NEWS
1.制(zhi)造對焊管件(jian)的原材料(liao)為鋼(gang)板，常用(yong)(yong)材料(liao)牌號及相關標(biao)準見表16-8。根(gen)據用(yong)(yong)戶(hu)要(yao)求，管件(jian)也可(ke)采用(yong)(yong)非表列的其他(ta)材料(liao)制(zhi)造。2.制(zhi)造對焊管件(jian)的鋼(gang)板必(bi)須有質量(liang)合(he)格(ge)證(zheng)明書，并應根(gen)據有關標(biao)準規范要(yao)求做化學分(fen)析和機械性能的復驗(yan)，確認(ren)合(he)格(ge)后方可(ke)使(shi)用(yong)(yong)。3.鋼(gang)板兩面不得有裂縫、折(zhe)疊、軋(ya)折(zhe)、離層、...
化工鋼(gang)(gang)制有(you)縫(feng)對焊管(guan)件(jian)是用碳鋼(gang)(gang)、低合金鋼(gang)(gang)和奧氏(shi)體不銹鋼(gang)(gang)鋼(gang)(gang)板制造的(de)(de)(de)具(ju)有(you)縱向焊縫(feng)的(de)(de)(de)管(guan)件(jian)，其品種(zhong)包括三(san)(san)通(tong)（等徑(jing)(jing)(jing)(jing)和異(yi)徑(jing)(jing)(jing)(jing)）、彎頭(tou)（短(duan)半徑(jing)(jing)(jing)(jing)90°和長半徑(jing)(jing)(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)(jing)(jing)管(guan)或異(yi)徑(jing)(jing)(jing)(jing)接(jie)(jie)頭(tou)（同心和偏(pian)心）三(san)(san)種(zhong)，與接(jie)(jie)管(guan)連接(jie)(jie)的(de)(de)(de)方式為(wei)對焊連接(jie)(jie)，端部外徑(jing)(jing)(jing)(jing)分為(wei)Ⅰ系(xi)列(lie)(lie)和Ⅱ系(xi)列(lie)(lie)，是專(zhuan)供化工行(xing)業大型管(guan)道使(shi)用的(de)(de)(de)一種(zhong)...
專用(yong)管件系指(zhi)在特(te)定使用(yong)場合使用(yong)的管件，其使用(yong)范圍(wei)較通(tong)(tong)用(yong)管件窄一(yi)些(xie)。本(ben)篇(pian)所介紹的專用(yong)管件包括不銹鋼(gang)(gang)卡壓式(shi)管件；電站鋼(gang)(gang)制(zhi)對焊管件；電站彎管；化工(gong)(gong)鋼(gang)(gang)制(zhi)無縫(feng)對焊管件；化工(gong)(gong)鋼(gang)(gang)制(zhi)有縫(feng)對焊管件；化工(gong)(gong)鋼(gang)(gang)制(zhi)承插焊管件及襯塑(su)（PP、PE、PVC）鋼(gang)(gang)管和管件等(deng)7部分(fen)內容。與通(tong)(tong)用(yong)管件相比，...
化工(gong)鋼(gang)制(zhi)(zhi)有縫對焊管件是用(yong)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)具有縱向焊縫的(de)管件，其(qi)品(pin)種包括三通（等徑(jing)和(he)異(yi)徑(jing)）、彎頭(tou)（短半徑(jing)90°和(he)長(chang)半徑(jing)90°、45°）、異(yi)徑(jing)管或異(yi)徑(jing)接頭(tou)（同心和(he)偏心）三種，與接管連接的(de)方(fang)式為對焊連接，端部(bu)外徑(jing)分為Ⅰ系(xi)列(lie)和(he)Ⅱ系(xi)列(lie)，是專(zhuan)供化工(gong)行(xing)業大型...
化工(gong)鋼(gang)制無縫對焊管(guan)(guan)件(jian)(jian)是以碳鋼(gang)、低(di)合金鋼(gang)材料或(huo)無縫鋼(gang)管(guan)(guan)制造(zao)的(de)無縫管(guan)(guan)件(jian)(jian)，管(guan)(guan)件(jian)(jian)與管(guan)(guan)子的(de)連(lian)接采用(yong)對焊式(shi)。管(guan)(guan)件(jian)(jian)的(de)品(pin)種(zhong)(zhong)包括三通（等徑(jing)與異(yi)(yi)徑(jing)）、90°彎頭(tou)（長(chang)半徑(jing)與短半徑(jing)）、異(yi)(yi)徑(jing)管(guan)(guan)或(huo)異(yi)(yi)徑(jing)接頭(tou)（同(tong)心(xin)與偏(pian)心(xin)）和管(guan)(guan)帽4種(zhong)(zhong)，尺寸分公制和英(ying)制兩個系列。此(ci)種(zhong)(zhong)管(guan)(guan)件(jian)(jian)主要用(yong)于(yu)化工(gong)及石油(you)化工(gong)企業。1...
1.化工(gong)(gong)(gong)(gong)鋼(gang)(gang)(gang)制無縫不銹(xiu)(xiu)鋼(gang)(gang)(gang)對焊(han)管件若采用(yong)冷加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)，成(cheng)型后須進行消除應力的(de)熱(re)處(chu)理。若采用(yong)熱(re)加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)，當其(qi)終(zhong)壓溫度低(di)于表15-16所(suo)列終(zhong)壓溫度時，也必(bi)須進行熱(re)處(chu)理，毛坯的(de)加(jia)熱(re)工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)及熱(re)處(chu)理工(gong)(gong)(gong)(gong)藝(yi)(yi)(yi)可按表15-16。2.不銹(xiu)(xiu)鋼(gang)(gang)(gang)三通應保(bao)證兩(liang)側的(de)增(zeng)厚一致，肩部圓角過渡部分的(de)壁(bi)厚應保(bao)證大于或等于...
化(hua)(hua)工(gong)鋼制(zhi)(zhi)無(wu)縫對焊管(guan)(guan)(guan)(guan)件(jian)(jian)是(shi)以碳(tan)鋼、低合金(jin)鋼材料或(huo)無(wu)縫鋼管(guan)(guan)(guan)(guan)制(zhi)(zhi)造的無(wu)縫管(guan)(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)(guan)件(jian)(jian)與(yu)(yu)管(guan)(guan)(guan)(guan)子的連接采用對焊式。不(bu)銹鋼管(guan)(guan)(guan)(guan)件(jian)(jian)的品種包括三通（等徑與(yu)(yu)異徑）、90°彎(wan)頭（長半(ban)徑與(yu)(yu)短半(ban)徑）、異徑管(guan)(guan)(guan)(guan)或(huo)異徑接頭（同心與(yu)(yu)偏(pian)心）和管(guan)(guan)(guan)(guan)帽4種，尺寸分(fen)公(gong)制(zhi)(zhi)和英制(zhi)(zhi)兩個系列。此種管(guan)(guan)(guan)(guan)件(jian)(jian)主要用于(yu)化(hua)(hua)工(gong)及石(shi)油化(hua)(hua)工(gong)企...
化工鋼(gang)制無(wu)縫不銹(xiu)鋼(gang)對焊管件(jian)(jian)結(jie)構型(xing)式(shi)與尺(chi)(chi)寸(cun)(cun)見下(xia)表(biao)一(yi)、管件(jian)(jian) 1.三(san)通 三(san)通型(xing)式(shi)見圖(tu)15-1，公制三(san)通尺(chi)(chi)寸(cun)(cun)見表(biao)15-1；英(ying)制三(san)通尺(chi)(chi)寸(cun)(cun)見表(biao)15-2。 a.短半(ban)(ban)徑(jing)彎(wan)頭(tou) 短半(ban)(ban)徑(jing)彎(wan)頭(tou)型(xing)式(shi)見圖(tu)15-2，公制三(san)通尺(chi)(chi)寸(cun)(cun)見表(biao)15-3；英(ying)制三(san)通...
化(hua)工(gong)鋼(gang)(gang)制(zhi)無(wu)縫(feng)對焊管(guan)件(jian)(jian)(jian)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(zhi)造的無(wu)縫(feng)管(guan)件(jian)(jian)(jian)，管(guan)件(jian)(jian)(jian)與(yu)管(guan)子的連接采用(yong)對焊式。管(guan)件(jian)(jian)(jian)的品種包括三通（等(deng)徑(jing)(jing)(jing)與(yu)異徑(jing)(jing)(jing)）、90°彎頭（長半徑(jing)(jing)(jing)與(yu)短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管(guan)或異徑(jing)(jing)(jing)接頭（同(tong)心與(yu)偏心）和(he)管(guan)帽4種，尺寸分公(gong)制(zhi)和(he)英制(zhi)兩個系列。此種管(guan)件(jian)(jian)(jian)主要用(yong)于化(hua)工(gong)及石油化(hua)工(gong)企業。1...
1.電站彎(wan)管(guan)標(biao)(biao)記(ji)(ji) a.標(biao)(biao)記(ji)(ji)方法 對于外(wai)徑(jing)管(guan)，電站彎(wan)管(guan)標(biao)(biao)記(ji)(ji)方法如(ru)下： b.標(biao)(biao)記(ji)(ji)示例(li) 外(wai)徑(jing)OD為(wei)325mm，壁(bi)厚(hou)S為(wei)30mm，鋼(gang)號為(wei)12CrlMoV，彎(wan)曲半徑(jing)R為(wei)1300mm，彎(wan)曲角度0為(wei)90°的(de)彎(wan)管(guan)表示為(wei)：OD32...
a.不銹(xiu)鋼彎管(guan)(guan)(guan)表(biao)面不應(ying)(ying)有(you)裂(lie)紋(wen)、折疊、重(zhong)皮、凹(ao)陷(xian)、尖銳劃痕等缺陷(xian)。表(biao)面以現(xian)裂(lie)紋(wen)、重(zhong)皮等缺陷(xian)，應(ying)(ying)逐步修磨(mo)(mo)直(zhi)至缺陷(xian)完全消除，修磨(mo)(mo)后的實(shi)際壁(bi)厚應(ying)(ying)符合14.3.2.6c條要(yao)求(qiu)。b.不銹(xiu)鋼彎管(guan)(guan)(guan)不應(ying)(ying)有(you)過燒組(zu)織，不應(ying)(ying)出現(xian)晶間(jian)裂(lie)紋(wen)。c. 不銹(xiu)鋼彎管(guan)(guan)(guan)任(ren)何(he)一點的實(shi)測(ce)壁(bi)厚不應(ying)(ying)小于(yu)管(guan)(guan)(guan)系(xi)直(zhi)管(guan)(guan)(guan)...
電站用(yong)不銹鋼(gang)彎(wan)管(guan)(guan)(guan)是(shi)用(yong)規(gui)(gui)定(ding)壁厚(hou)的(de)直管(guan)(guan)(guan)，在規(gui)(gui)定(ding)加熱溫度(du)條件下，按(an)一定(ding)的(de)彎(wan)曲半徑熱彎(wan)成形(xing)的(de)一種不銹鋼(gang)彎(wan)管(guan)(guan)(guan)，主(zhu)(zhu)要(yao)用(yong)于電站主(zhu)(zhu)蒸汽(qi)(qi)、再熱蒸汽(qi)(qi)、主(zhu)(zhu)給(gei)水管(guan)(guan)(guan)道及一般鋼(gang)制汽(qi)(qi)水管(guan)(guan)(guan)道。 a.公(gong)稱(cheng)壁厚(hou)大(da)于19.0mm的(de)碳鋼(gang)管(guan)(guan)(guan)，若(ruo)彎(wan)制溫度(du)低于900℃，彎(wan)后(hou)應(ying)對彎(wan)管(guan)(guan)(guan)進行(xing)回(hui)火熱處理。&...
