NEWS
1.制造對(dui)焊管(guan)件的(de)原材料為鋼(gang)板，常用(yong)材料牌號及(ji)相關標(biao)準見表16-8。根(gen)據用(yong)戶要(yao)求(qiu)，管(guan)件也可(ke)采用(yong)非表列的(de)其他材料制造。2.制造對(dui)焊管(guan)件的(de)鋼(gang)板必須有(you)質量合(he)格證明書，并(bing)應根(gen)據有(you)關標(biao)準規范要(yao)求(qiu)做化學分(fen)析和機械性能的(de)復驗，確(que)認合(he)格后方(fang)可(ke)使用(yong)。3.鋼(gang)板兩面不得有(you)裂縫、折(zhe)(zhe)疊、軋折(zhe)(zhe)、離層、...
化工鋼制(zhi)(zhi)有(you)縫(feng)對焊(han)管件是(shi)用(yong)碳鋼、低合金鋼和奧氏體不銹(xiu)鋼鋼板制(zhi)(zhi)造的(de)具有(you)縱向焊(han)縫(feng)的(de)管件，其品(pin)種(zhong)包括三通（等徑(jing)和異(yi)徑(jing)）、彎頭(tou)(tou)（短半(ban)徑(jing)90°和長半(ban)徑(jing)90°、45°）、異(yi)徑(jing)管或異(yi)徑(jing)接(jie)頭(tou)(tou)（同(tong)心和偏心）三種(zhong)，與接(jie)管連接(jie)的(de)方式為(wei)對焊(han)連接(jie)，端部外徑(jing)分(fen)為(wei)Ⅰ系列和Ⅱ系列，是(shi)專供化工行業大型管道使用(yong)的(de)一種(zhong)...
專(zhuan)用管(guan)(guan)件(jian)(jian)(jian)系指在特定(ding)使(shi)(shi)用場合使(shi)(shi)用的(de)管(guan)(guan)件(jian)(jian)(jian)，其使(shi)(shi)用范圍較通(tong)用管(guan)(guan)件(jian)(jian)(jian)窄(zhai)一些(xie)。本篇所(suo)介紹的(de)專(zhuan)用管(guan)(guan)件(jian)(jian)(jian)包括不銹鋼卡壓式管(guan)(guan)件(jian)(jian)(jian)；電站鋼制對(dui)焊(han)管(guan)(guan)件(jian)(jian)(jian)；電站彎管(guan)(guan)；化工鋼制無縫對(dui)焊(han)管(guan)(guan)件(jian)(jian)(jian)；化工鋼制有(you)縫對(dui)焊(han)管(guan)(guan)件(jian)(jian)(jian)；化工鋼制承(cheng)插焊(han)管(guan)(guan)件(jian)(jian)(jian)及襯(chen)塑（PP、PE、PVC）鋼管(guan)(guan)和管(guan)(guan)件(jian)(jian)(jian)等(deng)7部分內(nei)容(rong)。與通(tong)用管(guan)(guan)件(jian)(jian)(jian)相比(bi)，...
化工鋼(gang)(gang)(gang)制有縫對焊(han)管(guan)(guan)件是用碳鋼(gang)(gang)(gang)、低合金(jin)鋼(gang)(gang)(gang)和奧氏體不銹鋼(gang)(gang)(gang)鋼(gang)(gang)(gang)板制造的(de)具有縱向焊(han)縫的(de)管(guan)(guan)件，其品種(zhong)包(bao)括三通（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(guan)(guan)或(huo)異(yi)徑(jing)(jing)接(jie)(jie)(jie)頭(tou)（同心和偏(pian)心）三種(zhong)，與接(jie)(jie)(jie)管(guan)(guan)連(lian)(lian)接(jie)(jie)(jie)的(de)方(fang)式為對焊(han)連(lian)(lian)接(jie)(jie)(jie)，端部外徑(jing)(jing)分為Ⅰ系列(lie)(lie)和Ⅱ系列(lie)(lie)，是專供化工行業大(da)型...
化(hua)工鋼制(zhi)無(wu)縫(feng)對焊管(guan)件(jian)是以碳(tan)鋼、低合金鋼材料或(huo)無(wu)縫(feng)鋼管(guan)制(zhi)造的無(wu)縫(feng)管(guan)件(jian)，管(guan)件(jian)與管(guan)子(zi)的連接(jie)采用對焊式。管(guan)件(jian)的品種(zhong)包括(kuo)三通(tong)（等徑(jing)與異(yi)徑(jing)）、90°彎頭(tou)（長半徑(jing)與短半徑(jing)）、異(yi)徑(jing)管(guan)或(huo)異(yi)徑(jing)接(jie)頭(tou)（同心(xin)(xin)與偏心(xin)(xin)）和(he)管(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)件(jian)主要用于化(hua)工及石(shi)油化(hua)工企業。1...
1.化工(gong)鋼(gang)(gang)制無縫不銹鋼(gang)(gang)對焊管件若采用冷加工(gong)工(gong)藝，成型(xing)后須進行消(xiao)除應(ying)力的熱處(chu)(chu)理(li)。若采用熱加工(gong)工(gong)藝，當其終(zhong)壓溫度低(di)于(yu)表15-16所列終(zhong)壓溫度時，也必須進行熱處(chu)(chu)理(li)，毛坯的加熱工(gong)藝及熱處(chu)(chu)理(li)工(gong)藝可按表15-16。2.不銹鋼(gang)(gang)三(san)通應(ying)保(bao)證兩側的增(zeng)厚一致，肩部圓角過(guo)渡(du)部分(fen)的壁厚應(ying)保(bao)證大(da)于(yu)或等于(yu)...
化(hua)(hua)工鋼制無(wu)縫對(dui)焊(han)管件(jian)(jian)是(shi)以碳鋼、低合金鋼材料或無(wu)縫鋼管制造(zao)的(de)無(wu)縫管件(jian)(jian)，管件(jian)(jian)與管子(zi)的(de)連接(jie)采(cai)用(yong)對(dui)焊(han)式。不銹鋼管件(jian)(jian)的(de)品種包括三通(tong)（等徑(jing)與異(yi)徑(jing)）、90°彎頭(tou)（長半徑(jing)與短半徑(jing)）、異(yi)徑(jing)管或異(yi)徑(jing)接(jie)頭(tou)（同心與偏(pian)心）和管帽(mao)4種，尺寸分公(gong)制和英制兩(liang)個系列。此種管件(jian)(jian)主要(yao)用(yong)于化(hua)(hua)工及石油(you)化(hua)(hua)工企...
化工鋼制(zhi)無縫不銹鋼對(dui)焊管(guan)件結構(gou)型式與尺寸(cun)見(jian)(jian)下表(biao)(biao)一、管(guan)件 1.三通 三通型式見(jian)(jian)圖(tu)15-1，公(gong)制(zhi)三通尺寸(cun)見(jian)(jian)表(biao)(biao)15-1；英制(zhi)三通尺寸(cun)見(jian)(jian)表(biao)(biao)15-2。 a.短(duan)半徑彎頭 短(duan)半徑彎頭型式見(jian)(jian)圖(tu)15-2，公(gong)制(zhi)三通尺寸(cun)見(jian)(jian)表(biao)(biao)15-3；英制(zhi)三通...
化工鋼(gang)制無縫(feng)(feng)對焊管(guan)(guan)(guan)件(jian)(jian)是以(yi)碳鋼(gang)、低合金鋼(gang)材料或無縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)制造的無縫(feng)(feng)管(guan)(guan)(guan)件(jian)(jian)，管(guan)(guan)(guan)件(jian)(jian)與(yu)管(guan)(guan)(guan)子(zi)的連接(jie)采用對焊式。管(guan)(guan)(guan)件(jian)(jian)的品種包括三通（等徑(jing)(jing)(jing)與(yu)異徑(jing)(jing)(jing)）、90°彎頭（長半徑(jing)(jing)(jing)與(yu)短半徑(jing)(jing)(jing)）、異徑(jing)(jing)(jing)管(guan)(guan)(guan)或異徑(jing)(jing)(jing)接(jie)頭（同(tong)心與(yu)偏心）和管(guan)(guan)(guan)帽4種，尺寸分公制和英制兩(liang)個(ge)系列。此種管(guan)(guan)(guan)件(jian)(jian)主要用于化工及石油化工企業(ye)。1...
1.電站彎(wan)管(guan)標記 a.標記方(fang)法 對于外(wai)徑管(guan)，電站彎(wan)管(guan)標記方(fang)法如下： b.標記示例 外(wai)徑OD為325mm，壁厚S為30mm，鋼號(hao)為12CrlMoV，彎(wan)曲(qu)半徑R為1300mm，彎(wan)曲(qu)角(jiao)度0為90°的彎(wan)管(guan)表(biao)示為：OD32...
a.不(bu)(bu)銹(xiu)鋼彎管(guan)表面不(bu)(bu)應(ying)有(you)(you)裂(lie)(lie)紋、折疊、重皮(pi)、凹陷(xian)、尖銳劃痕等(deng)缺(que)陷(xian)。表面以現裂(lie)(lie)紋、重皮(pi)等(deng)缺(que)陷(xian)，應(ying)逐步(bu)修磨直至缺(que)陷(xian)完全消除，修磨后的實(shi)際壁(bi)(bi)厚應(ying)符合14.3.2.6c條要求。b.不(bu)(bu)銹(xiu)鋼彎管(guan)不(bu)(bu)應(ying)有(you)(you)過燒組(zu)織，不(bu)(bu)應(ying)出現晶間裂(lie)(lie)紋。c. 不(bu)(bu)銹(xiu)鋼彎管(guan)任何一點的實(shi)測壁(bi)(bi)厚不(bu)(bu)應(ying)小于(yu)管(guan)系直管(guan)...
電(dian)(dian)站用(yong)不銹鋼(gang)(gang)彎(wan)(wan)(wan)管(guan)是用(yong)規定壁(bi)厚的(de)直(zhi)管(guan)，在規定加熱溫度條件下，按一定的(de)彎(wan)(wan)(wan)曲半徑熱彎(wan)(wan)(wan)成(cheng)形(xing)的(de)一種不銹鋼(gang)(gang)彎(wan)(wan)(wan)管(guan)，主(zhu)要用(yong)于(yu)(yu)電(dian)(dian)站主(zhu)蒸(zheng)汽(qi)(qi)、再(zai)熱蒸(zheng)汽(qi)(qi)、主(zhu)給(gei)水(shui)管(guan)道(dao)及一般鋼(gang)(gang)制汽(qi)(qi)水(shui)管(guan)道(dao)。 a.公稱壁(bi)厚大于(yu)(yu)19.0mm的(de)碳鋼(gang)(gang)管(guan)，若彎(wan)(wan)(wan)制溫度低(di)于(yu)(yu)900℃，彎(wan)(wan)(wan)后應(ying)對(dui)彎(wan)(wan)(wan)管(guan)進(jin)行回火熱處理。&...
