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介绍了上海市高架道路钢筋混凝土构筑物涂料涂装防护工程的表面处理、涂料品种、涂装工序及涂装工艺。 相似文献
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“涂料防腐蚀与涂装”的专题讲座,从本期开始,准备用一年左右的时间将本专题的全部内容讲完.本专题讲座内容有涂料防腐蚀概论、涂料防腐蚀设计与选材、涂料防腐蚀工程的技术管理、建筑钢结构涂装工程、钢结构表面处理标准、混凝土建筑的腐蚀与防护、化工设备与管道的腐蚀与防护、特种贮罐贮柜的涂料防护、城建工程的涂料防护、涂料施工的操作环境条件以及耐蚀涂料品种与发展等.下面讲述本专题的第一讲内容. 相似文献
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新型雷达吸波涂料涂装技术研究 总被引:3,自引:2,他引:1
论述了雷达吸波涂料的一般涂装工艺流程,总结了雷达吸波涂料不同于普通涂料的涂装特点.结合多年涂装技术研究的经验,深入分析了吸波涂料涂装中常见问题产生的因为,提出了喷砂打磨、多次喷涂、阶梯式升温等工艺技术途径,显著提高了雷达吸波涂层的附着力和涂层质量的稳定性,对普通涂料涂装技术的发展也具有一定的指导意义. 相似文献
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南浦大桥 1 986年建造 ,杨浦大桥 1 989年建造 ,一套大桥涂料涂装配套工艺经历了十多年的考验 ,证明涂装设计、施工以及为涂装工程服务的产品质量检测、工程监理、工程质量监督是成功的典范 ,成为钢结构涂料防护的样板。大桥钢结构涂装保护因长期暴露于自然环境中 ,紫外线的照射使涂料中的高分子材料逐渐老化 ,氧、水汽向涂膜渗透 ,使钢材表面锈蚀不断扩大 ,这些因素严重影响了涂膜的附着力 ;涂膜表面的粉化也使色彩失去了当年的鲜艳度。有关部门决定对两座大桥实施涂料工程维修 ,为此 ,广泛进行了维修方案的论证。大桥涂料维修设计思想在突… 相似文献
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海洋平台常用无机富锌涂料施工的注意事项 总被引:1,自引:0,他引:1
无机富锌涂料是海洋平台涂装中经常使用的一种底漆,它不但具有优良的防腐蚀性能,同时也能够形成对基体钢材的阴极保护.无机富锌涂料的固化机理很特殊,因此,对涂装施工要求较高,特别是控制漆膜厚度和保证固化的环境湿度等.本文介绍了海洋平台常用的无机富锌涂料施工中应该注意的问题. 相似文献
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I. Walker 《金属精饰学会汇刊》2013,91(1):397-404
Considerable changes in the painting processes employed in the motor industry are likely to come about through the development of acrylic paints as colour coats, the introduction of water-soluble primers and the employment of electrocoating methods. A brief outline of the progress made in automobile painting in recent years is given, but the major part of the paper concentrates on the electrocoating process, “Die advantages of this process as compared with the processes normally used are discussed and its introduction by the author's organization is described. Process operating conditions, in particular, are dealt with in some detail. 相似文献
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文章对石油储运设备涂装防腐工程的质量监控做了系统阐述,根据工作中遇到的常见石油储运设备防腐工程质量通病提出了自己的建议。 相似文献
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Chromate pigmented paints are commonly used in painting the aluminium parts of the aircrafts. This study is directed to find an alternative inhibitor in place of chromate the most widely used inhibitor in aircraft paints. In that effect sodium benzoate, polyacrylic acid (PAA), strontium chloride, cerium chloride, malic acid, glycin, cobalt sulphate, pyrrol, and quartamin T (alkyl three methyl ammonium chloride) were tried in place of Na2CrO4. The anodic and cathodic polarisation curves were recorded and weight loss measurements were carried out in 0.1 M NaCl solutions with and without inhibitor. Quartamin T, pyrrol and PAA which were observed to provide satisfactory inhibition effect were added to the polyurethane based paints used in the aircraft industry and the Al (2024) alloy painted with this paint was subjected to electrochemical corrosion tests in 0.1 M NaCl. Pyrrol and quartamin T containing paints were observed to give results as good as those obtained with chromate containing paints. 相似文献
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导静电防腐涂料兼具导静电性和防腐性,将其涂覆至材料表面,可以起到消除静电、削弱电磁干扰和防腐蚀等作用。近些年来,随着石油化工产业、电子工业和航空航天等领域的快速发展,静电和腐蚀带来的危害越来越显著,使得导静电防腐涂料受到了广泛的关注。我国在涂料领域的起步较晚,市售导静电涂料的防腐性一般,而防腐涂料的导静电性又不理想。因此,平衡导静电性和防腐性是研发导静电防腐涂料的关键所在。阐述了不同种类导静电防腐涂料的导静电机制和防腐蚀机理;分析了导静电防腐涂料在油罐防腐等领域的应用现状;最后探讨了导静电防腐涂料未来的发展方向,指出研发高性能、低成本、环保型、多功能化的涂料是未来导静电防腐涂料的发展趋势,同时指出对导静电防腐涂料导静电机制和防腐机理的深入研究以及腐蚀寿命预测模型的建立也有利于涂料的研发和工程化应用。 相似文献
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通过SEM和EDS研究了带有划痕的涂装镀锌钢板在海洋大气环境下暴露一年半后,划痕周围涂膜下腐蚀产物的扩展行为,并分别对电镀锌、热镀锌、电镀锌预磷化的材料进行了耐蚀性比较.结果表明,在划痕周围涂膜下镀层的耐蚀性与镀层制作工艺无关,而与镀层厚度有关;涂膜前的预磷化对耐蚀性产生了不利影响;虽然涂膜与镀锌层间发生分离,但对镀层的耐蚀性没有产生影响;海洋大气环境存在的氯容易富集在腐蚀产物的前端,而硫则较均匀的分布在整个腐蚀产物转化区. 相似文献
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The paints are used extensively in various fields, especially for the protection of the oil installations such as the storage reservoirs of crude oil. Reducing possession cost and applying the new hygiene and security standards imply the necessity to deepen the knowledge of the physico‐chemical processes of ageing coatings in the first stage and their impact on the corrosion of the substrate. The tests have been carried out on a primer, and on painted steel plates completely immersed in a 3% NaCl solution. The survey of the water absorption and the kinetics deterioration of the paints have been achieved especially by means of electrochemical impedance spectroscopy under the test of salt spray. The barrier weakness of the primer paint, due to the existence of two capacitive loops observed on the Nyquist's diagrams has been put in evidence. While the study of the resistance of the complete system by the test accelerated in the salt spray shows that the system of painting presents a good resistance up to 196 hours, which is equivalent to 8 years of exposure. 相似文献