NEWS
1.制造(zao)(zao)對焊管(guan)件的(de)原材料(liao)為鋼板，常用(yong)材料(liao)牌號及相關標準(zhun)見表16-8。根據(ju)用(yong)戶要(yao)求(qiu)，管(guan)件也(ye)可采(cai)用(yong)非表列的(de)其他材料(liao)制造(zao)(zao)。2.制造(zao)(zao)對焊管(guan)件的(de)鋼板必須有(you)質量合格(ge)證明(ming)書(shu)，并應根據(ju)有(you)關標準(zhun)規范要(yao)求(qiu)做化學分析和機械性能的(de)復(fu)驗(yan)，確(que)認合格(ge)后方可使用(yong)。3.鋼板兩(liang)面(mian)不得有(you)裂縫、折(zhe)疊、軋折(zhe)、離層、...
化工鋼(gang)制有縫(feng)(feng)對焊(han)管(guan)件(jian)(jian)是用碳(tan)鋼(gang)、低合金鋼(gang)和奧氏(shi)體不銹鋼(gang)鋼(gang)板(ban)制造的具有縱(zong)向焊(han)縫(feng)(feng)的管(guan)件(jian)(jian)，其品(pin)種包括三通（等徑(jing)(jing)和異(yi)徑(jing)(jing)）、彎頭(tou)（短半(ban)徑(jing)(jing)90°和長半(ban)徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管(guan)或(huo)異(yi)徑(jing)(jing)接(jie)頭(tou)（同心和偏心）三種，與接(jie)管(guan)連接(jie)的方(fang)式為(wei)對焊(han)連接(jie)，端部外(wai)徑(jing)(jing)分為(wei)Ⅰ系列(lie)和Ⅱ系列(lie)，是專供(gong)化工行(xing)業(ye)大型管(guan)道使用的一種...
專(zhuan)(zhuan)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)系指在(zai)特定使(shi)用(yong)(yong)(yong)場合使(shi)用(yong)(yong)(yong)的管(guan)(guan)(guan)件(jian)(jian)(jian)，其使(shi)用(yong)(yong)(yong)范圍(wei)較(jiao)通(tong)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)窄一(yi)些。本篇所介紹(shao)的專(zhuan)(zhuan)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)包括不(bu)銹(xiu)鋼(gang)卡壓式管(guan)(guan)(guan)件(jian)(jian)(jian)；電站鋼(gang)制對焊管(guan)(guan)(guan)件(jian)(jian)(jian)；電站彎(wan)管(guan)(guan)(guan)；化工(gong)(gong)鋼(gang)制無(wu)縫(feng)對焊管(guan)(guan)(guan)件(jian)(jian)(jian)；化工(gong)(gong)鋼(gang)制有縫(feng)對焊管(guan)(guan)(guan)件(jian)(jian)(jian)；化工(gong)(gong)鋼(gang)制承插焊管(guan)(guan)(guan)件(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼(gang)管(guan)(guan)(guan)和管(guan)(guan)(guan)件(jian)(jian)(jian)等(deng)7部(bu)分內(nei)容。與(yu)通(tong)用(yong)(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)相(xiang)比，...
化工鋼(gang)(gang)(gang)制(zhi)有縫對(dui)焊(han)管(guan)件是用碳鋼(gang)(gang)(gang)、低合金鋼(gang)(gang)(gang)和(he)(he)奧氏體不(bu)銹鋼(gang)(gang)(gang)鋼(gang)(gang)(gang)板制(zhi)造的具有縱向焊(han)縫的管(guan)件，其品種(zhong)包(bao)括三通(tong)（等徑和(he)(he)異徑）、彎頭（短半徑90°和(he)(he)長(chang)半徑90°、45°）、異徑管(guan)或異徑接(jie)(jie)(jie)(jie)頭（同心和(he)(he)偏(pian)心）三種(zhong)，與接(jie)(jie)(jie)(jie)管(guan)連接(jie)(jie)(jie)(jie)的方式為對(dui)焊(han)連接(jie)(jie)(jie)(jie)，端部外(wai)徑分為Ⅰ系(xi)(xi)列(lie)和(he)(he)Ⅱ系(xi)(xi)列(lie)，是專供化工行業大型...
化工(gong)鋼(gang)(gang)制無(wu)(wu)縫對(dui)(dui)焊(han)管(guan)(guan)(guan)(guan)件(jian)是以碳鋼(gang)(gang)、低合(he)金鋼(gang)(gang)材料或無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)(guan)制造(zao)的無(wu)(wu)縫管(guan)(guan)(guan)(guan)件(jian)，管(guan)(guan)(guan)(guan)件(jian)與管(guan)(guan)(guan)(guan)子(zi)的連接采用對(dui)(dui)焊(han)式(shi)。管(guan)(guan)(guan)(guan)件(jian)的品種包括(kuo)三通（等徑(jing)與異徑(jing)）、90°彎頭（長半徑(jing)與短半徑(jing)）、異徑(jing)管(guan)(guan)(guan)(guan)或異徑(jing)接頭（同心與偏(pian)心）和管(guan)(guan)(guan)(guan)帽4種，尺寸分公制和英制兩個系(xi)列。此(ci)種管(guan)(guan)(guan)(guan)件(jian)主要用于(yu)化工(gong)及(ji)石油(you)化工(gong)企業。1...
1.化(hua)工鋼(gang)(gang)(gang)制無縫不(bu)銹鋼(gang)(gang)(gang)對焊管件若(ruo)采用(yong)冷加工工藝，成型后須進(jin)行消除應力的(de)熱處理(li)(li)。若(ruo)采用(yong)熱加工工藝，當其終(zhong)(zhong)壓溫度(du)(du)低于(yu)表15-16所列終(zhong)(zhong)壓溫度(du)(du)時，也(ye)必須進(jin)行熱處理(li)(li)，毛坯的(de)加熱工藝及熱處理(li)(li)工藝可按表15-16。2.不(bu)銹鋼(gang)(gang)(gang)三(san)通應保證兩側的(de)增厚(hou)一致，肩部圓角過(guo)渡部分的(de)壁(bi)厚(hou)應保證大于(yu)或等于(yu)...
化(hua)工(gong)鋼制(zhi)(zhi)無(wu)縫(feng)(feng)對焊管(guan)(guan)件(jian)是以(yi)碳鋼、低合金鋼材(cai)料或無(wu)縫(feng)(feng)鋼管(guan)(guan)制(zhi)(zhi)造的(de)(de)無(wu)縫(feng)(feng)管(guan)(guan)件(jian)，管(guan)(guan)件(jian)與(yu)管(guan)(guan)子的(de)(de)連(lian)接采用(yong)對焊式。不銹鋼管(guan)(guan)件(jian)的(de)(de)品種包括三通（等徑與(yu)異(yi)徑）、90°彎頭(tou)（長半(ban)徑與(yu)短(duan)半(ban)徑）、異(yi)徑管(guan)(guan)或異(yi)徑接頭(tou)（同(tong)心與(yu)偏心）和管(guan)(guan)帽(mao)4種，尺寸分(fen)公制(zhi)(zhi)和英制(zhi)(zhi)兩個系(xi)列。此種管(guan)(guan)件(jian)主(zhu)要用(yong)于(yu)化(hua)工(gong)及石油化(hua)工(gong)企...
化(hua)工鋼制無縫(feng)不銹鋼對(dui)焊管(guan)件(jian)結構型式與尺(chi)(chi)寸(cun)見下表(biao)一、管(guan)件(jian) 1.三通(tong)(tong) 三通(tong)(tong)型式見圖15-1，公制三通(tong)(tong)尺(chi)(chi)寸(cun)見表(biao)15-1；英制三通(tong)(tong)尺(chi)(chi)寸(cun)見表(biao)15-2。 a.短(duan)半徑彎(wan)(wan)頭 短(duan)半徑彎(wan)(wan)頭型式見圖15-2，公制三通(tong)(tong)尺(chi)(chi)寸(cun)見表(biao)15-3；英制三通(tong)(tong)...
化工鋼(gang)制(zhi)(zhi)無(wu)縫(feng)對焊(han)管(guan)件是以碳(tan)鋼(gang)、低合金鋼(gang)材料(liao)或無(wu)縫(feng)鋼(gang)管(guan)制(zhi)(zhi)造的(de)無(wu)縫(feng)管(guan)件，管(guan)件與管(guan)子的(de)連接采用(yong)(yong)對焊(han)式。管(guan)件的(de)品(pin)種包(bao)括三通（等(deng)徑(jing)與異(yi)徑(jing)）、90°彎頭(tou)（長半徑(jing)與短半徑(jing)）、異(yi)徑(jing)管(guan)或異(yi)徑(jing)接頭(tou)（同心(xin)與偏心(xin)）和(he)(he)管(guan)帽4種，尺寸分(fen)公制(zhi)(zhi)和(he)(he)英制(zhi)(zhi)兩個系列。此種管(guan)件主要(yao)用(yong)(yong)于化工及石油(you)化工企業。1...
1.電站彎管(guan)(guan)標記 a.標記方法 對于外徑(jing)管(guan)(guan)，電站彎管(guan)(guan)標記方法如(ru)下： b.標記示例 外徑(jing)OD為325mm，壁厚S為30mm，鋼號為12CrlMoV，彎曲半徑(jing)R為1300mm，彎曲角(jiao)度0為90°的彎管(guan)(guan)表示為：OD32...
a.不(bu)銹鋼彎(wan)管(guan)表面不(bu)應(ying)有裂紋、折疊、重皮(pi)、凹陷、尖(jian)銳劃(hua)痕等(deng)缺陷。表面以現(xian)裂紋、重皮(pi)等(deng)缺陷，應(ying)逐步修磨(mo)直(zhi)至(zhi)缺陷完全消除，修磨(mo)后的實(shi)(shi)際壁(bi)厚應(ying)符合14.3.2.6c條(tiao)要求。b.不(bu)銹鋼彎(wan)管(guan)不(bu)應(ying)有過燒組織，不(bu)應(ying)出現(xian)晶間裂紋。c. 不(bu)銹鋼彎(wan)管(guan)任何一點的實(shi)(shi)測壁(bi)厚不(bu)應(ying)小(xiao)于管(guan)系直(zhi)管(guan)...
電(dian)站(zhan)用(yong)不銹(xiu)鋼(gang)彎(wan)管(guan)是(shi)用(yong)規(gui)定壁(bi)厚的直管(guan)，在規(gui)定加(jia)熱溫度條件下(xia)，按一(yi)(yi)定的彎(wan)曲(qu)半(ban)徑熱彎(wan)成形(xing)的一(yi)(yi)種(zhong)不銹(xiu)鋼(gang)彎(wan)管(guan)，主(zhu)要用(yong)于(yu)電(dian)站(zhan)主(zhu)蒸汽(qi)、再熱蒸汽(qi)、主(zhu)給(gei)水(shui)管(guan)道(dao)及一(yi)(yi)般鋼(gang)制(zhi)汽(qi)水(shui)管(guan)道(dao)。 a.公稱(cheng)壁(bi)厚大于(yu)19.0mm的碳鋼(gang)管(guan)，若彎(wan)制(zhi)溫度低于(yu)900℃，彎(wan)后應對彎(wan)管(guan)進行回火熱處理(li)。&...
