鋼桶表面的除銹

鋼(gang)桶表面(mian)(mian)在涂(tu)裝(zhuang)前(qian)(qian)容易(yi)被氧(yang)化(hua)和(he)腐蝕(shi)，其表面(mian)(mian)的(de)(de)氧(yang)化(hua)皮(pi)和(he)鐵(tie)(tie)(tie)銹主要是(shi)氧(yang)化(hua)亞鐵(tie)(tie)(tie)、三(san)氧(yang)化(hua)二鐵(tie)(tie)(tie)、含水(shui)三(san)氧(yang)化(hua)二鐵(tie)(tie)(tie)和(he)四氧(yang)化(hua)三(san)鐵(tie)(tie)(tie)等。在鋼(gang)桶涂(tu)裝(zhuang)前(qian)(qian)，如(ru)果(guo)不將其表面(mian)(mian)的(de)(de)氧(yang)化(hua)皮(pi)和(he)鐵(tie)(tie)(tie)銹除(chu)盡，就 會(hui)影響鋼(gang)桶表面(mian)(mian)漆膜(mo)的(de)(de)附(fu)著力、裝(zhuang)飾性和(he)使(shi)用(yong)壽命。因(yin)為(wei)鐵(tie)(tie)(tie)銹結構(gou)疏松，在鋼(gang)桶表面(mian)(mian)附(fu)著不牢，易(yi)隨涂(tu)層一起脫落。而(er)氧(yang)化(hua)皮(pi)在水(shui)汾作用(yong)下(xia)會(hui)生(sheng)成氫氧(yang)化(hua)三(san)鐵(tie)(tie)(tie)，體(ti)積增大使(shi)漆膜(mo)起泡(pao)、龜(gui)裂、 脫落。漆膜(mo)下(xia)的(de)(de)氧(yang)化(hua)物與鋼(gang)桶金屬鐵(tie)(tie)(tie)組成的(de)(de)腐蝕(shi)電池中是(shi)陰極，它促使(shi)鋼(gang)桶表面(mian)(mian)金屬繼續(xu)腐蝕(shi)，使(shi)涂(tu)層很(hen)快被破壞。

鋼桶涂裝的安全措施

1、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)操(cao)(cao)作(zuo)(zuo)人(ren)員(yuan)(yuan)應(ying)熟悉所使用(yong)(yong)的(de)涂(tu)料的(de)性(xing)能(neng)、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)規(gui)程(cheng)及(ji)安全制(zhi)度。在(zai)(zai)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)中應(ying)嚴(yan)格執行勞(lao)動保護(hu)(hu)制(zhi)度。 2、必須使用(yong)(yong)勞(lao)防用(yong)(yong)品。進行噴(pen)涂(tu)操(cao)(cao)作(zuo)(zuo)時(shi)(shi)，應(ying)穿緊身的(de)工(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)服(fu)，戴口(kou)(kou)罩、手套和防護(hu)(hu)眼鏡。避免涂(tu)料接觸皮膚和有(you)害(hai)氣體(ti)直接進入呼吸系統。 3、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)現場(chang)應(ying)有(you)良好的(de)通風條件。操(cao)(cao)作(zuo)(zuo)時(shi)(shi)z好站在(zai)(zai)上風頭(tou)，如在(zai)(zai)通風不良的(de)場(chang)所施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，必須安置(zhi)通風設備。 4、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)時(shi)(shi)出現頭(tou)暈惡心(xin)者(zhe)，應(ying)立即(ji)離開(kai)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)地點(dian)，到外(wai)面呼吸新鮮空氣和休(xiu)息，嚴(yan)重者(zhe)應(ying)立即(ji)送醫院檢查(cha)。 5、在(zai)(zai)涂(tu)裝施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)現場(chang)，開(kai)口(kou)(kou)烤漆(qi)鋼桶，不準使用(yong)(yong)明火，嚴(yan)禁(jin)吸煙，金華(hua)開(kai)口(kou)(kou)鋼桶，嚴(yan)禁(jin)穿有(you)鐵(tie)釘皮鞋的(de)人(ren)員(yuan)(yuan)進入工(gong)(gong)(gong)(gong)(gong)(gong)場(chang)，嚴(yan)禁(jin)使用(yong)(yong)高壓燈(deng)和設置(zhi)電氣開(kai)關等。 6、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)完畢后(hou)，應(ying)及(ji)時(shi)(shi)清理工(gong)(gong)(gong)(gong)(gong)(gong)具及(ji)殘余材(cai)料，并封閉(bi)鋼桶。溶(rong)劑鋼桶上要(yao)加(jia)蓋。擦拭油(you)漆(qi)和溶(rong)劑的(de)回絲、布(bu)頭(tou)應(ying)及(ji)時(shi)(shi)處理掉。 7、操(cao)(cao)作(zuo)(zuo)人(ren)員(yuan)(yuan)應(ying)少用(yong)(yong)含(han)苯的(de)溶(rong)劑洗手。工(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)時(shi)(shi)z好將外(wai)露(lu)的(de)皮膚擦上凡土林或(huo)戴上塑料手套，以防漆(qi)液(ye)和溶(rong)劑沾染。 8、操(cao)(cao)作(zuo)(zuo)人(ren)員(yuan)(yuan)不得在(zai)(zai)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)現場(chang)進食，飯前或(huo)下班后(hou)要(yao)用(yong)(yong)肥皂洗手、洗臉，并換下工(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)服(fu)。 9、操(cao)(cao)作(zuo)(zuo)人(ren)員(yuan)(yuan)應(ying)定期進行體(ti)格檢查(cha)，對有(you)癥狀者(zhe)要(yao)及(ji)早檢查(cha)和確(que)診，及(ji)時(shi)(shi)治1療。

鋼桶涂料耐腐性能

涂膜的(de)耐(nai)腐性(xing)能(neng)(neng)包(bao)括耐(nai)水、耐(nai)熱(re)、耐(nai)濕熱(re)、耐(nai)鹽(yan)霧、耐(nai)酸(suan)堿(jian)、耐(nai)、耐(nai)潤滑(hua)油(you)等項目(mu)。此性(xing)能(neng)(neng)的(de)測(ce)(ce)試，對于鋼(gang)(gang)桶(tong)(tong)行業來(lai)(lai)說(shuo)，可(ke)(ke)以進行針對性(xing)項目(mu)測(ce)(ce)試。特別(bie)是鋼(gang)(gang)桶(tong)(tong)內(nei)(nei)涂料，可(ke)(ke)以針對內(nei)(nei)涂鋼(gang)(gang)桶(tong)(tong)將來(lai)(lai)要灌(guan)裝的(de)物品進行測(ce)(ce)試。

方(fang)法是將涂(tu)(tu)料涂(tu)(tu)在一(yi)頭(tou)呈半球狀的(de)(de)長120mm，直徑10-12mm的(de)(de)碳鋼棒上(shang)(shang)，非球形的(de)(de)一(yi)頭(tou)打一(yi)小(xiao)孔，小(xiao)孔中(zhong)可(ke)穿一(yi)尼龍繩。可(ke)采(cai)用(yong)以上(shang)(shang)制(zhi)作(zuo)涂(tu)(tu)膜(mo)樣(yang)板的(de)(de)方(fang)法，也可(ke)采(cai)用(yong)浸涂(tu)(tu)法。要(yao)求涂(tu)(tu)兩層(ceng)以上(shang)(shang)，總厚度要(yao)大于80μm。

將實干后的涂膜(mo)(mo)樣棒吊浸(jin)于鋼桶將要(yao)灌(guan)裝(zhuang)的液體中，經(jing)過一定時(shi)間后，開口鋼桶價格(ge)，取出并用清水沖洗干凈(jing)，然后檢(jian)查涂膜(mo)(mo)情況。一般來說，200l開口鋼桶，浸(jin)液時(shi)間要(yao)大于3個(ge)月，涂膜(mo)(mo)完(wan)好無損，才能(neng)算合格(ge)，也可在55℃的恒溫條件下浸(jin)兩星期進(jin)行快速測(ce)試，作為參考(kao)。