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(jia)熱出爐后(hou)進行高壓(ya)(ya)水除(chu)磷，采用(yong)(yong)粗軋(ya)(ya)和(he)精(jing)軋(ya)(ya)兩階段(duan)軋(ya)(ya)制(zhi)，精(jing)軋(ya)(ya)終(zhong)軋(ya)(ya)溫度900°C軋(ya)(ya)制(zhi)后(hou)弛(chi)豫(yu)停頓時間控制(zhi)在28弛(chi)豫(yu)后(hou)進行快速冷(leng)卻(que)，冷(leng)卻(que)速度17°C/s[0054]3對本實施(shi)制(zhi)備的生(sheng)產壓(ya)(ya)力(li)容器(qi)用(yong)(yong)化(hua)肥專用(yong)(yong)管(guan)(guan)的性能(neng)(neng)檢測屈(qu)服(fu)強(qiang)(qiang)度403MPa抗拉(la)強(qiang)(qiang)度692Pa屈(qu)強(qiang)(qiang)比0.58350°C高溫性能(neng)(neng)Rpa2284MPa.一種壓(ya)(ya)力(li)容器(qi)用(yong)(yong)化(hua)肥專用(yong)(yong)管(guan)(guan)，其特征在于，所(suo)述化(hua)肥專用(yong)(yong)管(guan)(guan)包括重量百分比計的下(xia)述組分:碳 0.21?0.24%,硅 0.75?0.95%,錳 1.25?1.35%,磷(0.020%硫(liu)(0.010%,鉻0.40?0.55%余量為鐵和(he)不可避(bi)免的雜質(zhi)。

    壓力容器用化肥專用管的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)轉爐(lu)(lu)冶煉(lian)(lian)(lian)(lian)，LF+VD或(huo)RH爐(lu)(lu)外精煉(lian)(lian)(lian)(lian)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)連鑄(zhu)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)再(zai)加(jia)(jia)(jia)(jia)熱(re)(re)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)軋(ya)制(zhi)(zhi)(zhi)等工藝(yi)生產。3.壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)頂底(di)復吹(chui)(chui)轉爐(lu)(lu)冶煉(lian)(lian)(lian)(lian)，堿度(du)3.03.5,終點目標(biao):C為0.06%?0.10%,P彡(shan)0.010%,S彡(shan)0.008%;出(chu)(chu)(chu)鋼(gang)(gang)時(shi)(shi)(shi)加(jia)(jia)(jia)(jia)擋渣(zha)棒、擋渣(zha)塞擋渣(zha)；出(chu)(chu)(chu)鋼(gang)(gang)時(shi)(shi)(shi)間(jian)(jian)(jian)>4分鐘(zhong)(zhong)，出(chu)(chu)(chu)鋼(gang)(gang)過(guo)程(cheng)中保(bao)證(zheng)鋼(gang)(gang)包全程(cheng)吹(chui)(chui)氬；脫氧合金化(hua)(hua)(hua)(hua)(hua)(hua):合金在(zai)(zai)(zai)出(chu)(chu)(chu)鋼(gang)(gang)4/5前加(jia)(jia)(jia)(jia)完，出(chu)(chu)(chu)鋼(gang)(gang)過(guo)程(cheng)中加(jia)(jia)(jia)(jia)小顆粒石灰、螢(ying)石；出(chu)(chu)(chu)鋼(gang)(gang)完畢，CA S站吹(chui)(chui)氬>10分鐘(zhong)(zhong)，喂鋁線(xian)1.6m/t4.壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)LF+VD或(huo)RH爐(lu)(lu)外精煉(lian)(lian)(lian)(lian)；LF精煉(lian)(lian)(lian)(lian)造(zao)(zao)白渣(zha)處理，VD或(huo)RH保(bao)真空時(shi)(shi)(shi)間(jian)(jian)(jian)15?20分鐘(zhong)(zhong)，純(chun)脫氣時(shi)(shi)(shi)間(jian)(jian)(jian)15?20分鐘(zhong)(zhong)，喂鈣線(xian)1.2m/t軟吹(chui)(chui)時(shi)(shi)(shi)間(jian)(jian)(jian)彡(shan)15分鐘(zhong)(zhong)。5.壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)連鑄(zhu)，連鑄(zhu)過(guo)程(cheng)中動態二(er)(er)冷(leng)配水采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)AmedC配水，靜(jing)態二(er)(er)冷(leng)配水采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)弱冷(leng)，使用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)中碳(tan)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)保(bao)護(hu)洛(luo)，中包使用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)低碳(tan)堿性(xing)覆蓋劑，化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)拉速0.9?1.2m/min中間(jian)(jian)(jian)包過(guo)熱(re)(re)度(du)15?25°C6.壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)再(zai)加(jia)(jia)(jia)(jia)熱(re)(re)，加(jia)(jia)(jia)(jia)熱(re)(re)時(shi)(shi)(shi)間(jian)(jian)(jian)8min/cm加(jia)(jia)(jia)(jia)熱(re)(re)后(hou)出(chu)(chu)(chu)爐(lu)(lu)溫(wen)度(du)1130?1180°C7.壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu):化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)軋(ya)制(zhi)(zhi)(zhi)，化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)加(jia)(jia)(jia)(jia)熱(re)(re)出(chu)(chu)(chu)爐(lu)(lu)后(hou)進行(xing)(xing)高(gao)壓(ya)(ya)(ya)水除磷(lin)，采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)粗軋(ya)和(he)精軋(ya)兩階段軋(ya)制(zhi)(zhi)(zhi)，精軋(ya)終軋(ya)溫(wen)度(du)870°C?900°C軋(ya)制(zhi)(zhi)(zhi)后(hou)弛豫(yu)停(ting)頓時(shi)(shi)(shi)間(jian)(jian)(jian)20?30弛豫(yu)后(hou)進行(xing)(xing)快速冷(leng)卻，冷(leng)卻速度(du)10?25°C/s8.根據權利(li)要求1所述(shu)的(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)，其(qi)(qi)(qi)(qi)特征(zheng)(zheng)在(zai)(zai)(zai)于(yu)，所述(shu)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)的(de)(de)(de)厚度(du)^50mm專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)利(li)摘要】本(ben)發(fa)明(ming)涉及(ji)一種(zhong)壓(ya)(ya)(ya)力(li)(li)容(rong)器用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)及(ji)其(qi)(qi)(qi)(qi)制(zhi)(zhi)(zhi)造(zao)(zao)方法(fa)。本(ben)發(fa)明(ming)化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)包括重量百(bai)分比(bi)(bi)計的(de)(de)(de)下述(shu)組分：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(yu)量為鐵和(he)不(bu)可避(bi)免的(de)(de)(de)雜質。本(ben)發(fa)明(ming)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)頂底(di)復吹(chui)(chui)轉爐(lu)(lu)冶煉(lian)(lian)(lian)(lian)，LF＋VD或(huo)RH爐(lu)(lu)外精煉(lian)(lian)(lian)(lian)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)連鑄(zhu)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)再(zai)加(jia)(jia)(jia)(jia)熱(re)(re)、化(hua)(hua)(hua)(hua)(hua)(hua)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)專(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)軋(ya)制(zhi)(zhi)(zhi)等工藝(yi)生產，屈服強(qiang)(qiang)(qiang)度(du)≥325MPa抗拉強(qiang)(qiang)(qiang)度(du)≥585MPa屈強(qiang)(qiang)(qiang)比(bi)(bi)≤0.75350℃高(gao)溫(wen)性(xing)能Rp0.2≥220MPa本(ben)發(fa)明(ming)具有較(jiao)高(gao)的(de)(de)(de)強(qiang)(qiang)(qiang)度(du)、較(jiao)低的(de)(de)(de)屈強(qiang)(qiang)(qiang)比(bi)(bi)、良好的(de)(de)(de)高(gao)溫(wen)性(xing)能和(he)焊接(jie)性(xing)能等，保(bao)證(zheng)了該鋼(gang)(gang)板制(zhi)(zhi)(zhi)造(zao)(zao)的(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)容(rong)器在(zai)(zai)(zai)高(gao)溫(wen)環境(jing)中使用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)安全性(xing)。

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