目前卷軋中(zhong)厚板軋機的主要有以下三種種生產工藝:


 1. 單張鋼板往復軋制方式


   這(zhe)(zhe)種(zhong)方(fang)式主要用于(yu)(yu)軋(ya)制厚(hou)度大(da)(da)于(yu)(yu)20毫米(mi)的(de)厚(hou)鋼(gang)(gang)板(ban)(ban),使(shi)用較長(chang)的(de)板(ban)(ban)坯(pi),當軋(ya)制到目標鋼(gang)(gang)板(ban)(ban)厚(hou)度時,最(zui)終長(chang)度大(da)(da)于(yu)(yu)50米(mi)(一般不超過100米(mi)),軋(ya)件(jian)直接從(cong)出口卷取爐下面送至轉鼓飛剪(jian),將之剪(jian)切成倍(bei)尺(chi)母板(ban)(ban)長(chang)度;通過加速冷(leng)卻(que)后進(jin)入熱(re)矯直機及冷(leng)床;最(zui)后經精整線剪(jian)切出定尺(chi)成品鋼(gang)(gang)板(ban)(ban)。這(zhe)(zhe)種(zhong)方(fang)式適于(yu)(yu)常(chang)規的(de)中(zhong)厚(hou)板(ban)(ban)生產工藝。


 2. 卷(juan)軋鋼板方式


   這(zhe)種方(fang)式(shi)主(zhu)要(yao)用于軋(ya)(ya)(ya)制生(sheng)產(chan)(chan)(chan)厚(hou)(hou)(hou)度(du)(du)(du)(du)不超(chao)(chao)過20毫(hao)米的(de)(de)中厚(hou)(hou)(hou)鋼(gang)板(ban)(ban)。使(shi)用較(jiao)長(chang)板(ban)(ban)坯,先在軋(ya)(ya)(ya)機(ji)上(shang)經(jing)(jing)(jing)反復可(ke)(ke)逆軋(ya)(ya)(ya)制,當軋(ya)(ya)(ya)件(jian)(jian)厚(hou)(hou)(hou)度(du)(du)(du)(du)不超(chao)(chao)過25毫(hao)米時,長(chang)軋(ya)(ya)(ya)件(jian)(jian)進入軋(ya)(ya)(ya)機(ji)入口或出口卷取爐(lu)進行保(bao)溫,經(jing)(jing)(jing)往(wang)(wang)復軋(ya)(ya)(ya)制,最(zui)終軋(ya)(ya)(ya)至成(cheng)品厚(hou)(hou)(hou)度(du)(du)(du)(du);然后(hou)從出口卷取爐(lu)下面送(song)往(wang)(wang)飛剪剪切成(cheng)長(chang)度(du)(du)(du)(du)不超(chao)(chao)過50米的(de)(de)母板(ban)(ban),再經(jing)(jing)(jing)熱矯直機(ji)矯直,冷床冷卻,在精整線(xian)剪切成(cheng)定尺長(chang)度(du)(du)(du)(du)鋼(gang)板(ban)(ban)。這(zhe)種生(sheng)產(chan)(chan)(chan)工(gong)藝(yi)是卷軋(ya)(ya)(ya)中厚(hou)(hou)(hou)板(ban)(ban)軋(ya)(ya)(ya)機(ji)特有的(de)(de)生(sheng)產(chan)(chan)(chan)工(gong)藝(yi)。卷軋(ya)(ya)(ya)板(ban)(ban)生(sheng)產(chan)(chan)(chan)方(fang)式(shi)既不同(tong)于普通中板(ban)(ban)生(sheng)產(chan)(chan)(chan)方(fang)式(shi),也不同(tong)于熱連軋(ya)(ya)(ya)鋼(gang)卷生(sheng)產(chan)(chan)(chan)方(fang)式(shi)。由于其采用的(de)(de)是當軋(ya)(ya)(ya)件(jian)(jian)軋(ya)(ya)(ya)至厚(hou)(hou)(hou)度(du)(du)(du)(du)不超(chao)(chao)過25毫(hao)米,長(chang)軋(ya)(ya)(ya)件(jian)(jian)進入機(ji)前(qian)或機(ji)后(hou)卷取爐(lu)進行保(bao)溫方(fang)式(shi),因(yin)此既減少了軋(ya)(ya)(ya)件(jian)(jian)的(de)(de)溫降(jiang),也可(ke)(ke)使(shi)軋(ya)(ya)(ya)件(jian)(jian)在卷取爐(lu)與軋(ya)(ya)(ya)機(ji)之間形(xing)成(cheng)張(zhang)力(li),進而可(ke)(ke)減小(xiao)軋(ya)(ya)(ya)件(jian)(jian)縱向的(de)(de)變形(xing)抗力(li)。由于卷軋(ya)(ya)(ya)鋼(gang)板(ban)(ban)具有上(shang)述特點,因(yin)而可(ke)(ke)使(shi)軋(ya)(ya)(ya)件(jian)(jian)軋(ya)(ya)(ya)得(de)更薄,并(bing)能得(de)到較(jiao)好的(de)(de)板(ban)(ban)形(xing)。


 3. 鋼卷軋制方式


   這種方式(shi)用于(yu)軋制(zhi)(zhi)商品鋼(gang)卷(juan)。采(cai)用出(chu)、入口卷(juan)取(qu)(qu)爐,將(jiang)軋件(jian)往復軋至(zhi)厚(hou)2.5~20.0毫米的(de)帶鋼(gang),經層(ceng)流(liu)冷(leng)卻(que)后(hou)進入地下卷(juan)取(qu)(qu)機卷(juan)成鋼(gang)卷(juan)。綜合(he)了熱(re)連(lian)軋機和中厚(hou)板軋機的(de)技術(shu)(shu)特點,形成了現代卷(juan)軋中厚(hou)板軋機的(de)技術(shu)(shu)特色。采(cai)用的(de)主要技術(shu)(shu)有:直接熱(re)裝技術(shu)(shu),最(zui)高可達(da)到(dao)75%;爐卷(juan)軋制(zhi)(zhi)工藝技術(shu)(shu);控(kong)(kong)制(zhi)(zhi)軋制(zhi)(zhi)及(ji)(ji)熱(re)機軋制(zhi)(zhi)工藝技術(shu)(shu)(可滿足生產管(guan)線鋼(gang)、高強(qiang)度造船板、高強(qiang)度結(jie)構(gou)鋼(gang)板的(de)要求);高精度、快速(su)(su)動(dong)態自(zi)動(dong)厚(hou)度控(kong)(kong)制(zhi)(zhi)技術(shu)(shu)(AGC);板形控(kong)(kong)制(zhi)(zhi)(目前僅限(xian)于(yu)軋輥彎(wan)輥)技術(shu)(shu);控(kong)(kong)制(zhi)(zhi)冷(leng)卻(que)及(ji)(ji)層(ceng)流(liu)冷(leng)卻(que)+加速(su)(su)冷(leng)卻(que)技術(shu)(shu);全液壓地下卷(juan)取(qu)(qu)機及(ji)(ji)自(zi)動(dong)踏步控(kong)(kong)制(zhi)(zhi)技術(shu)(shu)等。



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