NEWS
1.制造對焊(han)管(guan)件(jian)的(de)原(yuan)材料為鋼板(ban)，常用(yong)(yong)材料牌號(hao)及相關(guan)標(biao)準見表16-8。根據用(yong)(yong)戶要求(qiu)，管(guan)件(jian)也可采用(yong)(yong)非表列的(de)其他材料制造。2.制造對焊(han)管(guan)件(jian)的(de)鋼板(ban)必須有(you)質量合格(ge)證明(ming)書，并應(ying)根據有(you)關(guan)標(biao)準規范要求(qiu)做化(hua)學分(fen)析和(he)機械性能(neng)的(de)復(fu)驗，確認合格(ge)后方可使用(yong)(yong)。3.鋼板(ban)兩面不得(de)有(you)裂縫、折疊(die)、軋(ya)折、離(li)層、...
化(hua)(hua)工(gong)鋼制(zhi)有縫(feng)對(dui)焊(han)管件是(shi)用碳(tan)鋼、低合金(jin)鋼和(he)奧(ao)氏體不銹鋼鋼板制(zhi)造的(de)(de)具有縱向焊(han)縫(feng)的(de)(de)管件，其(qi)品種包括三(san)通（等徑(jing)(jing)(jing)和(he)異(yi)徑(jing)(jing)(jing)）、彎頭(tou)（短(duan)半(ban)徑(jing)(jing)(jing)90°和(he)長半(ban)徑(jing)(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)(jing)管或異(yi)徑(jing)(jing)(jing)接(jie)頭(tou)（同(tong)心和(he)偏心）三(san)種，與接(jie)管連接(jie)的(de)(de)方式(shi)為對(dui)焊(han)連接(jie)，端部外徑(jing)(jing)(jing)分為Ⅰ系(xi)列和(he)Ⅱ系(xi)列，是(shi)專供(gong)化(hua)(hua)工(gong)行業大型管道使用的(de)(de)一(yi)種...
專(zhuan)用(yong)(yong)(yong)(yong)管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)系指(zhi)在特定使(shi)(shi)用(yong)(yong)(yong)(yong)場合使(shi)(shi)用(yong)(yong)(yong)(yong)的管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)，其(qi)使(shi)(shi)用(yong)(yong)(yong)(yong)范圍較(jiao)通用(yong)(yong)(yong)(yong)管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)窄(zhai)一些。本篇所介紹(shao)的專(zhuan)用(yong)(yong)(yong)(yong)管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)包括不銹鋼(gang)卡(ka)壓式(shi)管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；電站鋼(gang)制對(dui)(dui)焊管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；電站彎(wan)管(guan)；化工鋼(gang)制無縫(feng)對(dui)(dui)焊管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；化工鋼(gang)制有(you)縫(feng)對(dui)(dui)焊管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)；化工鋼(gang)制承插(cha)焊管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼(gang)管(guan)和管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)等7部(bu)分內(nei)容。與通用(yong)(yong)(yong)(yong)管(guan)件(jian)(jian)(jian)(jian)(jian)(jian)相比，...
化(hua)工鋼(gang)制有(you)縫(feng)對焊管件是用碳鋼(gang)、低(di)合金鋼(gang)和奧氏體不銹鋼(gang)鋼(gang)板(ban)制造的(de)具有(you)縱向焊縫(feng)的(de)管件，其品種包括三通(tong)（等徑(jing)(jing)和異(yi)徑(jing)(jing)）、彎頭(tou)（短半徑(jing)(jing)90°和長半徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管或(huo)異(yi)徑(jing)(jing)接頭(tou)（同(tong)心和偏心）三種，與(yu)接管連接的(de)方式為(wei)(wei)對焊連接，端(duan)部外徑(jing)(jing)分為(wei)(wei)Ⅰ系列(lie)(lie)和Ⅱ系列(lie)(lie)，是專供化(hua)工行業大(da)型...
化(hua)工鋼(gang)(gang)制(zhi)無縫對焊管(guan)件(jian)(jian)是以碳(tan)鋼(gang)(gang)、低合金鋼(gang)(gang)材料或無縫鋼(gang)(gang)管(guan)制(zhi)造(zao)的(de)無縫管(guan)件(jian)(jian)，管(guan)件(jian)(jian)與(yu)管(guan)子的(de)連(lian)接采用對焊式。管(guan)件(jian)(jian)的(de)品(pin)種包括(kuo)三(san)通（等徑(jing)(jing)與(yu)異(yi)徑(jing)(jing)）、90°彎頭（長半(ban)徑(jing)(jing)與(yu)短半(ban)徑(jing)(jing)）、異(yi)徑(jing)(jing)管(guan)或異(yi)徑(jing)(jing)接頭（同心與(yu)偏心）和管(guan)帽4種，尺寸分(fen)公(gong)制(zhi)和英制(zhi)兩個系列。此種管(guan)件(jian)(jian)主(zhu)要用于化(hua)工及石油化(hua)工企業。1...
1.化工(gong)(gong)(gong)鋼制無縫不銹鋼對焊管件若采用冷加工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)，成型(xing)后(hou)須(xu)(xu)進(jin)(jin)行消除應力(li)的(de)(de)熱處理。若采用熱加工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)，當其終壓溫度低于表15-16所列終壓溫度時，也必(bi)須(xu)(xu)進(jin)(jin)行熱處理，毛(mao)坯的(de)(de)加熱工(gong)(gong)(gong)藝(yi)及熱處理工(gong)(gong)(gong)藝(yi)可按表15-16。2.不銹鋼三(san)通應保(bao)證兩側的(de)(de)增厚一致，肩(jian)部(bu)圓角過渡部(bu)分的(de)(de)壁厚應保(bao)證大(da)于或等(deng)于...
化(hua)工(gong)鋼制無(wu)縫對(dui)焊管(guan)(guan)件是以碳鋼、低合金(jin)鋼材(cai)料或無(wu)縫鋼管(guan)(guan)制造的(de)(de)無(wu)縫管(guan)(guan)件，管(guan)(guan)件與管(guan)(guan)子(zi)的(de)(de)連接(jie)(jie)采用(yong)對(dui)焊式。不(bu)銹鋼管(guan)(guan)件的(de)(de)品種(zhong)包括三通（等徑(jing)與異(yi)徑(jing)）、90°彎頭（長半(ban)徑(jing)與短半(ban)徑(jing)）、異(yi)徑(jing)管(guan)(guan)或異(yi)徑(jing)接(jie)(jie)頭（同心與偏心）和(he)管(guan)(guan)帽4種(zhong)，尺寸分公制和(he)英制兩個系列。此種(zhong)管(guan)(guan)件主(zhu)要用(yong)于(yu)化(hua)工(gong)及石油化(hua)工(gong)企...
化工鋼(gang)制無縫不銹(xiu)鋼(gang)對焊管件(jian)結構型式(shi)與尺寸(cun)(cun)見(jian)(jian)(jian)下(xia)表(biao)(biao)(biao)一、管件(jian) 1.三(san)通(tong)(tong) 三(san)通(tong)(tong)型式(shi)見(jian)(jian)(jian)圖15-1，公制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)(jian)表(biao)(biao)(biao)15-1；英(ying)制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)(jian)表(biao)(biao)(biao)15-2。 a.短半徑(jing)彎(wan)頭(tou) 短半徑(jing)彎(wan)頭(tou)型式(shi)見(jian)(jian)(jian)圖15-2，公制三(san)通(tong)(tong)尺寸(cun)(cun)見(jian)(jian)(jian)表(biao)(biao)(biao)15-3；英(ying)制三(san)通(tong)(tong)...
化(hua)(hua)工(gong)(gong)(gong)鋼(gang)(gang)(gang)制(zhi)無(wu)縫對焊管(guan)件(jian)是(shi)以碳鋼(gang)(gang)(gang)、低合金(jin)鋼(gang)(gang)(gang)材料或無(wu)縫鋼(gang)(gang)(gang)管(guan)制(zhi)造(zao)的無(wu)縫管(guan)件(jian)，管(guan)件(jian)與管(guan)子的連接采用對焊式。管(guan)件(jian)的品(pin)種(zhong)包括三(san)通（等(deng)徑與異徑）、90°彎頭(tou)（長半徑與短半徑）、異徑管(guan)或異徑接頭(tou)（同(tong)心(xin)與偏心(xin)）和(he)管(guan)帽4種(zhong)，尺寸分公制(zhi)和(he)英(ying)制(zhi)兩個系列。此種(zhong)管(guan)件(jian)主要(yao)用于(yu)化(hua)(hua)工(gong)(gong)(gong)及石油化(hua)(hua)工(gong)(gong)(gong)企業。1...
1.電站彎管(guan)(guan)標(biao)記 a.標(biao)記方(fang)(fang)法 對于(yu)外徑(jing)管(guan)(guan)，電站彎管(guan)(guan)標(biao)記方(fang)(fang)法如下： b.標(biao)記示(shi)(shi)例 外徑(jing)OD為(wei)(wei)325mm，壁(bi)厚S為(wei)(wei)30mm，鋼號為(wei)(wei)12CrlMoV，彎曲半徑(jing)R為(wei)(wei)1300mm，彎曲角度(du)0為(wei)(wei)90°的彎管(guan)(guan)表示(shi)(shi)為(wei)(wei)：OD32...
a.不(bu)銹鋼彎管(guan)表(biao)面(mian)不(bu)應(ying)(ying)(ying)有裂(lie)紋(wen)、折(zhe)疊(die)、重皮(pi)、凹(ao)陷、尖銳劃痕等缺陷。表(biao)面(mian)以現(xian)裂(lie)紋(wen)、重皮(pi)等缺陷，應(ying)(ying)(ying)逐步修磨直(zhi)至缺陷完(wan)全消(xiao)除，修磨后的實(shi)際壁厚應(ying)(ying)(ying)符合14.3.2.6c條要求(qiu)。b.不(bu)銹鋼彎管(guan)不(bu)應(ying)(ying)(ying)有過燒(shao)組織，不(bu)應(ying)(ying)(ying)出現(xian)晶間裂(lie)紋(wen)。c. 不(bu)銹鋼彎管(guan)任(ren)何一點的實(shi)測(ce)壁厚不(bu)應(ying)(ying)(ying)小于管(guan)系直(zhi)管(guan)...
電站用(yong)不銹(xiu)鋼彎管(guan)(guan)是(shi)用(yong)規定壁(bi)厚的(de)直管(guan)(guan)，在規定加熱(re)溫(wen)度條件下(xia)，按(an)一定的(de)彎曲半徑熱(re)彎成形(xing)的(de)一種不銹(xiu)鋼彎管(guan)(guan)，主要用(yong)于電站主蒸汽、再熱(re)蒸汽、主給水(shui)管(guan)(guan)道及一般(ban)鋼制汽水(shui)管(guan)(guan)道。 a.公稱壁(bi)厚大于19.0mm的(de)碳鋼管(guan)(guan)，若(ruo)彎制溫(wen)度低(di)于900℃，彎后應對(dui)彎管(guan)(guan)進行回火熱(re)處理。&...
