無錫鋼管廠代理商|創聯金屬提供寶鋼產鍋爐用無縫鋼管
無縫鋼管生產工藝:
1.熱(re)軋(ya)(ya)(擠(ji)壓(ya)(ya)無縫(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)):圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)→加(jia)熱(re)→穿(chuan)孔(kong)→三(san)輥斜軋(ya)(ya)、連軋(ya)(ya)或(huo)擠(ji)壓(ya)(ya)→脫管(guan)(guan)(guan)(guan)(guan)(guan)→定(ding)徑(jing)(jing)(或(huo)減(jian)徑(jing)(jing))→冷(leng)(leng)卻(que)→矯直(zhi)(zhi)→水(shui)(shui)壓(ya)(ya)試驗(yan)(或(huo)探(tan)傷(shang))→標記(ji)→入(ru)庫(ku) 軋(ya)(ya)制(zhi)無縫(feng)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)原料(liao)是(shi)(shi)圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi),圓管(guan)(guan)(guan)(guan)(guan)(guan)胚(pei)要(yao)(yao)(yao)經(jing)(jing)(jing)過(guo)(guo)切割機(ji)(ji)(ji)的(de)(de)(de)切割加(jia)工成(cheng)(cheng)長(chang)度(du)約(yue)為1米的(de)(de)(de)坯(pi)(pi)料(liao),并經(jing)(jing)(jing)傳送帶送到(dao)熔爐內(nei)加(jia)熱(re)。鋼(gang)(gang)(gang)(gang)坯(pi)(pi)被送入(ru)熔爐內(nei)加(jia)熱(re),溫度(du)大(da)(da)約(yue)為1200攝氏度(du)。燃料(liao)為氫氣(qi)或(huo)乙炔。爐內(nei)溫度(du)控制(zhi)是(shi)(shi)關(guan)鍵(jian)性(xing)的(de)(de)(de)問題(ti).圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)出(chu)爐后(hou)(hou)要(yao)(yao)(yao)經(jing)(jing)(jing)過(guo)(guo)壓(ya)(ya)力(li)穿(chuan)孔(kong)機(ji)(ji)(ji)進行穿(chuan)空。一般較(jiao)常見(jian)的(de)(de)(de)穿(chuan)孔(kong)機(ji)(ji)(ji)是(shi)(shi)錐形(xing)輥穿(chuan)孔(kong)機(ji)(ji)(ji),這種穿(chuan)孔(kong)機(ji)(ji)(ji)生(sheng)(sheng)(sheng)(sheng)產效率高(gao),產品質(zhi)量好(hao),穿(chuan)孔(kong)擴徑(jing)(jing)量大(da)(da),可(ke)穿(chuan)多(duo)種鋼(gang)(gang)(gang)(gang)種。穿(chuan)孔(kong)后(hou)(hou),圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)就先后(hou)(hou)被三(san)輥斜軋(ya)(ya)、連軋(ya)(ya)或(huo)擠(ji)壓(ya)(ya)。擠(ji)壓(ya)(ya)后(hou)(hou)要(yao)(yao)(yao)脫管(guan)(guan)(guan)(guan)(guan)(guan)定(ding)徑(jing)(jing)。定(ding)徑(jing)(jing)機(ji)(ji)(ji)通(tong)(tong)過(guo)(guo)錐形(xing)鉆頭(tou)高(gao)速(su)旋轉入(ru)鋼(gang)(gang)(gang)(gang)胚(pei)打孔(kong),形(xing)成(cheng)(cheng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)徑(jing)(jing)由(you)定(ding)徑(jing)(jing)機(ji)(ji)(ji)鉆頭(tou)的(de)(de)(de)外徑(jing)(jing)長(chang)度(du)來確定(ding)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經(jing)(jing)(jing)定(ding)徑(jing)(jing)后(hou)(hou),進入(ru)冷(leng)(leng)卻(que)塔中,通(tong)(tong)過(guo)(guo)噴水(shui)(shui)冷(leng)(leng)卻(que),鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經(jing)(jing)(jing)冷(leng)(leng)卻(que)后(hou)(hou),就要(yao)(yao)(yao)被矯直(zhi)(zhi)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經(jing)(jing)(jing)矯直(zhi)(zhi)后(hou)(hou)由(you)傳送帶送至金屬探(tan)傷(shang)機(ji)(ji)(ji)(或(huo)水(shui)(shui)壓(ya)(ya)實驗(yan))進行內(nei)部探(tan)傷(shang)。若(ruo)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)部有(you)裂紋,氣(qi)泡等(deng)問題(ti),將被探(tan)測出(chu)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)還要(yao)(yao)(yao)通(tong)(tong)過(guo)(guo)嚴格(ge)的(de)(de)(de)手(shou)(shou)工挑選。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou),用油漆(qi)噴上編號、規(gui)格(ge)、生(sheng)(sheng)(sheng)(sheng)產批號等(deng)。并由(you)吊車吊入(ru)倉庫(ku)中。 2.冷(leng)(leng)拔(ba)(軋(ya)(ya))無縫(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan):圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)→加(jia)熱(re)→穿(chuan)孔(kong)→打頭(tou)→退(tui)(tui)火(huo)→酸洗(xi)→涂(tu)油(鍍銅(tong))→多(duo)道次冷(leng)(leng)拔(ba)(冷(leng)(leng)軋(ya)(ya))→坯(pi)(pi)管(guan)(guan)(guan)(guan)(guan)(guan)→熱(re)處(chu)理→矯直(zhi)(zhi)→水(shui)(shui)壓(ya)(ya)試驗(yan)(探(tan)傷(shang))→標記(ji)→入(ru)庫(ku)。 冷(leng)(leng)拔(ba)(軋(ya)(ya))無縫(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)軋(ya)(ya)制(zhi)方法較(jiao)熱(re)軋(ya)(ya)(擠(ji)壓(ya)(ya)無縫(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan))復雜(za)。它們的(de)(de)(de)生(sheng)(sheng)(sheng)(sheng)產工藝流程前三(san)步基本相同。不同之處(chu)從第(di)四個步驟開(kai)始,圓管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)經(jing)(jing)(jing)打空后(hou)(hou),要(yao)(yao)(yao)打頭(tou),退(tui)(tui)火(huo)。退(tui)(tui)火(huo)后(hou)(hou)要(yao)(yao)(yao)用專門的(de)(de)(de)酸性(xing)液體進行酸洗(xi)。酸洗(xi)后(hou)(hou),涂(tu)油。然后(hou)(hou)緊接(jie)著是(shi)(shi)經(jing)(jing)(jing)過(guo)(guo)多(duo)道次冷(leng)(leng)拔(ba)(冷(leng)(leng)軋(ya)(ya))再坯(pi)(pi)管(guan)(guan)(guan)(guan)(guan)(guan),專門的(de)(de)(de)熱(re)處(chu)理。熱(re)處(chu)理后(hou)(hou),就要(yao)(yao)(yao)被矯直(zhi)(zhi)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經(jing)(jing)(jing)矯直(zhi)(zhi)后(hou)(hou)由(you)傳送帶送至金屬探(tan)傷(shang)機(ji)(ji)(ji)(或(huo)水(shui)(shui)壓(ya)(ya)實驗(yan))進行內(nei)部探(tan)傷(shang)。若(ruo)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)部有(you)裂紋,氣(qi)泡等(deng)問題(ti),將被探(tan)測出(chu)。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)還要(yao)(yao)(yao)通(tong)(tong)過(guo)(guo)嚴格(ge)的(de)(de)(de)手(shou)(shou)工挑選。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou),用油漆(qi)噴上編號、規(gui)格(ge)、生(sheng)(sheng)(sheng)(sheng)產批號等(deng)。并由(you)吊車吊入(ru)倉庫(ku)中。
寶山鋼鐵股份有(you)限公司企業標(biao)準
Q/BQB 201-2003
鍋爐(lu)用無縫鋼管 代(dai)替 Q/BQB 201-1999
1、范(fan)圍(wei)
本標準規定(ding)了鍋爐用無縫鋼(gang)管的分類、尺(chi)寸(cun)、外形、重量(liang)及允許偏差、技術(shu)要求、檢驗與試驗、包裝、標志和質(zhi)量(liang)證明書等。
本標準適用(yong)于寶(bao)山鋼(gang)鐵股份有(you)限公司(si)生產的(de)用(yong)于制造蒸(zheng)汽(qi)鍋(guo)爐、管道(dao)等的(de)熱軋(ya)無縫鋼(gang)管。
2、規范性引用文件
下(xia)列文件(jian)中(zhong)的(de)(de)條款通過本標準(zhun)的(de)(de)引(yin)用而(er)成(cheng)為本標準(zhun)的(de)(de)條款。凡是(shi)注日期的(de)(de)引(yin)用文件(jian),其隨后所有的(de)(de)修(xiu)改單(dan)(不(bu)包括勘誤的(de)(de)內容)或修(xiu)訂版均不(bu)適(shi)用于(yu)本標準(zhun),然而(er),鼓勵(li)根據本標準(zhun)達成(cheng)協議的(de)(de)各(ge)方研(yan)究(jiu)是(shi)否可使(shi)用這些文件(jian)的(de)(de)最新(xin)版本。凡是(shi)不(bu)注日期的(de)(de)引(yin)用文件(jian),其最新(xin)版本適(shi)用于(yu)本標準(zhun)。
GB/T 222 鋼的化學分析用試樣取樣方(fang)法及化學成分允許偏差(cha)
GB/T 226 鋼的低倍組織(zhi)及缺陷酸蝕(shi)試驗(yan)法(fa)
GB/T 228 金(jin)屬(shu)材料 室(shi)溫拉伸試驗(yan)方法
GB/T 229 金屬夏比缺(que)口沖(chong)擊試驗方法(fa)
GB/T 1979 結(jie)構(gou)鋼(gang)低倍組織(zhi)缺陷評級圖
GB/T 2102 鋼管的驗收、包裝、標志及質量證明書
GB/T 4336 碳素(su)鋼和中低(di)合(he)金鋼火花源(yuan)原子發(fa)射光譜分析方(fang)法(常規法)
GB/T 4338 金屬材料 高溫拉伸(shen)試驗(yan)
GB/T 5777 無縫鋼(gang)管超聲波(bo)探傷方法
GB/T 10561 鋼(gang)中非金屬夾雜物顯微組織評定(ding)方法
GB/T 13298 金屬顯(xian)微(wei)組織檢驗方(fang)法
YB/T 5148 金屬平均晶粒度測(ce)定方法
ASTM A 450-1996 碳(tan)鋼(gang)(gang)、鐵(tie)素體(ti)和(he)奧氏(shi)體(ti)合金鋼(gang)(gang)鋼(gang)(gang)管(guan)一般要求
DIN EN 10236-1994 鋼(gang)的試驗 管(guan)子的環狀擴口試驗
DIN 50115-1991 金屬(shu)材料試驗 沖(chong)擊韌(ren)性試(shi)驗
SEP 1915-1994 耐熱鋼管縱(zong)向缺陷的(de)超聲波檢驗
SEP 1918-1992 耐熱(re)鋼管橫(heng)向(xiang)缺(que)陷的超聲(sheng)波檢驗
SEP 1919-1977 耐熱鋼管分層缺陷的超聲波檢驗
SEP 1925-1980 鋼管(guan)的渦(wo)流密實性(xing)檢驗
3、分類
3.1 鋼管按供(gong)貨質量等級分(fen)為(wei)Ⅰ、Ⅲ兩(liang)類,由非合(he)金鋼制成的(de)鋼管分Ⅰ、Ⅲ兩類,由(you)合金鋼制成的鋼管(guan)只有Ⅲ類。