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    Treatment method for making heat exchanger hydrophilic and heat exchanger treated to be hydrophilic
    2.
    发明公开
    Treatment method for making heat exchanger hydrophilic and heat exchanger treated to be hydrophilic 有权
    一种制备亲水性热交换器过程和由此制成的热交换器

    公开(公告)号：EP1154042A1

    公开(公告)日：2001-11-14

    申请号：EP01111547.4

    申请日：2001-05-11

    申请人： Nippon Paint Co., Ltd. ,  SHOWA DENKO K.K.

    发明人： Kojima, Masahiro, c/o Showa Denko K.K. ,  Sudo, Takashi, c/o Showa Denko K.K. ,  Nakagawa, Shintaro, c/o Showa Denko K.K. ,  Matsukawa, Masahiko ,  Inbe, Toshio ,  Yoshida, Tatsuo

    IPC分类号： C23C22/78 ,  C23C22/83 ,  F28F13/04 ,  B05D7/00

    CPC分类号： C23C22/83 ,  B05D7/51 ,  C23C22/78 ,  F28D17/005 ,  F28F13/18 ,  F28F2245/02

    摘要： A treatment method for hydrophilicity for a heat exchanger which can maintain the deodorizing property and hydrohilicity even after a long-time use, and a heat exchanger thus treated for hydrophilicity by said method are provided. After a previous acidic washing treatment, a heat exchanger is subjected to a chemical transformation treatment to form a chemical conversion coating film using a chromium chromate treatment agent, chromium phosphate treatment agent, or treatment agent of zirconium series, followed by a treatment for hydrophilicity using a treatment agent for hydrophilicity, which contains silica particulates and polymer of vinyl alcohol series in aqueous medium in a weight ratio 30:70∼70:30 and in tot al content of 1∼25 weight percent, and in which said silica particulates are coated with said polymer of vinyl alcohol series, and dispersed as coated particles of the average particle diameter of 5∼1000 nm in aqueous medium, to form the coating film so as to amount to 1∼3 g/m 2 .

    摘要翻译： 提供了用于亲水性的用于热交换器即使经过长时间使用能够保持除臭性能和hydrohilicity的治疗方法，以及热交换器通过所述方法将如此处理为亲水性。 先前的酸性洗涤处理后，一个热交换器进行化学转化处理以形成化学转化膜，使用铬铬酸盐处理剂，磷酸铬处理剂，或治疗锆系列的试剂，随后通过使用用于亲水性的治疗 一处理剂的亲水性，其中包含以重量比30:70 70:30相似并在1相同25重量％死人含量的二氧化硅微粒和在wässrige介质乙烯醇系聚合物，并且其中所述二氧化硅颗粒是涂覆 与乙烯醇系聚合体说，并且分散在wässrige介质5相似1000纳米的平均粒径的涂覆的颗粒，以形成涂层膜，以便达到1同样为3g / m <2>。