NEWS
1.制(zhi)造對(dui)焊管(guan)件(jian)的(de)原(yuan)材料為鋼板，常用材料牌(pai)號及相關標準見表16-8。根據用戶要求，管(guan)件(jian)也可采用非表列的(de)其他材料制(zhi)造。2.制(zhi)造對(dui)焊管(guan)件(jian)的(de)鋼板必須有質量(liang)合(he)格證(zheng)明書，并應(ying)根據有關標準規范要求做化學分(fen)析和機械性能(neng)的(de)復驗，確(que)認合(he)格后方可使(shi)用。3.鋼板兩面不(bu)得有裂縫(feng)、折(zhe)疊(die)、軋折(zhe)、離層、...
化工鋼(gang)制有縫對(dui)焊管(guan)件是用碳鋼(gang)、低(di)合金鋼(gang)和(he)(he)(he)奧(ao)氏體不銹鋼(gang)鋼(gang)板制造的具有縱向焊縫的管(guan)件，其(qi)品種(zhong)(zhong)包括三(san)通(tong)（等徑和(he)(he)(he)異徑）、彎頭(tou)（短半徑90°和(he)(he)(he)長半徑90°、45°）、異徑管(guan)或(huo)異徑接(jie)頭(tou)（同心和(he)(he)(he)偏心）三(san)種(zhong)(zhong)，與接(jie)管(guan)連接(jie)的方式為對(dui)焊連接(jie)，端部外徑分(fen)為Ⅰ系列(lie)和(he)(he)(he)Ⅱ系列(lie)，是專供化工行業大(da)型(xing)管(guan)道使用的一種(zhong)(zhong)...
專(zhuan)(zhuan)用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)系指在特(te)定使用(yong)(yong)場合使用(yong)(yong)的(de)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)，其(qi)使用(yong)(yong)范圍較通(tong)用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)窄一些。本篇所介紹(shao)的(de)專(zhuan)(zhuan)用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)包括(kuo)不銹鋼(gang)卡壓式(shi)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；電站(zhan)鋼(gang)制對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；電站(zhan)彎管(guan)(guan)(guan)；化工(gong)鋼(gang)制無縫(feng)對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；化工(gong)鋼(gang)制有縫(feng)對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；化工(gong)鋼(gang)制承插焊(han)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼(gang)管(guan)(guan)(guan)和(he)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)等7部分內容(rong)。與通(tong)用(yong)(yong)管(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)(jian)相(xiang)比(bi)，...
化(hua)工鋼制(zhi)有縫(feng)對(dui)焊管(guan)(guan)件是(shi)用碳鋼、低合金鋼和奧氏體不銹鋼鋼板制(zhi)造的具有縱(zong)向焊縫(feng)的管(guan)(guan)件，其(qi)品種包括三通（等(deng)徑(jing)和異徑(jing)）、彎(wan)頭（短半徑(jing)90°和長(chang)半徑(jing)90°、45°）、異徑(jing)管(guan)(guan)或異徑(jing)接頭（同(tong)心(xin)和偏心(xin)）三種，與接管(guan)(guan)連接的方式(shi)為(wei)對(dui)焊連接，端(duan)部外徑(jing)分為(wei)Ⅰ系列和Ⅱ系列，是(shi)專(zhuan)供化(hua)工行業大型...
化工(gong)(gong)鋼制(zhi)無縫(feng)對焊(han)管(guan)(guan)(guan)(guan)件是(shi)以碳鋼、低合(he)金鋼材料或無縫(feng)鋼管(guan)(guan)(guan)(guan)制(zhi)造的無縫(feng)管(guan)(guan)(guan)(guan)件，管(guan)(guan)(guan)(guan)件與(yu)管(guan)(guan)(guan)(guan)子(zi)的連(lian)接(jie)采用對焊(han)式。管(guan)(guan)(guan)(guan)件的品種包括三(san)通（等徑(jing)(jing)與(yu)異(yi)徑(jing)(jing)）、90°彎(wan)頭（長半徑(jing)(jing)與(yu)短半徑(jing)(jing)）、異(yi)徑(jing)(jing)管(guan)(guan)(guan)(guan)或異(yi)徑(jing)(jing)接(jie)頭（同心(xin)與(yu)偏心(xin)）和管(guan)(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)(guan)件主要(yao)用于化工(gong)(gong)及石(shi)油(you)化工(gong)(gong)企業。1...
1.化工(gong)鋼(gang)(gang)制無縫不銹鋼(gang)(gang)對焊管件(jian)若采(cai)用冷加工(gong)工(gong)藝，成(cheng)型后(hou)須進(jin)行(xing)(xing)消除應(ying)力的(de)熱(re)(re)處理(li)。若采(cai)用熱(re)(re)加工(gong)工(gong)藝，當其(qi)終(zhong)壓(ya)溫(wen)度低于表15-16所列終(zhong)壓(ya)溫(wen)度時，也必須進(jin)行(xing)(xing)熱(re)(re)處理(li)，毛坯的(de)加熱(re)(re)工(gong)藝及熱(re)(re)處理(li)工(gong)藝可按(an)表15-16。2.不銹鋼(gang)(gang)三通應(ying)保(bao)證(zheng)兩側的(de)增厚一致，肩部(bu)(bu)圓角過渡部(bu)(bu)分的(de)壁厚應(ying)保(bao)證(zheng)大于或等于...
化工(gong)鋼(gang)(gang)(gang)制(zhi)無縫對(dui)焊(han)管(guan)(guan)(guan)件(jian)(jian)是以碳鋼(gang)(gang)(gang)、低合金鋼(gang)(gang)(gang)材料或(huo)無縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)制(zhi)造的無縫管(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)件(jian)(jian)與(yu)管(guan)(guan)(guan)子的連接(jie)采用對(dui)焊(han)式。不銹鋼(gang)(gang)(gang)管(guan)(guan)(guan)件(jian)(jian)的品種(zhong)包括三通（等徑與(yu)異(yi)(yi)(yi)徑）、90°彎頭(tou)（長半徑與(yu)短半徑）、異(yi)(yi)(yi)徑管(guan)(guan)(guan)或(huo)異(yi)(yi)(yi)徑接(jie)頭(tou)（同心與(yu)偏心）和管(guan)(guan)(guan)帽4種(zhong)，尺寸分公(gong)制(zhi)和英制(zhi)兩個系列。此(ci)種(zhong)管(guan)(guan)(guan)件(jian)(jian)主要用于化工(gong)及石油(you)化工(gong)企...
化工鋼制無(wu)縫不(bu)銹鋼對焊(han)管件結構型式與(yu)尺寸見(jian)下(xia)表一、管件 1.三通(tong) 三通(tong)型式見(jian)圖(tu)15-1，公制三通(tong)尺寸見(jian)表15-1；英(ying)制三通(tong)尺寸見(jian)表15-2。 a.短半(ban)徑(jing)彎(wan)頭 短半(ban)徑(jing)彎(wan)頭型式見(jian)圖(tu)15-2，公制三通(tong)尺寸見(jian)表15-3；英(ying)制三通(tong)...
化(hua)工(gong)鋼制(zhi)無(wu)縫對焊管(guan)(guan)件(jian)是以碳鋼、低合金鋼材料(liao)或無(wu)縫鋼管(guan)(guan)制(zhi)造(zao)的無(wu)縫管(guan)(guan)件(jian)，管(guan)(guan)件(jian)與管(guan)(guan)子的連接(jie)采用(yong)對焊式(shi)。管(guan)(guan)件(jian)的品種(zhong)(zhong)包括三通（等(deng)徑(jing)與異(yi)徑(jing)）、90°彎頭(tou)（長(chang)半(ban)(ban)徑(jing)與短(duan)半(ban)(ban)徑(jing)）、異(yi)徑(jing)管(guan)(guan)或異(yi)徑(jing)接(jie)頭(tou)（同心與偏心）和管(guan)(guan)帽4種(zhong)(zhong)，尺(chi)寸分公(gong)制(zhi)和英制(zhi)兩個系列。此(ci)種(zhong)(zhong)管(guan)(guan)件(jian)主要用(yong)于(yu)化(hua)工(gong)及石(shi)油化(hua)工(gong)企(qi)業。1...
1.電(dian)站彎(wan)管標(biao)記(ji) a.標(biao)記(ji)方法 對于外徑管，電(dian)站彎(wan)管標(biao)記(ji)方法如(ru)下： b.標(biao)記(ji)示(shi)例 外徑OD為325mm，壁厚(hou)S為30mm，鋼號為12CrlMoV，彎(wan)曲半徑R為1300mm，彎(wan)曲角度0為90°的彎(wan)管表示(shi)為：OD32...
a.不銹鋼彎管表面(mian)不應有裂(lie)紋、折疊、重皮、凹(ao)陷、尖銳劃痕等(deng)缺陷。表面(mian)以現(xian)裂(lie)紋、重皮等(deng)缺陷，應逐步(bu)修磨直至缺陷完全消除，修磨后的實際(ji)壁厚(hou)應符(fu)合14.3.2.6c條要求。b.不銹鋼彎管不應有過(guo)燒組織(zhi)，不應出現(xian)晶間裂(lie)紋。c. 不銹鋼彎管任何一點的實測壁厚(hou)不應小于管系直管...
電站(zhan)用不銹鋼(gang)(gang)彎管是用規定(ding)壁厚(hou)的直管，在規定(ding)加熱溫度條件(jian)下，按一定(ding)的彎曲半徑熱彎成形(xing)的一種不銹鋼(gang)(gang)彎管，主(zhu)(zhu)要用于電站(zhan)主(zhu)(zhu)蒸(zheng)汽、再熱蒸(zheng)汽、主(zhu)(zhu)給水管道(dao)及一般鋼(gang)(gang)制(zhi)汽水管道(dao)。 a.公稱壁厚(hou)大于19.0mm的碳鋼(gang)(gang)管，若彎制(zhi)溫度低于900℃，彎后應對彎管進(jin)行回火熱處理。&...
