NEWS
1.制(zhi)造對(dui)焊(han)管(guan)件的(de)(de)原材料為鋼(gang)板(ban)，常用材料牌(pai)號及相關(guan)標準見(jian)表16-8。根據用戶要(yao)求(qiu)，管(guan)件也可(ke)采用非(fei)表列的(de)(de)其他(ta)材料制(zhi)造。2.制(zhi)造對(dui)焊(han)管(guan)件的(de)(de)鋼(gang)板(ban)必須有質(zhi)量合(he)格(ge)證明書(shu)，并應根據有關(guan)標準規范要(yao)求(qiu)做化(hua)學分(fen)析和(he)機械(xie)性能的(de)(de)復(fu)驗(yan)，確認合(he)格(ge)后方可(ke)使用。3.鋼(gang)板(ban)兩面不得(de)有裂縫、折(zhe)(zhe)疊(die)、軋折(zhe)(zhe)、離層、...
化(hua)工鋼制有縫對焊管(guan)件是(shi)用碳(tan)鋼、低合(he)金鋼和(he)奧氏(shi)體不(bu)銹鋼鋼板制造(zao)的(de)具有縱向焊縫的(de)管(guan)件，其品種包括(kuo)三(san)通（等徑(jing)(jing)和(he)異(yi)徑(jing)(jing)）、彎頭（短半徑(jing)(jing)90°和(he)長半徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管(guan)或異(yi)徑(jing)(jing)接(jie)頭（同心和(he)偏心）三(san)種，與(yu)接(jie)管(guan)連接(jie)的(de)方式為(wei)(wei)對焊連接(jie)，端部外徑(jing)(jing)分(fen)為(wei)(wei)Ⅰ系列和(he)Ⅱ系列，是(shi)專供化(hua)工行(xing)業大型管(guan)道使用的(de)一(yi)種...
專用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)系指在特(te)定使(shi)(shi)用(yong)(yong)場合使(shi)(shi)用(yong)(yong)的管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)，其使(shi)(shi)用(yong)(yong)范圍(wei)較(jiao)通用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)窄一些。本篇所介紹的專用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)包括不銹(xiu)鋼(gang)(gang)卡壓式管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；電(dian)站鋼(gang)(gang)制(zhi)對(dui)(dui)(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；電(dian)站彎(wan)管(guan)(guan)(guan)；化工鋼(gang)(gang)制(zhi)無縫(feng)對(dui)(dui)(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；化工鋼(gang)(gang)制(zhi)有縫(feng)對(dui)(dui)(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)；化工鋼(gang)(gang)制(zhi)承插焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)及襯塑(su)（PP、PE、PVC）鋼(gang)(gang)管(guan)(guan)(guan)和管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)等7部分內容。與通用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)相比(bi)，...
化工(gong)(gong)鋼(gang)制(zhi)有(you)縫對焊(han)管(guan)(guan)(guan)(guan)件(jian)是用碳鋼(gang)、低(di)合金鋼(gang)和(he)奧氏體(ti)不銹鋼(gang)鋼(gang)板制(zhi)造(zao)的具有(you)縱向焊(han)縫的管(guan)(guan)(guan)(guan)件(jian)，其品種包括三(san)通（等徑(jing)(jing)和(he)異(yi)徑(jing)(jing)）、彎頭（短半徑(jing)(jing)90°和(he)長半徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管(guan)(guan)(guan)(guan)或異(yi)徑(jing)(jing)接(jie)(jie)頭（同(tong)心和(he)偏心）三(san)種，與接(jie)(jie)管(guan)(guan)(guan)(guan)連接(jie)(jie)的方式為對焊(han)連接(jie)(jie)，端部外徑(jing)(jing)分為Ⅰ系列(lie)和(he)Ⅱ系列(lie)，是專供化工(gong)(gong)行業大型(xing)...
化工鋼制(zhi)無縫對焊管(guan)(guan)(guan)件是以碳鋼、低合金鋼材料或(huo)無縫鋼管(guan)(guan)(guan)制(zhi)造(zao)的(de)無縫管(guan)(guan)(guan)件，管(guan)(guan)(guan)件與管(guan)(guan)(guan)子的(de)連(lian)接采用對焊式(shi)。管(guan)(guan)(guan)件的(de)品種包括三通（等徑與異(yi)(yi)徑）、90°彎頭（長半徑與短(duan)半徑）、異(yi)(yi)徑管(guan)(guan)(guan)或(huo)異(yi)(yi)徑接頭（同(tong)心與偏心）和管(guan)(guan)(guan)帽4種，尺寸分公(gong)制(zhi)和英制(zhi)兩個系列。此種管(guan)(guan)(guan)件主(zhu)要用于化工及(ji)石油化工企業(ye)。1...
1.化工(gong)鋼(gang)制無縫不銹鋼(gang)對焊(han)管件若采(cai)用冷加(jia)工(gong)工(gong)藝(yi)，成型后須(xu)進行消除應(ying)(ying)力(li)的(de)熱(re)處理(li)。若采(cai)用熱(re)加(jia)工(gong)工(gong)藝(yi)，當其(qi)終壓溫(wen)度(du)低于表15-16所列終壓溫(wen)度(du)時，也必須(xu)進行熱(re)處理(li)，毛坯的(de)加(jia)熱(re)工(gong)藝(yi)及熱(re)處理(li)工(gong)藝(yi)可(ke)按表15-16。2.不銹鋼(gang)三通應(ying)(ying)保證兩側的(de)增厚一致，肩(jian)部(bu)圓角過渡部(bu)分的(de)壁厚應(ying)(ying)保證大于或等于...
化(hua)(hua)工鋼制(zhi)(zhi)無縫對焊管(guan)(guan)件是以(yi)碳鋼、低合金鋼材料或無縫鋼管(guan)(guan)制(zhi)(zhi)造的無縫管(guan)(guan)件，管(guan)(guan)件與(yu)管(guan)(guan)子的連接(jie)采(cai)用對焊式(shi)。不銹鋼管(guan)(guan)件的品種(zhong)包括三通（等(deng)徑(jing)與(yu)異徑(jing)）、90°彎頭(tou)（長半(ban)徑(jing)與(yu)短半(ban)徑(jing)）、異徑(jing)管(guan)(guan)或異徑(jing)接(jie)頭(tou)（同(tong)心與(yu)偏心）和管(guan)(guan)帽4種(zhong)，尺(chi)寸(cun)分公(gong)制(zhi)(zhi)和英制(zhi)(zhi)兩個系列(lie)。此種(zhong)管(guan)(guan)件主要用于化(hua)(hua)工及石(shi)油化(hua)(hua)工企...
化(hua)工鋼制無(wu)縫不(bu)銹鋼對焊(han)管件(jian)結(jie)構型式與尺(chi)寸(cun)見(jian)下表一、管件(jian) 1.三(san)(san)通(tong)(tong) 三(san)(san)通(tong)(tong)型式見(jian)圖15-1，公(gong)制三(san)(san)通(tong)(tong)尺(chi)寸(cun)見(jian)表15-1；英制三(san)(san)通(tong)(tong)尺(chi)寸(cun)見(jian)表15-2。 a.短(duan)半徑(jing)彎(wan)(wan)頭(tou)(tou) 短(duan)半徑(jing)彎(wan)(wan)頭(tou)(tou)型式見(jian)圖15-2，公(gong)制三(san)(san)通(tong)(tong)尺(chi)寸(cun)見(jian)表15-3；英制三(san)(san)通(tong)(tong)...
化工鋼制(zhi)無(wu)(wu)縫(feng)對焊(han)管(guan)(guan)件(jian)是以(yi)碳鋼、低合金鋼材料或無(wu)(wu)縫(feng)鋼管(guan)(guan)制(zhi)造的無(wu)(wu)縫(feng)管(guan)(guan)件(jian)，管(guan)(guan)件(jian)與(yu)(yu)管(guan)(guan)子的連接(jie)采用(yong)對焊(han)式。管(guan)(guan)件(jian)的品種(zhong)(zhong)包括三通（等徑(jing)與(yu)(yu)異徑(jing)）、90°彎頭(tou)（長(chang)半(ban)徑(jing)與(yu)(yu)短半(ban)徑(jing)）、異徑(jing)管(guan)(guan)或異徑(jing)接(jie)頭(tou)（同心(xin)與(yu)(yu)偏心(xin)）和(he)管(guan)(guan)帽4種(zhong)(zhong)，尺寸分公制(zhi)和(he)英制(zhi)兩(liang)個系列。此(ci)種(zhong)(zhong)管(guan)(guan)件(jian)主要用(yong)于化工及石油化工企業。1...
1.電站彎管標(biao)記(ji)(ji) a.標(biao)記(ji)(ji)方法 對于外徑(jing)管，電站彎管標(biao)記(ji)(ji)方法如下： b.標(biao)記(ji)(ji)示例 外徑(jing)OD為(wei)325mm，壁厚S為(wei)30mm，鋼號為(wei)12CrlMoV，彎曲半徑(jing)R為(wei)1300mm，彎曲角度0為(wei)90°的(de)彎管表示為(wei)：OD32...
a.不(bu)銹鋼彎(wan)管表(biao)面不(bu)應(ying)有(you)裂紋(wen)、折疊、重皮、凹(ao)陷(xian)、尖銳劃痕等缺(que)陷(xian)。表(biao)面以現裂紋(wen)、重皮等缺(que)陷(xian)，應(ying)逐步修磨直至缺(que)陷(xian)完全(quan)消除，修磨后的實(shi)際壁厚應(ying)符合14.3.2.6c條要求(qiu)。b.不(bu)銹鋼彎(wan)管不(bu)應(ying)有(you)過燒組織，不(bu)應(ying)出現晶(jing)間(jian)裂紋(wen)。c. 不(bu)銹鋼彎(wan)管任何一點的實(shi)測壁厚不(bu)應(ying)小于(yu)管系直管...
電站用(yong)不銹(xiu)鋼彎管(guan)是用(yong)規定壁(bi)厚(hou)的(de)(de)(de)直(zhi)管(guan)，在規定加熱(re)溫(wen)度條件下，按一定的(de)(de)(de)彎曲半徑熱(re)彎成(cheng)形的(de)(de)(de)一種不銹(xiu)鋼彎管(guan)，主要(yao)用(yong)于(yu)電站主蒸汽(qi)、再熱(re)蒸汽(qi)、主給水管(guan)道及一般鋼制(zhi)汽(qi)水管(guan)道。 a.公稱壁(bi)厚(hou)大于(yu)19.0mm的(de)(de)(de)碳(tan)鋼管(guan)，若彎制(zhi)溫(wen)度低于(yu)900℃，彎后(hou)應(ying)對彎管(guan)進行回(hui)火熱(re)處理(li)。&...
