樂山鍍鋅鋼重慶鍍鋅卷主要有：脫落、劃傷、鈍化斑、鋅粒、厚邊、氣刀條痕、氣刀刮痕、露鋼、夾雜、機械損傷、鋼基性能不良、浪邊、瓢曲、尺寸不合、壓印、鋅層厚度不合、輥印等。鍍鋅鋼廠家鋅(xin)(xin)(xin)層(ceng)脫落(luo)的(de)主要(yao)原因有(you)(you)：表面氧化(hua)(hua)、有(you)(you)硅(gui)化(hua)(hua)合(he)物、冷扎(zha)乳化(hua)(hua)液太(tai)(tai)臟(zang)、NOF段氧化(hua)(hua)氣氛及保護氣體露點(dian)太(tai)(tai)高、空燃比不合(he)理(li)、氫氣流量(liang)偏(pian)(pian)(pian)低(di)(di)、爐(lu)子有(you)(you)氧滲入(ru)，帶鋼(gang)入(ru)鍋溫度(du)偏(pian)(pian)(pian)低(di)(di)，RWP段爐(lu)壓偏(pian)(pian)(pian)低(di)(di)及爐(lu)門吸風、NOF段爐(lu)溫偏(pian)(pian)(pian)低(di)(di)，油脂蒸發不盡、鋅(xin)(xin)(xin)鍋鋁含量(liang)偏(pian)(pian)(pian)低(di)(di)、機(ji)組速(su)度(du)太(tai)(tai)快、還(huan)原不充分(fen)、鋅(xin)(xin)(xin)液中(zhong)停留時(shi)間(jian)太(tai)(tai)短、鍍(du)層(ceng)偏(pian)(pian)(pian)厚。白(bai)銹和黑(hei)斑產(chan)(chan)生的(de)原因有(you)(you)：黑(hei)斑是白(bai)銹進一(yi)步氧化(hua)(hua)形(xing)成的(de)鍍(du)鋅(xin)(xin)(xin)板(ban)的(de)特點(dian)與用途。鍍(du)鋅(xin)(xin)(xin)卷板(ban)是以熱(re)軋(ya)鋼(gang)帶或冷軋(ya)鋼(gang)帶為基板(ban)，經過(guo)連續熱(re)浸鍍(du)鋅(xin)(xin)(xin)工(gong)(gong)藝而(er)生產(chan)(chan)出(chu)來的(de)， 產(chan)(chan)品具有(you)(you)耐腐蝕強、 表面質量(liang)好、有(you)(you)利于深加工(gong)(gong)、經濟實用等特點(dian)。

鍍(du)鋅(xin)(xin)(xin)(xin)(xin)方(fang)管是一種具以熱軋(ya)或(huo)冷軋(ya)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)帶鋼(gang)(gang)(gang)(gang)(gang)(gang)或(huo)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)卷板(ban)(ban)(ban)為(wei)坯(pi)料(liao)經冷彎曲加工(gong)成(cheng)(cheng)型(xing)后再(zai)(zai)經高(gao)頻焊接制(zhi)成(cheng)(cheng)的(de)(de)方(fang)形(xing)(xing)截面形(xing)(xing)狀尺寸的(de)(de)空心方(fang)形(xing)(xing)的(de)(de)截面型(xing)鋼(gang)(gang)(gang)(gang)(gang)(gang)鋼(gang)(gang)(gang)(gang)(gang)(gang)管;或(huo)將(jiang)事先做好的(de)(de)冷彎空心型(xing)鋼(gang)(gang)(gang)(gang)(gang)(gang)管再(zai)(zai)經熱浸鍍(du)鋅(xin)(xin)(xin)(xin)(xin)加工(gong)而成(cheng)(cheng)的(de)(de)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)方(fang)矩(ju)管。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)卷廠產量隨著(zhu)國民(min)生活水(shui)平不斷提高(gao)和(he)城市化(hua)建(jian)設的(de)(de)不斷推進，從(cong)(cong)現在的(de)(de)1.6億噸每(mei)年，增(zeng)加到(dao)3億噸甚至(zhi)更多(duo)也不是什么(me)很遙遠的(de)(de)夢想。作(zuo)為(wei)煉(lian)鋼(gang)(gang)(gang)(gang)(gang)(gang)原(yuan)料(liao)的(de)(de)鐵礦(kuang)石與廢鋼(gang)(gang)(gang)(gang)(gang)(gang)，前者(zhe)是不可的(de)(de)資(zi)源，后者(zhe)是可以循環利用的(de)(de)資(zi)源。無論從(cong)(cong)環保角(jiao)度還(huan)是從(cong)(cong)鋼(gang)(gang)(gang)(gang)(gang)(gang)企的(de)(de)運作(zuo)成(cheng)(cheng)本(ben)上看，廢鋼(gang)(gang)(gang)(gang)(gang)(gang)都(dou)有(you)著(zhu)礦(kuang)石所(suo)無法比擬的(de)(de)優(you)勢。發(fa)展(zhan)高(gao)強度熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。隨著(zhu)汽車工(gong)業逐(zhu)漸向、節能(neng)方(fang)向發(fa)展(zhan)，對汽車用鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)性能(neng)要求(qiu)也進一步提高(gao)。為(wei)了汽車板(ban)(ban)(ban)的(de)(de)耐腐蝕性，將(jiang)擴大(da)熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)的(de)(de)使用率。

熱鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)和電(dian)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)在鍍(du)(du)(du)鋅(xin)(xin)(xin)量(liang)(liang)上有(you)很(hen)大(da)的(de)(de)差別，就(jiu)像山東彩涂卷）。熱鍍(du)(du)(du)鋅(xin)(xin)(xin)的(de)(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)量(liang)(liang)不(bu)可(ke)能(neng)太小(xiao)，一般較(jiao)小(xiao)為(wei)雙面(mian)50～60g／m2，較(jiao)大(da)可(ke)達(da)600g／m2。電(dian)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)層(ceng)可(ke)以很(hen)薄，較(jiao)小(xiao)達(da)15g／m2，但要求鍍(du)(du)(du)層(ceng)較(jiao)厚的(de)(de)話則生(sheng)產線速度很(hen)慢(man)，不(bu)適(shi)應現(xian)代化(hua)機(ji)組(zu)的(de)(de)工藝(yi)特點，一般較(jiao)大(da)為(wei)lO0g／m2左右(you)。正因為(wei)如此，電(dian)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)(de)生(sheng)產受到(dao)很(hen)大(da)的(de)(de)限(xian)制。工一般電(dian)鍍(du)(du)(du)鋅(xin)(xin)(xin)比(bi)較(jiao)多，適(shi)用(yong)于小(xiao)部(bu)件；熱鍍(du)(du)(du)鋅(xin)(xin)(xin)一般用(yong)于電(dian)力設(she)備和構(gou)件，適(shi)用(yong)于大(da)的(de)(de)部(bu)件和設(she)備。當(dang)然他們的(de)(de)價格也相對(dui)便(bian)宜一些。建(jian)設(she)部(bu)已正式下文，淘汰(tai)技術落后的(de)(de)冷鍍(du)(du)(du)鋅(xin)(xin)(xin)管，不(bu)準用(yong)冷鍍(du)(du)(du)鋅(xin)(xin)(xin)管作(zuo)水、煤氣管。

樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)適(shi)應主體鋼(gang)結構快速施工的(de)(de)(de)(de)要(yao)求，能(neng)夠(gou)在(zai)短時間(jian)內(nei)提供堅定的(de)(de)(de)(de)作業(ye)平臺，并可(ke)采用(yong)多個樓(lou)(lou)(lou)層鋪設(she)壓型鋼(gang)板(ban)(ban)(ban)，分(fen)層澆筑混凝(ning)(ning)土(tu)板(ban)(ban)(ban)的(de)(de)(de)(de)流水施工。在(zai)使(shi)用(yong)階段樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)作為混凝(ning)(ning)土(tu)樓(lou)(lou)(lou)板(ban)(ban)(ban)的(de)(de)(de)(de)受拉鋼(gang)筋，也提高了(le)(le)樓(lou)(lou)(lou)板(ban)(ban)(ban)的(de)(de)(de)(de)剛度，節省了(le)(le)鋼(gang)筋和混凝(ning)(ning)土(tu)的(de)(de)(de)(de)用(yong)量。樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)上(shang)面(mian)可(ke)以(yi)(yi)鋪設(she)保(bao)溫，隔音，隔熱(re)，隔振等材料。樓(lou)(lou)(lou)面(mian)性(xing)能(neng)充分(fen)發揮(hui)鋼(gang)的(de)(de)(de)(de)良(liang)好(hao)的(de)(de)(de)(de)抗拉強度和延性(xing)及混凝(ning)(ning)土(tu)優良(liang)的(de)(de)(de)(de)抗壓強度和較大的(de)(de)(de)(de)剛度。壓型板(ban)(ban)(ban)表面(mian)壓紋使(shi)樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)與混凝(ning)(ning)土(tu)之間(jian)產(chan)生(sheng)大的(de)(de)(de)(de)結合力，使(shi)二者(zhe)形(xing)成整體，配以(yi)(yi)加勁肋，使(shi)樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)系統具有高強承(cheng)(cheng)載力。在(zai)懸(xuan)臂條件下，樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)僅作為性(xing)模板(ban)(ban)(ban)。懸(xuan)挑(tiao)(tiao)的(de)(de)(de)(de)長度可(ke)根據樓(lou)(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)的(de)(de)(de)(de)截面(mian)特(te)性(xing)來定。為了(le)(le)防止懸(xuan)挑(tiao)(tiao)板(ban)(ban)(ban)的(de)(de)(de)(de)開裂，需在(zai)支座處依結構工程師的(de)(de)(de)(de)設(she)計配上(shang)負(fu)筋。

鋼(gang)筋(jin)(jin)桁架樓(lou)承(cheng)板(ban)完成了(le)(le)機械化出產(chan)(chan)，有(you)利于鋼(gang)筋(jin)(jin)擺放距離均(jun)勻、混(hun)凝土保護層厚度共同，提高了(le)(le)樓(lou)板(ban)的施工(gong)(gong)(gong)質量(liang)。裝配式鋼(gang)筋(jin)(jin)桁架樓(lou)承(cheng)板(ban)可明(ming)顯削減現場(chang)鋼(gang)筋(jin)(jin)綁扎工(gong)(gong)(gong)程(cheng)(cheng)量(liang)，加(jia)速施工(gong)(gong)(gong)進(jin)度，添加(jia)施工(gong)(gong)(gong)確(que)保，完成文明(ming)施工(gong)(gong)(gong)。裝配式模板(ban)和連接件拆(chai)裝便利，可屢次重復使用(yong)，節(jie)(jie)省鋼(gang)材，契合國家節(jie)(jie)能(neng)環保的要求。鋼(gang)構自(zi)主(zhu)研(yan)制的產(chan)(chan)品(pin)配套自(zi)動化出產(chan)(chan)設(she)備，大(da)大(da)提高了(le)(le)勞(lao)動出產(chan)(chan)率(lv)，有(you)用(yong)降低了(le)(le)產(chan)(chan)品(pin)成本，并編制了(le)(le)產(chan)(chan)品(pin)出產(chan)(chan)企業規范、規劃(hua)手(shou)冊和節(jie)(jie)點構造圖集以(yi)及施工(gong)(gong)(gong)手(shou)冊。該產(chan)(chan)品(pin)經過浙(zhe)江大(da)學土木工(gong)(gong)(gong)程(cheng)(cheng)測試中心檢測，并經過多項工(gong)(gong)(gong)程(cheng)(cheng)使用(yong)，各項功能(neng)可以(yi)滿意(yi)現澆鋼(gang)筋(jin)(jin)混(hun)凝土樓(lou)板(ban)承(cheng)載力和變(bian)形的要求。