,从炉中取出工件,并将其送至淬火槽中进行淬火处理,淬火槽的水温在60~80℃之间,淬火时间为2分钟,淬火完成后,将工件送至辊式连续热处理炉中对其进行人工时效处理,在135±5℃之间的炉温中保温150分钟后让其自然冷却即可;
c.机械加工:在数控车床上对工件进行车削加工,去除工件表面存在缺陷的部分;
d.去毛刺:由人工清除工件的毛刺部分;
e.前处理:依下列顺序进行流水作业处理:先在PH7—PH14的水溶液中进行清洗,然后,在总碱点为5—10的碱水中进行预脱脂,再在总碱点为5~10的碱水中进行主脱脂,接着在PH7~PH8的水溶液中进行水洗一,然后,在PH5.5~PH7.2的水溶液中进行水洗二,再在游离酸点在5~10的酸水中进行酸洗,接着在PH4~PH7的水溶液中进行水洗三,然后,在PH4~PH7的水溶液中进行水洗四,再在PH3.6~PH4.2、总酸点在0.2~1.2的钝化液中进行钝化处理,接着在PH7的水溶液中进行水洗五,然后,在PH7的水溶液中进行水洗六,最后,在温度为140℃的烘干炉中烘烤30分钟;
f.喷漆:用喷漆枪在工件表面喷涂哑光漆;
g.烘干:在温度为180±5℃的烘干炉中烘烤40分钟。
2.根据权利要求1所述的一种汽车铝合金轮毂表面哑光涂装方法,其特征在于:所述步骤f中的哑光漆由下述重量份的原料构成:银粉8%,清浆73%,黑色浆10%,黄色浆4%,红色浆1%,砂画粉4%。
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US20130313888A1 (en) * | 2011-01-12 | 2013-11-28 | Topy Industries Ltd. | Method for coating aluminum wheel, and aluminum wheel |
CN104014504A (zh) * | 2014-05-05 | 2014-09-03 | 无锡锦绣轮毂有限公司 | 轮毂表面前处理工艺 |
CN104923464A (zh) * | 2015-07-02 | 2015-09-23 | 大亚车轮制造有限公司 | 哑光黑轮毂的喷涂方法 |
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Patent Citations (6)
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US20080044563A1 (en) * | 2003-12-26 | 2008-02-21 | Bridgestone Corporation | Method of Treating Aluminum-Wheel Surface |
CN101602042A (zh) * | 2009-07-10 | 2009-12-16 | 广州市金钟汽车零件制造有限公司 | 一种汽车轮毂装饰件自动喷粉线及其工艺 |
US20130313888A1 (en) * | 2011-01-12 | 2013-11-28 | Topy Industries Ltd. | Method for coating aluminum wheel, and aluminum wheel |
CN103008202A (zh) * | 2012-06-28 | 2013-04-03 | 天津戴卡轮毂制造有限公司 | 一种铝合金汽车轮毂的制造方法 |
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