VD或RH保真空時間16分鐘。純脫氣時間16分鐘。喂鈣線1.2m/t軟吹時間18分鐘。[0051]采用板還連鑄,化肥專用管 LF精煉造白渣處理。連鑄過程中動態二冷配水采用AmedC配水,靜態二冷配水采用弱冷，使用中碳化肥專用管保護洛，中包使用低碳堿性覆蓋劑。板還拉速1.0m/min,中間包過熱度20[0052]化肥專用管再加熱，加熱時間8min/cm加熱后出爐溫度1158°C[0053]化肥專用管軋制，化肥管加熱出爐后進行高壓(ya)水除(chu)磷，采(cai)用(yong)(yong)粗軋(ya)(ya)和精軋(ya)(ya)兩階段軋(ya)(ya)制(zhi)，精軋(ya)(ya)終(zhong)軋(ya)(ya)溫(wen)度900°C軋(ya)(ya)制(zhi)后弛豫停頓時間控制(zhi)在(zai)(zai)28弛豫后進行快速(su)冷卻(que)(que)，冷卻(que)(que)速(su)度17°C/s[0054]3對本實(shi)施制(zhi)備的生產壓(ya)力容器用(yong)(yong)化(hua)肥(fei)專用(yong)(yong)管的性能檢(jian)測(ce)屈服強度403MPa抗拉強度692Pa屈強比(bi)0.58350°C高溫(wen)性能Rpa2284MPa.一(yi)種(zhong)壓(ya)力容器用(yong)(yong)化(hua)肥(fei)專用(yong)(yong)管，其特征在(zai)(zai)于，所述化(hua)肥(fei)專用(yong)(yong)管包括重量百分比(bi)計的下述組分:碳 0.21?0.24%,硅 0.75?0.95%,錳 1.25?1.35%,磷(0.020%硫(0.010%,鉻0.40?0.55%余量為鐵(tie)和不可避(bi)免的雜質。

    壓力容器用化肥專用管的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)轉(zhuan)爐冶(ye)煉(lian)，LF+VD或(huo)RH爐外精(jing)煉(lian)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)連(lian)鑄(zhu)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)再加(jia)熱(re)(re)(re)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)軋(ya)(ya)(ya)(ya)制(zhi)(zhi)等工(gong)藝生產。3.壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)頂底復吹(chui)轉(zhuan)爐冶(ye)煉(lian)，堿度3.03.5,終點(dian)目標:C為0.06%?0.10%,P彡(shan)0.010%,S彡(shan)0.008%;出鋼(gang)(gang)(gang)時(shi)加(jia)擋(dang)渣(zha)(zha)棒、擋(dang)渣(zha)(zha)塞(sai)擋(dang)渣(zha)(zha)；出鋼(gang)(gang)(gang)時(shi)間>4分(fen)鐘(zhong)(zhong)，出鋼(gang)(gang)(gang)過程中(zhong)保證(zheng)鋼(gang)(gang)(gang)包(bao)全程吹(chui)氬；脫氧合(he)金(jin)化(hua)(hua)(hua)(hua)(hua):合(he)金(jin)在(zai)出鋼(gang)(gang)(gang)4/5前加(jia)完，出鋼(gang)(gang)(gang)過程中(zhong)加(jia)小顆(ke)粒石(shi)灰、螢石(shi)；出鋼(gang)(gang)(gang)完畢，CA S站吹(chui)氬>10分(fen)鐘(zhong)(zhong)，喂鋁線1.6m/t4.壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)LF+VD或(huo)RH爐外精(jing)煉(lian)；LF精(jing)煉(lian)造(zao)(zao)白渣(zha)(zha)處理，VD或(huo)RH保真空時(shi)間15?20分(fen)鐘(zhong)(zhong)，純脫氣時(shi)間15?20分(fen)鐘(zhong)(zhong)，喂鈣(gai)線1.2m/t軟吹(chui)時(shi)間彡(shan)15分(fen)鐘(zhong)(zhong)。5.壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)連(lian)鑄(zhu)，連(lian)鑄(zhu)過程中(zhong)動態二(er)冷(leng)(leng)配(pei)水(shui)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)AmedC配(pei)水(shui)，靜(jing)態二(er)冷(leng)(leng)配(pei)水(shui)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)弱(ruo)冷(leng)(leng)，使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)中(zhong)碳(tan)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)保護洛，中(zhong)包(bao)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)低(di)(di)碳(tan)堿性覆(fu)蓋劑，化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)拉(la)速0.9?1.2m/min中(zhong)間包(bao)過熱(re)(re)(re)度15?25°C6.壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)再加(jia)熱(re)(re)(re)，加(jia)熱(re)(re)(re)時(shi)間8min/cm加(jia)熱(re)(re)(re)后(hou)出爐溫(wen)(wen)度1130?1180°C7.壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)，其特征(zheng)在(zai)于:化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)軋(ya)(ya)(ya)(ya)制(zhi)(zhi)，化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)加(jia)熱(re)(re)(re)出爐后(hou)進行高壓(ya)水(shui)除(chu)磷(lin)，采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)粗軋(ya)(ya)(ya)(ya)和精(jing)軋(ya)(ya)(ya)(ya)兩階段(duan)軋(ya)(ya)(ya)(ya)制(zhi)(zhi)，精(jing)軋(ya)(ya)(ya)(ya)終軋(ya)(ya)(ya)(ya)溫(wen)(wen)度870°C?900°C軋(ya)(ya)(ya)(ya)制(zhi)(zhi)后(hou)弛(chi)豫停頓(dun)時(shi)間20?30弛(chi)豫后(hou)進行快速冷(leng)(leng)卻，冷(leng)(leng)卻速度10?25°C/s8.根(gen)據(ju)權利要(yao)求1所述(shu)(shu)的(de)(de)(de)(de)(de)壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)，其特征(zheng)在(zai)于，所述(shu)(shu)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)厚度^50mm專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)利摘要(yao)】本發(fa)明(ming)涉及一種(zhong)壓(ya)力容(rong)(rong)器(qi)(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)及其制(zhi)(zhi)造(zao)(zao)方(fang)(fang)法(fa)。本發(fa)明(ming)化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)包(bao)括(kuo)重量(liang)百(bai)分(fen)比(bi)計的(de)(de)(de)(de)(de)下述(shu)(shu)組分(fen)：碳(tan)0.210.24%硅0.750.95%錳1.251.35%磷(lin)≤0.020%硫≤0.010%鉻0.400.55%余量(liang)為鐵和不可避免的(de)(de)(de)(de)(de)雜(za)質(zhi)。本發(fa)明(ming)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)頂底復吹(chui)轉(zhuan)爐冶(ye)煉(lian)，LF＋VD或(huo)RH爐外精(jing)煉(lian)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)連(lian)鑄(zhu)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)再加(jia)熱(re)(re)(re)、化(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)軋(ya)(ya)(ya)(ya)制(zhi)(zhi)等工(gong)藝生產，屈服強(qiang)(qiang)度≥325MPa抗拉(la)強(qiang)(qiang)度≥585MPa屈強(qiang)(qiang)比(bi)≤0.75350℃高溫(wen)(wen)性能(neng)(neng)(neng)Rp0.2≥220MPa本發(fa)明(ming)具有(you)較高的(de)(de)(de)(de)(de)強(qiang)(qiang)度、較低(di)(di)的(de)(de)(de)(de)(de)屈強(qiang)(qiang)比(bi)、良好的(de)(de)(de)(de)(de)高溫(wen)(wen)性能(neng)(neng)(neng)和焊(han)接性能(neng)(neng)(neng)等，保證(zheng)了該鋼(gang)(gang)(gang)板(ban)制(zhi)(zhi)造(zao)(zao)的(de)(de)(de)(de)(de)壓(ya)力容(rong)(rong)器(qi)(qi)(qi)在(zai)高溫(wen)(wen)環境(jing)中(zhong)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)安(an)全性。

本(ben)文鏈接(jie)地址：//wxtxsz.cn/article/show/2048.html