亚洲欧美日韩综合久久久久久_黑人大荫蒂高潮视频_日本成a人片在线播放_国产精品无码久久四虎

          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)(re)(re)軋（擠(ji)壓(ya)(ya)(ya)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)）：圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)→加(jia)熱(re)(re)(re)→穿(chuan)孔(kong)(kong)(kong)→三輥(gun)斜軋、連(lian)軋或擠(ji)壓(ya)(ya)(ya)→脫(tuo)(tuo)管(guan)(guan)(guan)(guan)(guan)(guan)→定(ding)(ding)徑（或減徑）→冷卻→矯(jiao)(jiao)(jiao)直(zhi)(zhi)→水壓(ya)(ya)(ya)試驗(yan)(yan)（或探(tan)傷(shang)）→標記(ji)→入(ru)(ru)(ru)庫 軋制(zhi)(zhi)無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)原(yuan)料是(shi)圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)，圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)胚要(yao)(yao)(yao)經過(guo)切割機(ji)(ji)的(de)(de)(de)切割加(jia)工(gong)(gong)成長度(du)約為1米的(de)(de)(de)坯(pi)(pi)料，并(bing)經傳送(song)(song)帶送(song)(song)到(dao)熔爐內(nei)加(jia)熱(re)(re)(re)。鋼(gang)(gang)(gang)(gang)(gang)坯(pi)(pi)被送(song)(song)入(ru)(ru)(ru)熔爐內(nei)加(jia)熱(re)(re)(re)，溫度(du)大(da)約為1200攝氏度(du)。燃料為氫氣(qi)或乙炔。爐內(nei)溫度(du)控制(zhi)(zhi)是(shi)關鍵性(xing)(xing)的(de)(de)(de)問題(ti).圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)出(chu)爐后(hou)(hou)(hou)(hou)要(yao)(yao)(yao)經過(guo)壓(ya)(ya)(ya)力穿(chuan)孔(kong)(kong)(kong)機(ji)(ji)進行(xing)穿(chuan)空(kong)。一(yi)般較常見的(de)(de)(de)穿(chuan)孔(kong)(kong)(kong)機(ji)(ji)是(shi)錐形輥(gun)穿(chuan)孔(kong)(kong)(kong)機(ji)(ji)，這種(zhong)(zhong)穿(chuan)孔(kong)(kong)(kong)機(ji)(ji)生(sheng)(sheng)產(chan)效(xiao)率(lv)高，產(chan)品質(zhi)量好，穿(chuan)孔(kong)(kong)(kong)擴徑量大(da)，可穿(chuan)多種(zhong)(zhong)鋼(gang)(gang)(gang)(gang)(gang)種(zhong)(zhong)。穿(chuan)孔(kong)(kong)(kong)后(hou)(hou)(hou)(hou)，圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)就(jiu)先后(hou)(hou)(hou)(hou)被三輥(gun)斜軋、連(lian)軋或擠(ji)壓(ya)(ya)(ya)。擠(ji)壓(ya)(ya)(ya)后(hou)(hou)(hou)(hou)要(yao)(yao)(yao)脫(tuo)(tuo)管(guan)(guan)(guan)(guan)(guan)(guan)定(ding)(ding)徑。定(ding)(ding)徑機(ji)(ji)通過(guo)錐形鉆頭高速旋轉入(ru)(ru)(ru)鋼(gang)(gang)(gang)(gang)(gang)胚打(da)孔(kong)(kong)(kong)，形成鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)徑由定(ding)(ding)徑機(ji)(ji)鉆頭的(de)(de)(de)外徑長度(du)來確定(ding)(ding)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經定(ding)(ding)徑后(hou)(hou)(hou)(hou)，進入(ru)(ru)(ru)冷卻塔中，通過(guo)噴水冷卻，鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經冷卻后(hou)(hou)(hou)(hou)，就(jiu)要(yao)(yao)(yao)被矯(jiao)(jiao)(jiao)直(zhi)(zhi)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經矯(jiao)(jiao)(jiao)直(zhi)(zhi)后(hou)(hou)(hou)(hou)由傳送(song)(song)帶送(song)(song)至(zhi)金屬(shu)探(tan)傷(shang)機(ji)(ji)（或水壓(ya)(ya)(ya)實驗(yan)(yan)）進行(xing)內(nei)部(bu)(bu)探(tan)傷(shang)。若鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)部(bu)(bu)有裂紋(wen)，氣(qi)泡等(deng)問題(ti)，將被探(tan)測出(chu)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)(hou)(hou)還要(yao)(yao)(yao)通過(guo)嚴(yan)格的(de)(de)(de)手工(gong)(gong)挑選(xuan)(xuan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)(hou)(hou)，用油漆噴上編(bian)號、規格、生(sheng)(sheng)產(chan)批號等(deng)。并(bing)由吊車吊入(ru)(ru)(ru)倉(cang)庫中。 2.冷拔(ba)（軋）無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)：圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)→加(jia)熱(re)(re)(re)→穿(chuan)孔(kong)(kong)(kong)→打(da)頭→退(tui)(tui)火→酸洗→涂油（鍍銅）→多道次(ci)冷拔(ba)（冷軋）→坯(pi)(pi)管(guan)(guan)(guan)(guan)(guan)(guan)→熱(re)(re)(re)處(chu)(chu)理(li)→矯(jiao)(jiao)(jiao)直(zhi)(zhi)→水壓(ya)(ya)(ya)試驗(yan)(yan)（探(tan)傷(shang)）→標記(ji)→入(ru)(ru)(ru)庫。 冷拔(ba)（軋）無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)軋制(zhi)(zhi)方法較熱(re)(re)(re)軋（擠(ji)壓(ya)(ya)(ya)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)）復雜。它們(men)的(de)(de)(de)生(sheng)(sheng)產(chan)工(gong)(gong)藝流程前三步基本相同。不(bu)同之處(chu)(chu)從第四個步驟開(kai)始(shi)，圓(yuan)(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)(pi)經打(da)空(kong)后(hou)(hou)(hou)(hou)，要(yao)(yao)(yao)打(da)頭，退(tui)(tui)火。退(tui)(tui)火后(hou)(hou)(hou)(hou)要(yao)(yao)(yao)用專(zhuan)門(men)的(de)(de)(de)酸性(xing)(xing)液體(ti)進行(xing)酸洗。酸洗后(hou)(hou)(hou)(hou)，涂油。然后(hou)(hou)(hou)(hou)緊(jin)接著是(shi)經過(guo)多道次(ci)冷拔(ba)（冷軋）再坯(pi)(pi)管(guan)(guan)(guan)(guan)(guan)(guan)，專(zhuan)門(men)的(de)(de)(de)熱(re)(re)(re)處(chu)(chu)理(li)。熱(re)(re)(re)處(chu)(chu)理(li)后(hou)(hou)(hou)(hou)，就(jiu)要(yao)(yao)(yao)被矯(jiao)(jiao)(jiao)直(zhi)(zhi)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)經矯(jiao)(jiao)(jiao)直(zhi)(zhi)后(hou)(hou)(hou)(hou)由傳送(song)(song)帶送(song)(song)至(zhi)金屬(shu)探(tan)傷(shang)機(ji)(ji)（或水壓(ya)(ya)(ya)實驗(yan)(yan)）進行(xing)內(nei)部(bu)(bu)探(tan)傷(shang)。若鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)部(bu)(bu)有裂紋(wen)，氣(qi)泡等(deng)問題(ti)，將被探(tan)測出(chu)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)(hou)(hou)還要(yao)(yao)(yao)通過(guo)嚴(yan)格的(de)(de)(de)手工(gong)(gong)挑選(xuan)(xuan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)質(zhi)檢后(hou)(hou)(hou)(hou)，用油漆噴上編(bian)號、規格、生(sheng)(sheng)產(chan)批號等(deng)。并(bing)由吊車吊入(ru)(ru)(ru)倉(cang)庫中。

寶鋼產鍋爐用無縫鋼管標準及產品

寶山鋼鐵股份(fen)有限公(gong)司(si)企業標準

Q/BQB 201-2003
鍋(guo)爐用無縫鋼管(guan) 代替(ti) Q/BQB 201－1999

1、范圍
本標(biao)準(zhun)規定了鍋爐用無縫鋼管的分類(lei)、尺(chi)寸、外形、重量(liang)及允(yun)許偏差(cha)、技術要求、檢驗與試驗、包(bao)裝、標(biao)志和質量(liang)證明書(shu)等。
本(ben)標準(zhun)適用(yong)于寶(bao)山鋼鐵股份有限公(gong)司(si)生產的(de)用(yong)于制(zhi)造蒸汽(qi)鍋爐、管(guan)道等的(de)熱軋無(wu)縫(feng)鋼管(guan)。
2、規范性引(yin)用文件(jian)

下列(lie)文(wen)件(jian)中的(de)(de)條(tiao)款(kuan)通過(guo)本標(biao)(biao)準(zhun)的(de)(de)引(yin)用而成為本標(biao)(biao)準(zhun)的(de)(de)條(tiao)款(kuan)。凡是(shi)注(zhu)日期的(de)(de)引(yin)用文(wen)件(jian)，其(qi)隨(sui)后(hou)所(suo)有的(de)(de)修改單(dan)（不包(bao)括(kuo)勘誤的(de)(de)內容）或修訂版(ban)均不適用于本標(biao)(biao)準(zhun)，然而，鼓勵根據本標(biao)(biao)準(zhun)達成協議的(de)(de)各方研究是(shi)否(fou)可(ke)使(shi)用這些文(wen)件(jian)的(de)(de)最新版(ban)本。凡是(shi)不注(zhu)日期的(de)(de)引(yin)用文(wen)件(jian)，其(qi)最新版(ban)本適用于本標(biao)(biao)準(zhun)。
GB/T 222 鋼的化(hua)學分(fen)析用試樣(yang)取樣(yang)方法(fa)及化(hua)學成分(fen)允許偏(pian)差(cha)
GB/T 226 鋼的低倍組(zu)織及缺陷酸(suan)蝕(shi)試驗法
GB/T 228 金屬材料 室(shi)溫拉伸試驗方法
GB/T 229 金屬夏(xia)比缺口沖擊(ji)試驗方法
GB/T 1979 結構鋼低倍組(zu)織缺陷評(ping)級圖(tu)
GB/T 2102 鋼管的驗收、包裝、標(biao)志及質量證(zheng)明書(shu)
GB/T 4336 碳素(su)鋼和中低合金鋼火花源(yuan)原子發射(she)光譜分析方(fang)法（常規(gui)法）
GB/T 4338 金屬材料 高溫拉伸(shen)試驗
GB/T 5777 無縫(feng)鋼管超聲(sheng)波探傷(shang)方法
GB/T 10561 鋼中(zhong)非金屬夾雜物顯(xian)微組織評定方法
GB/T 13298 金屬(shu)顯微組織(zhi)檢驗方法
YB/T 5148 金屬平(ping)均晶粒度測定(ding)方法
ASTM A 450－1996 碳(tan)鋼、鐵素體和奧氏體合(he)金(jin)鋼鋼管一般要求
DIN EN 10236－1994 鋼的試驗 管(guan)子(zi)的環狀擴口試驗
DIN 50115－1991 金屬材料(liao)試驗(yan) 沖擊韌(ren)性試驗
SEP 1915－1994 耐熱(re)鋼管縱向(xiang)缺陷的超(chao)聲波檢驗
SEP 1918－1992 耐熱鋼管(guan)橫向缺陷的(de)超(chao)聲波檢驗
SEP 1919－1977 耐熱(re)鋼管(guan)分層缺陷的(de)超(chao)聲波檢驗
SEP 1925－1980 鋼管的渦流密實(shi)性檢(jian)驗(yan)

3、分類(lei)