NEWS
1.制(zhi)造對焊(han)管(guan)件(jian)的(de)(de)(de)(de)原(yuan)材料為(wei)鋼(gang)板(ban)，常用材料牌號(hao)及相關標準見表16-8。根(gen)據(ju)用戶要求，管(guan)件(jian)也(ye)可采用非表列的(de)(de)(de)(de)其他(ta)材料制(zhi)造。2.制(zhi)造對焊(han)管(guan)件(jian)的(de)(de)(de)(de)鋼(gang)板(ban)必須有質量合格證明書，并應根(gen)據(ju)有關標準規(gui)范要求做化學分(fen)析和(he)機械性能(neng)的(de)(de)(de)(de)復驗(yan)，確(que)認合格后方(fang)可使用。3.鋼(gang)板(ban)兩面不得有裂縫、折(zhe)疊、軋折(zhe)、離層(ceng)、...
化工鋼(gang)制(zhi)有縫對(dui)焊管(guan)件是用碳鋼(gang)、低合金鋼(gang)和(he)奧氏體不銹(xiu)鋼(gang)鋼(gang)板制(zhi)造(zao)的具(ju)有縱向焊縫的管(guan)件，其品種包括三通（等徑(jing)(jing)和(he)異(yi)徑(jing)(jing)）、彎頭（短(duan)半徑(jing)(jing)90°和(he)長半徑(jing)(jing)90°、45°）、異(yi)徑(jing)(jing)管(guan)或異(yi)徑(jing)(jing)接頭（同心(xin)和(he)偏(pian)心(xin)）三種，與接管(guan)連接的方式為對(dui)焊連接，端部外徑(jing)(jing)分為Ⅰ系(xi)(xi)列(lie)和(he)Ⅱ系(xi)(xi)列(lie)，是專供化工行業大型管(guan)道使用的一種...
專(zhuan)用管(guan)(guan)(guan)(guan)件系指在特定使(shi)(shi)用場合使(shi)(shi)用的(de)管(guan)(guan)(guan)(guan)件，其(qi)使(shi)(shi)用范(fan)圍(wei)較通用管(guan)(guan)(guan)(guan)件窄(zhai)一些。本篇所介紹的(de)專(zhuan)用管(guan)(guan)(guan)(guan)件包(bao)括不銹鋼卡壓式管(guan)(guan)(guan)(guan)件；電(dian)站鋼制對(dui)焊管(guan)(guan)(guan)(guan)件；電(dian)站彎(wan)管(guan)(guan)(guan)(guan)；化(hua)工(gong)(gong)鋼制無縫對(dui)焊管(guan)(guan)(guan)(guan)件；化(hua)工(gong)(gong)鋼制有(you)縫對(dui)焊管(guan)(guan)(guan)(guan)件；化(hua)工(gong)(gong)鋼制承(cheng)插焊管(guan)(guan)(guan)(guan)件及襯塑（PP、PE、PVC）鋼管(guan)(guan)(guan)(guan)和管(guan)(guan)(guan)(guan)件等7部(bu)分(fen)內容(rong)。與(yu)通用管(guan)(guan)(guan)(guan)件相比，...
化工鋼(gang)制有縫(feng)對焊(han)管(guan)件是(shi)(shi)用碳鋼(gang)、低合(he)金鋼(gang)和(he)奧氏體(ti)不銹鋼(gang)鋼(gang)板制造的(de)具有縱(zong)向焊(han)縫(feng)的(de)管(guan)件，其(qi)品種包括三通（等徑(jing)和(he)異(yi)徑(jing)）、彎頭（短(duan)半徑(jing)90°和(he)長半徑(jing)90°、45°）、異(yi)徑(jing)管(guan)或異(yi)徑(jing)接(jie)頭（同心和(he)偏心）三種，與(yu)接(jie)管(guan)連接(jie)的(de)方(fang)式為對焊(han)連接(jie)，端(duan)部外徑(jing)分為Ⅰ系(xi)列和(he)Ⅱ系(xi)列，是(shi)(shi)專供化工行業大型...
化工鋼制(zhi)無縫對焊管(guan)件(jian)(jian)是以碳鋼、低合(he)金鋼材料或無縫鋼管(guan)制(zhi)造的(de)(de)無縫管(guan)件(jian)(jian)，管(guan)件(jian)(jian)與(yu)(yu)管(guan)子的(de)(de)連接(jie)采用對焊式(shi)。管(guan)件(jian)(jian)的(de)(de)品種(zhong)包(bao)括(kuo)三通（等徑(jing)與(yu)(yu)異(yi)徑(jing)）、90°彎頭（長半(ban)徑(jing)與(yu)(yu)短半(ban)徑(jing)）、異(yi)徑(jing)管(guan)或異(yi)徑(jing)接(jie)頭（同(tong)心與(yu)(yu)偏心）和管(guan)帽4種(zhong)，尺寸分(fen)公制(zhi)和英制(zhi)兩個系列。此種(zhong)管(guan)件(jian)(jian)主要用于化工及石油(you)化工企業。1...
1.化(hua)工(gong)鋼(gang)制無縫不銹(xiu)鋼(gang)對(dui)焊管件若采(cai)用冷加工(gong)工(gong)藝，成型(xing)后須進行消除應(ying)力的(de)(de)熱處理(li)。若采(cai)用熱加工(gong)工(gong)藝，當其終壓溫(wen)度(du)低(di)于(yu)表15-16所(suo)列(lie)終壓溫(wen)度(du)時，也必須進行熱處理(li)，毛坯的(de)(de)加熱工(gong)藝及(ji)熱處理(li)工(gong)藝可按表15-16。2.不銹(xiu)鋼(gang)三通應(ying)保證兩側的(de)(de)增厚一致，肩部(bu)圓角過渡(du)部(bu)分的(de)(de)壁(bi)厚應(ying)保證大于(yu)或等(deng)于(yu)...
化工鋼(gang)(gang)制(zhi)無(wu)(wu)(wu)縫(feng)對焊管(guan)(guan)(guan)件(jian)(jian)是以碳鋼(gang)(gang)、低合金鋼(gang)(gang)材料或無(wu)(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)制(zhi)造(zao)的(de)無(wu)(wu)(wu)縫(feng)管(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)件(jian)(jian)與(yu)(yu)管(guan)(guan)(guan)子的(de)連接(jie)采用(yong)(yong)對焊式(shi)。不銹(xiu)鋼(gang)(gang)管(guan)(guan)(guan)件(jian)(jian)的(de)品種(zhong)(zhong)包(bao)括三通(tong)（等徑與(yu)(yu)異(yi)徑）、90°彎頭（長半(ban)徑與(yu)(yu)短(duan)半(ban)徑）、異(yi)徑管(guan)(guan)(guan)或異(yi)徑接(jie)頭（同心(xin)與(yu)(yu)偏(pian)心(xin)）和管(guan)(guan)(guan)帽(mao)4種(zhong)(zhong)，尺(chi)寸分公制(zhi)和英制(zhi)兩個系列(lie)。此種(zhong)(zhong)管(guan)(guan)(guan)件(jian)(jian)主要用(yong)(yong)于化工及石油化工企...
化工鋼(gang)制(zhi)無縫(feng)不銹鋼(gang)對焊管件(jian)結構型式與尺寸(cun)見(jian)(jian)下(xia)表一、管件(jian) 1.三通(tong)(tong) 三通(tong)(tong)型式見(jian)(jian)圖(tu)15-1，公制(zhi)三通(tong)(tong)尺寸(cun)見(jian)(jian)表15-1；英(ying)制(zhi)三通(tong)(tong)尺寸(cun)見(jian)(jian)表15-2。 a.短(duan)半(ban)徑彎頭 短(duan)半(ban)徑彎頭型式見(jian)(jian)圖(tu)15-2，公制(zhi)三通(tong)(tong)尺寸(cun)見(jian)(jian)表15-3；英(ying)制(zhi)三通(tong)(tong)...
化工鋼制無縫對(dui)焊管(guan)(guan)(guan)(guan)件(jian)是以碳鋼、低合金鋼材料或(huo)無縫鋼管(guan)(guan)(guan)(guan)制造的(de)無縫管(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(cai)用(yong)對(dui)焊式(shi)。管(guan)(guan)(guan)(guan)件(jian)的(de)品種包括三通（等徑(jing)與異(yi)(yi)徑(jing)）、90°彎頭(tou)（長(chang)半(ban)徑(jing)與短半(ban)徑(jing)）、異(yi)(yi)徑(jing)管(guan)(guan)(guan)(guan)或(huo)異(yi)(yi)徑(jing)接頭(tou)（同心與偏心）和(he)管(guan)(guan)(guan)(guan)帽4種，尺寸分(fen)公制和(he)英制兩(liang)個系列。此(ci)種管(guan)(guan)(guan)(guan)件(jian)主要用(yong)于化工及石油化工企業(ye)。1...
1.電站彎管標記(ji)(ji) a.標記(ji)(ji)方法(fa) 對于外徑(jing)(jing)管，電站彎管標記(ji)(ji)方法(fa)如下(xia)： b.標記(ji)(ji)示(shi)(shi)例 外徑(jing)(jing)OD為(wei)325mm，壁(bi)厚S為(wei)30mm，鋼(gang)號為(wei)12CrlMoV，彎曲(qu)半徑(jing)(jing)R為(wei)1300mm，彎曲(qu)角度0為(wei)90°的彎管表示(shi)(shi)為(wei)：OD32...
a.不銹鋼彎管(guan)表(biao)面不應有裂紋(wen)、折疊、重皮、凹(ao)陷(xian)(xian)、尖銳劃痕等缺(que)陷(xian)(xian)。表(biao)面以現(xian)裂紋(wen)、重皮等缺(que)陷(xian)(xian)，應逐步修磨直至(zhi)缺(que)陷(xian)(xian)完(wan)全消除，修磨后的(de)實際壁(bi)厚(hou)應符合14.3.2.6c條(tiao)要(yao)求(qiu)。b.不銹鋼彎管(guan)不應有過燒組織，不應出現(xian)晶間裂紋(wen)。c. 不銹鋼彎管(guan)任何一點的(de)實測壁(bi)厚(hou)不應小(xiao)于管(guan)系(xi)直管(guan)...
電站用不銹鋼(gang)(gang)彎(wan)管是用規定壁(bi)厚(hou)的直管，在(zai)規定加(jia)熱溫度(du)條件(jian)下，按一(yi)定的彎(wan)曲半(ban)徑(jing)熱彎(wan)成形的一(yi)種不銹鋼(gang)(gang)彎(wan)管，主要(yao)用于電站主蒸汽、再熱蒸汽、主給水管道及一(yi)般鋼(gang)(gang)制汽水管道。 a.公稱壁(bi)厚(hou)大于19.0mm的碳鋼(gang)(gang)管，若彎(wan)制溫度(du)低(di)于900℃，彎(wan)后應(ying)對彎(wan)管進行回火熱處理。&...
