NEWS
1.制造對焊管件(jian)的原(yuan)材(cai)料(liao)為鋼板(ban)，常用(yong)材(cai)料(liao)牌號(hao)及相關標準(zhun)見表16-8。根據用(yong)戶要(yao)求，管件(jian)也可(ke)采用(yong)非表列的其(qi)他材(cai)料(liao)制造。2.制造對焊管件(jian)的鋼板(ban)必(bi)須(xu)有(you)質量合(he)格證明(ming)書，并應根據有(you)關標準(zhun)規范要(yao)求做化學分析和機(ji)械性能的復驗，確(que)認合(he)格后方可(ke)使用(yong)。3.鋼板(ban)兩面(mian)不得有(you)裂(lie)縫、折疊、軋(ya)折、離層、...
化工(gong)鋼(gang)(gang)制(zhi)有縫(feng)對焊管(guan)(guan)件是(shi)用(yong)碳鋼(gang)(gang)、低(di)合金(jin)鋼(gang)(gang)和(he)奧(ao)氏體不銹鋼(gang)(gang)鋼(gang)(gang)板(ban)制(zhi)造的(de)具有縱(zong)向(xiang)焊縫(feng)的(de)管(guan)(guan)件，其品(pin)種包括三(san)通（等徑(jing)和(he)異徑(jing)）、彎頭（短半徑(jing)90°和(he)長半徑(jing)90°、45°）、異徑(jing)管(guan)(guan)或異徑(jing)接頭（同心(xin)和(he)偏心(xin)）三(san)種，與接管(guan)(guan)連接的(de)方(fang)式為對焊連接，端(duan)部(bu)外徑(jing)分為Ⅰ系列和(he)Ⅱ系列，是(shi)專供(gong)化工(gong)行業大(da)型管(guan)(guan)道(dao)使(shi)用(yong)的(de)一種...
專用管(guan)(guan)件(jian)(jian)(jian)(jian)系指(zhi)在特定使(shi)用場合使(shi)用的管(guan)(guan)件(jian)(jian)(jian)(jian)，其使(shi)用范圍較通用管(guan)(guan)件(jian)(jian)(jian)(jian)窄一(yi)些。本篇所介(jie)紹的專用管(guan)(guan)件(jian)(jian)(jian)(jian)包括不銹(xiu)鋼(gang)(gang)卡壓式管(guan)(guan)件(jian)(jian)(jian)(jian)；電站(zhan)鋼(gang)(gang)制(zhi)對焊(han)(han)管(guan)(guan)件(jian)(jian)(jian)(jian)；電站(zhan)彎(wan)管(guan)(guan)；化工鋼(gang)(gang)制(zhi)無縫對焊(han)(han)管(guan)(guan)件(jian)(jian)(jian)(jian)；化工鋼(gang)(gang)制(zhi)有縫對焊(han)(han)管(guan)(guan)件(jian)(jian)(jian)(jian)；化工鋼(gang)(gang)制(zhi)承(cheng)插焊(han)(han)管(guan)(guan)件(jian)(jian)(jian)(jian)及(ji)襯塑（PP、PE、PVC）鋼(gang)(gang)管(guan)(guan)和(he)管(guan)(guan)件(jian)(jian)(jian)(jian)等7部分內容。與通用管(guan)(guan)件(jian)(jian)(jian)(jian)相比，...
化工鋼制有(you)縫對(dui)焊管(guan)件是(shi)用碳鋼、低合金鋼和(he)(he)奧氏(shi)體不(bu)銹鋼鋼板制造的(de)(de)具有(you)縱(zong)向(xiang)焊縫的(de)(de)管(guan)件，其品種包括三通（等徑(jing)和(he)(he)異(yi)徑(jing)）、彎頭（短半(ban)徑(jing)90°和(he)(he)長半(ban)徑(jing)90°、45°）、異(yi)徑(jing)管(guan)或異(yi)徑(jing)接(jie)頭（同心和(he)(he)偏心）三種，與接(jie)管(guan)連(lian)接(jie)的(de)(de)方式(shi)為對(dui)焊連(lian)接(jie)，端(duan)部外徑(jing)分為Ⅰ系列和(he)(he)Ⅱ系列，是(shi)專供(gong)化工行業(ye)大型...
化(hua)(hua)工鋼(gang)制(zhi)無(wu)縫對焊(han)管(guan)件是以碳(tan)鋼(gang)、低合金鋼(gang)材料或無(wu)縫鋼(gang)管(guan)制(zhi)造的(de)無(wu)縫管(guan)件，管(guan)件與(yu)管(guan)子的(de)連(lian)接采用(yong)對焊(han)式。管(guan)件的(de)品種(zhong)包括三通(tong)（等(deng)徑(jing)(jing)與(yu)異(yi)(yi)徑(jing)(jing)）、90°彎(wan)頭（長半徑(jing)(jing)與(yu)短半徑(jing)(jing)）、異(yi)(yi)徑(jing)(jing)管(guan)或異(yi)(yi)徑(jing)(jing)接頭（同心與(yu)偏心）和管(guan)帽4種(zhong)，尺(chi)寸分公制(zhi)和英制(zhi)兩個系列。此種(zhong)管(guan)件主要用(yong)于(yu)化(hua)(hua)工及(ji)石油化(hua)(hua)工企(qi)業。1...
1.化(hua)工(gong)鋼(gang)制無縫不(bu)銹鋼(gang)對焊(han)管(guan)件若(ruo)采用冷(leng)加(jia)工(gong)工(gong)藝(yi)，成型(xing)后須進行消除(chu)應(ying)力的(de)(de)熱(re)處(chu)(chu)(chu)理。若(ruo)采用熱(re)加(jia)工(gong)工(gong)藝(yi)，當其終(zhong)壓溫度低于表15-16所列終(zhong)壓溫度時，也(ye)必須進行熱(re)處(chu)(chu)(chu)理，毛坯的(de)(de)加(jia)熱(re)工(gong)藝(yi)及熱(re)處(chu)(chu)(chu)理工(gong)藝(yi)可按表15-16。2.不(bu)銹鋼(gang)三通應(ying)保證(zheng)兩側的(de)(de)增厚一致，肩部圓角過渡(du)部分的(de)(de)壁厚應(ying)保證(zheng)大于或等于...
化(hua)工鋼(gang)(gang)制無(wu)縫(feng)對焊管(guan)件是以碳鋼(gang)(gang)、低合金鋼(gang)(gang)材料或無(wu)縫(feng)鋼(gang)(gang)管(guan)制造的(de)無(wu)縫(feng)管(guan)件，管(guan)件與(yu)管(guan)子的(de)連接采用對焊式。不銹鋼(gang)(gang)管(guan)件的(de)品種包括三通（等徑(jing)與(yu)異徑(jing)）、90°彎頭（長(chang)半徑(jing)與(yu)短半徑(jing)）、異徑(jing)管(guan)或異徑(jing)接頭（同心(xin)與(yu)偏心(xin)）和(he)管(guan)帽4種，尺(chi)寸分公制和(he)英制兩個系列。此種管(guan)件主要用于(yu)化(hua)工及(ji)石油化(hua)工企...
化(hua)工鋼制(zhi)(zhi)(zhi)無縫不銹鋼對焊(han)管件(jian)結構型式(shi)(shi)與尺(chi)寸(cun)見(jian)(jian)下(xia)表(biao)一、管件(jian) 1.三(san)(san)(san)通 三(san)(san)(san)通型式(shi)(shi)見(jian)(jian)圖15-1，公制(zhi)(zhi)(zhi)三(san)(san)(san)通尺(chi)寸(cun)見(jian)(jian)表(biao)15-1；英制(zhi)(zhi)(zhi)三(san)(san)(san)通尺(chi)寸(cun)見(jian)(jian)表(biao)15-2。 a.短半徑彎(wan)頭(tou) 短半徑彎(wan)頭(tou)型式(shi)(shi)見(jian)(jian)圖15-2，公制(zhi)(zhi)(zhi)三(san)(san)(san)通尺(chi)寸(cun)見(jian)(jian)表(biao)15-3；英制(zhi)(zhi)(zhi)三(san)(san)(san)通...
化工(gong)(gong)鋼制無縫對焊管件(jian)是以(yi)碳鋼、低合金鋼材料或無縫鋼管制造的(de)(de)無縫管件(jian)，管件(jian)與(yu)管子(zi)的(de)(de)連接(jie)采(cai)用對焊式。管件(jian)的(de)(de)品種(zhong)包括三通（等(deng)徑(jing)與(yu)異徑(jing)）、90°彎頭(tou)（長半徑(jing)與(yu)短半徑(jing)）、異徑(jing)管或異徑(jing)接(jie)頭(tou)（同心(xin)與(yu)偏(pian)心(xin)）和管帽4種(zhong)，尺寸分公制和英制兩個系列。此種(zhong)管件(jian)主要用于化工(gong)(gong)及石油化工(gong)(gong)企業。1...
1.電站彎(wan)管標記 a.標記方(fang)法(fa) 對于(yu)外徑管，電站彎(wan)管標記方(fang)法(fa)如下： b.標記示(shi)例 外徑OD為(wei)(wei)325mm，壁厚S為(wei)(wei)30mm，鋼號為(wei)(wei)12CrlMoV，彎(wan)曲半徑R為(wei)(wei)1300mm，彎(wan)曲角度0為(wei)(wei)90°的彎(wan)管表示(shi)為(wei)(wei)：OD32...
a.不(bu)(bu)銹鋼彎管表(biao)面(mian)不(bu)(bu)應(ying)有裂紋(wen)、折(zhe)疊、重(zhong)皮、凹陷(xian)(xian)、尖銳劃痕等缺陷(xian)(xian)。表(biao)面(mian)以現(xian)裂紋(wen)、重(zhong)皮等缺陷(xian)(xian)，應(ying)逐步修磨直(zhi)(zhi)至缺陷(xian)(xian)完全(quan)消除，修磨后(hou)的實(shi)際壁(bi)厚(hou)應(ying)符合14.3.2.6c條要求。b.不(bu)(bu)銹鋼彎管不(bu)(bu)應(ying)有過燒組(zu)織(zhi)，不(bu)(bu)應(ying)出現(xian)晶間裂紋(wen)。c. 不(bu)(bu)銹鋼彎管任何(he)一點的實(shi)測壁(bi)厚(hou)不(bu)(bu)應(ying)小于管系直(zhi)(zhi)管...
電站用不(bu)銹鋼(gang)彎(wan)(wan)(wan)管是用規定(ding)(ding)壁厚的直(zhi)管，在(zai)規定(ding)(ding)加(jia)熱溫(wen)度條(tiao)件下，按一(yi)定(ding)(ding)的彎(wan)(wan)(wan)曲(qu)半徑(jing)熱彎(wan)(wan)(wan)成形的一(yi)種(zhong)不(bu)銹鋼(gang)彎(wan)(wan)(wan)管，主(zhu)(zhu)要用于電站主(zhu)(zhu)蒸(zheng)汽、再(zai)熱蒸(zheng)汽、主(zhu)(zhu)給水(shui)管道及一(yi)般(ban)鋼(gang)制(zhi)汽水(shui)管道。 a.公稱壁厚大于19.0mm的碳鋼(gang)管，若彎(wan)(wan)(wan)制(zhi)溫(wen)度低(di)于900℃，彎(wan)(wan)(wan)后(hou)應對(dui)彎(wan)(wan)(wan)管進行回火(huo)熱處理。&...
