NEWS
1.制(zhi)造對焊管(guan)件(jian)的(de)原材(cai)料為(wei)鋼(gang)(gang)板，常用(yong)材(cai)料牌號(hao)及相關標準(zhun)見表16-8。根據(ju)用(yong)戶要(yao)求，管(guan)件(jian)也可采用(yong)非表列(lie)的(de)其他材(cai)料制(zhi)造。2.制(zhi)造對焊管(guan)件(jian)的(de)鋼(gang)(gang)板必須有(you)質量合格證明書，并(bing)應根據(ju)有(you)關標準(zhun)規(gui)范要(yao)求做化學分(fen)析和機械性能的(de)復(fu)驗，確認合格后方可使用(yong)。3.鋼(gang)(gang)板兩面不得有(you)裂縫、折疊、軋折、離(li)層、...
化工鋼制(zhi)(zhi)有(you)縫(feng)對(dui)焊(han)管(guan)(guan)件是用碳鋼、低合(he)金(jin)鋼和奧(ao)氏體不銹鋼鋼板制(zhi)(zhi)造的(de)具有(you)縱向焊(han)縫(feng)的(de)管(guan)(guan)件，其品種(zhong)包括三通（等徑(jing)(jing)(jing)(jing)和異(yi)徑(jing)(jing)(jing)(jing)）、彎頭（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)(guan)或異(yi)徑(jing)(jing)(jing)(jing)接頭（同心(xin)和偏心(xin)）三種(zhong)，與接管(guan)(guan)連接的(de)方式為對(dui)焊(han)連接，端部(bu)外徑(jing)(jing)(jing)(jing)分為Ⅰ系列和Ⅱ系列，是專供化工行業大型管(guan)(guan)道使用的(de)一種(zhong)...
專用(yong)管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)系指在特定使(shi)(shi)用(yong)場合使(shi)(shi)用(yong)的(de)管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)，其(qi)使(shi)(shi)用(yong)范圍較(jiao)通用(yong)管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)窄一些。本(ben)篇所介紹的(de)專用(yong)管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)包括不銹鋼卡(ka)壓式管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)；電站鋼制(zhi)對焊管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)；電站彎管(guan)(guan)；化(hua)工(gong)鋼制(zhi)無縫(feng)對焊管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)；化(hua)工(gong)鋼制(zhi)有縫(feng)對焊管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)；化(hua)工(gong)鋼制(zhi)承插(cha)焊管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼管(guan)(guan)和管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)等7部分內容(rong)。與(yu)通用(yong)管(guan)(guan)件(jian)(jian)(jian)(jian)(jian)相比，...
化工(gong)鋼(gang)制有縫對(dui)焊管(guan)(guan)件是用碳鋼(gang)、低合金鋼(gang)和(he)奧氏體不(bu)銹(xiu)鋼(gang)鋼(gang)板制造的(de)具有縱(zong)向焊縫的(de)管(guan)(guan)件，其品種(zhong)包括三通（等徑(jing)和(he)異(yi)徑(jing)）、彎(wan)頭(tou)(tou)（短(duan)半(ban)徑(jing)90°和(he)長半(ban)徑(jing)90°、45°）、異(yi)徑(jing)管(guan)(guan)或異(yi)徑(jing)接頭(tou)(tou)（同心(xin)和(he)偏心(xin)）三種(zhong)，與接管(guan)(guan)連接的(de)方式為(wei)對(dui)焊連接，端部外徑(jing)分(fen)為(wei)Ⅰ系列和(he)Ⅱ系列，是專供化工(gong)行業大型(xing)...
化(hua)工(gong)鋼(gang)(gang)制(zhi)無縫對焊管件(jian)是以碳鋼(gang)(gang)、低合金(jin)鋼(gang)(gang)材(cai)料(liao)或(huo)無縫鋼(gang)(gang)管制(zhi)造的無縫管件(jian)，管件(jian)與(yu)(yu)管子的連接采(cai)用對焊式。管件(jian)的品種(zhong)包括三通（等徑(jing)與(yu)(yu)異(yi)(yi)徑(jing)）、90°彎頭（長(chang)半徑(jing)與(yu)(yu)短半徑(jing)）、異(yi)(yi)徑(jing)管或(huo)異(yi)(yi)徑(jing)接頭（同心與(yu)(yu)偏心）和管帽4種(zhong)，尺寸分公制(zhi)和英制(zhi)兩個系(xi)列。此種(zhong)管件(jian)主(zhu)要(yao)用于化(hua)工(gong)及石(shi)油(you)化(hua)工(gong)企(qi)業。1...
1.化(hua)工(gong)(gong)鋼(gang)(gang)制無縫不銹鋼(gang)(gang)對(dui)焊管件若(ruo)采用冷(leng)加(jia)工(gong)(gong)工(gong)(gong)藝(yi)，成型后須(xu)進行消除應(ying)力(li)的熱處理(li)。若(ruo)采用熱加(jia)工(gong)(gong)工(gong)(gong)藝(yi)，當(dang)其終壓溫度(du)低于(yu)表(biao)15-16所(suo)列終壓溫度(du)時，也必須(xu)進行熱處理(li)，毛(mao)坯的加(jia)熱工(gong)(gong)藝(yi)及熱處理(li)工(gong)(gong)藝(yi)可按表(biao)15-16。2.不銹鋼(gang)(gang)三(san)通應(ying)保(bao)證兩側的增厚一致(zhi)，肩(jian)部(bu)圓角過渡部(bu)分的壁厚應(ying)保(bao)證大(da)于(yu)或等于(yu)...
化工(gong)鋼(gang)制(zhi)無(wu)縫(feng)對(dui)焊管(guan)件是以碳鋼(gang)、低合金鋼(gang)材(cai)料或(huo)無(wu)縫(feng)鋼(gang)管(guan)制(zhi)造的無(wu)縫(feng)管(guan)件，管(guan)件與(yu)(yu)管(guan)子的連接采用(yong)對(dui)焊式。不銹(xiu)鋼(gang)管(guan)件的品種包括三通（等徑(jing)(jing)與(yu)(yu)異(yi)徑(jing)(jing)）、90°彎頭（長半(ban)徑(jing)(jing)與(yu)(yu)短(duan)半(ban)徑(jing)(jing)）、異(yi)徑(jing)(jing)管(guan)或(huo)異(yi)徑(jing)(jing)接頭（同心(xin)(xin)與(yu)(yu)偏心(xin)(xin)）和管(guan)帽4種，尺寸(cun)分(fen)公制(zhi)和英制(zhi)兩個系(xi)列。此種管(guan)件主(zhu)要用(yong)于化工(gong)及(ji)石油化工(gong)企...
化工鋼(gang)制無(wu)縫不銹鋼(gang)對焊管件結構(gou)型式與(yu)尺(chi)(chi)寸見下表一、管件 1.三(san)(san)通(tong) 三(san)(san)通(tong)型式見圖15-1，公制三(san)(san)通(tong)尺(chi)(chi)寸見表15-1；英制三(san)(san)通(tong)尺(chi)(chi)寸見表15-2。 a.短半徑彎頭(tou) 短半徑彎頭(tou)型式見圖15-2，公制三(san)(san)通(tong)尺(chi)(chi)寸見表15-3；英制三(san)(san)通(tong)...
化(hua)工(gong)鋼(gang)制無(wu)縫對焊(han)管(guan)(guan)(guan)(guan)件(jian)是以(yi)碳鋼(gang)、低(di)合金鋼(gang)材(cai)料或無(wu)縫鋼(gang)管(guan)(guan)(guan)(guan)制造的(de)無(wu)縫管(guan)(guan)(guan)(guan)件(jian)，管(guan)(guan)(guan)(guan)件(jian)與管(guan)(guan)(guan)(guan)子的(de)連接采用對焊(han)式(shi)。管(guan)(guan)(guan)(guan)件(jian)的(de)品種(zhong)包括三通（等徑與異徑）、90°彎(wan)頭（長半徑與短(duan)半徑）、異徑管(guan)(guan)(guan)(guan)或異徑接頭（同(tong)心(xin)與偏心(xin)）和管(guan)(guan)(guan)(guan)帽4種(zhong)，尺寸分(fen)公制和英(ying)制兩個系(xi)列。此種(zhong)管(guan)(guan)(guan)(guan)件(jian)主要用于(yu)化(hua)工(gong)及(ji)石(shi)油化(hua)工(gong)企業。1...
1.電(dian)站(zhan)彎(wan)(wan)(wan)管標(biao)(biao)記(ji) a.標(biao)(biao)記(ji)方(fang)(fang)法 對于外(wai)徑管，電(dian)站(zhan)彎(wan)(wan)(wan)管標(biao)(biao)記(ji)方(fang)(fang)法如下： b.標(biao)(biao)記(ji)示例 外(wai)徑OD為325mm，壁厚S為30mm，鋼號為12CrlMoV，彎(wan)(wan)(wan)曲(qu)半徑R為1300mm，彎(wan)(wan)(wan)曲(qu)角度0為90°的彎(wan)(wan)(wan)管表示為：OD32...
a.不(bu)(bu)銹鋼彎(wan)管(guan)表面(mian)不(bu)(bu)應(ying)有裂紋、折疊、重(zhong)皮、凹陷(xian)、尖(jian)銳劃痕等缺陷(xian)。表面(mian)以現(xian)(xian)裂紋、重(zhong)皮等缺陷(xian)，應(ying)逐(zhu)步修(xiu)(xiu)磨(mo)直至缺陷(xian)完全消除，修(xiu)(xiu)磨(mo)后(hou)的(de)實(shi)際壁(bi)厚應(ying)符合14.3.2.6c條要(yao)求(qiu)。b.不(bu)(bu)銹鋼彎(wan)管(guan)不(bu)(bu)應(ying)有過燒組(zu)織(zhi)，不(bu)(bu)應(ying)出(chu)現(xian)(xian)晶間(jian)裂紋。c. 不(bu)(bu)銹鋼彎(wan)管(guan)任何一點的(de)實(shi)測壁(bi)厚不(bu)(bu)應(ying)小(xiao)于管(guan)系(xi)直管(guan)...
電(dian)(dian)站(zhan)用(yong)不(bu)銹鋼彎(wan)管(guan)是(shi)用(yong)規定(ding)壁(bi)厚的直管(guan)，在規定(ding)加熱溫度條(tiao)件下(xia)，按一定(ding)的彎(wan)曲半徑熱彎(wan)成形的一種不(bu)銹鋼彎(wan)管(guan)，主(zhu)要用(yong)于電(dian)(dian)站(zhan)主(zhu)蒸汽、再熱蒸汽、主(zhu)給水管(guan)道及(ji)一般鋼制汽水管(guan)道。 a.公(gong)稱壁(bi)厚大于19.0mm的碳鋼管(guan)，若彎(wan)制溫度低(di)于900℃，彎(wan)后應(ying)對彎(wan)管(guan)進(jin)行回火熱處理。&...
