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底漆(qi)(qi)(qi)和(he)面(mian)漆(qi)(qi)(qi)的(de)作用(yong)是(shi)不同(tong)的(de),在要(yao)求(qiu)(qiu)上面(mian)也(ye)是(shi)有(you)所區別的(de)。底漆(qi)(qi)(qi):要(yao)求(qiu)(qiu)做到(dao)填充快捷、容易打磨(mo)、減少飛漆(qi)(qi)(qi)。面(mian)漆(qi)(qi)(qi):需要(yao)顏色均勻、流平性好、光澤飽滿。做到(dao)上述的(de)要(yao)求(qiu)(qiu)才能達(da)到(dao)完美的(de)噴(pen)涂(tu)。
噴槍對涂料的橢圓形噴幅主要可分為有三層:最里面一層為濕潤層,中間是霧化層,外面是過噴霧化層。面漆主要是給被涂物件表面著色和裝飾作用;面漆噴槍要(yao)(yao)(yao)求顏色噴(pen)(pen)涂(tu)均(jun)勻,并且流平性(xing)要(yao)(yao)(yao)好,所以面漆噴(pen)(pen)槍(qiang)強調霧化(hua)效(xiao)果,噴(pen)(pen)幅必須(xu)是霧化(hua)層(ceng)應比(bi)濕潤(run)層(ceng)要(yao)(yao)(yao)寬(kuan)大。底(di)漆是填充(chong)(chong)待(dai)涂(tu)物件表面的砂痕或沙眼。底(di)漆噴(pen)(pen)槍(qiang)主要(yao)(yao)(yao)是要(yao)(yao)(yao)求填充(chong)(chong)性(xing)要(yao)(yao)(yao)好、并不強調其過噴(pen)(pen)霧化(hua)太大。底(di)漆噴(pen)(pen)槍(qiang)的噴(pen)(pen)幅必須(xu)是濕潤(run)層(ceng)應比(bi)霧化(hua)層(ceng)要(yao)(yao)(yao)寬(kuan)大,它只需要(yao)(yao)(yao)將(jiang)底(di)漆均(jun)勻地噴(pen)(pen)涂(tu)到(dao)工件的待(dai)涂(tu)表面即可,霧化(hua)層(ceng)應比(bi)濕潤(run)層(ceng)窄(zhai)小,尤其是過噴(pen)(pen)霧化(hua)層(ceng)更不宜過大;底(di)漆噴(pen)(pen)涂(tu)要(yao)(yao)(yao)求填充(chong)(chong)性(xing)要(yao)(yao)(yao)好,而填充(chong)(chong)性(xing)主要(yao)(yao)(yao)靠(kao)濕潤(run)層(ceng)來完成