NEWS
1.制(zhi)造(zao)對(dui)焊管(guan)件的原材(cai)料為(wei)鋼板，常用(yong)(yong)材(cai)料牌號及(ji)相關標準見表16-8。根據(ju)用(yong)(yong)戶要(yao)求，管(guan)件也可(ke)采(cai)用(yong)(yong)非表列的其他材(cai)料制(zhi)造(zao)。2.制(zhi)造(zao)對(dui)焊管(guan)件的鋼板必(bi)須有(you)(you)質量合格證明書，并(bing)應(ying)根據(ju)有(you)(you)關標準規范要(yao)求做(zuo)化(hua)學分析和機械性能的復驗，確認合格后(hou)方可(ke)使(shi)用(yong)(yong)。3.鋼板兩面(mian)不(bu)得有(you)(you)裂縫(feng)、折(zhe)疊、軋折(zhe)、離(li)層、...
化工(gong)鋼(gang)(gang)制有(you)(you)縫對(dui)(dui)焊管件(jian)是(shi)用碳鋼(gang)(gang)、低合金鋼(gang)(gang)和奧氏體(ti)不銹鋼(gang)(gang)鋼(gang)(gang)板制造的(de)具(ju)有(you)(you)縱向焊縫的(de)管件(jian)，其品種(zhong)包括三通（等徑(jing)和異(yi)徑(jing)）、彎頭（短半徑(jing)90°和長(chang)半徑(jing)90°、45°）、異(yi)徑(jing)管或(huo)異(yi)徑(jing)接(jie)(jie)頭（同心和偏心）三種(zhong)，與(yu)接(jie)(jie)管連(lian)接(jie)(jie)的(de)方式為對(dui)(dui)焊連(lian)接(jie)(jie)，端部外(wai)徑(jing)分為Ⅰ系列和Ⅱ系列，是(shi)專供(gong)化工(gong)行業大(da)型管道使用的(de)一種(zhong)...
專用(yong)(yong)管(guan)(guan)件(jian)(jian)(jian)系指在特定使用(yong)(yong)場合使用(yong)(yong)的管(guan)(guan)件(jian)(jian)(jian)，其使用(yong)(yong)范圍較通用(yong)(yong)管(guan)(guan)件(jian)(jian)(jian)窄一(yi)些。本篇(pian)所(suo)介紹的專用(yong)(yong)管(guan)(guan)件(jian)(jian)(jian)包(bao)括不銹鋼(gang)(gang)(gang)卡壓式管(guan)(guan)件(jian)(jian)(jian)；電(dian)站(zhan)鋼(gang)(gang)(gang)制(zhi)對焊管(guan)(guan)件(jian)(jian)(jian)；電(dian)站(zhan)彎管(guan)(guan)；化工(gong)鋼(gang)(gang)(gang)制(zhi)無縫對焊管(guan)(guan)件(jian)(jian)(jian)；化工(gong)鋼(gang)(gang)(gang)制(zhi)有縫對焊管(guan)(guan)件(jian)(jian)(jian)；化工(gong)鋼(gang)(gang)(gang)制(zhi)承插焊管(guan)(guan)件(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼(gang)(gang)(gang)管(guan)(guan)和(he)管(guan)(guan)件(jian)(jian)(jian)等7部分內容(rong)。與通用(yong)(yong)管(guan)(guan)件(jian)(jian)(jian)相比(bi)，...
化(hua)工鋼(gang)制有縫對焊(han)管(guan)(guan)件是(shi)用(yong)碳鋼(gang)、低(di)合金(jin)鋼(gang)和奧(ao)氏(shi)體不銹鋼(gang)鋼(gang)板制造的具有縱向焊(han)縫的管(guan)(guan)件，其品(pin)種(zhong)包括三通（等徑(jing)和異徑(jing)）、彎頭(tou)（短半徑(jing)90°和長半徑(jing)90°、45°）、異徑(jing)管(guan)(guan)或異徑(jing)接(jie)頭(tou)（同(tong)心和偏心）三種(zhong)，與(yu)接(jie)管(guan)(guan)連(lian)接(jie)的方式為對焊(han)連(lian)接(jie)，端部外徑(jing)分為Ⅰ系列和Ⅱ系列，是(shi)專供化(hua)工行(xing)業(ye)大型...
化工鋼制無(wu)縫(feng)對(dui)焊管(guan)(guan)(guan)(guan)件(jian)是以碳鋼、低合(he)金鋼材(cai)料或(huo)無(wu)縫(feng)鋼管(guan)(guan)(guan)(guan)制造(zao)的(de)無(wu)縫(feng)管(guan)(guan)(guan)(guan)件(jian)，管(guan)(guan)(guan)(guan)件(jian)與管(guan)(guan)(guan)(guan)子(zi)的(de)連接采用對(dui)焊式(shi)。管(guan)(guan)(guan)(guan)件(jian)的(de)品種包(bao)括三(san)通（等徑(jing)(jing)(jing)與異徑(jing)(jing)(jing)）、90°彎頭(tou)（長半徑(jing)(jing)(jing)與短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管(guan)(guan)(guan)(guan)或(huo)異徑(jing)(jing)(jing)接頭(tou)（同心與偏心）和管(guan)(guan)(guan)(guan)帽(mao)4種，尺(chi)寸分公制和英制兩(liang)個系列(lie)。此種管(guan)(guan)(guan)(guan)件(jian)主(zhu)要用于化工及石油化工企(qi)業。1...
1.化工(gong)鋼(gang)制無縫(feng)不銹(xiu)鋼(gang)對焊管件若采用(yong)冷(leng)加工(gong)工(gong)藝，成(cheng)型(xing)后須進(jin)行消除應力(li)的(de)熱(re)處(chu)理(li)。若采用(yong)熱(re)加工(gong)工(gong)藝，當(dang)其(qi)終壓(ya)溫度(du)低于表(biao)15-16所列終壓(ya)溫度(du)時，也必須進(jin)行熱(re)處(chu)理(li)，毛(mao)坯的(de)加熱(re)工(gong)藝及熱(re)處(chu)理(li)工(gong)藝可按表(biao)15-16。2.不銹(xiu)鋼(gang)三通應保證兩(liang)側的(de)增厚(hou)一致，肩部(bu)圓角(jiao)過渡(du)部(bu)分的(de)壁厚(hou)應保證大于或等(deng)于...
化工鋼(gang)制無(wu)(wu)縫對焊管(guan)件是以碳(tan)鋼(gang)、低合(he)金鋼(gang)材料或無(wu)(wu)縫鋼(gang)管(guan)制造的無(wu)(wu)縫管(guan)件，管(guan)件與(yu)管(guan)子的連接(jie)采用對焊式。不銹鋼(gang)管(guan)件的品(pin)種包括三通（等徑與(yu)異徑）、90°彎頭(tou)（長半徑與(yu)短半徑）、異徑管(guan)或異徑接(jie)頭(tou)（同心與(yu)偏心）和(he)管(guan)帽(mao)4種，尺寸分公(gong)制和(he)英制兩個系列。此(ci)種管(guan)件主要用于化工及石油化工企(qi)...
化(hua)工鋼(gang)制無縫不(bu)銹鋼(gang)對焊(han)管件結(jie)構型式(shi)與尺寸見下表(biao)一、管件 1.三(san)(san)通(tong) 三(san)(san)通(tong)型式(shi)見圖15-1，公制三(san)(san)通(tong)尺寸見表(biao)15-1；英制三(san)(san)通(tong)尺寸見表(biao)15-2。 a.短(duan)半(ban)徑(jing)彎頭 短(duan)半(ban)徑(jing)彎頭型式(shi)見圖15-2，公制三(san)(san)通(tong)尺寸見表(biao)15-3；英制三(san)(san)通(tong)...
化(hua)(hua)工鋼制(zhi)(zhi)無(wu)縫對(dui)焊管(guan)(guan)件是(shi)以碳鋼、低(di)合金(jin)鋼材料(liao)或無(wu)縫鋼管(guan)(guan)制(zhi)(zhi)造的無(wu)縫管(guan)(guan)件，管(guan)(guan)件與管(guan)(guan)子的連接采(cai)用對(dui)焊式。管(guan)(guan)件的品(pin)種包括(kuo)三通(tong)（等徑(jing)與異(yi)(yi)徑(jing)）、90°彎(wan)頭（長半徑(jing)與短半徑(jing)）、異(yi)(yi)徑(jing)管(guan)(guan)或異(yi)(yi)徑(jing)接頭（同心與偏心）和(he)管(guan)(guan)帽4種，尺寸分公制(zhi)(zhi)和(he)英(ying)制(zhi)(zhi)兩個系列(lie)。此種管(guan)(guan)件主要用于(yu)化(hua)(hua)工及石(shi)油化(hua)(hua)工企業(ye)。1...
1.電站彎(wan)(wan)管標(biao)(biao)記 a.標(biao)(biao)記方(fang)法 對于(yu)外徑(jing)管，電站彎(wan)(wan)管標(biao)(biao)記方(fang)法如下(xia)： b.標(biao)(biao)記示例 外徑(jing)OD為(wei)(wei)325mm，壁厚S為(wei)(wei)30mm，鋼號為(wei)(wei)12CrlMoV，彎(wan)(wan)曲(qu)半徑(jing)R為(wei)(wei)1300mm，彎(wan)(wan)曲(qu)角(jiao)度0為(wei)(wei)90°的(de)彎(wan)(wan)管表示為(wei)(wei)：OD32...
a.不(bu)銹鋼彎管表(biao)面不(bu)應(ying)(ying)有(you)裂(lie)(lie)紋(wen)(wen)、折疊、重皮(pi)、凹(ao)陷(xian)、尖(jian)銳劃痕等缺陷(xian)。表(biao)面以現裂(lie)(lie)紋(wen)(wen)、重皮(pi)等缺陷(xian)，應(ying)(ying)逐(zhu)步修磨(mo)直(zhi)至缺陷(xian)完全消除，修磨(mo)后的實(shi)際(ji)壁厚(hou)應(ying)(ying)符(fu)合14.3.2.6c條要求。b.不(bu)銹鋼彎管不(bu)應(ying)(ying)有(you)過燒組織(zhi)，不(bu)應(ying)(ying)出現晶間裂(lie)(lie)紋(wen)(wen)。c. 不(bu)銹鋼彎管任何一(yi)點的實(shi)測壁厚(hou)不(bu)應(ying)(ying)小于(yu)管系直(zhi)管...
電站(zhan)(zhan)用(yong)(yong)不(bu)銹鋼彎(wan)(wan)管(guan)(guan)是用(yong)(yong)規定(ding)壁厚(hou)的(de)直管(guan)(guan)，在(zai)規定(ding)加熱(re)溫度(du)條件下，按一定(ding)的(de)彎(wan)(wan)曲半徑熱(re)彎(wan)(wan)成形的(de)一種不(bu)銹鋼彎(wan)(wan)管(guan)(guan)，主要用(yong)(yong)于(yu)電站(zhan)(zhan)主蒸(zheng)汽、再熱(re)蒸(zheng)汽、主給水管(guan)(guan)道及(ji)一般鋼制(zhi)汽水管(guan)(guan)道。 a.公稱壁厚(hou)大于(yu)19.0mm的(de)碳(tan)鋼管(guan)(guan)，若彎(wan)(wan)制(zhi)溫度(du)低于(yu)900℃，彎(wan)(wan)后應對(dui)彎(wan)(wan)管(guan)(guan)進行(xing)回火熱(re)處理。&...
