冷軋
用(yong)熱軋(ya)(ya)(ya)鋼卷(juan)為原料,經酸洗(xi)去除氧化皮(pi)后進行(xing)冷連(lian)(lian)軋(ya)(ya)(ya),其成品為軋(ya)(ya)(ya)硬(ying)卷(juan),由于連(lian)(lian)續(xu)冷變形(xing)引(yin)起的(de)(de)(de)冷作(zuo)硬(ying)化使軋(ya)(ya)(ya)硬(ying)卷(juan)的(de)(de)(de)強度、硬(ying)度上升、韌塑指標(biao)下降,因(yin)此沖壓性能將惡(e)化,只能用(yong)于簡單變形(xing)的(de)(de)(de)零件(jian)。軋(ya)(ya)(ya)硬(ying)卷(juan)可作(zuo)為熱鍍鋅廠的(de)(de)(de)原料,因(yin)為熱鍍鋅機組(zu)均設置有退 火線。軋(ya)(ya)(ya)硬(ying)卷(juan)重(zhong)一般在6~13.5噸(dun),鋼卷(juan)在常溫下,對(dui)熱軋(ya)(ya)(ya)酸洗(xi)卷(juan)進行(xing)連(lian)(lian)續(xu)軋(ya)(ya)(ya)制。內(nei)徑為610mm。
分 類:
冷(leng)(leng)軋(ya)(ya)(ya)在業界又可(ke)以稱(cheng)(cheng)為冷(leng)(leng)軋(ya)(ya)(ya)卷(juan)(juan)(juan)(juan)板(ban)(ban)(ban)、冷(leng)(leng)軋(ya)(ya)(ya)板(ban)(ban)(ban)卷(juan)(juan)(juan)(juan)。這(zhe)些名稱(cheng)(cheng)的(de)由來是因為冷(leng)(leng)軋(ya)(ya)(ya)產品的(de)分類,冷(leng)(leng)軋(ya)(ya)(ya)具體分為冷(leng)(leng)板(ban)(ban)(ban)及冷(leng)(leng)卷(juan)(juan)(juan)(juan)兩個主(zhu)類。而冷(leng)(leng)板(ban)(ban)(ban)又可(ke)以稱(cheng)(cheng)為冷(leng)(leng)軋(ya)(ya)(ya)板(ban)(ban)(ban)、冷(leng)(leng)卷(juan)(juan)(juan)(juan)板(ban)(ban)(ban);冷(leng)(leng)卷(juan)(juan)(juan)(juan)則可(ke)以稱(cheng)(cheng)為冷(leng)(leng)軋(ya)(ya)(ya)卷(juan)(juan)(juan)(juan)、冷(leng)(leng)板(ban)(ban)(ban)卷(juan)(juan)(juan)(juan)。此(ci)外(wai),冷(leng)(leng)軋(ya)(ya)(ya)還(huan)包括一些比較少(shao)的(de)品種,如冷(leng)(leng)軋(ya)(ya)(ya)盒板(ban)(ban)(ban)、冷(leng)(leng)軋(ya)(ya)(ya)硬板(ban)(ban)(ban)、冷(leng)(leng)軋(ya)(ya)(ya)薄板(ban)(ban)(ban)等,這(zhe)兩類主(zhu)要是因為形狀與材質的(de)不同而另(ling)外(wai)命名。
產品特點
因為沒(mei)有經過(guo)退火處(chu)理,其(qi)硬度很高(HRB大(da)于(yu)90),機械加工性能極差,只能進行簡單的有方(fang)向性的小(xiao)于(yu)90度的折彎(wan)加工(垂直于(yu)卷取方(fang)向)。
冷軋(ya)(ya)鋼簡(jian)單來說,冷軋(ya)(ya),是(shi)(shi)在熱軋(ya)(ya)板卷的基礎上加工(gong)軋(ya)(ya)制(zhi)出來的,一般來講是(shi)(shi)熱軋(ya)(ya)→酸洗→冷軋(ya)(ya)這樣(yang)的加工(gong)過程。
冷(leng)(leng)軋(ya)(ya)(ya)是(shi)(shi)在常溫狀態下由熱軋(ya)(ya)(ya)板(ban)加工(gong)而成,雖然在加工(gong)過程(cheng)因為軋(ya)(ya)(ya)制(zhi)也會使鋼板(ban)升溫,盡管如此還是(shi)(shi)叫冷(leng)(leng)軋(ya)(ya)(ya)。由于熱軋(ya)(ya)(ya)經過連(lian)續(xu)冷(leng)(leng)變型而成的冷(leng)(leng)軋(ya)(ya)(ya),在機械性能比較差,硬(ying)度太(tai)高。必(bi)須經過退火(huo)才能恢復其機械性能,沒有退火(huo)的叫軋(ya)(ya)(ya)硬(ying)卷。軋(ya)(ya)(ya)硬(ying)卷一般是(shi)(shi)用(yong)來做無需(xu)折(zhe)彎,拉伸的產品,1.0以下厚(hou)度軋(ya)(ya)(ya)硬(ying)的運氣好的兩(liang)邊或者四(si)邊折(zhe)彎。
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