CN113198712A - 一种防掉漆的铝板表面喷涂工艺 - Google Patents

一种防掉漆的铝板表面喷涂工艺 Download PDF

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CN113198712A
CN113198712A CN202110416087.0A CN202110416087A CN113198712A CN 113198712 A CN113198712 A CN 113198712A CN 202110416087 A CN202110416087 A CN 202110416087A CN 113198712 A CN113198712 A CN 113198712A
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aluminum plate
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王昌敏
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Jiangsu Angong Curtain Wall New Material Co ltd
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Abstract

本发明涉及铝板生产加工技术领域，尤其涉及一种防掉漆的铝板表面喷涂工艺，解决了现有技术中现有的铝板的表面的漆面耐腐蚀较差，导致漆面会掉落，不适合长时间的使用，且掉漆后的铝板不够美观，且更换铝板不仅麻烦，且会造成不必要的经济支出的问题。一种防掉漆的铝板表面喷涂工艺，包括对铝板进行贴膜和打孔。本发明通过ED1000环氧底漆的混合喷涂，ED1000环氧底漆为溶剂型防腐漆，适用于各类金属表面涂装，附着力强、保证了涂层不脱落，ED1000环氧底漆使铝板的表面提高了抗腐蚀能力，避免了面漆因腐蚀脱落的情况发生，因此符合长时间使用的标准，保证了铝板表面的美观，解决了掉漆后更换铝板的问题和滤板美观性降低的问题，避免了不必要的经济支出。

Description

一种防掉漆的铝板表面喷涂工艺
技术领域
本发明涉及铝板生产加工技术领域，尤其涉及一种防掉漆的铝板表面喷涂工艺。
背景技术
铝及铝合金是当前用途十分广泛的、最经济适用的材料之一。世界铝产量从1956年开始超过铜产量一直居有色金属之首。当前铝的产量和用量(按吨计算)仅次于钢材，成为人类应用的第二大金属；而且铝的资源十分丰富，据初步计算，铝的矿藏储存量约占地壳构成物质的8％以上，铝板是指用铝锭轧制加工而成的矩形板材，分为纯铝板，合金铝板，薄铝板，中厚铝板，花纹铝板。
但是，现有的铝板的表面的漆面耐腐蚀较差，导致漆面会掉落，不适合长时间的使用，且掉漆后的铝板不够美观，且更换铝板不仅麻烦，且会造成不必要的经济支出。
发明内容
本发明的目的是提供一种防掉漆的铝板表面喷涂工艺，解决了现有技术中现有的铝板的表面的漆面耐腐蚀较差，导致漆面会掉落，不适合长时间的使用，且掉漆后的铝板不够美观，且更换铝板不仅麻烦，且会造成不必要的经济支出的问题。
为了实现上述目的，本发明采用了如下技术方案：
一种防掉漆的铝板表面喷涂工艺，包括以下步骤：
S1：对铝板进行贴膜和打孔，将铝板放入工作平台上，利用贴膜机对铝板表面进行贴膜；贴膜完成后，利用打孔机对铝板进行适量打孔，打孔完成后对铝板表面进行打磨和抛光。
S2：浸泡处理，将铝板表面放入浸泡槽中使用40°C、质量分数为3-4%的碳酸氢钠溶液浸泡处理60-72s，再将铝板使用钝化处理液在25-32°C钝化处理25-33min。
S3：清洗处理，浸泡之后，在浸泡槽内制备碳酸氢钠溶液，碳酸氢钠溶液的温度为35-40°C，碳酸氢钠的质量百分比为4-5％，然后将去除油污或其他杂质的铝板放入碳酸氢钠溶液中静置，静置时间为3-4min，静置完成后，将铝板从碳酸氢钠溶液中取出，利用常温下的清水对铝板表面进行冲洗，冲洗过程中，利用软布将铝板表面进行数次擦拭。
S4：烘干处理，冲洗完成后，利用烘干机对铝板表面进行烘干，烘干时的温度保持在30-40°C，烘干的时间为5-10min。
S5：底漆喷涂，通过现有喷涂设备在铝板表面均匀喷涂底漆，以稳定铝板表面层，再使用环氧锌黄底漆喷涂，喷涂时，底漆:底漆固化剂：稀释剂的重量比例为7：2：0.2，加强面漆与铝板表面的附着力，漆层厚度控制在5-10微米范围内，喷涂后在35°C下烘干。
S6：面漆喷涂，首先对氟碳漆专用抗裂腻子溶液进行调配，再使用氟碳漆专用抗裂腻子和ED1000环氧底漆溶液作为底漆对铝板表面进行喷涂，喷涂完成后在35-40°C的环境下进行烘干，烘干完成后，调高铝板所在的环境温度至50-60°C，将铝板静置8-10min，使用氟碳漆溶液作为面漆对铝板表面进行喷涂，漆层厚度控制在25-30微米范围内。
S7：固化处理，将经过S6处理后的铝板送入固化炉进行固化处理，固化温度控制在180°C-250°C范围内，固化时间控制15-25min范围内。
S8：出厂检查，对经过S7处理后的铝板进行检查，保证铝板的出厂质量。
优选的，所述钝化处理液包括处理液A与处理液B，处理液A中硅烷偶联剂质量浓度为1.2-1.5%、混合胺质量浓度4.3-5.8%、二甲基甲酰胺质量浓度1.5-3%，余量为水；处理液B中重铬酸钠的质量浓度8-15%，余量为水，调节pH为4.5-6；使用时，先使用处理液A处理10-15min，然后使用处理液B处理。
优选的，所述面漆按重量计由以下成分制成：聚氨酯丙烯酸酯25-30份、羟基丙烯酸树脂15-20份、水性环氧树脂12-18份、乙二醇乙醚醋酸酯15-21份、稀释剂50-66份、流平剂1-3份、固化剂1-3份消泡剂0.5-1.5份。
优选的，所述的步骤S6中喷涂完成后的烘干时间为5-8min，喷涂的压力保持在0.4-0.45Mp，喷涂的厚度为0.4-0.6mm。
优选的，所述的步骤S6中氟碳漆专用抗裂腻子溶液为氟碳漆专用抗裂腻子和氟碳漆抗裂腻子专用添加剂和水和ED1000环氧底漆的混合物，所述的氟碳漆专用抗裂腻子和氟碳漆抗裂腻子专用添加剂和水和ED1000环氧底漆之间的比例为20：2：7；6，所述氟碳漆溶液为氟碳漆和固化剂和稀释剂的混合物，所述的氟碳漆和固化剂和稀释剂之间的配比为9：2：3。
本发明至少具备以下有益效果：
经过以上预处理、浸泡、清洗、烘干、底漆、面漆和加固步骤处理后的铝板，通过ED1000环氧底漆的混合喷涂，ED1000环氧底漆为溶剂型防腐漆，适用于各类金属表面涂装，附着力强、保证了涂层不脱落，ED1000环氧底漆使铝板的表面提高了抗腐蚀能力，避免了面漆因腐蚀脱落的情况发生，因此符合长时间使用的标准，保证了铝板表面的美观，解决了掉漆后更换铝板的问题和滤板美观性降低的问题，避免了不必要的经济支出。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例一：
一种防掉漆的铝板表面喷涂工艺，包括以下步骤：
S1：对铝板进行贴膜和打孔，对滤板进行生产加工前的预处理；
S2：浸泡处理，对滤板进行浸泡，去除表面的污垢,保证表面的洁净，提高后续底漆喷涂后的附着力；
S3：清洗处理，对铝板全面清洗，保证其表面清洁，去除S2浸泡阶段残留的浸泡液体；
S4：烘干处理，对铝板进行烘干操作，保证其表面的干燥，用以提高漆面的附着；
S5：底漆喷涂，首先喷涂底漆，初步提高铝板提高抗腐蚀能力，且提高漆面附着性；
S6：面漆喷涂，对铝板进行面漆喷涂，通过ED1000环氧底漆的混合喷涂，ED1000环氧底漆为溶剂型防腐漆，适用于各类金属表面涂装，附着力强、保证涂层不脱落；
S7：固化处理，将面漆喷涂之后的铝板进行再次烘干固化，提高耐腐蚀性材料的附着力，提高生产质量；
S8：出厂检查，对铝板进行检查，保证铝板的出厂质量，经过以上预处理、浸泡、清洗、烘干、底漆、面漆和加固步骤处理后的铝板，通过ED1000环氧底漆的混合喷涂，ED1000环氧底漆为溶剂型防腐漆，适用于各类金属表面涂装，附着力强、保证了涂层不脱落，ED1000环氧底漆使铝板的表面提高了抗腐蚀能力，避免了面漆因腐蚀脱落的情况发生，因此符合长时间使用的标准，保证了铝板表面的美观，解决了掉漆后更换铝板的问题和滤板美观性降低的问题，避免了不必要的经济支出。
实施例二
一种防掉漆的铝板表面喷涂工艺，具体包括以下步骤：
S1：对铝板进行贴膜和打孔，将铝板放入工作平台上，利用贴膜机对铝板表面进行贴膜；贴膜完成后，利用打孔机对铝板进行适量打孔，打孔完成后对铝板表面进行打磨和抛光，以提高喷涂前铝板的表面质量；
S2：浸泡处理，将铝板表面放入浸泡槽中使用40°C、质量分数为3-4%的碳酸氢钠溶液浸泡处理60-72s，再将铝板使用钝化处理液在25-32°C钝化处理25-33min，可以将铝板表面的污垢和油脂彻底去除，保证底漆的附着力得以提高；
S3：清洗处理，浸泡之后，在浸泡槽内制备碳酸氢钠溶液，碳酸氢钠溶液的温度为35-40°C，碳酸氢钠的质量百分比为4-5％，然后将去除油污或其他杂质的铝板放入碳酸氢钠溶液中静置，静置时间为3-4min，静置完成后，将铝板从碳酸氢钠溶液中取出，利用常温下的清水对铝板表面进行冲洗，冲洗过程中，利用软布将铝板表面进行数次擦拭，通过常温水清洗，可以有效地去除S2阶段的浸泡剂，保证铝板的清洁；
S4：烘干处理，冲洗完成后，利用烘干机对铝板表面进行烘干，烘干时的温度保持在30-40°C，烘干的时间为5-10min，保证铝板表面的干燥，提高底漆的附着力；
S5：底漆喷涂，通过现有喷涂设备在铝板表面均匀喷涂底漆，以稳定铝板表面层，再使用环氧锌黄底漆喷涂，喷涂时，底漆:底漆固化剂：稀释剂的重量比例为7：2：0.2，加强面漆与铝板表面的附着力，漆层厚度控制在5-10微米范围内，喷涂后在35°C下烘干，底漆喷涂后，再次烘干，提高了底漆的附着力和铝板底漆的质量；
S6：面漆喷涂，首先对氟碳漆专用抗裂腻子溶液进行调配，再使用氟碳漆专用抗裂腻子和ED1000环氧底漆溶液作为底漆对铝板表面进行喷涂，喷涂完成后在35-40°C的环境下进行烘干，烘干完成后，调高铝板所在的环境温度至50-60°C，将铝板静置8-10min，使用氟碳漆溶液作为面漆对铝板表面进行喷涂，漆层厚度控制在25-30微米范围内，通过面漆内混合的ED1000环氧底漆溶液，ED1000环氧底漆溶液为溶剂型防腐漆，适用于各类金属表面涂装，附着力强、保证涂层不脱落；
S7：固化处理，将经过S6处理后的铝板送入固化炉进行固化处理，固化温度控制在180°C-250°C范围内，固化时间控制15-25min范围内，通过固化处理，提高了面漆的附着力和面漆的质量，保证了面漆在铝板上的附着力，有效防止面漆脱落；
S8：出厂检查，对经过S7处理后的铝板进行检查，保证铝板的出厂质量，经过以上步骤处理后的铝板，提高了其抗腐蚀能力，符合长时间使用的标准，可以有效防止，漆面掉落，解决了掉漆后更换铝板的问题，避免了不必要的经济支出。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。

Claims (5)

1.一种防掉漆的铝板表面喷涂工艺，其特征在于，包括以下步骤：
S1：对铝板进行贴膜和打孔，将铝板放入工作平台上，利用贴膜机对铝板表面进行贴膜；贴膜完成后，利用打孔机对铝板进行适量打孔，打孔完成后对铝板表面进行打磨和抛光。
S2：浸泡处理，将铝板表面放入浸泡槽中使用40°C、质量分数为3-4%的碳酸氢钠溶液浸泡处理60-72s，再将铝板使用钝化处理液在25-32°C钝化处理25-33min。
S3：清洗处理，浸泡之后，在浸泡槽内制备碳酸氢钠溶液，碳酸氢钠溶液的温度为35-40°C，碳酸氢钠的质量百分比为4-5％，然后将去除油污或其他杂质的铝板放入碳酸氢钠溶液中静置，静置时间为3-4min，静置完成后，将铝板从碳酸氢钠溶液中取出，利用常温下的清水对铝板表面进行冲洗，冲洗过程中，利用软布将铝板表面进行数次擦拭。
S4：烘干处理，冲洗完成后，利用烘干机对铝板表面进行烘干，烘干时的温度保持在30-40°C，烘干的时间为5-10min。
S5：底漆喷涂，通过现有喷涂设备在铝板表面均匀喷涂底漆，以稳定铝板表面层，再使用环氧锌黄底漆喷涂，喷涂时，底漆:底漆固化剂：稀释剂的重量比例为7：2：0.2，加强面漆与铝板表面的附着力，漆层厚度控制在5-10微米范围内，喷涂后在35°C下烘干。
S6：面漆喷涂，首先对氟碳漆专用抗裂腻子溶液进行调配，再使用氟碳漆专用抗裂腻子和ED1000环氧底漆溶液作为底漆对铝板表面进行喷涂，喷涂完成后在35-40°C的环境下进行烘干，烘干完成后，调高铝板所在的环境温度至50-60°C，将铝板静置8-10min，使用氟碳漆溶液作为面漆对铝板表面进行喷涂，漆层厚度控制在25-30微米范围内。
S7：固化处理，将经过S6处理后的铝板送入固化炉进行固化处理，固化温度控制在180°C-250°C范围内，固化时间控制15-25min范围内。
S8：出厂检查，对经过S7处理后的铝板进行检查，保证铝板的出厂质量。
2.根据权利要求1所述的一种防掉漆的铝板表面喷涂工艺，其特征在于，所述钝化处理液包括处理液A与处理液B，处理液A中硅烷偶联剂质量浓度为1.2-1.5%、混合胺质量浓度4.3-5.8%、二甲基甲酰胺质量浓度1.5-3%，余量为水；处理液B中重铬酸钠的质量浓度8-15%，余量为水，调节pH为4.5-6；使用时，先使用处理液A处理10-15min，然后使用处理液B处理。
3.根据权利要求1所述的一种防掉漆的铝板表面喷涂工艺，其特征在于，所述面漆按重量计由以下成分制成：聚氨酯丙烯酸酯25-30份、羟基丙烯酸树脂15-20份、水性环氧树脂12-18份、乙二醇乙醚醋酸酯15-21份、稀释剂50-66份、流平剂1-3份、固化剂1-3份消泡剂0.5-1.5份。
4.根据权利要求1所述的一种防掉漆的铝板表面喷涂工艺，其特征在于，所述的步骤S6中喷涂完成后的烘干时间为5-8min，喷涂的压力保持在0.4-0.45Mp，喷涂的厚度为0.4-0.6mm。
5.根据权利要求1所述的一种防掉漆的铝板表面喷涂工艺，其特征在于，所述的步骤S6中氟碳漆专用抗裂腻子溶液为氟碳漆专用抗裂腻子和氟碳漆抗裂腻子专用添加剂和水和ED1000环氧底漆的混合物，所述的氟碳漆专用抗裂腻子和氟碳漆抗裂腻子专用添加剂和水和ED1000环氧底漆之间的比例为20：2：7；6，所述氟碳漆溶液为氟碳漆和固化剂和稀释剂的混合物，所述的氟碳漆和固化剂和稀释剂之间的配比为9：2：3。
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