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鍍鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)為(wei)基板(ban)(ban)(ban)(ban)的(de)(de)彩涂(tu)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban),除有鋅(xin)(xin)保護外,鋅(xin)(xin)層(ceng)上的(de)(de)有機涂(tu)層(ceng)起了覆(fu)蓋隔離作用(yong),可(ke)(ke)防(fang)止鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)生銹,使(shi)(shi)用(yong)壽命(ming)比(bi)鍍鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)更長(chang),據介紹涂(tu)層(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)的(de)(de)使(shi)(shi)用(yong)壽命(ming)比(bi)鍍鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)長(chang)50%。在(zai)連(lian)續機組上以(yi)冷(leng)軋(ya)帶鋼(gang)(gang)(gang),鍍鋅(xin)(xin)帶鋼(gang)(gang)(gang)(電鍍鋅(xin)(xin)和(he)熱鍍鋅(xin)(xin))為(wei)基板(ban)(ban)(ban)(ban),經(jing)過(guo)表面預處(chu)理(脫脂和(he)化(hua)學處(chu)理),用(yong)輥涂(tu)的(de)(de)方法(fa),涂(tu)上一(yi)層(ceng)或多層(ceng)液(ye)態(tai)涂(tu)料,經(jing)過(guo)烘烤和(he)冷(leng)卻所得的(de)(de)板(ban)(ban)(ban)(ban)材即為(wei)涂(tu)層(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。由(you)(you)于(yu)涂(tu)層(ceng)可(ke)(ke)以(yi)有各種不同的(de)(de)顏色,習慣上把涂(tu)層(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)叫做彩色涂(tu)層(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。又由(you)(you)于(yu)涂(tu)層(ceng)是(shi)在(zai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)成型加工之前進行的(de)(de),在(zai)國(guo)外這叫做預涂(tu)層(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。
鍍鋅價格鍍鋅方管是一種具以熱軋或冷軋鍍鋅帶鋼或鍍鋅卷板為坯料經冷彎曲加工成型后再經高頻焊接制成的方形截面形狀尺寸的空心方形的截面型鋼鋼管;鍍鋅卷或將事先做好的冷彎空心型鋼管再經熱浸鍍鋅加工而成的鍍鋅方矩管。內蒙古鍍鋅鍍(du)(du)(du)鋅(xin)量是表示鍍(du)(du)(du)鋅(xin)板鋅(xin)層(ceng)(ceng)厚度(du)的(de)(de)一(yi)(yi)個普遍采用的(de)(de)有效方(fang)法。鍍(du)(du)(du)鋅(xin)量的(de)(de)單位為g/m2。鍍(du)(du)(du)鋅(xin)層(ceng)(ceng)通過鈍化處(chu)理(li)(li)(li),可減少潮(chao)溫(wen)貯運條件下產(chan)(chan)生(sheng)(sheng)折銹蝕(shi)(白銹) 。但這種化學處(chu)理(li)(li)(li)的(de)(de)防腐蝕(shi)性能是有限的(de)(de),而且,妨礙(ai)大多數涂料的(de)(de)附著性。這種處(chu)理(li)(li)(li)一(yi)(yi)般(ban)不用在鋅(xin)鐵(tie)合金鍍(du)(du)(du)層(ceng)(ceng),除(chu)光整表面外,作為常規,生(sheng)(sheng)產(chan)(chan)廠對其他類型的(de)(de)鍍(du)(du)(du)鋅(xin)層(ceng)(ceng)均進行(xing)鈍化處(chu)理(li)(li)(li)。
鍍(du)鋅(xin)(xin)板選擇(ze)要(yao)(yao)注(zhu)(zhu)重(zhong)的(de)(de)幾個要(yao)(yao)點,工業(ye)企業(ye)的(de)(de)客戶選擇(ze)專(zhuan)用工業(ye)原料,要(yao)(yao)注(zhu)(zhu)重(zhong)從四個標準(zhun)。一是(shi)(shi)要(yao)(yao)注(zhu)(zhu)重(zhong)品(pin)牌(pai)來(lai)進(jin)行選擇(ze),因為鍍(du)鋅(xin)(xin)技(ji)術的(de)(de)要(yao)(yao)求嚴格,所以(yi)有的(de)(de)基(ji)礎(chu),當然產(chan)品(pin)質(zhi)(zhi)量與(yu)技(ji)術標準(zhun)都會更可靠(kao),都會有好(hao)的(de)(de)專(zhuan)業(ye)標準(zhun)。二(er)是(shi)(shi)要(yao)(yao)注(zhu)(zhu)重(zhong)產(chan)品(pin)本身的(de)(de)鍍(du)層(ceng)質(zhi)(zhi)量,鍍(du)層(ceng)一要(yao)(yao)靠(kao)技(ji)術,二(er)要(yao)(yao)靠(kao)純度,所以(yi)從產(chan)品(pin)表面來(lai)看質(zhi)(zhi)量,這是(shi)(shi)基(ji)本也是(shi)(shi)重(zhong)要(yao)(yao)的(de)(de)一個標準(zhun)。三是(shi)(shi)要(yao)(yao)看基(ji)礎(chu)材(cai)料。鍍(du)鋅(xin)(xin)板基(ji)礎(chu)金屬材(cai)料的(de)(de)質(zhi)(zhi)量,與(yu)成品(pin)鍍(du)鋅(xin)(xin)板的(de)(de)質(zhi)(zhi)量與(yu)耐用性密切相關,所以(yi)在(zai)進(jin)行產(chan)品(pin)選擇(ze)的(de)(de)時候(hou),需(xu)要(yao)(yao)注(zhu)(zhu)重(zhong)這個細(xi)節,而(er)材(cai)料的(de)(de)提供,就是(shi)(shi)對(dui)于(yu)工業(ye)生產(chan)來(lai)說,有基(ji)礎(chu)條(tiao)件。四是(shi)(shi)要(yao)(yao)注(zhu)(zhu)重(zhong)價(jia)格對(dui)比,不是(shi)(shi)好(hao)的(de)(de)就是(shi)(shi)貴的(de)(de),但是(shi)(shi)如果廉價(jia)的(de)(de)把產(chan)品(pin),那是(shi)(shi)不可信的(de)(de)。
樓(lou)(lou)承板(ban)(ban)(ban)(ban)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)首要(yao)起(qi)到防腐的(de)(de)效果,按標準組(zu)(zu)合樓(lou)(lou)板(ban)(ban)(ban)(ban)與非(fei)組(zu)(zu)合樓(lou)(lou)板(ban)(ban)(ban)(ban)壓型鋼板(ban)(ban)(ban)(ban)應選用熱(re)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin),不該(gai)(gai)選用電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)(ban)(ban)(ban),其(qi)雙(shuang)面(mian)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)總含(han)(han)量(liang)(liang)要(yao)滿足在使用期間不致銹(xiu)損的(de)(de)要(yao)求。當作為非(fei)組(zu)(zu)合樓(lou)(lou)承板(ban)(ban)(ban)(ban)時,鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)可(ke)選用較低值(zhi);當為組(zu)(zu)合樓(lou)(lou)承板(ban)(ban)(ban)(ban)時,鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)不該(gai)(gai)小于150g/m2。當為組(zu)(zu)合樓(lou)(lou)板(ban)(ban)(ban)(ban)且使用環境條件較為惡劣時,鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)應選用上(shang)限(xian)值(zhi)或(huo)更高值(zhi)。更高的(de)(de)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)要(yao)求,如雙(shuang)面(mian)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)為300g/m2、350g/m2或(huo)鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)(5%鋁)275g/m2、300g/m2等,較高的(de)(de)鍍(du)(du)(du)(du)層(ceng)(ceng)量(liang)(liang)使組(zu)(zu)合樓(lou)(lou)板(ban)(ban)(ban)(ban)有更長耐久性,同等量(liang)(liang)的(de)(de)鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)的(de)(de)防銹(xiu)蝕才能大約兩倍于一般熱(re)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)。鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)也不是越(yue)厚越(yue)好,當鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)較厚時,抗剪連接(jie)(jie)件栓釘的(de)(de)焊接(jie)(jie)質量(liang)(liang)就(jiu)很(hen)難保證(zheng),焊接(jie)(jie)時,宜選用局部除鋅(xin)(xin)(xin)(xin)處(chu)理措施。