冷軋
用熱(re)軋鋼(gang)卷(juan)為原(yuan)料(liao),經酸(suan)洗去除氧化皮后進(jin)行冷連軋,其成品為軋硬(ying)(ying)(ying)卷(juan),由于連續(xu)冷變形引起(qi)的(de)(de)冷作(zuo)硬(ying)(ying)(ying)化使軋硬(ying)(ying)(ying)卷(juan)的(de)(de)強度(du)、硬(ying)(ying)(ying)度(du)上升、韌塑指(zhi)標(biao)下(xia)(xia)降,因(yin)此沖壓性能(neng)將惡(e)化,只(zhi)能(neng)用于簡(jian)單變形的(de)(de)零件。軋硬(ying)(ying)(ying)卷(juan)可作(zuo)為熱(re)鍍鋅(xin)廠的(de)(de)原(yuan)料(liao),因(yin)為熱(re)鍍鋅(xin)機組均設置有退(tui) 火線。軋硬(ying)(ying)(ying)卷(juan)重一般在6~13.5噸,鋼(gang)卷(juan)在常溫下(xia)(xia),對熱(re)軋酸(suan)洗卷(juan)進(jin)行連續(xu)軋制。內徑為610mm。
分 類:
冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)在業(ye)界又可以稱為(wei)(wei)冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)卷(juan)(juan)板(ban)(ban)、冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)板(ban)(ban)卷(juan)(juan)。這些(xie)名稱的由來是因為(wei)(wei)冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)產(chan)品的分類,冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)具體分為(wei)(wei)冷(leng)(leng)(leng)(leng)板(ban)(ban)及冷(leng)(leng)(leng)(leng)卷(juan)(juan)兩個主類。而冷(leng)(leng)(leng)(leng)板(ban)(ban)又可以稱為(wei)(wei)冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)板(ban)(ban)、冷(leng)(leng)(leng)(leng)卷(juan)(juan)板(ban)(ban);冷(leng)(leng)(leng)(leng)卷(juan)(juan)則可以稱為(wei)(wei)冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)卷(juan)(juan)、冷(leng)(leng)(leng)(leng)板(ban)(ban)卷(juan)(juan)。此外(wai),冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)還包括一些(xie)比較(jiao)少(shao)的品種,如冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)盒板(ban)(ban)、冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)硬板(ban)(ban)、冷(leng)(leng)(leng)(leng)軋(ya)(ya)(ya)(ya)薄板(ban)(ban)等,這兩類主要是因為(wei)(wei)形狀與材(cai)質的不同而另外(wai)命(ming)名。
產品特點
因為沒有經(jing)過退火處理,其硬(ying)度(du)很高(HRB大(da)于90),機械加(jia)工(gong)性能極差,只能進行(xing)簡單的有方向性的小(xiao)于90度(du)的折彎加(jia)工(gong)(垂(chui)直(zhi)于卷取方向)。
冷軋(ya)鋼簡(jian)單來(lai)說(shuo),冷軋(ya),是在熱軋(ya)板卷的基礎上加(jia)工(gong)軋(ya)制出來(lai)的,一般來(lai)講是熱軋(ya)→酸洗(xi)→冷軋(ya)這樣(yang)的加(jia)工(gong)過(guo)程。
冷(leng)軋(ya)(ya)是(shi)(shi)在常溫狀態下由(you)(you)熱軋(ya)(ya)板加工(gong)(gong)而成,雖然(ran)在加工(gong)(gong)過程因為軋(ya)(ya)制也會使鋼板升(sheng)溫,盡管如(ru)此還是(shi)(shi)叫(jiao)冷(leng)軋(ya)(ya)。由(you)(you)于熱軋(ya)(ya)經(jing)過連續冷(leng)變型而成的冷(leng)軋(ya)(ya),在機械性(xing)能比較差,硬度太高。必須(xu)經(jing)過退(tui)火才能恢(hui)復(fu)其機械性(xing)能,沒有退(tui)火的叫(jiao)軋(ya)(ya)硬卷(juan)(juan)。軋(ya)(ya)硬卷(juan)(juan)一般是(shi)(shi)用(yong)來做無(wu)需折彎,拉伸(shen)的產品,1.0以下厚度軋(ya)(ya)硬的運氣好的兩邊或者四邊折彎。
應用范圍
主要用(yong)于(yu)汽車、冰箱、洗衣機等家電以及產(chan)業設備、各種建筑材料
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