NEWS
1.制造(zao)對焊(han)管(guan)件(jian)(jian)的(de)原材料為鋼板(ban)，常用(yong)(yong)材料牌號及相關標準見表16-8。根(gen)據(ju)用(yong)(yong)戶要(yao)求，管(guan)件(jian)(jian)也(ye)可采(cai)用(yong)(yong)非表列的(de)其他材料制造(zao)。2.制造(zao)對焊(han)管(guan)件(jian)(jian)的(de)鋼板(ban)必須有質量合格(ge)證明書，并應(ying)根(gen)據(ju)有關標準規(gui)范要(yao)求做化學分析和機(ji)械性能的(de)復驗，確認合格(ge)后方可使用(yong)(yong)。3.鋼板(ban)兩面不(bu)得(de)有裂縫(feng)、折疊(die)、軋折、離(li)層、...
化(hua)工鋼(gang)(gang)制有(you)縫對(dui)焊(han)管件是(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)縱向(xiang)焊(han)縫的(de)管件，其(qi)品種包括(kuo)三(san)(san)通（等徑(jing)(jing)(jing)和異徑(jing)(jing)(jing)）、彎頭（短半徑(jing)(jing)(jing)90°和長半徑(jing)(jing)(jing)90°、45°）、異徑(jing)(jing)(jing)管或(huo)異徑(jing)(jing)(jing)接頭（同心和偏心）三(san)(san)種，與接管連接的(de)方式為對(dui)焊(han)連接，端部(bu)外徑(jing)(jing)(jing)分(fen)為Ⅰ系列(lie)和Ⅱ系列(lie)，是(shi)專供化(hua)工行業大型管道使用的(de)一種...
專(zhuan)用管件(jian)(jian)(jian)系指(zhi)在特(te)定使用場(chang)合使用的管件(jian)(jian)(jian)，其使用范圍(wei)較通用管件(jian)(jian)(jian)窄一些。本(ben)篇所介紹的專(zhuan)用管件(jian)(jian)(jian)包括不(bu)銹鋼(gang)卡(ka)壓(ya)式管件(jian)(jian)(jian)；電站鋼(gang)制(zhi)對焊管件(jian)(jian)(jian)；電站彎管；化(hua)工(gong)鋼(gang)制(zhi)無縫對焊管件(jian)(jian)(jian)；化(hua)工(gong)鋼(gang)制(zhi)有縫對焊管件(jian)(jian)(jian)；化(hua)工(gong)鋼(gang)制(zhi)承插焊管件(jian)(jian)(jian)及襯塑（PP、PE、PVC）鋼(gang)管和管件(jian)(jian)(jian)等(deng)7部分內容。與通用管件(jian)(jian)(jian)相比，...
化(hua)工鋼制(zhi)有(you)縫對焊(han)(han)管件是(shi)用(yong)碳鋼、低(di)合(he)金鋼和(he)奧氏體不銹鋼鋼板制(zhi)造(zao)的具有(you)縱向焊(han)(han)縫的管件，其(qi)品種包(bao)括三(san)通（等徑(jing)(jing)(jing)和(he)異徑(jing)(jing)(jing)）、彎頭(tou)（短半徑(jing)(jing)(jing)90°和(he)長半徑(jing)(jing)(jing)90°、45°）、異徑(jing)(jing)(jing)管或異徑(jing)(jing)(jing)接(jie)頭(tou)（同心(xin)(xin)和(he)偏心(xin)(xin)）三(san)種，與接(jie)管連接(jie)的方式為對焊(han)(han)連接(jie)，端部外徑(jing)(jing)(jing)分為Ⅰ系列(lie)和(he)Ⅱ系列(lie)，是(shi)專(zhuan)供化(hua)工行業大型...
化(hua)工鋼(gang)(gang)制(zhi)(zhi)無縫對焊管(guan)件(jian)是以碳(tan)鋼(gang)(gang)、低(di)合(he)金(jin)鋼(gang)(gang)材(cai)料或無縫鋼(gang)(gang)管(guan)制(zhi)(zhi)造的(de)無縫管(guan)件(jian)，管(guan)件(jian)與管(guan)子的(de)連接采用對焊式。管(guan)件(jian)的(de)品(pin)種(zhong)(zhong)(zhong)包括三通（等(deng)徑(jing)與異徑(jing)）、90°彎頭（長半徑(jing)與短半徑(jing)）、異徑(jing)管(guan)或異徑(jing)接頭（同心與偏心）和管(guan)帽4種(zhong)(zhong)(zhong)，尺寸分公制(zhi)(zhi)和英(ying)制(zhi)(zhi)兩個系列。此(ci)種(zhong)(zhong)(zhong)管(guan)件(jian)主(zhu)要用于化(hua)工及石油化(hua)工企業。1...
1.化工(gong)鋼制無縫不銹鋼對焊(han)管件若采(cai)用冷加工(gong)工(gong)藝，成型后須(xu)進(jin)行消(xiao)除應力(li)的(de)熱處理(li)(li)。若采(cai)用熱加工(gong)工(gong)藝，當其終壓(ya)(ya)溫(wen)度低(di)于(yu)表15-16所列終壓(ya)(ya)溫(wen)度時，也必須(xu)進(jin)行熱處理(li)(li)，毛坯的(de)加熱工(gong)藝及熱處理(li)(li)工(gong)藝可按表15-16。2.不銹鋼三通(tong)應保證(zheng)兩(liang)側的(de)增厚一致，肩部(bu)圓角過渡(du)部(bu)分的(de)壁厚應保證(zheng)大于(yu)或等于(yu)...
化工鋼(gang)制(zhi)(zhi)無縫(feng)對焊管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)是以碳(tan)鋼(gang)、低合金鋼(gang)材料或(huo)無縫(feng)鋼(gang)管(guan)(guan)(guan)(guan)(guan)制(zhi)(zhi)造的(de)無縫(feng)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)與(yu)(yu)管(guan)(guan)(guan)(guan)(guan)子的(de)連接采用對焊式。不銹鋼(gang)管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)的(de)品種包括三(san)通（等徑(jing)與(yu)(yu)異徑(jing)）、90°彎頭(tou)(tou)（長(chang)半徑(jing)與(yu)(yu)短(duan)半徑(jing)）、異徑(jing)管(guan)(guan)(guan)(guan)(guan)或(huo)異徑(jing)接頭(tou)(tou)（同心(xin)與(yu)(yu)偏心(xin)）和(he)管(guan)(guan)(guan)(guan)(guan)帽4種，尺寸分公制(zhi)(zhi)和(he)英制(zhi)(zhi)兩個系列。此(ci)種管(guan)(guan)(guan)(guan)(guan)件(jian)(jian)主要用于(yu)化工及(ji)石油化工企...
化工鋼制(zhi)無縫不銹(xiu)鋼對(dui)焊管件結構型式與尺寸見(jian)(jian)下(xia)表(biao)一、管件 1.三(san)通(tong)(tong) 三(san)通(tong)(tong)型式見(jian)(jian)圖15-1，公制(zhi)三(san)通(tong)(tong)尺寸見(jian)(jian)表(biao)15-1；英(ying)(ying)制(zhi)三(san)通(tong)(tong)尺寸見(jian)(jian)表(biao)15-2。 a.短(duan)半徑彎(wan)頭(tou) 短(duan)半徑彎(wan)頭(tou)型式見(jian)(jian)圖15-2，公制(zhi)三(san)通(tong)(tong)尺寸見(jian)(jian)表(biao)15-3；英(ying)(ying)制(zhi)三(san)通(tong)(tong)...
化(hua)工鋼(gang)制(zhi)無縫(feng)對焊(han)管(guan)(guan)件是以碳鋼(gang)、低合金鋼(gang)材料或(huo)無縫(feng)鋼(gang)管(guan)(guan)制(zhi)造的無縫(feng)管(guan)(guan)件，管(guan)(guan)件與(yu)管(guan)(guan)子的連接采(cai)用(yong)對焊(han)式。管(guan)(guan)件的品種(zhong)包括三通（等徑(jing)(jing)(jing)與(yu)異(yi)徑(jing)(jing)(jing)）、90°彎頭（長半徑(jing)(jing)(jing)與(yu)短(duan)半徑(jing)(jing)(jing)）、異(yi)徑(jing)(jing)(jing)管(guan)(guan)或(huo)異(yi)徑(jing)(jing)(jing)接頭（同心與(yu)偏(pian)心）和(he)管(guan)(guan)帽4種(zhong)，尺寸分公制(zhi)和(he)英制(zhi)兩個系列。此種(zhong)管(guan)(guan)件主要用(yong)于化(hua)工及石油化(hua)工企(qi)業。1...
1.電(dian)(dian)站彎(wan)管(guan)標(biao)記 a.標(biao)記方法 對(dui)于(yu)外徑管(guan)，電(dian)(dian)站彎(wan)管(guan)標(biao)記方法如下： b.標(biao)記示(shi)例(li) 外徑OD為(wei)(wei)325mm，壁厚S為(wei)(wei)30mm，鋼號(hao)為(wei)(wei)12CrlMoV，彎(wan)曲(qu)半徑R為(wei)(wei)1300mm，彎(wan)曲(qu)角度(du)0為(wei)(wei)90°的彎(wan)管(guan)表示(shi)為(wei)(wei)：OD32...
a.不(bu)銹(xiu)鋼彎(wan)管表面不(bu)應(ying)有裂(lie)紋(wen)、折疊、重(zhong)皮、凹陷(xian)(xian)(xian)、尖銳劃痕等(deng)缺(que)陷(xian)(xian)(xian)。表面以現裂(lie)紋(wen)、重(zhong)皮等(deng)缺(que)陷(xian)(xian)(xian)，應(ying)逐(zhu)步修(xiu)磨直至缺(que)陷(xian)(xian)(xian)完全消除(chu)，修(xiu)磨后的實際壁厚應(ying)符合(he)14.3.2.6c條要求。b.不(bu)銹(xiu)鋼彎(wan)管不(bu)應(ying)有過燒(shao)組織(zhi)，不(bu)應(ying)出現晶間裂(lie)紋(wen)。c. 不(bu)銹(xiu)鋼彎(wan)管任何(he)一點的實測壁厚不(bu)應(ying)小于管系直管...
電站用(yong)不(bu)銹鋼(gang)彎(wan)管(guan)是(shi)用(yong)規(gui)定(ding)壁厚的直管(guan)，在規(gui)定(ding)加熱溫度條件下，按一(yi)定(ding)的彎(wan)曲半徑熱彎(wan)成形的一(yi)種不(bu)銹鋼(gang)彎(wan)管(guan)，主(zhu)要用(yong)于電站主(zhu)蒸汽(qi)(qi)、再熱蒸汽(qi)(qi)、主(zhu)給水管(guan)道(dao)及一(yi)般鋼(gang)制(zhi)(zhi)汽(qi)(qi)水管(guan)道(dao)。 a.公稱壁厚大(da)于19.0mm的碳鋼(gang)管(guan)，若(ruo)彎(wan)制(zhi)(zhi)溫度低于900℃，彎(wan)后應(ying)對彎(wan)管(guan)進行回火熱處(chu)理。&...
