NEWS
1.制造對焊管(guan)件的(de)原材(cai)料(liao)為鋼(gang)板，常(chang)用(yong)(yong)材(cai)料(liao)牌號及相關(guan)標準(zhun)見表(biao)16-8。根據用(yong)(yong)戶要(yao)求(qiu)(qiu)，管(guan)件也可采用(yong)(yong)非表(biao)列的(de)其(qi)他(ta)材(cai)料(liao)制造。2.制造對焊管(guan)件的(de)鋼(gang)板必須有(you)質(zhi)量(liang)合格證明書，并應(ying)根據有(you)關(guan)標準(zhun)規范要(yao)求(qiu)(qiu)做化學分(fen)析和機械性能的(de)復(fu)驗，確(que)認(ren)合格后(hou)方(fang)可使(shi)用(yong)(yong)。3.鋼(gang)板兩(liang)面(mian)不得有(you)裂縫、折(zhe)疊(die)、軋折(zhe)、離層、...
化工(gong)鋼(gang)制有縫(feng)對焊管件是用碳鋼(gang)、低合金鋼(gang)和(he)奧(ao)氏體(ti)不銹鋼(gang)鋼(gang)板制造的(de)具(ju)有縱向(xiang)焊縫(feng)的(de)管件，其品種(zhong)包括三通（等徑(jing)和(he)異(yi)徑(jing)）、彎頭（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（同心(xin)和(he)偏心(xin)）三種(zhong)，與接管連接的(de)方式為(wei)對焊連接，端部外徑(jing)分為(wei)Ⅰ系(xi)列和(he)Ⅱ系(xi)列，是專(zhuan)供化工(gong)行業大型管道(dao)使用的(de)一種(zhong)...
專用管(guan)(guan)件(jian)(jian)系(xi)指在特定(ding)使(shi)用場合(he)使(shi)用的管(guan)(guan)件(jian)(jian)，其使(shi)用范(fan)圍(wei)較(jiao)通用管(guan)(guan)件(jian)(jian)窄(zhai)一些。本篇所(suo)介紹的專用管(guan)(guan)件(jian)(jian)包括不銹鋼卡壓式管(guan)(guan)件(jian)(jian)；電站(zhan)鋼制對(dui)焊管(guan)(guan)件(jian)(jian)；電站(zhan)彎管(guan)(guan)；化工鋼制無縫對(dui)焊管(guan)(guan)件(jian)(jian)；化工鋼制有縫對(dui)焊管(guan)(guan)件(jian)(jian)；化工鋼制承插焊管(guan)(guan)件(jian)(jian)及襯塑（PP、PE、PVC）鋼管(guan)(guan)和管(guan)(guan)件(jian)(jian)等7部分內(nei)容。與通用管(guan)(guan)件(jian)(jian)相比，...
化工鋼(gang)(gang)制有縫對焊管(guan)件(jian)是用碳鋼(gang)(gang)、低(di)合金(jin)鋼(gang)(gang)和(he)奧(ao)氏體(ti)不銹鋼(gang)(gang)鋼(gang)(gang)板(ban)制造(zao)的具有縱向焊縫的管(guan)件(jian)，其品種包括三通(tong)（等徑和(he)異徑）、彎頭(tou)（短半徑90°和(he)長半徑90°、45°）、異徑管(guan)或異徑接(jie)頭(tou)（同心和(he)偏心）三種，與接(jie)管(guan)連(lian)接(jie)的方式為對焊連(lian)接(jie)，端(duan)部外(wai)徑分為Ⅰ系列和(he)Ⅱ系列，是專供(gong)化工行(xing)業大型...
化(hua)工(gong)鋼(gang)(gang)制(zhi)無(wu)縫對(dui)焊管(guan)(guan)(guan)件(jian)是以碳鋼(gang)(gang)、低合金鋼(gang)(gang)材料(liao)或無(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)制(zhi)造的無(wu)縫管(guan)(guan)(guan)件(jian)，管(guan)(guan)(guan)件(jian)與(yu)管(guan)(guan)(guan)子的連(lian)接(jie)采用對(dui)焊式。管(guan)(guan)(guan)件(jian)的品(pin)種包(bao)括三(san)通（等(deng)徑(jing)(jing)與(yu)異徑(jing)(jing)）、90°彎頭（長半徑(jing)(jing)與(yu)短半徑(jing)(jing)）、異徑(jing)(jing)管(guan)(guan)(guan)或異徑(jing)(jing)接(jie)頭（同心(xin)與(yu)偏心(xin)）和(he)管(guan)(guan)(guan)帽4種，尺(chi)寸分公制(zhi)和(he)英(ying)制(zhi)兩個系列(lie)。此(ci)種管(guan)(guan)(guan)件(jian)主(zhu)要用于化(hua)工(gong)及石油化(hua)工(gong)企業。1...
1.化工(gong)(gong)鋼制無縫不銹鋼對(dui)焊管(guan)件若采用冷加工(gong)(gong)工(gong)(gong)藝，成型后須(xu)進行消除應(ying)(ying)力的(de)(de)熱處理(li)。若采用熱加工(gong)(gong)工(gong)(gong)藝，當其(qi)終壓(ya)溫度(du)低于表15-16所(suo)列(lie)終壓(ya)溫度(du)時(shi)，也(ye)必(bi)須(xu)進行熱處理(li)，毛坯的(de)(de)加熱工(gong)(gong)藝及熱處理(li)工(gong)(gong)藝可按表15-16。2.不銹鋼三(san)通(tong)應(ying)(ying)保證兩側的(de)(de)增(zeng)厚一致，肩(jian)部(bu)圓角(jiao)過渡部(bu)分的(de)(de)壁厚應(ying)(ying)保證大于或等于...
化(hua)工鋼(gang)制(zhi)(zhi)無(wu)縫(feng)(feng)對焊管件(jian)是以碳鋼(gang)、低合金鋼(gang)材料或(huo)無(wu)縫(feng)(feng)鋼(gang)管制(zhi)(zhi)造的無(wu)縫(feng)(feng)管件(jian)，管件(jian)與(yu)(yu)管子(zi)的連接采用(yong)(yong)對焊式。不銹鋼(gang)管件(jian)的品種包括三通（等(deng)徑與(yu)(yu)異(yi)徑）、90°彎(wan)頭(tou)（長半徑與(yu)(yu)短半徑）、異(yi)徑管或(huo)異(yi)徑接頭(tou)（同(tong)心與(yu)(yu)偏心）和管帽4種，尺(chi)寸分(fen)公制(zhi)(zhi)和英制(zhi)(zhi)兩個系列。此種管件(jian)主要用(yong)(yong)于化(hua)工及石油化(hua)工企(qi)...
化(hua)工鋼(gang)制(zhi)無縫不(bu)銹(xiu)鋼(gang)對焊管件(jian)結構型(xing)式(shi)與尺寸見(jian)(jian)(jian)下表(biao)一、管件(jian) 1.三(san)(san)通(tong)(tong) 三(san)(san)通(tong)(tong)型(xing)式(shi)見(jian)(jian)(jian)圖(tu)15-1，公制(zhi)三(san)(san)通(tong)(tong)尺寸見(jian)(jian)(jian)表(biao)15-1；英(ying)制(zhi)三(san)(san)通(tong)(tong)尺寸見(jian)(jian)(jian)表(biao)15-2。 a.短半(ban)徑(jing)(jing)彎頭(tou)(tou) 短半(ban)徑(jing)(jing)彎頭(tou)(tou)型(xing)式(shi)見(jian)(jian)(jian)圖(tu)15-2，公制(zhi)三(san)(san)通(tong)(tong)尺寸見(jian)(jian)(jian)表(biao)15-3；英(ying)制(zhi)三(san)(san)通(tong)(tong)...
化工鋼制(zhi)(zhi)(zhi)無縫對(dui)焊管(guan)(guan)(guan)件(jian)(jian)(jian)是以(yi)碳鋼、低合(he)金(jin)鋼材料或無縫鋼管(guan)(guan)(guan)制(zhi)(zhi)(zhi)造的(de)無縫管(guan)(guan)(guan)件(jian)(jian)(jian)，管(guan)(guan)(guan)件(jian)(jian)(jian)與管(guan)(guan)(guan)子的(de)連接采用對(dui)焊式。管(guan)(guan)(guan)件(jian)(jian)(jian)的(de)品種(zhong)(zhong)包括三(san)通（等徑(jing)(jing)與異(yi)徑(jing)(jing)）、90°彎頭(tou)（長半(ban)徑(jing)(jing)與短半(ban)徑(jing)(jing)）、異(yi)徑(jing)(jing)管(guan)(guan)(guan)或異(yi)徑(jing)(jing)接頭(tou)（同(tong)心(xin)與偏心(xin)）和管(guan)(guan)(guan)帽4種(zhong)(zhong)，尺(chi)寸分公制(zhi)(zhi)(zhi)和英制(zhi)(zhi)(zhi)兩個系列。此種(zhong)(zhong)管(guan)(guan)(guan)件(jian)(jian)(jian)主(zhu)要(yao)用于化工及石油化工企業。1...
1.電站彎(wan)管(guan)(guan)(guan)標(biao)(biao)記 a.標(biao)(biao)記方法 對于(yu)外徑管(guan)(guan)(guan)，電站彎(wan)管(guan)(guan)(guan)標(biao)(biao)記方法如下： b.標(biao)(biao)記示例(li) 外徑OD為325mm，壁厚S為30mm，鋼號為12CrlMoV，彎(wan)曲(qu)半徑R為1300mm，彎(wan)曲(qu)角度(du)0為90°的彎(wan)管(guan)(guan)(guan)表示為：OD32...
a.不銹(xiu)鋼(gang)彎(wan)管表(biao)面不應有(you)裂紋(wen)、折疊(die)、重皮、凹(ao)陷(xian)、尖銳劃痕等(deng)缺陷(xian)。表(biao)面以現(xian)裂紋(wen)、重皮等(deng)缺陷(xian)，應逐步(bu)修磨直至缺陷(xian)完全(quan)消除(chu)，修磨后的實際壁厚應符合14.3.2.6c條(tiao)要求(qiu)。b.不銹(xiu)鋼(gang)彎(wan)管不應有(you)過燒(shao)組織(zhi)，不應出現(xian)晶(jing)間裂紋(wen)。c. 不銹(xiu)鋼(gang)彎(wan)管任(ren)何(he)一點(dian)的實測壁厚不應小(xiao)于管系直管...
電站用不銹(xiu)(xiu)鋼(gang)彎(wan)管(guan)(guan)是用規(gui)(gui)定(ding)壁厚(hou)的(de)直管(guan)(guan)，在規(gui)(gui)定(ding)加熱溫度條件下，按(an)一(yi)定(ding)的(de)彎(wan)曲半徑熱彎(wan)成形(xing)的(de)一(yi)種(zhong)不銹(xiu)(xiu)鋼(gang)彎(wan)管(guan)(guan)，主要用于電站主蒸(zheng)汽(qi)、再(zai)熱蒸(zheng)汽(qi)、主給水(shui)管(guan)(guan)道及一(yi)般鋼(gang)制汽(qi)水(shui)管(guan)(guan)道。 a.公稱壁厚(hou)大于19.0mm的(de)碳鋼(gang)管(guan)(guan)，若彎(wan)制溫度低于900℃，彎(wan)后應對彎(wan)管(guan)(guan)進行回火熱處理。&...
