NEWS
1.制造對焊(han)(han)管(guan)件的原材(cai)料為(wei)鋼板，常用材(cai)料牌號及相(xiang)關標(biao)準(zhun)(zhun)見表16-8。根據(ju)用戶要求，管(guan)件也(ye)可(ke)采(cai)用非表列的其他(ta)材(cai)料制造。2.制造對焊(han)(han)管(guan)件的鋼板必須有(you)(you)質量合(he)格證明書，并(bing)應根據(ju)有(you)(you)關標(biao)準(zhun)(zhun)規范(fan)要求做化(hua)學分析和機械性能的復驗，確認(ren)合(he)格后(hou)方可(ke)使用。3.鋼板兩面不得有(you)(you)裂縫、折疊、軋(ya)折、離層、...
化(hua)(hua)工(gong)鋼(gang)(gang)制有(you)縫對焊管(guan)件是(shi)用碳(tan)鋼(gang)(gang)、低合金(jin)鋼(gang)(gang)和(he)(he)奧氏體不銹鋼(gang)(gang)鋼(gang)(gang)板制造的具(ju)有(you)縱向焊縫的管(guan)件，其品種包括(kuo)三(san)通（等徑(jing)(jing)和(he)(he)異(yi)(yi)徑(jing)(jing)）、彎(wan)頭（短半(ban)徑(jing)(jing)90°和(he)(he)長半(ban)徑(jing)(jing)90°、45°）、異(yi)(yi)徑(jing)(jing)管(guan)或異(yi)(yi)徑(jing)(jing)接頭（同(tong)心和(he)(he)偏心）三(san)種，與(yu)接管(guan)連接的方式為對焊連接，端部(bu)外徑(jing)(jing)分為Ⅰ系(xi)列(lie)和(he)(he)Ⅱ系(xi)列(lie)，是(shi)專供化(hua)(hua)工(gong)行業大型管(guan)道使(shi)用的一種...
專(zhuan)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)系指在特定使用(yong)(yong)(yong)場合使用(yong)(yong)(yong)的管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)，其使用(yong)(yong)(yong)范圍較(jiao)通用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)窄(zhai)一(yi)些。本篇所介(jie)紹(shao)的專(zhuan)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)包(bao)括不銹鋼(gang)卡(ka)壓式管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；電站鋼(gang)制(zhi)(zhi)對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；電站彎管(guan)(guan)(guan)；化(hua)工(gong)鋼(gang)制(zhi)(zhi)無縫對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；化(hua)工(gong)鋼(gang)制(zhi)(zhi)有縫對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；化(hua)工(gong)鋼(gang)制(zhi)(zhi)承插焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)及襯塑(su)（PP、PE、PVC）鋼(gang)管(guan)(guan)(guan)和管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)等(deng)7部分內容。與通用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)相比，...
化工鋼制有(you)縫對焊管件是用碳鋼、低合(he)金鋼和奧氏體(ti)不銹鋼鋼板制造的具有(you)縱向焊縫的管件，其品(pin)種包括三通(tong)（等(deng)徑(jing)(jing)和異徑(jing)(jing)）、彎頭(tou)（短半徑(jing)(jing)90°和長半徑(jing)(jing)90°、45°）、異徑(jing)(jing)管或(huo)異徑(jing)(jing)接頭(tou)（同心和偏心）三種，與接管連接的方式(shi)為對焊連接，端部外徑(jing)(jing)分(fen)為Ⅰ系列和Ⅱ系列，是專供化工行業大型...
化工鋼制(zhi)無(wu)(wu)縫(feng)對焊管(guan)件(jian)(jian)是以(yi)碳鋼、低合(he)金鋼材料(liao)或無(wu)(wu)縫(feng)鋼管(guan)制(zhi)造的(de)無(wu)(wu)縫(feng)管(guan)件(jian)(jian)，管(guan)件(jian)(jian)與(yu)管(guan)子的(de)連接(jie)采用(yong)對焊式。管(guan)件(jian)(jian)的(de)品(pin)種包括三通（等徑與(yu)異(yi)徑）、90°彎(wan)頭(tou)（長半徑與(yu)短半徑）、異(yi)徑管(guan)或異(yi)徑接(jie)頭(tou)（同心與(yu)偏心）和(he)管(guan)帽4種，尺(chi)寸分公(gong)制(zhi)和(he)英制(zhi)兩個系(xi)列。此種管(guan)件(jian)(jian)主(zhu)要用(yong)于(yu)化工及石(shi)油化工企業(ye)。1...
1.化工(gong)(gong)(gong)(gong)鋼制無縫不銹鋼對焊管件若(ruo)采用冷加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝，成型后須(xu)進行消除應(ying)力的熱(re)處理(li)。若(ruo)采用熱(re)加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝，當其終(zhong)壓(ya)溫(wen)度(du)低于(yu)(yu)(yu)表(biao)15-16所列終(zhong)壓(ya)溫(wen)度(du)時(shi)，也必須(xu)進行熱(re)處理(li)，毛坯(pi)的加(jia)熱(re)工(gong)(gong)(gong)(gong)藝及熱(re)處理(li)工(gong)(gong)(gong)(gong)藝可(ke)按(an)表(biao)15-16。2.不銹鋼三通應(ying)保證兩側(ce)的增(zeng)厚一致，肩(jian)部(bu)圓角(jiao)過渡部(bu)分的壁(bi)厚應(ying)保證大于(yu)(yu)(yu)或等于(yu)(yu)(yu)...
化(hua)工鋼(gang)(gang)制(zhi)無縫(feng)對焊(han)(han)管(guan)件(jian)是(shi)以(yi)碳鋼(gang)(gang)、低(di)合金鋼(gang)(gang)材(cai)料或無縫(feng)鋼(gang)(gang)管(guan)制(zhi)造的(de)無縫(feng)管(guan)件(jian)，管(guan)件(jian)與(yu)管(guan)子的(de)連接采(cai)用(yong)對焊(han)(han)式。不銹鋼(gang)(gang)管(guan)件(jian)的(de)品(pin)種包括(kuo)三通（等(deng)徑(jing)與(yu)異徑(jing)）、90°彎頭（長半徑(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(zhi)和(he)英制(zhi)兩個系列。此(ci)種管(guan)件(jian)主要用(yong)于(yu)化(hua)工及(ji)石油(you)化(hua)工企...
化工鋼制(zhi)無縫不銹鋼對焊管件結構(gou)型(xing)式(shi)與尺(chi)寸見下表(biao)一、管件 1.三(san)通 三(san)通型(xing)式(shi)見圖15-1，公制(zhi)三(san)通尺(chi)寸見表(biao)15-1；英制(zhi)三(san)通尺(chi)寸見表(biao)15-2。 a.短(duan)半徑(jing)彎頭 短(duan)半徑(jing)彎頭型(xing)式(shi)見圖15-2，公制(zhi)三(san)通尺(chi)寸見表(biao)15-3；英制(zhi)三(san)通...
化(hua)(hua)工(gong)鋼(gang)(gang)制(zhi)無縫(feng)對焊管(guan)(guan)件是以碳鋼(gang)(gang)、低合金鋼(gang)(gang)材料(liao)或(huo)無縫(feng)鋼(gang)(gang)管(guan)(guan)制(zhi)造(zao)的(de)無縫(feng)管(guan)(guan)件，管(guan)(guan)件與管(guan)(guan)子的(de)連接采用對焊式。管(guan)(guan)件的(de)品(pin)種包(bao)括三通(tong)（等徑(jing)(jing)與異(yi)徑(jing)(jing)）、90°彎頭(tou)(tou)（長(chang)半徑(jing)(jing)與短半徑(jing)(jing)）、異(yi)徑(jing)(jing)管(guan)(guan)或(huo)異(yi)徑(jing)(jing)接頭(tou)(tou)（同心(xin)與偏心(xin)）和管(guan)(guan)帽4種，尺(chi)寸分(fen)公制(zhi)和英(ying)制(zhi)兩個系列(lie)。此種管(guan)(guan)件主要用于化(hua)(hua)工(gong)及石油化(hua)(hua)工(gong)企業。1...
1.電站彎(wan)(wan)管標記(ji) a.標記(ji)方法 對于外(wai)徑(jing)管，電站彎(wan)(wan)管標記(ji)方法如下： b.標記(ji)示(shi)例 外(wai)徑(jing)OD為(wei)325mm，壁厚S為(wei)30mm，鋼號(hao)為(wei)12CrlMoV，彎(wan)(wan)曲半徑(jing)R為(wei)1300mm，彎(wan)(wan)曲角度0為(wei)90°的彎(wan)(wan)管表(biao)示(shi)為(wei)：OD32...
a.不銹(xiu)鋼彎管(guan)表(biao)面(mian)不應(ying)有(you)(you)裂(lie)紋、折(zhe)疊(die)、重(zhong)皮(pi)、凹陷、尖銳劃痕等缺陷。表(biao)面(mian)以現(xian)裂(lie)紋、重(zhong)皮(pi)等缺陷，應(ying)逐步修磨直(zhi)至(zhi)缺陷完全消除，修磨后(hou)的(de)實(shi)(shi)際壁厚(hou)應(ying)符(fu)合14.3.2.6c條要求。b.不銹(xiu)鋼彎管(guan)不應(ying)有(you)(you)過(guo)燒組織，不應(ying)出現(xian)晶間裂(lie)紋。c. 不銹(xiu)鋼彎管(guan)任(ren)何一點的(de)實(shi)(shi)測壁厚(hou)不應(ying)小于管(guan)系直(zhi)管(guan)...
電(dian)站(zhan)用不銹鋼(gang)彎(wan)(wan)管(guan)(guan)是用規定(ding)(ding)壁厚(hou)的直管(guan)(guan)，在規定(ding)(ding)加熱(re)(re)溫度(du)條(tiao)件(jian)下，按一定(ding)(ding)的彎(wan)(wan)曲半徑熱(re)(re)彎(wan)(wan)成形的一種不銹鋼(gang)彎(wan)(wan)管(guan)(guan)，主要(yao)用于(yu)電(dian)站(zhan)主蒸(zheng)汽(qi)、再熱(re)(re)蒸(zheng)汽(qi)、主給水(shui)管(guan)(guan)道(dao)及一般鋼(gang)制(zhi)汽(qi)水(shui)管(guan)(guan)道(dao)。 a.公(gong)稱壁厚(hou)大于(yu)19.0mm的碳(tan)鋼(gang)管(guan)(guan)，若彎(wan)(wan)制(zhi)溫度(du)低于(yu)900℃，彎(wan)(wan)后應對(dui)彎(wan)(wan)管(guan)(guan)進行回火熱(re)(re)處理。&...
