CN108838051A - 一种铝合金表面喷漆工艺 - Google Patents

一种铝合金表面喷漆工艺 Download PDF

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Publication number
CN108838051A
CN108838051A CN201810729341.0A CN201810729341A CN108838051A CN 108838051 A CN108838051 A CN 108838051A CN 201810729341 A CN201810729341 A CN 201810729341A CN 108838051 A CN108838051 A CN 108838051A
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product
paint
aluminum alloy
epithelium
lacquer spraying
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CN201810729341.0A
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English (en)
Inventor
聂新民
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WUXI DAYAN TECHNOLOGY Co Ltd
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WUXI DAYAN TECHNOLOGY Co Ltd
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Priority to CN201810729341.0A priority Critical patent/CN108838051A/zh
Publication of CN108838051A publication Critical patent/CN108838051A/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/20—Metallic substrate based on light metals
    • B05D2202/25—Metallic substrate based on light metals based on Al
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2502/00—Acrylic polymers

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

本发明涉及铝合金压铸件加工技术领域，具体为一种铝合金表面喷漆工艺，其能够提高喷漆质量，其包括以下步骤：（1）将产品进行皮膜处理生成电镀层；（2）将产品水洗并烘干；（3）在产品表面喷涂油漆；其特征在于，步骤（1）中皮膜液中酸的浓度为7%‑9%，PH值为5.3‑5.5，皮膜处理后在产品表面蚀刻出凹痕；步骤（3）中油漆内丙烯酸酯的含量变为7%‑9%。

Description

一种铝合金表面喷漆工艺
技术领域
本发明涉及铝合金压铸件加工技术领域，具体为一种铝合金表面喷漆工艺。
背景技术
在铝合金压铸产品，因为产品本身是外观件，客户会要求一些特别的外观效果，所以产品在电镀完后，还要喷漆，这样看起来效果会更好，我们知道铝合金产品在喷漆之前要做前道处理，具体为酸洗，皮膜，水洗，把铝合金产品表面的杂质清除，形成一层保护膜，这样喷漆时，漆才会黏附在产品表面，经烘烤后漆会固定在产品上，但铝合金产品电镀后，漆非常难以附着在产品表面，良率非常低，这种电镀后喷漆的工艺的成本高，产品报废多。
发明内容
为了解决现有产品喷漆质量差的问题，本发明提供了一种铝合金表面喷漆工艺，其能够提高喷漆质量。
其技术方案是这样的：一种铝合金表面喷漆工艺，其包括以下步骤：
（1）将产品进行皮膜处理生成电镀层；
（2）将产品水洗并烘干；
（3）在产品表面喷涂油漆；
其特征在于，步骤（1）中皮膜液中酸的浓度为7%-9%，PH值为5.3-5.5，皮膜处理后在产品表面蚀刻出凹痕；步骤（3）中油漆内丙烯酸酯的含量变为7%-9%。
其进一步特征在于，步骤（3）中喷漆完成后做油漆黏附测试，具体步骤为：使用刀片在产品表面划出至少四条纵横交错的划痕，相邻的划痕之间间距为0.8-1mm，将胶带粘在划痕区域，拉扯胶带，如果油漆没有掉落或脱落，则喷漆合格；如果油漆掉落或脱落，则喷漆不合格。
采用本发明的工艺后，通过调整皮膜液中酸的浓度和油漆内丙烯酸酯的含量，使得油漆较好的黏附，产品合格率从原来的30%提升至60%，大大提高了产品喷漆质量。
具体实施方式
一种铝合金表面喷漆工艺，其包括以下步骤：
（1）将产品进行皮膜处理生成电镀层，其中皮膜液中酸的浓度为8%，PH值为5.3-5.5，皮膜处理后在产品表面蚀刻出凹痕；
（2）将产品水洗并烘干；
（3）在产品表面喷涂油漆，油漆中作为增粘剂的丙烯酸酯的含量变为8%；喷漆操作完成后做油漆黏附测试，具体步骤为：使用刀片在产品表面各划出十条纵横交错的划痕，相邻的划痕之间间距为1mm，将胶带粘在划痕区域，拉扯胶带，如果油漆没有掉落或脱落，则喷漆合格；如果油漆掉落或脱落，则喷漆不合格。
在原来的加工过程中，喷漆后产品合格率始终在30%左右，行业内也一直没有提出有效的改进方案，生产出的产品合格率差不多，由于申请人收到客户要求提高合格率，在经过反复试验改进后，结合工程师多年生产经验，花费了大量时间得出上述方案，经过实际操作后发现产品合格率差不多整整提高了一倍，满足了客户要求，原本做这个产品企业是经常亏损，经过改进后，只是增加了一点点加工成本，就可以提高产品合格率，将销售额提高了一倍，使得加工这个产品能够实现盈利，实现了技术上的重大突破。

Claims (2)

1.一种铝合金表面喷漆工艺，其包括以下步骤：
（1）将产品进行皮膜处理生成电镀层；
（2）将产品水洗并烘干；
（3）在产品表面喷涂油漆；
其特征在于，步骤（1）中皮膜液中酸的浓度为7%-9%，PH值为5.3-5.5，皮膜处理后在产品表面蚀刻出凹痕；步骤（3）中油漆内丙烯酸酯的含量变为7%-9%。
2.根据权利要求1所述的一种铝合金表面喷漆工艺，其特征在于，步骤（3）中喷漆完成后做油漆黏附测试，具体步骤为：使用刀片在产品表面划出至少四条纵横交错的划痕，相邻的划痕之间间距为0.8-1mm，将胶带粘在划痕区域，拉扯胶带，如果油漆没有掉落或脱落，则喷漆合格；如果油漆掉落或脱落，则喷漆不合格。
CN201810729341.0A 2018-07-05 2018-07-05 一种铝合金表面喷漆工艺 Pending CN108838051A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112025220A (zh) * 2020-08-28 2020-12-04 上海恬艮网络科技有限公司 一种宠物粮盆的制作工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104662110A (zh) * 2012-07-06 2015-05-27 钢铁应用研究中心股份有限公司 具有内部涂层的用于管线的管以及施涂涂层的方法
CN106362925A (zh) * 2016-11-26 2017-02-01 广州优达涂料有限公司 一种铝材工件喷漆工艺方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104662110A (zh) * 2012-07-06 2015-05-27 钢铁应用研究中心股份有限公司 具有内部涂层的用于管线的管以及施涂涂层的方法
CN106362925A (zh) * 2016-11-26 2017-02-01 广州优达涂料有限公司 一种铝材工件喷漆工艺方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
豆丁网: "水性纳米无磷皮膜剂", 《HTTPS://WWW.DOCIN.COM/P-1582109385.HTML》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112025220A (zh) * 2020-08-28 2020-12-04 上海恬艮网络科技有限公司 一种宠物粮盆的制作工艺

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Application publication date: 20181120