CN112358770A - 一种耐腐蚀防潮电气柜及其制备工艺 - Google Patents
一种耐腐蚀防潮电气柜及其制备工艺 Download PDFInfo
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Abstract
本发明提供了一种耐腐蚀防潮电气柜及其制备工艺,属于电气柜加工技术领域,所述耐腐蚀防潮电气柜基材表面设有耐腐蚀复合层,所述耐腐蚀复合层表面设有耐腐蚀涂料层。该种耐腐蚀防潮电气柜具有较好的耐腐蚀及防潮作用,可延长电气柜使用寿命,并保证电气柜的正常使用;该种耐腐蚀防潮电气柜的制备工艺简单,来源广泛,适宜于工业大规模推广应用。
Description
技术领域
本发明属于电气柜加工技术领域,具体地,涉及一种耐腐蚀防潮电气柜及其制备工艺。
背景技术
电气柜是由钢材质加工而成用来保护元器件正常工作的柜子。电气柜制作材料一般分为热轧钢板和冷轧钢板两种。冷轧钢板相对热轧钢板更材质柔软,更适合电气柜的制作。电气柜用途广泛主要用于化工行业,环保行业,电力系统,冶金系统,工业,核电行业,消防安全监控,交通行业等等。
由于电气柜有的需要在室外长期放置,电气柜长期与雨水潮气接触,会使电气柜表面腐蚀而生锈,从而影响电气柜使用寿命;另外电气柜内设有许多电子元器件,如果电气柜内湿气较重,会影响这些电子元器件的正常运行,严重会导致电路发生短路或漏电,进而影响电气柜的使用安全。因此需要使电气柜具有一定耐腐蚀防潮性能。现有技术中多采用在电气柜表面喷漆的方式进行保护,由于底漆在长期日晒雨淋中会发生剥离脱落,进而影响其保护性能。
发明内容
针对现有技术存在的不足,本发明提供一种耐腐蚀防潮电气柜及其制备工艺,该种耐腐蚀防潮电气柜具有较好的耐腐蚀及防潮作用,可延长电气柜使用寿命,并保证电气柜的正常使用;该种耐腐蚀防潮电气柜的制备工艺简单,来源广泛,适宜于工业大规模推广应用。
为了达到上述目的,本发明通过以下技术方案来实现:一种耐腐蚀防潮电气柜,所述耐腐蚀防潮电气柜基材表面设有耐腐蚀复合层,所述耐腐蚀复合层表面设有耐腐蚀涂料层。基材表面设有耐腐蚀复合层可对基材进行保护,提高其耐腐蚀性能;耐腐蚀涂料可进一步保护耐腐蚀复合层,进一步增强对基材保护。
进一步地,所述耐腐蚀复合层包括纳米锌铝合金粉末及聚四氟乙烯粉末。锌铝合金可对钢材组成的基材表面进行保护,提高其耐腐蚀性能,而且纳米级别的锌铝合金可细化晶粒,增加合金的流动性,使纳米锌铝合金粉末附在基材表面比较光滑;聚四氟乙烯具有优良的化学稳定性、耐腐蚀性、密封性及良好的抗老化耐力,而且表面张力小,可避免水的湿气或者油污粘附在基材表面而腐蚀基材,用在基材表面可显著提高其防潮耐腐蚀性能。
优选地,所述纳米锌铝合金及聚四氟乙烯的重量配比为1.5-3:0.5-1.5。
优选地,所述纳米锌铝合金的粒径为50-100nm。可使铝合金粉末在基材表面分布比较均匀。
优选地,所述纳米锌铝合金中的铝含量为3-5%,杂质含量不超过0.02%。
进一步地,所述耐腐蚀涂料层包括如下重量配比的组分:水性环氧树脂30-40份、植物油酸15-20份、磷酸锌5-10份、乙烯基三胺5-10份、氨乙基哌嗪1-5份、二甲苯1-5份、丁醇1-5份及去离子水35-45份。水性环氧树脂具有较强的附着力,水性环氧树脂里的羟基可与植物油酸的羧酸酯化,以增强粘结力;磷酸锌具有一定防锈作用,与金属基底反应,生成不溶的三代磷酸盐,三代磷酸盐沉积在腐蚀位置上,把腐蚀区封住形成了隔离层,从而阻止了腐蚀的进一步发生;乙烯基三胺及氨乙基哌嗪作为固化剂,可促进涂料的固化;二甲苯及丁醇作为稀释剂可降低粘度,便于使涂料能够均匀涂覆。
本发明还提供了一种耐腐蚀防潮电气柜的制备工艺,制备如上所述的一种耐腐蚀防潮电气柜,包括如下加工步骤:
(1)基材清洁:将电气柜基材表面进行采用热水清洗,再由除油剂进行脱脂除油,除油后由热水清洗表面后将表面烘干;
(2)耐腐蚀复合层的制备:取配比的锌铝合金,经研磨后得到粒径在50-100nm的纳米锌铝合金粉末,取聚四氟乙烯经研磨得到粒径为100-150μm的聚四氟乙烯粉末,将两种粉末按重量配比混合均匀,将混合后的粉末采用喷涂法喷涂在步骤(1)所得基体表面,得到具有耐腐蚀复合层的基体;
(3)耐腐蚀涂料的制备:称取质量配比的水性环氧树脂、植物油酸,搅拌使其混合均匀,再加入质量配比的磷酸锌和去离子水,搅拌使其混合均匀,然后加入质量配比的乙烯基三胺与氨乙基哌嗪,加入完毕再在搅拌过程中加入质量配比的二甲苯及丁醇,搅拌均匀得到耐腐蚀涂料,需密封存放;
(4)耐腐蚀涂料层的制备:将步骤(2)所制得的耐腐蚀复合层表面均匀涂上步骤(3)所制得的耐腐蚀涂料,涂料经烘干后得到具有耐腐蚀涂料层的电气柜。
优选地,所述步骤(1)中的除油剂采用质量浓度为5%-10%的碳酸氢钠溶液。
优选地,所述步骤(2)中的耐腐蚀复合层厚度为15-25μm。
优选地,所述步骤(4)中耐腐蚀涂料层的厚度为0.1-0.2mm。
有益效果:与现有技术相比,本发明具有以下优点:本发明提供的一种耐腐蚀防潮电气柜及其制备工艺,该种耐腐蚀防潮电气柜的基材表面设有耐腐蚀复合层可对基材进行保护,提高其耐腐蚀性能;耐腐蚀涂料可进一步保护耐腐蚀复合层,进一步增强对基材保护;该种耐腐蚀防潮电气柜的制备工艺简单,来源广泛,适宜于工业大规模推广应用。
附图说明
图1为本发明的一种耐腐蚀防潮电气柜结构图。
图中:1基材、2耐腐蚀复合层、3耐腐蚀涂料层。
具体实施方式
下面结合附图和具体实施例,进一步阐述本发明。
实施例1
如图1所示,一种耐腐蚀防潮电气柜,所述耐腐蚀防潮电气柜基材1表面设有耐腐蚀复合层2,所述耐腐蚀复合层2包括纳米锌铝合金粉末及聚四氟乙烯粉末,所述纳米锌铝合金及聚四氟乙烯的重量配比可设为1.5-3:0.5-1.5,所述纳米锌铝合金的粒径可为50-100nm,所述纳米锌铝合金中的铝含量为3-5%,杂质含量不超过0.02%,所述耐腐蚀复合层2表面设有耐腐蚀涂料层3,所述耐腐蚀涂料层3可包括如下重量配比的组分:水性环氧树脂30-40份、植物油酸15-20份、磷酸锌5-10份、乙烯基三胺5-10份、氨乙基哌嗪1-5份、二甲苯1-5份、丁醇1-5份及去离子水35-45份。
实施例2
一种耐腐蚀防潮电气柜的制备工艺,制备如实施例1所述的一种耐腐蚀防潮电气柜,包括如下加工步骤:
(1)基材清洁:将电气柜基材表面进行采用热水清洗,再由除油剂进行脱脂除油,所述除油剂可采用质量浓度为5%的碳酸氢钠溶液,除油后由热水清洗表面后将表面烘干;
(2)耐腐蚀复合层的制备:取锌铝合金,所述纳米锌铝合金中的铝含量为3%,杂质含量不超过0.02%,经研磨后得到粒径在50nm的纳米锌铝合金粉末,取聚四氟乙烯经研磨得到粒径为100μm的聚四氟乙烯粉末,将两种粉末按纳米锌铝合金及聚四氟乙烯的重量配比为1.5:0.5,混合均匀,将混合后的粉末采用喷涂法喷涂在步骤(1)所得基体表面,得到具有耐腐蚀复合层的基体,所述耐腐蚀复合层厚度为15μm;
(3)耐腐蚀涂料的制备:称取30份水性环氧树脂、15份植物油酸,搅拌使其混合均匀,再加入质量配比的5份磷酸锌和35份去离子水,搅拌使其混合均匀,然后加入5份乙烯基三胺与1份氨乙基哌嗪,加入完毕再在搅拌过程中加入1份二甲苯及1份丁醇,搅拌均匀得到耐腐蚀涂料,需密封存放;
(4)耐腐蚀涂料层的制备:将步骤(2)所制得的耐腐蚀复合层表面均匀涂上步骤(3)所制得的耐腐蚀涂料,涂料经烘干后得到具有耐腐蚀涂料层的电气柜基材,所述耐腐蚀涂料层的厚度为0.1mm。
实施例3
一种耐腐蚀防潮电气柜的制备工艺,制备如实施例1所述的一种耐腐蚀防潮电气柜,包括如下加工步骤:
(1)基材清洁:将电气柜基材表面进行采用热水清洗,再由除油剂进行脱脂除油,所述除油剂可采用质量浓度为10%的碳酸氢钠溶液,除油后由热水清洗表面后将表面烘干;
(2)耐腐蚀复合层的制备:取锌铝合金,所述纳米锌铝合金中的铝含量为5%,杂质含量不超过0.02%,经研磨后得到粒径在100nm的纳米锌铝合金粉末,取聚四氟乙烯经研磨得到粒径为150μm的聚四氟乙烯粉末,将两种粉末按纳米锌铝合金及聚四氟乙烯的重量配比可设为3:1.5,混合均匀,将混合后的粉末采用喷涂法喷涂在步骤(1)所得基体表面,得到具有耐腐蚀复合层的基体,所述耐腐蚀复合层厚度为25μm;
(3)耐腐蚀涂料的制备:称取40份水性环氧树脂、20份植物油酸,搅拌使其混合均匀,再加入质量配比的10份磷酸锌和45份去离子水,搅拌使其混合均匀,然后加入10份乙烯基三胺与5份氨乙基哌嗪,加入完毕再在搅拌过程中加入5份二甲苯及5份丁醇,搅拌均匀得到耐腐蚀涂料,需密封存放;
(4)耐腐蚀涂料层的制备:将步骤(2)所制得的耐腐蚀复合层表面均匀涂上步骤(3)所制得的耐腐蚀涂料,涂料经烘干后得到具有耐腐蚀涂料层的电气柜,所述耐腐蚀涂料层的厚度为0.2mm。
实施例4
一种耐腐蚀防潮电气柜的制备工艺,制备如实施例1所述的一种耐腐蚀防潮电气柜,包括如下加工步骤:
(1)基材清洁:将电气柜基材表面进行采用热水清洗,再由除油剂进行脱脂除油,所述除油剂可采用质量浓度为7.5%的碳酸氢钠溶液,除油后由热水清洗表面后将表面烘干;
(2)耐腐蚀复合层的制备:取配比的锌铝合金,所述纳米锌铝合金中的铝含量为4%,杂质含量不超过0.02%,经研磨后得到粒径在75nm的纳米锌铝合金粉末,取聚四氟乙烯经研磨得到粒径为125μm的聚四氟乙烯粉末,将两种粉末按纳米锌铝合金及聚四氟乙烯的重量配比可设为2.2:1,混合均匀,将混合后的粉末采用喷涂法喷涂在步骤(1)所得基体表面,得到具有耐腐蚀复合层的基体,所述耐腐蚀复合层厚度为20μm;
(3)耐腐蚀涂料的制备:称取35份水性环氧树脂、17份植物油酸,搅拌使其混合均匀,再加入质量配比的7份磷酸锌和40份去离子水,搅拌使其混合均匀,然后加入7.5份乙烯基三胺与3份氨乙基哌嗪,加入完毕再在搅拌过程中加入3份二甲苯及3份丁醇,搅拌均匀得到耐腐蚀涂料,需密封存放;
(4)耐腐蚀涂料层的制备:将步骤(2)所制得的耐腐蚀复合层表面均匀涂上步骤(3)所制得的耐腐蚀涂料,涂料经烘干后得到具有耐腐蚀涂料层的电气柜,所述耐腐蚀涂料层的厚度为0.15mm,。
对比例1
本对比例为实施例3的对比例,具体提供了一种耐腐蚀防潮电气柜的制备工艺,其中耐腐蚀复合层中不包含聚四氟乙烯层,其它制备工艺与实施例3中的制备工艺均相同。
对比例2
本对比例为实施例3的对比例,具体提供了一种耐腐蚀防潮电气柜的制备工艺,其中耐腐蚀复合层表面没有耐腐蚀涂料层,其它制备工艺与实施例3中的制备工艺均相同。
对比例3
本对比例为实施例3的对比例,具体提供了一种耐腐蚀防潮电气柜的制备工艺,其中基材表面没有耐腐蚀复合层,仅有耐腐蚀涂料层,其它制备工艺与实施例3中的制备工艺均相同。
性能检测
为了验证本发明所述的耐腐蚀防潮电气柜具有良好的耐腐蚀性及防潮性,将实施例2-4及对比例1-3中所制得的产品,以及基材作为的空白例,通过以下性能测试来评价各项性能,具体实验结果如下表1所示。
表1性能测试结果
耐腐蚀性/h | 涂层附着性 | 外观 | 防潮性/h | |
实施例2 | 480 | 无裂纹、脱落 | 表面平滑 | 560 |
实施例3 | 620 | 无裂纹、脱落 | 表面平滑 | 780 |
实施例4 | 535 | 无裂纹、脱落 | 表面平滑 | 650 |
对比例1 | 423 | 无裂纹、脱落 | 表面平滑 | 256 |
对比例2 | 350 | 无裂纹、脱落 | 表面平滑 | 657 |
对比例3 | 187 | 无裂纹、脱落 | 表面平滑 | 92 |
空白例 | 36 | / | / | 48 |
其中,耐腐蚀性能检测方法为:中性盐雾加速腐蚀试验,执行标准为GB/T10125-1997《人造气氛腐蚀试验盐雾试验》;涂层附着性能检测:采用划刀划十字格法,再用3M胶带粘,看涂层是否出现裂纹、脱落;防潮性能检测方法为:将样品置于湿度室内放置,保持湿度室内温度为48±2℃,湿度为95±3℃,试验一定时间后取出擦干样品表面水分,检查产品表面颜色是否有变化,产品表面是否起泡或腐蚀;对外观的检测为在表面是否平滑,用手触摸无粗糙感,在50倍放大镜下观察表面无凹凸不平的现象。
由以上结果可知,该种制备工艺所制备的电气柜钢材具有较好的耐腐蚀性和防潮性,而且表面涂料层及复合层与基材之间结合牢固,不易脱落,该种制备工艺简单,所得产品具有较好的耐腐蚀性和防潮性,适宜于工业大规模推广。
以上所述仅是本发明的几个实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进,这些改进也应视为本发明的保护范围。
Claims (10)
1.一种耐腐蚀防潮电气柜,其特征在于:所述耐腐蚀防潮电气柜基材表面设有耐腐蚀复合层,所述耐腐蚀复合层表面设有耐腐蚀涂料层。
2.根据权利要求1所述的一种耐腐蚀防潮电气柜,其特征在于:所述耐腐蚀复合层包括纳米锌铝合金粉末及聚四氟乙烯粉末。
3.根据权利要求2所述的一种耐腐蚀防潮电气柜,其特征在于:所述纳米锌铝合金及聚四氟乙烯的重量配比为1.5-3:0.5-1.5。
4.根据权利要求3所述的一种耐腐蚀防潮电气柜,其特征在于:所述纳米锌铝合金的粒径为50-100 nm。
5.根据权利要求4所述的一种耐腐蚀防潮电气柜,其特征在于:所述纳米锌铝合金中的铝含量为3-5 %,杂质含量不超过0.02 %。
6.根据权利要求1所述的一种耐腐蚀防潮电气柜,其特征在于:所述耐腐蚀涂料层包括如下重量配比的组分:水性环氧树脂30-40份、植物油酸15-20份、磷酸锌5-10份、乙烯基三胺5-10份、氨乙基哌嗪1-5份、二甲苯1-5份、丁醇1-5份及去离子水35-45份。
7.一种耐腐蚀防潮电气柜的制备工艺,制备如权利要求1-6任一项所述的一种耐腐蚀防潮电气柜,其特征在于:包括如下加工步骤:
(1)基材清洁:将电气柜基材表面进行采用热水清洗,再由除油剂进行脱脂除油,除油后由热水清洗表面后将表面烘干;
(2)耐腐蚀复合层的制备:取配比的锌铝合金,经研磨后得到粒径在50-100 nm的纳米锌铝合金粉末,取聚四氟乙烯经研磨得到粒径为100-150 μm的聚四氟乙烯粉末,将两种粉末按重量配比混合均匀,将混合后的粉末采用喷涂法喷涂在步骤(1)所得基体表面,得到具有耐腐蚀复合层的基体;
(3)耐腐蚀涂料的制备:称取质量配比的水性环氧树脂、植物油酸,搅拌使其混合均匀,再加入质量配比的磷酸锌和去离子水,搅拌使其混合均匀,然后加入质量配比的乙烯基三胺与氨乙基哌嗪,加入完毕再在搅拌过程中加入质量配比的二甲苯及丁醇,搅拌均匀得到耐腐蚀涂料,需密封存放;
(4)耐腐蚀涂料层的制备:将步骤(2)所制得的耐腐蚀复合层表面均匀涂上步骤(3)所制得的耐腐蚀涂料,涂料经烘干后得到具有耐腐蚀涂料层的电气柜。
8.根据权利要求7所述的一种耐腐蚀防潮电气柜的制备方法,其特征在于:所述步骤(1)中的除油剂采用质量浓度为5%-10%的碳酸氢钠溶液。
9.根据权利要求7所述的一种耐腐蚀防潮电气柜的制备方法,其特征在于:所述步骤(2)中的耐腐蚀复合层厚度为15-25 μm。
10.根据权利要求7所述的一种耐腐蚀防潮电气柜的制备方法,其特征在于:所述步骤(4)中耐腐蚀涂料层的厚度为0.1-0.2 mm。
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