一、彩色涂層鋼板是什么材質
涂(tu)(tu)層(ceng)鋼(gang)板(ban)(ban)(ban)是指在具有良(liang)好深沖性能的(de)低(di)碳鋼(gang)板(ban)(ban)(ban)表面涂(tu)(tu)覆錫(xi)、鋅(xin)、鋁(lv)(lv)、鉻、鉛錫(xi)合金、有機涂(tu)(tu)料和塑料等(deng)的(de)制品,彩色(se)涂(tu)(tu)層(ceng)鋼(gang)板(ban)(ban)(ban)屬于涂(tu)(tu)層(ceng)鋼(gang)板(ban)(ban)(ban)的(de)一種,是在鍍(du)鋅(xin)鋼(gang)板(ban)(ban)(ban)、鍍(du)鋁(lv)(lv)鋼(gang)板(ban)(ban)(ban)、鍍(du)錫(xi)鋼(gang)板(ban)(ban)(ban)或(huo)冷軋鋼(gang)板(ban)(ban)(ban)表面涂(tu)(tu)覆彩色(se)有機涂(tu)(tu)料或(huo)薄膜(mo)的(de)鋼(gang)板(ban)(ban)(ban)。
彩(cai)色涂層(ceng)(ceng)(ceng)(ceng)鋼(gang)板(ban)(ban)以(yi)鍍鋅鋼(gang)板(ban)(ban)或冷(leng)軋鋼(gang)板(ban)(ban)為基(ji)體,經(jing)表面(mian)處理后涂以(yi)各種(zhong)保護(hu)、裝(zhuang)飾涂層(ceng)(ceng)(ceng)(ceng),常用(yong)的涂層(ceng)(ceng)(ceng)(ceng)分為無機涂層(ceng)(ceng)(ceng)(ceng)、有機涂層(ceng)(ceng)(ceng)(ceng)和復合涂層(ceng)(ceng)(ceng)(ceng)三大類。彩(cai)涂鋼(gang)板(ban)(ban)由內(nei)至外的結構(gou)層(ceng)(ceng)(ceng)(ceng)為冷(leng)軋板(ban)(ban)、鍍鋅層(ceng)(ceng)(ceng)(ceng)、化學轉(zhuan)化層(ceng)(ceng)(ceng)(ceng)、初涂層(ceng)(ceng)(ceng)(ceng)(底(di)漆)、精涂層(ceng)(ceng)(ceng)(ceng)(正、背面(mian)漆)。
二、彩涂鋼板的種類有哪些
彩色涂(tu)層鋼(gang)板(ban)簡稱(cheng)彩涂(tu)鋼(gang)板(ban),這種板(ban)材表面(mian)色彩新(xin)穎、附著力(li)強、抗銹蝕性和裝飾性好(hao),并且加工性能好(hao),因此(ci)廣泛應用于建筑(zhu)外(wai)墻(qiang)護(hu)墻(qiang)板(ban)、屋面(mian)板(ban)、瓦(wa)楞板(ban)、防水防氣滲透(tou)板(ban)、耐(nai)腐蝕設備和構件以(yi)及家具、汽車外(wai)殼、擋水板(ban)等(deng)。根(gen)據(ju)結構的不同,彩涂(tu)鋼(gang)板(ban)可分為(wei)以(yi)下幾(ji)種類型:
1、涂裝鋼板
用鍍鋅鋼板作為(wei)(wei)基(ji)底,在其正(zheng)(zheng)面(mian)(mian)背面(mian)(mian)都進(jin)行涂(tu)裝,以(yi)保證其耐腐蝕(shi)性能(neng)。正(zheng)(zheng)面(mian)(mian)第一層(ceng)為(wei)(wei)底漆,通常(chang)為(wei)(wei)環氧底漆,因(yin)為(wei)(wei)它(ta)與金屬的附著力強,背面(mian)(mian)也涂(tu)有環氧樹脂(zhi)(zhi)或(huo)丙(bing)烯(xi)酸樹脂(zhi)(zhi);第二層(ceng)(面(mian)(mian)層(ceng))過去(qu)用醇酸樹脂(zhi)(zhi),一般用聚酯類涂(tu)料(liao)或(huo)丙(bing)烯(xi)酸樹脂(zhi)(zhi)涂(tu)料(liao)。
2、PVC鋼板
PVC層是熱(re)塑性(xing)(xing)的,表面(mian)可(ke)以熱(re)加(jia)工,如壓(ya)花可(ke)使表面(mian)質感豐(feng)富,而且它還具有柔性(xing)(xing),可(ke)以進行(xing)彎曲等(deng)二(er)次加(jia)工,其耐腐(fu)蝕性(xing)(xing)能也比較(jiao)好。PVC鋼(gang)(gang)板有兩種類型(xing),一種是用涂(tu)布糊狀PVC的方(fang)法生產的,稱為涂(tu)布PVC鋼(gang)(gang)板;另一種是將已成型(xing)和印花或壓(ya)花PVC膜貼在鋼(gang)(gang)板上,稱為貼膜PVC鋼(gang)(gang)板。
3、隔熱涂裝鋼板
隔熱涂裝鋼板是在彩色涂層鋼板的背面貼上15~17mm厚的聚苯乙烯泡沫塑料或硬質聚氨酯泡沫塑料,用來提高涂層鋼板的性(xing)能,主要用于需要隔熱(re)隔聲的特殊(shu)領域。
4、高耐久性涂層鋼板
利用氟塑料和(he)丙(bing)烯(xi)酸樹脂耐(nai)(nai)老(lao)化性(xing)(xing)能(neng)好的特點(dian),將(jiang)高(gao)耐(nai)(nai)久性(xing)(xing)涂層(ceng)鋼(gang)板(ban)用在(zai)鋼(gang)板(ban)表面涂層(ceng)上,能(neng)使彩涂鋼(gang)板(ban)耐(nai)(nai)久性(xing)(xing)、耐(nai)(nai)蝕性(xing)(xing)能(neng)提(ti)高(gao)。