CN201325202Y - 镁合金纳米防腐蚀涂层 - Google Patents
镁合金纳米防腐蚀涂层 Download PDFInfo
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- CN201325202Y CN201325202Y CNU2008201712959U CN200820171295U CN201325202Y CN 201325202 Y CN201325202 Y CN 201325202Y CN U2008201712959 U CNU2008201712959 U CN U2008201712959U CN 200820171295 U CN200820171295 U CN 200820171295U CN 201325202 Y CN201325202 Y CN 201325202Y
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Abstract
一种镁合金纳米防腐蚀涂层，包括底漆层及面漆层，在镁合金表面还附着有高润湿性纳米转化膜层，底漆层和面漆层则依次覆盖在上面，构成多层膜涂装结构。本实用新型的高润湿性纳米转化膜层表面呈微观多孔的交错锯齿状，底漆层在涂覆后渗透到微孔中，纳米转化膜层与底漆层之间微观互锁，结合附着力强。而且，纳米转化膜层的结晶细致，耐盐雾性和耐水性能好，宏观光滑平整，涂装在镁合金外表后可以大大提高镁合金的耐蚀性，涂层不易起泡脱落。
Description
技术领域：
本实用新型涉及一种用于镁合金表面的防腐蚀涂层。
背景技术：
镁及其合金材料具有密度低、比强度和比刚度高、阻尼减振降噪能力强、电磁屏蔽性能优异、易于回收利用等优异的性能，在现代社会中应用越来越广泛。但是镁合金具有较高的化学活泼性，在潮湿环境等情况中很容易腐蚀。现在一般采用在镁合金表面涂覆防腐蚀涂层，以提高镁合金的耐蚀性，但通常的涂层仅包括底漆和面漆，附着性差，不够耐蚀，使用中容易起泡脱落。而且，在涂装过程中还需用到含有六价铬的铬酸盐，六价铬因毒性较大已经禁止使用。
发明内容：
针对现有技术的不足，本实用新型提供一种附着力和耐蚀性较强的镁合金纳米防腐蚀涂层。
本实用新型包括底漆层及面漆层，在镁合金表面还附着有高润湿性纳米转化膜层，底漆层和面漆层则依次覆盖在上面，构成多层膜涂装结构。
本实用新型的高润湿性纳米转化膜层表面呈微观多孔的交错锯齿状，底漆层在涂覆后渗透到微孔中，纳米转化膜层与底漆层之间微观互锁，结合附着力强。而且，纳米转化膜层的结晶细致，耐盐雾性和耐水性能好，宏观光滑平整，涂装在镁合金外表后可以大大提高镁合金的耐蚀性，涂层不易起泡脱落。
下面结合附图和实施例进一步说明本实用新型。
附图说明：
附图是实施例的主结构示意图。
实施例：
如图所示，本实施例是镁合金汽车变速箱上盖的涂层，在镁合金表面附着有高润湿性纳米转化膜层1，底漆层2和面漆层3依次覆盖在上面，构成多层膜涂装结构。
高润湿性纳米转化膜层1由纳米锌粒子和多种磷酸盐组成，厚度为0.1-100μm，本实施例的厚度5.6μm。底漆层2是由磷酸锌、环氧树脂、固化剂等组成的防锈底漆，厚度一般为5-50μm，本实施例厚度为27.5μm。面漆层3的厚度为15.1μm，颜色可以按需使用。
Claims (3)
1、一种镁合金纳米防腐蚀涂层，包括底漆层及面漆层，其特征为：在镁合金表面还附着有高润湿性纳米转化膜层(1)，底漆层(2)和面漆层(3)则依次覆盖在上面，构成多层膜涂装结构。
2、根据权利要求1所述的镁合金纳米防腐蚀涂层，其特征为：高润湿性纳米转化膜层(1)的厚度为0.1-100μm。
3、根据权利要求1或2所述的镁合金纳米防腐蚀涂层，其特征为：底漆层(2)的厚度为5-50μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201712959U CN201325202Y (zh) | 2008-12-27 | 2008-12-27 | 镁合金纳米防腐蚀涂层 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201712959U CN201325202Y (zh) | 2008-12-27 | 2008-12-27 | 镁合金纳米防腐蚀涂层 |
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| Publication Number | Publication Date |
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| CN201325202Y true CN201325202Y (zh) | 2009-10-14 |
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| CNU2008201712959U Expired - Fee Related CN201325202Y (zh) | 2008-12-27 | 2008-12-27 | 镁合金纳米防腐蚀涂层 |
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| CN (1) | CN201325202Y (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104443271A (zh) * | 2014-12-02 | 2015-03-25 | 常熟市常连船舶设备有限公司 | 体积小的舱口盖 |
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2008
- 2008-12-27 CN CNU2008201712959U patent/CN201325202Y/zh not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104443271A (zh) * | 2014-12-02 | 2015-03-25 | 常熟市常连船舶设备有限公司 | 体积小的舱口盖 |
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Granted publication date: 20091014 Termination date: 20131227 |