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<title>两种热镀锌工艺间的比较-武汉迪赛环保新材料股份有限公司,无铬钝化剂,无铬钝化液</title>
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   <h1>两种热镀锌工艺间的比较</h1> 
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       迪赛新材  
      </span><span>  2017-11-20 01:57  </span> </p> 
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    <span style="white-space:normal;">热镀锌是目前国内外广泛采用的可有效提高钢铁耐腐蚀性能的防腐手段。目前热镀锌工艺分为连续热镀锌和批量热镀锌，前者是钢铁材料连续不断地通过锌液进行浸镀，如带钢、钢丝等的热镀锌；后者是将加工好的钢铁构件( 如钢管、输电铁塔件、公路护栏等) 分批浸入锌液进行热镀锌。&nbsp;</span>
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    <span style="white-space:normal;">批量热镀锌产品价格便宜，加工和使用性能优良，在干燥的自然环境中具有优良的防腐蚀能力，在电力、建筑、交通、基础设施等领域得到了广泛的应用。但是在潮湿的环境中镀锌层易腐烛，使其表面形成白色的腐蚀产物或变成灰暗色，影响了镀锌件的外观质量和镀层的抗耐蚀性。为此，通常需要在镀锌层表面制备一层化学稳定性较高的铬酸盐钝化膜以提高其耐蚀性，增加其表面光泽和抗污染能力。</span>
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    <span style="white-space:normal;">然而由于Cr(Ⅵ)的高毒性和高致癌性，已被发达国家逐步禁止使用， Cr(Ⅲ) 钝化虽然降低了钝化膜的毒性，但存在Cr(Ⅲ) 转化成Cr(Ⅵ) 的风险。随着环保要求，需要采取更为理想的环保钝化方法。因此，研究与开发环保型无铬钝化技术是未来批量热镀锌生产技术发展的必然趋势。近年来，国内外科研机构在热镀锌无铬钝化研究方面做了大量试验，取得了较好的研究成果。</span>
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<p>
    <span style="white-space:normal;">迪赛公司前期开发的在连续热镀锌领域应用的环保钝化产品耐蚀性能突出，性能稳定，性价比远远优于进口产品，从2011年开始已经在武钢、首钢等大型钢厂广泛使用。近年来迪赛公司又成功开发出抗腐蚀能力、耐黑变以及耐候性优异的批量热镀锌无铬<a class="tilisoftStation" href="http://www.desytek.com/mobile/product/passivant.html" style="color:red;font-weight:bold" target="_blank">钝化剂</a>，可以为电力、建筑、交通、基础设施等钢铁材料的批量热镀锌生产提供技术支持和产品支撑。</span>
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    <span style="white-space:normal;"><span style="font-family:&quot;line-height:28px;white-space:normal;widows:1;background-color:#F7F7F7;">迪赛环保是中国表面处理环保化替代新技术的开拓者和领航者，专注表面处理领域环保化替代研究18年，环保型表面处理新材料与新技术综合服务商，主要产品包括：</span><span style="font-family:&quot;line-height:28px;white-space:normal;widows:1;background-color:#F7F7F7;">无铬<a class="tilisoftStation" href="http://www.desytek.com/mobile/product/passivant.html" style="color:red;font-weight:bold" target="_blank">钝化剂</a></span>    <span style="font-family:&quot;line-height:28px;white-space:normal;widows:1;background-color:#F7F7F7;">、水性上光油、三价铬电镀液，欢迎拨打咨询热线：</span><b style="font-family:&quot;line-height:28px;white-space:normal;widows:1;background-color:#F7F7F7;"><a href="tel:027-81801908" style="text-decoration-line:none;color:#FF0000;word-wrap:break-word;">027-81801908</a></b>    <span style="font-family:&quot;line-height:28px;white-space:normal;widows:1;background-color:#F7F7F7;">，或点击网站在线客服进行咨询，我们会为您提供专业周到的服务！</span><br>
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