NEWS
1.制造(zao)對焊(han)管(guan)(guan)件(jian)的原材料(liao)為鋼板，常(chang)用材料(liao)牌號及相關(guan)標準見表16-8。根(gen)據用戶(hu)要求，管(guan)(guan)件(jian)也可采(cai)用非表列的其他材料(liao)制造(zao)。2.制造(zao)對焊(han)管(guan)(guan)件(jian)的鋼板必須(xu)有(you)(you)質量合(he)格證明書，并應(ying)根(gen)據有(you)(you)關(guan)標準規范要求做化學分析和機械性能的復驗，確認合(he)格后(hou)方可使用。3.鋼板兩面(mian)不得(de)有(you)(you)裂(lie)縫、折(zhe)疊、軋(ya)折(zhe)、離層、...
化工鋼制有縫對(dui)焊(han)管件(jian)是(shi)用(yong)碳鋼、低合金(jin)鋼和(he)奧氏體(ti)不銹鋼鋼板制造的具有縱向焊(han)縫的管件(jian)，其品(pin)種包(bao)括三通(tong)（等(deng)徑(jing)和(he)異徑(jing)）、彎頭（短(duan)半徑(jing)90°和(he)長半徑(jing)90°、45°）、異徑(jing)管或異徑(jing)接(jie)頭（同(tong)心(xin)和(he)偏心(xin)）三種，與接(jie)管連接(jie)的方式(shi)為(wei)(wei)對(dui)焊(han)連接(jie)，端部外(wai)徑(jing)分為(wei)(wei)Ⅰ系(xi)列和(he)Ⅱ系(xi)列，是(shi)專供化工行業大(da)型管道使用(yong)的一種...
專(zhuan)用(yong)(yong)管件(jian)(jian)(jian)(jian)系指在特定使(shi)用(yong)(yong)場合使(shi)用(yong)(yong)的管件(jian)(jian)(jian)(jian)，其(qi)使(shi)用(yong)(yong)范圍較通(tong)用(yong)(yong)管件(jian)(jian)(jian)(jian)窄一些。本篇所介紹的專(zhuan)用(yong)(yong)管件(jian)(jian)(jian)(jian)包括不銹鋼卡壓式(shi)管件(jian)(jian)(jian)(jian)；電站鋼制(zhi)對(dui)(dui)焊(han)(han)管件(jian)(jian)(jian)(jian)；電站彎管；化工(gong)鋼制(zhi)無縫(feng)對(dui)(dui)焊(han)(han)管件(jian)(jian)(jian)(jian)；化工(gong)鋼制(zhi)有縫(feng)對(dui)(dui)焊(han)(han)管件(jian)(jian)(jian)(jian)；化工(gong)鋼制(zhi)承(cheng)插焊(han)(han)管件(jian)(jian)(jian)(jian)及襯(chen)塑（PP、PE、PVC）鋼管和管件(jian)(jian)(jian)(jian)等7部分內(nei)容。與(yu)通(tong)用(yong)(yong)管件(jian)(jian)(jian)(jian)相比，...
化工鋼制有縫(feng)對焊管件是用碳鋼、低合金鋼和(he)奧(ao)氏(shi)體(ti)不銹鋼鋼板制造(zao)的具有縱向焊縫(feng)的管件，其(qi)品(pin)種包括三通（等徑(jing)(jing)和(he)異徑(jing)(jing)）、彎頭（短半(ban)(ban)徑(jing)(jing)90°和(he)長(chang)半(ban)(ban)徑(jing)(jing)90°、45°）、異徑(jing)(jing)管或異徑(jing)(jing)接(jie)頭（同心和(he)偏心）三種，與接(jie)管連(lian)接(jie)的方式為對焊連(lian)接(jie)，端部外徑(jing)(jing)分為Ⅰ系列(lie)和(he)Ⅱ系列(lie)，是專供(gong)化工行(xing)業(ye)大(da)型...
化(hua)(hua)工(gong)(gong)鋼制(zhi)(zhi)無縫對焊(han)管(guan)(guan)件(jian)是以碳鋼、低合金鋼材料或無縫鋼管(guan)(guan)制(zhi)(zhi)造的無縫管(guan)(guan)件(jian)，管(guan)(guan)件(jian)與(yu)管(guan)(guan)子的連接(jie)采用(yong)(yong)對焊(han)式。管(guan)(guan)件(jian)的品種(zhong)包括三(san)通（等徑(jing)(jing)與(yu)異徑(jing)(jing)）、90°彎頭（長(chang)半徑(jing)(jing)與(yu)短(duan)半徑(jing)(jing)）、異徑(jing)(jing)管(guan)(guan)或異徑(jing)(jing)接(jie)頭（同(tong)心與(yu)偏(pian)心）和管(guan)(guan)帽4種(zhong)，尺寸(cun)分公(gong)制(zhi)(zhi)和英制(zhi)(zhi)兩個系列。此種(zhong)管(guan)(guan)件(jian)主要(yao)用(yong)(yong)于化(hua)(hua)工(gong)(gong)及石油化(hua)(hua)工(gong)(gong)企(qi)業。1...
1.化工(gong)(gong)(gong)鋼(gang)制無(wu)縫(feng)不(bu)銹(xiu)鋼(gang)對焊(han)管件若采用冷(leng)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝，成型后須(xu)進(jin)行消除(chu)應力的(de)熱(re)(re)處理。若采用熱(re)(re)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝，當其終(zhong)(zhong)壓溫(wen)度(du)低(di)于(yu)(yu)表15-16所(suo)列終(zhong)(zhong)壓溫(wen)度(du)時，也必須(xu)進(jin)行熱(re)(re)處理，毛坯的(de)加(jia)熱(re)(re)工(gong)(gong)(gong)藝及熱(re)(re)處理工(gong)(gong)(gong)藝可按表15-16。2.不(bu)銹(xiu)鋼(gang)三(san)通應保(bao)證兩側的(de)增厚(hou)一致，肩部(bu)圓角(jiao)過渡部(bu)分的(de)壁(bi)厚(hou)應保(bao)證大于(yu)(yu)或等(deng)于(yu)(yu)...
化(hua)工(gong)鋼(gang)制無縫(feng)對(dui)(dui)焊(han)管件(jian)(jian)(jian)是以碳(tan)鋼(gang)、低合金(jin)鋼(gang)材料或(huo)無縫(feng)鋼(gang)管制造的無縫(feng)管件(jian)(jian)(jian)，管件(jian)(jian)(jian)與(yu)(yu)管子的連接采用對(dui)(dui)焊(han)式。不銹(xiu)鋼(gang)管件(jian)(jian)(jian)的品(pin)種包括三通（等徑(jing)(jing)(jing)與(yu)(yu)異徑(jing)(jing)(jing)）、90°彎頭（長半徑(jing)(jing)(jing)與(yu)(yu)短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管或(huo)異徑(jing)(jing)(jing)接頭（同心與(yu)(yu)偏(pian)心）和管帽(mao)4種，尺(chi)寸分公制和英制兩個系列。此種管件(jian)(jian)(jian)主(zhu)要(yao)用于化(hua)工(gong)及石(shi)油化(hua)工(gong)企...
化工鋼(gang)制(zhi)(zhi)無縫(feng)不(bu)銹鋼(gang)對焊管件結構型(xing)(xing)式(shi)與尺寸(cun)見(jian)下表一、管件 1.三通(tong)(tong) 三通(tong)(tong)型(xing)(xing)式(shi)見(jian)圖15-1，公制(zhi)(zhi)三通(tong)(tong)尺寸(cun)見(jian)表15-1；英制(zhi)(zhi)三通(tong)(tong)尺寸(cun)見(jian)表15-2。 a.短半徑(jing)彎頭 短半徑(jing)彎頭型(xing)(xing)式(shi)見(jian)圖15-2，公制(zhi)(zhi)三通(tong)(tong)尺寸(cun)見(jian)表15-3；英制(zhi)(zhi)三通(tong)(tong)...
化(hua)工(gong)(gong)鋼(gang)制無(wu)(wu)縫對焊(han)管件是(shi)以碳鋼(gang)、低合金鋼(gang)材料或無(wu)(wu)縫鋼(gang)管制造的(de)(de)無(wu)(wu)縫管件，管件與(yu)管子(zi)的(de)(de)連接(jie)采用對焊(han)式。管件的(de)(de)品種(zhong)包括三通(tong)（等(deng)徑(jing)(jing)(jing)與(yu)異徑(jing)(jing)(jing)）、90°彎(wan)頭（長半徑(jing)(jing)(jing)與(yu)短(duan)半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管或異徑(jing)(jing)(jing)接(jie)頭（同心與(yu)偏心）和管帽4種(zhong)，尺(chi)寸分公制和英制兩個系(xi)列(lie)。此種(zhong)管件主要用于化(hua)工(gong)(gong)及(ji)石油化(hua)工(gong)(gong)企業。1...
1.電(dian)站(zhan)彎管標記(ji)(ji) a.標記(ji)(ji)方法(fa) 對于外(wai)徑管，電(dian)站(zhan)彎管標記(ji)(ji)方法(fa)如下： b.標記(ji)(ji)示(shi)例 外(wai)徑OD為(wei)(wei)325mm，壁厚S為(wei)(wei)30mm，鋼號為(wei)(wei)12CrlMoV，彎曲(qu)半徑R為(wei)(wei)1300mm，彎曲(qu)角度0為(wei)(wei)90°的彎管表示(shi)為(wei)(wei)：OD32...
a.不(bu)銹(xiu)鋼彎管表(biao)面(mian)不(bu)應(ying)有裂(lie)紋、折(zhe)疊、重皮、凹陷(xian)、尖銳劃痕等缺陷(xian)。表(biao)面(mian)以現裂(lie)紋、重皮等缺陷(xian)，應(ying)逐步修(xiu)磨(mo)直(zhi)至缺陷(xian)完全消除，修(xiu)磨(mo)后(hou)的實際壁(bi)厚應(ying)符合14.3.2.6c條(tiao)要(yao)求(qiu)。b.不(bu)銹(xiu)鋼彎管不(bu)應(ying)有過燒組織，不(bu)應(ying)出現晶間裂(lie)紋。c. 不(bu)銹(xiu)鋼彎管任何(he)一(yi)點的實測壁(bi)厚不(bu)應(ying)小于管系直(zhi)管...
電站用不銹鋼(gang)(gang)彎(wan)(wan)管(guan)(guan)(guan)是用規定(ding)壁(bi)厚(hou)(hou)的(de)直管(guan)(guan)(guan)，在規定(ding)加熱溫度(du)條件下，按(an)一定(ding)的(de)彎(wan)(wan)曲(qu)半(ban)徑熱彎(wan)(wan)成形的(de)一種不銹鋼(gang)(gang)彎(wan)(wan)管(guan)(guan)(guan)，主要用于(yu)電站主蒸(zheng)汽(qi)、再熱蒸(zheng)汽(qi)、主給(gei)水管(guan)(guan)(guan)道及一般鋼(gang)(gang)制汽(qi)水管(guan)(guan)(guan)道。 a.公稱壁(bi)厚(hou)(hou)大(da)于(yu)19.0mm的(de)碳鋼(gang)(gang)管(guan)(guan)(guan)，若彎(wan)(wan)制溫度(du)低于(yu)900℃，彎(wan)(wan)后應對彎(wan)(wan)管(guan)(guan)(guan)進行回火熱處理。&...
