表面处理的重要性：

RENHEYOUQIDOUWUFAZAICHULIBULIANGDEBIAOMIANSHANGFAHUN*JIAXINGNENG。ZAIXIUSHI、YOUNIHEZHANWUDEBIAOMIANSHANGTUQI，BULUNZAISHIJIANSHANGHECAILIAOSHANGDOUSHIYIZHONGLANGFEI。CHUFEIBIAOMIANXIANJINGTUOSHANCHULI，FOUZERENHEYOUQIDOUHUIGUOZAOSHIXIAO。

YOUQITIXIYIKAOXIALIEJIBENTEXINGFAHUIQIBAOHUZUOYONG：

      -YUSHIGONGBIAOMIANYOULIANGHAODEFUZHELI。

      -BUTOUSHUI。

      -NENGDIKANGZIRANWUZHIHEQITAJIECHUWUDEQINSHI。

      -NENGDIKANGSHUILIUDEMOSUN。

钢材表面的预处理：

油脂     •可用溶剂（如脂肪烃或松香水等）凊除油脂。但要除去含油脂的溶剂又是一个难题， 用布抹干必须两至三次方才有效，每次都需要用干净的抹布，只抹一次是不够的，而且可能使油污面积更加扩大，情况更糟。可用化学清洗剂来凊除油渍，但一定要确定其对涂层表面无侵蚀作用，通常先将足够的凊洗剂涂在污物上，等它渗入几分钟，然后用清水彻底冲洗，油漆施工前必须凊除所有清洗剂的残迹。

盐类     •应以凊水洗净，以压缩空气吹干。

            •ZAIGANGCAIYUCHULILIUSHUIXIAN，YIPAOWANHUOPENSHACHUXIUFANGFAJIANGYANGHUATIEPITIEXIUJIQITAZAZHIQINGCHUGANJING，RANHOUYONGZHENKONGXICHENQIHUOJINGJINGHUADEYASUOKONGQIJIANGGANGCAIBIAOMIANQINGCHUGANJING。

涂车间底漆   •对预处理的钢材在除锈质量达到要求后，必须立即涂装一道车间底漆，以防在储存、装配涂装过程中钢板生锈，并为涂装后道防锈漆保护好钢板的表面。
 

直接涂装   •釆用分段喷丸或喷砂除锈时，在整个分段的除锈质量达到要求后，可直接涂装第一道防锈漆，而不需要涂装车间底漆。

二次除锈     •涂有车间底漆的钢板表面处理

                   JIANGCHEJIANDIQIBIAOMIANDESHUI、SHIQI、YOUNI、XIU、XINYAN，YONGFENBIHUOYOUQIHUAXIADEJIHAOHEQITAWUGOU，YONGQINGSHUIXIJINGHOUZAIYIRONGJICASHIGANJING。RUGUOCHEJIANDIQIDEQIMO，YINCHUCUN、YUNSHU、CAOZUO、GUNYA、QIEGE、HANJIEDENGGUOCHENGZHONGSHOUDAOSUNHUAIBINGXIUSHISHI，YINGYIFENGDONGGANGSISHUAHUOYUANPANSHALUNDAMOJIDENGQINGLISUNHUAIHEXIUSHIBUFEN，ZAIDADAOCHUXIUZHILIANGDEYAOQIU，JIKETUZHUANGDIYIDAOFANGXIUQI。

表面处理的标准和要求：

WEILEKONGZHIGANGBANBIAOMIANDECHUXIUZHILIANG，MUQIANGUOJISHANG*PUBIANCAIYONGDERUIDIANFUSHIXUEHUI（ Swedish  Corrsionlnstute)CHUBANDE“TUQIGANGBANBIAOMIANCHULIBIAOZHUNTUJIE”（ Pictoriall Surface Preparation Standards for painthig Steel Surfaces) SIS055900-1967 BIAOZHUN。WOGUOZAI 1988 NIANBANBULEYUQIDENGXIAODEGB8923-88《TUZHUANGQIANGANGBANBIAOMIANXIUSHIDENGJIHEFANGXIUDENGJI》GUOJIABIAOZHUN。GAIBIAOZHUNYONGHUAJIESHUOMINGGEZHONGBIAOMIANCHULIDEDENGJI。BIAOSHICHULIDEFANGFASHIGUACHANFA，GANGSISHUACHUXIUFAHUOPENSHACHULIFA，DUIGUACHANFAHEGANGSISHUACHUXIUFAZAIJISHUQIANGUANYIStBIAOSHIQINGJIEDENGJI，DUIPENSHAQINGLIFAZEYONGSaLAIBIAOSHI。DUIGEJIBIAOZHUNDOUYOUMINGQUEDEYIYI。

St2、St+3

Sal., Sa2... Sa2.5、Sa3

Sa3BIAOZHUNSHIPENSHACHULIQUCHUSUOYOUWUWU，JINGZHENKONGXISHOU，KONGQICHUIPENHUOSHUAQUYIQIEFENLIHOU，*ZHONGBIAOMIANCHENGJUNYUNHUISEJINSHUZHUANG。

DANSHIJISHANGZHEIZHONGQINGJIEWANGWANGHENNANDADAO，BIJIAOXIANSHIKEDADAODEBIAOZHUNSHISa2.5。GAIBIAOZHUNYUNXUGANGBANBIAOMIANLIUYOUXIUSHIHUOYANGHUAPICANLIUWU，KANSHANGQUJINSHIXITIAOHUOWEIDIANZHUANG，FENLIQINGJIECHENGDUZEHESa3—YANG。BUTONGDETULIAODUICHUXIUZHILIANGYOUBUTONGDEYAOQIU。SHIGONGQIANDEBIAOMIANCHULIDOUBIXUDADAOTULIAOSUOYAOQIUDEBIAOZHUN，YIBAOZHENGTULIAOFAHUIQI*JIAXINGNENG。