NEWS
1.制造對焊管(guan)(guan)件的(de)原材料為(wei)鋼(gang)(gang)(gang)板，常用(yong)材料牌號及相關(guan)標準見表(biao)16-8。根據(ju)(ju)用(yong)戶(hu)要求(qiu)，管(guan)(guan)件也(ye)可采用(yong)非表(biao)列的(de)其(qi)他材料制造。2.制造對焊管(guan)(guan)件的(de)鋼(gang)(gang)(gang)板必須(xu)有(you)質(zhi)量合(he)格證明書(shu)，并應根據(ju)(ju)有(you)關(guan)標準規范要求(qiu)做化學分析和機械性能的(de)復(fu)驗，確認合(he)格后方可使用(yong)。3.鋼(gang)(gang)(gang)板兩面不得有(you)裂縫、折疊、軋折、離層、...
化工鋼(gang)制有(you)(you)縫對(dui)焊(han)管件是用碳鋼(gang)、低合(he)金(jin)鋼(gang)和(he)奧氏體不銹(xiu)鋼(gang)鋼(gang)板(ban)制造(zao)的(de)(de)具有(you)(you)縱向焊(han)縫的(de)(de)管件，其品種(zhong)(zhong)包括(kuo)三(san)通(tong)（等徑和(he)異(yi)徑）、彎頭（短半徑90°和(he)長半徑90°、45°）、異(yi)徑管或異(yi)徑接頭（同心和(he)偏心）三(san)種(zhong)(zhong)，與接管連(lian)接的(de)(de)方式為對(dui)焊(han)連(lian)接，端部(bu)外徑分(fen)為Ⅰ系列(lie)和(he)Ⅱ系列(lie)，是專供化工行業大型管道使用的(de)(de)一種(zhong)(zhong)...
專用(yong)(yong)(yong)管(guan)件(jian)系(xi)指在特定使(shi)用(yong)(yong)(yong)場合(he)使(shi)用(yong)(yong)(yong)的管(guan)件(jian)，其使(shi)用(yong)(yong)(yong)范圍較通(tong)用(yong)(yong)(yong)管(guan)件(jian)窄一(yi)些。本(ben)篇所介紹的專用(yong)(yong)(yong)管(guan)件(jian)包(bao)括不銹鋼卡壓式管(guan)件(jian)；電站鋼制(zhi)對焊(han)(han)(han)(han)管(guan)件(jian)；電站彎管(guan)；化工(gong)鋼制(zhi)無縫對焊(han)(han)(han)(han)管(guan)件(jian)；化工(gong)鋼制(zhi)有縫對焊(han)(han)(han)(han)管(guan)件(jian)；化工(gong)鋼制(zhi)承插焊(han)(han)(han)(han)管(guan)件(jian)及(ji)襯塑（PP、PE、PVC）鋼管(guan)和管(guan)件(jian)等7部分內容(rong)。與通(tong)用(yong)(yong)(yong)管(guan)件(jian)相比，...
化(hua)工鋼(gang)制(zhi)(zhi)有縫對(dui)焊(han)管件是用碳鋼(gang)、低合金鋼(gang)和(he)奧氏(shi)體不銹鋼(gang)鋼(gang)板制(zhi)(zhi)造的(de)具有縱向(xiang)焊(han)縫的(de)管件，其品(pin)種包括(kuo)三(san)通(tong)（等徑(jing)(jing)和(he)異(yi)徑(jing)(jing)）、彎頭（短半徑(jing)(jing)90°和(he)長(chang)半徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管或(huo)異(yi)徑(jing)(jing)接(jie)頭（同(tong)心(xin)和(he)偏心(xin)）三(san)種，與接(jie)管連(lian)接(jie)的(de)方式為(wei)對(dui)焊(han)連(lian)接(jie)，端部外徑(jing)(jing)分為(wei)Ⅰ系(xi)(xi)列(lie)和(he)Ⅱ系(xi)(xi)列(lie)，是專(zhuan)供化(hua)工行業大型(xing)...
化工(gong)鋼(gang)(gang)(gang)制無縫(feng)(feng)對焊管(guan)(guan)件(jian)(jian)是以(yi)碳鋼(gang)(gang)(gang)、低合金鋼(gang)(gang)(gang)材料或無縫(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)制造的無縫(feng)(feng)管(guan)(guan)件(jian)(jian)，管(guan)(guan)件(jian)(jian)與(yu)管(guan)(guan)子的連接采用(yong)對焊式。管(guan)(guan)件(jian)(jian)的品種包括三通（等徑(jing)(jing)(jing)與(yu)異徑(jing)(jing)(jing)）、90°彎頭(tou)（長半徑(jing)(jing)(jing)與(yu)短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管(guan)(guan)或異徑(jing)(jing)(jing)接頭(tou)（同(tong)心(xin)與(yu)偏心(xin)）和管(guan)(guan)帽4種，尺寸分(fen)公制和英制兩個系列。此種管(guan)(guan)件(jian)(jian)主(zhu)要用(yong)于化工(gong)及石油化工(gong)企業。1...
1.化工鋼制無縫不(bu)銹鋼對焊管(guan)件若采(cai)(cai)用(yong)冷加(jia)工工藝，成(cheng)型(xing)后須(xu)進行消除(chu)應力的(de)熱(re)處(chu)理。若采(cai)(cai)用(yong)熱(re)加(jia)工工藝，當其終壓溫度低于表15-16所列終壓溫度時，也必須(xu)進行熱(re)處(chu)理，毛坯(pi)的(de)加(jia)熱(re)工藝及熱(re)處(chu)理工藝可按表15-16。2.不(bu)銹鋼三(san)通應保證(zheng)兩(liang)側的(de)增厚(hou)一致，肩部圓角(jiao)過(guo)渡部分的(de)壁厚(hou)應保證(zheng)大于或等于...
化工鋼(gang)制(zhi)無(wu)縫對(dui)焊管(guan)件(jian)是以(yi)碳鋼(gang)、低合金(jin)鋼(gang)材料或(huo)無(wu)縫鋼(gang)管(guan)制(zhi)造的無(wu)縫管(guan)件(jian)，管(guan)件(jian)與(yu)(yu)管(guan)子(zi)的連(lian)接采用對(dui)焊式。不銹(xiu)鋼(gang)管(guan)件(jian)的品種包括三通（等(deng)徑(jing)(jing)(jing)與(yu)(yu)異徑(jing)(jing)(jing)）、90°彎頭（長半徑(jing)(jing)(jing)與(yu)(yu)短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管(guan)或(huo)異徑(jing)(jing)(jing)接頭（同心與(yu)(yu)偏心）和管(guan)帽4種，尺(chi)寸(cun)分公制(zhi)和英制(zhi)兩(liang)個系列。此種管(guan)件(jian)主要用于化工及石油化工企(qi)...
化工鋼(gang)制無縫不(bu)銹鋼(gang)對(dui)焊管件結構型式與尺寸(cun)(cun)見(jian)(jian)下表一(yi)、管件 1.三(san)通(tong)(tong) 三(san)通(tong)(tong)型式見(jian)(jian)圖(tu)(tu)15-1，公制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)表15-1；英制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)表15-2。 a.短(duan)半徑(jing)彎頭 短(duan)半徑(jing)彎頭型式見(jian)(jian)圖(tu)(tu)15-2，公制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)表15-3；英制三(san)通(tong)(tong)...
化工鋼(gang)制(zhi)無(wu)(wu)縫對(dui)焊管(guan)(guan)(guan)件(jian)是以(yi)碳鋼(gang)、低合金鋼(gang)材料(liao)或無(wu)(wu)縫鋼(gang)管(guan)(guan)(guan)制(zhi)造的(de)無(wu)(wu)縫管(guan)(guan)(guan)件(jian)，管(guan)(guan)(guan)件(jian)與(yu)管(guan)(guan)(guan)子的(de)連接(jie)采用(yong)對(dui)焊式。管(guan)(guan)(guan)件(jian)的(de)品種包括三(san)通（等(deng)徑(jing)與(yu)異徑(jing)）、90°彎頭（長半徑(jing)與(yu)短(duan)半徑(jing)）、異徑(jing)管(guan)(guan)(guan)或異徑(jing)接(jie)頭（同心(xin)與(yu)偏心(xin)）和管(guan)(guan)(guan)帽4種，尺寸分(fen)公制(zhi)和英(ying)制(zhi)兩(liang)個系(xi)列。此種管(guan)(guan)(guan)件(jian)主要用(yong)于化工及石油化工企業(ye)。1...
1.電站彎(wan)(wan)(wan)管(guan)標記 a.標記方法(fa) 對于外徑(jing)(jing)管(guan)，電站彎(wan)(wan)(wan)管(guan)標記方法(fa)如下： b.標記示例 外徑(jing)(jing)OD為325mm，壁厚(hou)S為30mm，鋼號(hao)為12CrlMoV，彎(wan)(wan)(wan)曲半(ban)徑(jing)(jing)R為1300mm，彎(wan)(wan)(wan)曲角度0為90°的彎(wan)(wan)(wan)管(guan)表示為：OD32...
a.不(bu)銹(xiu)鋼彎管表面不(bu)應(ying)有裂紋(wen)、折(zhe)疊、重皮、凹陷、尖銳(rui)劃痕等缺(que)陷。表面以現裂紋(wen)、重皮等缺(que)陷，應(ying)逐步修(xiu)磨直至缺(que)陷完全消除，修(xiu)磨后的(de)(de)實(shi)際壁厚應(ying)符合14.3.2.6c條要求。b.不(bu)銹(xiu)鋼彎管不(bu)應(ying)有過燒組織(zhi)，不(bu)應(ying)出現晶間裂紋(wen)。c. 不(bu)銹(xiu)鋼彎管任何一點的(de)(de)實(shi)測壁厚不(bu)應(ying)小于(yu)管系直管...
電(dian)站(zhan)用(yong)不(bu)銹鋼彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)是(shi)用(yong)規定(ding)(ding)壁(bi)厚的直管(guan)(guan)(guan)(guan)，在規定(ding)(ding)加熱(re)溫度條件(jian)下(xia)，按一定(ding)(ding)的彎(wan)(wan)(wan)曲半徑熱(re)彎(wan)(wan)(wan)成形的一種不(bu)銹鋼彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)，主(zhu)要用(yong)于電(dian)站(zhan)主(zhu)蒸汽、再熱(re)蒸汽、主(zhu)給水管(guan)(guan)(guan)(guan)道(dao)及一般鋼制汽水管(guan)(guan)(guan)(guan)道(dao)。 a.公稱壁(bi)厚大于19.0mm的碳(tan)鋼管(guan)(guan)(guan)(guan)，若彎(wan)(wan)(wan)制溫度低(di)于900℃，彎(wan)(wan)(wan)后應對(dui)彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)進(jin)行回(hui)火熱(re)處(chu)理。&...
