山西快乐十分APP下载

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沪工阀门

上海沪工阀门厂(集团)有限公司

ZHAIYAO:JIESHAOLEYIZHONGPINGJIAQUANHANJIEFATIGUANXIANQIUFAHANJIEJIETOUANQUANXINGDEFANGFA,GENJUHANJIEJIETOUDUANLIERENDU CTOD SHIYANZHI,DUIMAIHUHANHANJIEJIETOUMIANHANHOURECHULIDEKENENGXINGJINXINGANQUANPINGDING。WEIDAXINGQUANHANJIEFATIGUANXIANQIUFAZHIZAOTIGONGKEXUEYIJU。

关链词全焊接阀休管线球阀焊接接头免焊后热处理裂纹尖端张开位移(CTOD)

一、前言

石油、天然气输送管道是一条能源供给线,线上的紧急切断阀为全焊接阀体管线球阀,要求 30 年以上的无维护使用寿命。但服役条件却十分恶劣:从北极圈到赤道,从高原到海底,从沙漠到荒原;其间穿过地震带、沼泽地、冻土层、江河、湖泊和山坡;有架设的,有直埋地下的;在野外,无人操作,维护困难.既承受管道内部压力,又承受外部载荷,如地基沉降、泥石流和地震,管道温度应力以及地下水的电位腐蚀、应力腐蚀。

QUANHANJIEFATIDEHANJIEJIETOUYIBANJUNSHEJIWEIZHAIJIANXIHOUBIMAIHUHAN,LIRU Class600,20in DEQIUFA,HANJIEBIHOUWEI 44mm,C1ass900,48in DEQIUFA,HANJIEBIHOUWEI 140mm。WEICHAODAHOUDUTONGZHUANGHANJIEJIETOU。HOUBIDUOCENGHANJIEGUOCHENGSHIJINSHUCAILIAODUOCIFANFUJIAREHELENGQUEDEGUOCHENG,DAOZHIHANJIEJIETOUZUZHIDEBUJUNYUNXINGHELIEZHIHUA,CHANSHENGJIAOGAODECANLIUYINGLI,SHENZHICHANSHENGHANJIEQUEXIAN。HANJIEYOUSHIGAICHANPINZUZHUANGHOUDEZUIHOUYIDAOGONGXU,FAQIANGNEIYOUFEIJINSHUMIFENGCAILIAOXIANGJIAOHEJUSIFUYIXISULIAO,BUNENGJINXINGHANHOURECHULI。

山西快乐十分APP下载 LINGWAI,ZAIFATIHANJIEJIETOUSHEJIZHONG,WEIDUIZHUNHEDINGWEI,ZAIHANFENGGENBUCUNZAIYITIAOHUANXINGDEZHUANGPEIXIFENG,ZHEIYIXIFENGZAINEIBUYALIHEWAIBUHEZAIZUOYONGXIA,JIANGCHANSHENGJIBEIGANZHENGCHANGGONGZUOYINGLIDEYINGLIJIZHONG,TONGYANGSHIGONGCHENGSHIMENNANYUCHULI。

因此,阀体焊接接头的根部缝隙的应力集中,残留应力,组织劣质化成为阀体结构中的薄弱环节,为国内外阀门山西快乐十分APP下载界关注,但又未见有任何解决这一问题的相关报道,成为这个产品结构边界完整性的一个隐患。

山西快乐十分APP下载 JUMEIGUO 20 SHIJI 90 NIANDAIDETONGJI,HANJIEJIETOUSHIXIAOERYINQIJINGJISUNSHIDADAOGUOMINJINGJIDE 5%。ZAIDALIANGDEDUIJINSHUCAILIAOHANJIEJIEGOUSHIXIAOSHIGUZHONG,QIFENXIJIEGUOBIAOMING,DABUFENHANJIEJIETOUSHIXIAOSHIJINSHUCAILIAORENXINGBUZUZAOCHENGDE。JIETOUZHONGJINSHUCAILIAOZAIHANJIEGUOCHENGZHONGKUAISURONGHUAYOUKUAISUNINGGU,SHOUDAOZHOUBIANJINSHUYUESHULIDEZUOYONGCHANSHENGJIAODADECANLIUYINGLI,ERJINSHUCAILIAOYOUDUOCIFANFUJINGLIRONGHUA—NINGGUDEXIANGBIANGUOCHENG,XINGCHENGCUDADEZHUZHUANGJINGLI,BINGCHANSHENGXICHU、JIAZA、QIKONGHEWEILIEWENDENGQUEXIAN,SHICAILIAODECHUXINGMINGXIANJIANGDI。YOUGANSHIGUDEFUZAXING,YUYANMOUYIJIEGOUYINMOUZHONGYUANYINSHIXIAOSHIKUNNANDE,DANCONGTONGJIXUEJIAODUYAN,DABUFENHANJIEJIEGOUDEPOHUAISHIYOUGANCAILIAODERENXINGBUZU,YOUWEIXIAODEQUEXIANYINFAPILAOLIEWEN,BINGBUDUANKUOZHANZAOCHENGDE。

山西快乐十分APP下载 YOUYUHANHOUJINSHUCAILIAODEBUJUNYUNXING,LIEZHIHUAHEQUEXIAN,CAILIAOXUEZHONGDESANGEJIBENJIASHE;LIANXUXINGJIASHE、JUNYUNXINGJIASHEHEGEXIANGTONGXINGJIASHEYIBUMANZU,ZHEIJIUXUYAOYINGYONGDUANLIELIXUEDELILUN。DUANLIELIXUEDERENWUJIUSHICONGGOUJIANZHONGCUNZAIHONGGUANDEWEILIEWENDESHISHICHUFA,YONGXIANDANXINGDUANLIELIXUEHEDANSUXINGDUANLIELIXUEDEFENXIFANGFALAIJIEJUEGOUJIANDELIEWENWENTI。JIBAGOUJIANZHONGLIEWENDAXIAO、GONGZUOYINGLIHECAILIAODIKANGLIEWENDENENGLI(JILIEWENJIANDUANZHANGKAIWEIYI CTOD DUANLIERENDUZHI)DINGLIANGDILIANXIQILAI,DUIHANYOUWEILIEWENDEGOUJIANHEZUZHILIEZHIHUADEJIETOU,JINXINGANQUANXINGHESHOUMINGSHIYANFENXIYUPINGGU。

断裂力学学科的发展,已定义一种“裂纹尖端张开位移值”(Crack Tip opening Displacement,CTOD),它能准确地评估焊接接头的韧性。1991 年,英国焊接研究所提出标准 BS7448 Part1,给出了金属材料的临界 CTOD、J 积分和 KIC 的试验方法。1997 年,又提出该标谁的第二部分 BS7448 Part Ⅱ《确定焊缝金属材料 KIC山西快乐十分APP下载,临界 CTOD 和 J 积分的方法》,针对焊接接头中各区域性能不均匀性和存在残留应力等特征,对 BS7448 Part1 进行了补充规定,这就是目前国际上被工程界普遍认可的,测定焊接接头 CTOD 断裂韧度值的试验标准。

SUIHOU,2000 NIANYINGGUOBIAOZHUNJUFABIAO BS7910-1999《JINSHUJIEGOUZHONGQUEXIANYANSHOUPINGDINGFANGFADAOZE》,TACAIYONGJIYUDUANLIELIXUEYUANLIDESHIXIAOPINGDINGTU(FAD)LAIJINXINGPINGDINGJINSHUJIEGOUZHONGDEQUEXIAN。MEIGUOSHIYOUXUEHUIGENJU BS7448 Part Ⅱ DESHIYANFANGFA,ZAI API 1104《GUANDAOHANJIEYUXIANGGUANSHESHI》DEBIAOSHEIZHONGZENGJIALEFULU A,TICHUGUANDAOHANJIEJIETOU CTOD ZHIDEYANSHOUBIAOSHEI。NUOWEICHUANJISHE DNV-OS-401 ZAIGONGCHENGXIANGMUDEYANSHOUPINGGUZHONGYIDUI CTOD ZHITICHUYIGEPINGGUYANSHOUBIAOZHUN,YIBIANDUIDAXINGJIEGOUJIANJINXINGHANHOUMIANRECHULIJINXINGGONGCHENGPINGGU。CTOD ZHISHIJISHANGSHIYUHANJIEMUCAI、HANSI、HANJI、HANJIEGONGYI、HANJIEFANGFA、HANFENGJIEGOUCHICUNHEHOUDUDENGYINSUYOUGUAN,SHIYIGECAILIAODIKANGLIEWENNENGLIDEZONGHECANSHUHEXINGNENGZHIBIAO。

GUONEIYIYOUDALIANGHANJIEGONGZUOZHEYINGYONG CTOD DUANLIERENDUSHIYANPINGDINGHANFENGANQUANXING。HAIYANGSHIYOUGONGCHENGGUFENYOUXIANGONGSIZAIHAIYANGSHIYOUPINGTAIJIANZAOZHONG,YINGYONG CTOD DUANLIERENDUSHIYANPINGJIAHANFENGDEDIWENDUANLIERENDU,SHIYANJIEGUOBIAOMING,WEIJINGHANHOURECHULIDE EH36 GANGHANTIAODIANHUHAN、DANSIMAIHUHANHESHUANGSIMAIHUHANDESANZHONGHANJIEGONGYIHANJIEJIETOUHEREYINGXIANGQU,DIWENXIAJUEDABUFENSHIYANGDEDUANLIERENDUZHISHIHEGEDE,PINGJIAHANJIEJIETOUKEYIZAIBUJINXINGHANHOURECHULIDEQINGKUANGXIASHIYONG,SUODUANHAIYANGPINGTAIJIEGOUDEZHIZAOZHOUQI,JIANGDIZHIZAOCHENGBEN,ZHENGGESHIYANGONGZUODEDAOMEIGUO Philips SHIYOUGONGSIHE DNV NUOWEICHUANJISHEDEHAOPING。

TIANJINDAXUEANZHAOOUZHOUGONGTONGTIJIEGOUWANZHENGXINGDEPINGDINGFANGFA(SINAP)DEYAOQIU,YINGYONG CTOD SHIYANFANGFA,DUIHAIDIYOUQIGUANDAOANQUANXINGJINXINGPINGGU,GENJUSHIYANJIEGUOZUOCHUKENDINGJIELUN。

山西快乐十分APP下载 WUHANLIGONGDAXUEHEZHONGGUOCHUANJISHETONGGUO CTOD ZHI,PINGDINGCONGERZHONGBUTONGDEWURESHIXIAOCHULIDEHANJIEGONGYIZHONGQUEDINGCHUZUIJIAHANJIEGONGYI。

山西快乐十分APP下载 TIANJINDAXUEGENJU CTOD(LIEWENJIANDUANZHANGKAIWEIYI)SHIYANJIEGUO,XIANHOUCAIYONGYINGGUOBIAOZHUNXIEHUITICHUDE BS7910 BIAOZHUNHEOUGONGTITICHUDEJIEGOUWANZHENGXINGPINGDINGFANGFA SINTAP,ZHENDUI EH36 GUANXIANGANGHANJIEJIETOUHANZHICHUDEBIAOMIANLIEWENJINXINGPINGDING。

QINGHUADAXUEDUICHANGYONGQIAOLIANGGANG Q370qE HE Q345qD GANGJINXING CTOD SHIYAN,FENBIEJISUANCAILIAOZAICUIDUAN、RENCUIPOHUAIHERENXINGPOHUAISHIDE CTOD ZHI,ZUOWEIXIUDINGCHANGGUICHONGJIRENDUBIAOZHUNDEYIJU。

山西快乐十分APP下载 QINGHUADAXUETONGLIGEHEZHONGGUOSHIYOUTIANRANQIGUANDAOKEXUEYANJIUYUANBAISHIWU、LIUFANGNENG,JIANLIYUCEGAOQIANGDUGUANXIANGANG(X70)HANJIEJIETOUXINGNENGCANSHULIEWENJIANDUANZHANGKAIWEIYI(CTOD)DE BP SHENJINGWANGLUOMOXING,WEIHANJIEGONGYICANSHUYOUHUATIGONGYOUXIAOSHOUDUAN。

山西快乐十分APP下载 YI Class600,20in QUANHANJIEFATIGUANXIANQIUFA 44mm HOUYUANTONGZHUANGFATIHANJIEJIETOUWEILI,GENJU API 1104 FULU A HE DNV-OS-401 DEBIAOHUAIHE CTOD DESHIYANJIEGUO,PINGDINGGAIMAIHUHANHANJIEJIETOUJUBEIKEMIANHANHOURECHULIDETIAOJIANSHICHONGFENDE。

(全文未完,请看下一篇《全焊接阀体管线球阀焊接接头安全评估(影响阀体焊缝安全性的因素)》)


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下一篇:全焊接阀体管线球阀焊接接头安全评估(影响阀体焊缝安全性的因素)
上一篇:长输管线全焊接球阀焊接工艺慨述


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