NEWS
1.制造對焊(han)管(guan)件的原材料(liao)為鋼(gang)板，常用材料(liao)牌(pai)號及相關標準見表(biao)(biao)16-8。根據(ju)用戶要求，管(guan)件也可采用非(fei)表(biao)(biao)列(lie)的其他材料(liao)制造。2.制造對焊(han)管(guan)件的鋼(gang)板必須有質量合(he)格證(zheng)明書，并應根據(ju)有關標準規(gui)范(fan)要求做(zuo)化學分析(xi)和機械(xie)性能的復(fu)驗，確認合(he)格后方可使用。3.鋼(gang)板兩面不得(de)有裂(lie)縫(feng)、折疊、軋折、離層(ceng)、...
化(hua)工(gong)鋼(gang)制有縫(feng)對焊管件是(shi)用碳鋼(gang)、低合金(jin)鋼(gang)和(he)奧(ao)氏(shi)體不銹鋼(gang)鋼(gang)板制造的(de)具(ju)有縱向焊縫(feng)的(de)管件，其品(pin)種(zhong)包括三通（等(deng)徑(jing)和(he)異徑(jing)）、彎頭（短半徑(jing)90°和(he)長半徑(jing)90°、45°）、異徑(jing)管或(huo)異徑(jing)接(jie)頭（同心和(he)偏心）三種(zhong)，與接(jie)管連(lian)接(jie)的(de)方(fang)式為對焊連(lian)接(jie)，端部外徑(jing)分為Ⅰ系列(lie)和(he)Ⅱ系列(lie)，是(shi)專供化(hua)工(gong)行業(ye)大(da)型管道使(shi)用的(de)一種(zhong)...
專用管(guan)(guan)(guan)件(jian)系指(zhi)在特定使用場合(he)使用的管(guan)(guan)(guan)件(jian)，其(qi)使用范圍較通用管(guan)(guan)(guan)件(jian)窄一些。本篇所介(jie)紹(shao)的專用管(guan)(guan)(guan)件(jian)包(bao)括(kuo)不銹鋼卡壓式管(guan)(guan)(guan)件(jian)；電站鋼制(zhi)(zhi)對焊管(guan)(guan)(guan)件(jian)；電站彎管(guan)(guan)(guan)；化工鋼制(zhi)(zhi)無縫(feng)對焊管(guan)(guan)(guan)件(jian)；化工鋼制(zhi)(zhi)有縫(feng)對焊管(guan)(guan)(guan)件(jian)；化工鋼制(zhi)(zhi)承(cheng)插焊管(guan)(guan)(guan)件(jian)及襯(chen)塑（PP、PE、PVC）鋼管(guan)(guan)(guan)和(he)管(guan)(guan)(guan)件(jian)等7部分內(nei)容。與(yu)通用管(guan)(guan)(guan)件(jian)相(xiang)比，...
化(hua)工(gong)鋼(gang)制(zhi)有(you)縫(feng)對(dui)焊(han)管(guan)件(jian)是(shi)用碳鋼(gang)、低合金鋼(gang)和(he)(he)奧氏體不銹鋼(gang)鋼(gang)板制(zhi)造的具有(you)縱向(xiang)焊(han)縫(feng)的管(guan)件(jian)，其品種(zhong)包(bao)括三通（等(deng)徑(jing)和(he)(he)異(yi)徑(jing)）、彎頭（短半(ban)(ban)徑(jing)90°和(he)(he)長半(ban)(ban)徑(jing)90°、45°）、異(yi)徑(jing)管(guan)或異(yi)徑(jing)接(jie)(jie)頭（同(tong)心(xin)(xin)和(he)(he)偏(pian)心(xin)(xin)）三種(zhong)，與接(jie)(jie)管(guan)連(lian)接(jie)(jie)的方(fang)式為(wei)對(dui)焊(han)連(lian)接(jie)(jie)，端部外徑(jing)分(fen)為(wei)Ⅰ系列和(he)(he)Ⅱ系列，是(shi)專供化(hua)工(gong)行業大型...
化(hua)工(gong)(gong)鋼制(zhi)無縫對(dui)焊(han)(han)管(guan)(guan)件是以碳鋼、低合金(jin)鋼材(cai)料或(huo)無縫鋼管(guan)(guan)制(zhi)造的無縫管(guan)(guan)件，管(guan)(guan)件與管(guan)(guan)子的連接采用(yong)對(dui)焊(han)(han)式。管(guan)(guan)件的品種包括(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)或(huo)異徑(jing)接頭（同心(xin)(xin)與偏心(xin)(xin)）和管(guan)(guan)帽4種，尺寸分公制(zhi)和英制(zhi)兩個系列。此種管(guan)(guan)件主要(yao)用(yong)于化(hua)工(gong)(gong)及石油化(hua)工(gong)(gong)企業。1...
1.化工(gong)(gong)(gong)鋼制無縫不(bu)銹鋼對焊管件若(ruo)采用冷加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝，成型后須進行消除(chu)應(ying)(ying)力的熱處(chu)理(li)(li)。若(ruo)采用熱加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝，當其終壓溫度(du)低(di)于(yu)表15-16所列終壓溫度(du)時，也(ye)必須進行熱處(chu)理(li)(li)，毛坯(pi)的加(jia)熱工(gong)(gong)(gong)藝及熱處(chu)理(li)(li)工(gong)(gong)(gong)藝可按表15-16。2.不(bu)銹鋼三通應(ying)(ying)保證兩側的增厚一致，肩部(bu)圓(yuan)角過渡(du)部(bu)分的壁(bi)厚應(ying)(ying)保證大于(yu)或等于(yu)...
化工鋼制無(wu)縫(feng)對焊管(guan)件(jian)是(shi)以碳鋼、低合金鋼材(cai)料或無(wu)縫(feng)鋼管(guan)制造的(de)無(wu)縫(feng)管(guan)件(jian)，管(guan)件(jian)與管(guan)子的(de)連(lian)接采(cai)用對焊式。不銹鋼管(guan)件(jian)的(de)品(pin)種(zhong)包括三通（等徑(jing)與異徑(jing)）、90°彎頭(tou)（長(chang)半徑(jing)與短半徑(jing)）、異徑(jing)管(guan)或異徑(jing)接頭(tou)（同心與偏心）和(he)管(guan)帽4種(zhong)，尺寸(cun)分公制和(he)英(ying)制兩個系列(lie)。此種(zhong)管(guan)件(jian)主(zhu)要用于化工及石油(you)化工企(qi)...
化工鋼(gang)制無(wu)縫不銹鋼(gang)對焊管件結(jie)構型(xing)式(shi)與(yu)尺(chi)寸見(jian)下表(biao)(biao)一、管件 1.三(san)通(tong) 三(san)通(tong)型(xing)式(shi)見(jian)圖15-1，公(gong)制三(san)通(tong)尺(chi)寸見(jian)表(biao)(biao)15-1；英(ying)制三(san)通(tong)尺(chi)寸見(jian)表(biao)(biao)15-2。 a.短(duan)半(ban)徑(jing)彎(wan)(wan)頭 短(duan)半(ban)徑(jing)彎(wan)(wan)頭型(xing)式(shi)見(jian)圖15-2，公(gong)制三(san)通(tong)尺(chi)寸見(jian)表(biao)(biao)15-3；英(ying)制三(san)通(tong)...
化(hua)(hua)工鋼(gang)(gang)制無(wu)(wu)縫(feng)對焊管(guan)(guan)(guan)件(jian)(jian)是以碳鋼(gang)(gang)、低合金(jin)鋼(gang)(gang)材料或無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)制造的(de)無(wu)(wu)縫(feng)管(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)件(jian)(jian)與(yu)管(guan)(guan)(guan)子(zi)的(de)連接(jie)采(cai)用對焊式(shi)。管(guan)(guan)(guan)件(jian)(jian)的(de)品種(zhong)包括三通（等徑與(yu)異(yi)(yi)(yi)徑）、90°彎頭（長(chang)半徑與(yu)短半徑）、異(yi)(yi)(yi)徑管(guan)(guan)(guan)或異(yi)(yi)(yi)徑接(jie)頭（同(tong)心(xin)與(yu)偏心(xin)）和管(guan)(guan)(guan)帽4種(zhong)，尺寸分(fen)公制和英(ying)制兩(liang)個系(xi)列。此種(zhong)管(guan)(guan)(guan)件(jian)(jian)主要用于化(hua)(hua)工及石油化(hua)(hua)工企業。1...
1.電(dian)站(zhan)彎(wan)(wan)管(guan)標(biao)記(ji)(ji)(ji) a.標(biao)記(ji)(ji)(ji)方(fang)法 對于外徑(jing)管(guan)，電(dian)站(zhan)彎(wan)(wan)管(guan)標(biao)記(ji)(ji)(ji)方(fang)法如下： b.標(biao)記(ji)(ji)(ji)示例 外徑(jing)OD為325mm，壁(bi)厚S為30mm，鋼號(hao)為12CrlMoV，彎(wan)(wan)曲半徑(jing)R為1300mm，彎(wan)(wan)曲角度0為90°的彎(wan)(wan)管(guan)表(biao)示為：OD32...
a.不銹(xiu)鋼彎(wan)管表面(mian)不應(ying)(ying)有裂(lie)(lie)紋、折疊(die)、重皮(pi)、凹陷(xian)、尖銳劃(hua)痕等(deng)(deng)缺陷(xian)。表面(mian)以現(xian)裂(lie)(lie)紋、重皮(pi)等(deng)(deng)缺陷(xian)，應(ying)(ying)逐步修磨直至(zhi)缺陷(xian)完全(quan)消除，修磨后的實際壁厚應(ying)(ying)符合(he)14.3.2.6c條要求(qiu)。b.不銹(xiu)鋼彎(wan)管不應(ying)(ying)有過燒(shao)組織，不應(ying)(ying)出現(xian)晶間裂(lie)(lie)紋。c. 不銹(xiu)鋼彎(wan)管任何一點(dian)的實測壁厚不應(ying)(ying)小于(yu)管系(xi)直管...
電(dian)站用(yong)不(bu)銹(xiu)鋼彎(wan)(wan)管(guan)(guan)是(shi)用(yong)規定(ding)壁厚(hou)的直管(guan)(guan)，在(zai)規定(ding)加熱(re)溫度條件下，按一定(ding)的彎(wan)(wan)曲(qu)半徑熱(re)彎(wan)(wan)成形的一種不(bu)銹(xiu)鋼彎(wan)(wan)管(guan)(guan)，主要用(yong)于電(dian)站主蒸汽(qi)、再熱(re)蒸汽(qi)、主給水(shui)管(guan)(guan)道及一般鋼制汽(qi)水(shui)管(guan)(guan)道。 a.公稱壁厚(hou)大于19.0mm的碳鋼管(guan)(guan)，若彎(wan)(wan)制溫度低于900℃，彎(wan)(wan)后應對(dui)彎(wan)(wan)管(guan)(guan)進行回(hui)火熱(re)處理(li)。&...
