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浅谈自泳漆的发展及其涂装工艺


  自泳漆又称自动沉积涂料,70年代由美国Achem公司发明并于70年中期应用于工业涂装,由于同属于水性涂料,故具涂装方法与电泳涂漆相似,但不同电,而是利用化学能将成膜物覆盖在铁制品表面形成涂层。钢铁表面只需除锈后即可涂装,不必进行磷化处理。80年代,美国、加拿大、法国、日本等国已用于汽车零部件涂装,而80年代中期,我国已将自泳涂料用于汽车车身及货箱涂装,应该说我国起步不晚,与国际先进水平差距不大。

  1.JIBENYUANLI

  ZIYONGTULIAOYIBANSHIYOUYOUJIGAOFENZIDESHUIXINGFENSANYEHESHUIXINGTANHEIJIANGPEIZHIERCHENG,ZAICHENJISHI,ZAICAOYEZHONGJIARUZIDONGCHENJIDEHUAXUEFANYINGCAILIAO,RUFeF3、HF、H2O2DENG。TUZHUANGSHI,JIANGTUZHUANGGONGJIANJINZIYUQICAOZHONG,HF、FeF3FUSHIGONGJIANBIAOMIAN,QIZHONGBUFENRONGJIEDEFeHESHUZHIFANYING,SHUZHIHEYANLIAOZHECHUCHENJIYUJINSHUGONGJIANBIAOMIANXINGCHENGSHIMO,QIYUWEIHESHUZHIFANYINGDEBEICAOYEZHONGDEYANGHUAJIYANGHUAXINGCHENGFeF3WENDINGCAOYEZHONG。

  HUAXUEFANYINGSHIRUXIA:

  RONGJIEFANYING:Fe(GONGJIAN)+2HF→Fe2++H2+2F-Fe(GONGJIAN)+2FeF3→3Fe2++6F-

  CHENGMOHOUDEYANGHUAFANYING

  Fe2++SHUZHI→Fe-SHUZHI

  2Fe2++H2O2+2HF→2Fe3+2H2O+2F-2Fe3+6F-→2FeF3

  TUZHUANGZHUYAOGONGYILIUCHENG

  GONGJIANTUOZHI→SHUIXI→CHUNJINGSHUICHONGXI→ZIYONGTUZHUANG→SHUIXI→HOUCHULI→HONGKAO

  RUGONGJIANXUCHUXIUSHI,XUYAOTUOZHIHEZILAISHUICHONGXIHOU,JINXINGSUANXICHUXIUCHULI,RANHOUYONGZILAISHUIXIJINGHOUJIAZHONGHEGONGYI,ZUIHOUCHONGXIJINGHOUZIYONGTUZHUANG。ZIYONGSHIJIAN、CAOTUCANSHU、KAOQIWENDUDENG,ZHUYAOGONGYICANSHU,GENJUBUTONGDECHENGMOWUZUCHENGJINXINGBUTONGDEKONGZHI,YIBANERYAN,CHENJISHIJIANYIBANZAI1-6min,CAOYENONGDU5-15%,GUHUAWENDUYIBANZAI110℃-120℃ZHIJIAN。

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    金多利彩票:0755-2975226013823317535邓生

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