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山东无缝钢管厂 >> T91合金钢管 无缝钢管厂
T91合金钢管

T91合金钢管

T91HEJINGANGGUAN

T91HEJINGANGGUANSHIGANGGUANDEYIZHONG, T91GANGSHIMEIGUOGUOLIXIANGSHULINGSHIYANSHIHEMEIGUORANSHAOGONGCHENGGONGSIYEJINCAILIAOSHIYANSHIHEZUOYANZHIDEXINXINGMASHITINAIREGANG。TASHIZAI 121MoVGANGDEJICHUSHANGJIANGDIHANTANLIANG,YANGEXIANZHILIU、LINDEHANLIANG,TIANJIASHAOLIANGDEFAN、NIYUANSUJINXINGHEJINHUA。GENJUASTM213/A213M-85C,T91GANGDEHUAXUECHENGFENJIANBIAO1。YUT91GANGDUIYINGDEDEGUOGANGHAOWEIX10CrMoVNNb91,RIBENGANGHAOWEIHCM95,FAGUOZEWEITUZ10CDVNb0901。BIAO1 T91GANGDEHUAXUECHENGFEN%

T91合金钢管元素 含量  C 0.08-0.12

  Mn 0.30-0.60

  P ≤0.02

  S ≤0.01

  Si 0.20-0.50

  Cr 8.00-9.50

  Mo 0.85-1.05

  V 0.18-0.25

  Nb 0.06-0.10

  N 0.03-0.07

  Ni ≤0.40

  T91GANGZHONGGEHEJINYUANSUFENBIEQIDAOGURONGQIANGHUA、MISANQIANGHUAHETIGAOGANGDEKANGYANGHUAXING、KANGFUSHIXINGNENG,JUTIFENXIRUXIA。

  ①TANSHIGANGZHONGGURONGQIANGHUAZUOYONGZUIMINGXIANDEYUANSU,SUIHANTANLIANGDEZENGJIA,GANGDEDUANSHIQIANGDUSHANGSHENG,SUXING、RENXINGXIAJIANG,DUIT91ZHEILEIMASHITIGANGERYAN,HANTANLIANGDESHANGSHENGHUIJIAKUAITANHUAWUQIUHUAHEJUJISUDU,JIASUHEJINYUANSUDEZAIFENPEI,JIANGDIGANGDEHANJIEXING、NAISHIXINGHEKANGYANGHUAXING,GUNAIREGANGYIBANDOUXIWANGJIANGDIHANTANLIANG,DANHANTANTAIDI,GANGDEQIANGDUJIANGJIANGDI。T91GANGYU12Cr1MoVGANGXIANGBI,HANTANLIANGJIANGDI20%,ZHEISHIZONGHEKAOLVSHANGSHUYINSUDEYINGXIANGERJUEDINGDE。

  ②T91GANGZHONGHANWEILIANGDAN,DANDEZUOYONGTIXIANZAILIANGGEFANGMIAN。YIFANGMIANQIGURONGQIANGHUAZUOYONG,CHANGWENXIADANZAIGANGZHONGDERONGJIEDUHENXIAO,T91GANGHANHOUREYINGXIANGQUZAIHANJIEJIAREHEHANHOURECHULIGUOCHENGZHONG,JIANGXIANHOUCHUXIANVNDEGURONGHEXICHUGUOCHENG:HANJIEJIARESHIREYINGXIANGQUNEIYIXINGCHENGDEAOSHITIZUZHIYOUYUVNDERONGRU,DANHANLIANGZENGJIA,CIHOUCHANGWENZUZHIZHONGDEGUOBAOHECHENGDUTIGAO,ZAISUIHOUDEHANHOURECHULIZHONGYOUXIXIAODEVNXICHU,ZHEIZENGJIALEZUZHIWENDINGXING,TIGAOLEREYINGXIANGQUDECHIJIUQIANGDUZHI。LINGYIFANGMIAN,T91GANGZHONGHAIHANYOUSHAOLIANGA1,DANNENGYUQIXINGCHENGA1N,A1NZAI1 100℃YISHANGCAIDALIANGRONGRUJITI,ZAIJIAODIWENDUXIAYOUZHONGXINXICHU,NENGQIDAOJIAOHAODEMISANQIANGHUAXIAOGUO。

  ③JIARUGEZHUYAOSHITIGAONAIREGANGDEKANGYANGHUAXING、KANGFUSHINENGLI,HANGELIANGXIAOYU5%SHI,600℃KAISHIJULIEYANGHUA,ERHANGELIANGDA5%SHIJIUJUYOULIANGHAODEKANGYANGHUAXING。12Cr1MoVGANGZAI580℃YIXIAJUYOULIANGHAODEKANGYANGHUAXING,FUSHISHENDUWEI0.05 mm/a,600℃SHIXINGNENGKAISHIBIANCHA,FUSHISHENDUWEI0.13 mm/a。T91HANGELIANGTIGAODAO9%ZUOYOU,SHIYONGWENDUNENGDADAO650℃,ZHUYAOCUOSHIJIUSHISHIJITIZHONGRONGYOUGENGDUODEGE。

  ④FANYUNIDOUSHIQIANGTANHUAWUXINGCHENGYUANSU,JIARUHOUNENGYUTANXINGCHENGXIXIAOERWENDINGDEHEJINTANHUAWU,YOUHENQIANGDEMISANQIANGHUAXIAOGUO。

  ⑤JIARUMUZHUYAOSHIWEILETIGAOGANGDEREQIANGXING,QIDAOGURONGQIANGHUADEZUOYONG。

  2.2 RECHULIGONGYI

  T91DEZUIZHONGRECHULIWEIZHENGHUO+GAOWENHUIHUO,ZHENGHUOWENDUWEI1040℃,BAOWENSHIJIANBUSHAOYU10 min,HUIHUOWENDUWEI730~780℃,BAOWENSHIJIANBUSHAOYU1h,ZUIZHONGRECHULIHOUDEZUZHIWEIHUIHUOMASHITI。

  2.3 JIXIEXINGNENG

  T91GANGDECHANGWENKANGLAQIANGDU≥585 MPa,CHANGWENQUFUQIANGDU≥415 MPa,YINGDU≤250 HB,SHENZHANGLV(50 mmBIAOJUDEBIAOZHUNYUANXINGSHIYANG)≥20%,XUYONGYINGLIZHI〔σ]650℃=30 MPa。

  2.4 HANJIEXINGNENG

  ANZHAOGUOJIHANJIEXUEHUITUIJIANDETANDANGLIANGGONGSHISUANDET91DETANDANGLIANGWEI

  KEJIANT91DEHANJIEXINGJIAOCHA。

3 T91焊接时存在的问题

  3.1 热影响区淬硬组织的产生  

CONGTU1KEYIKANCHU,T91DELINJIELENGQUESUDUDI,AOSHITIWENDINGXINGHENDA,LENGQUESHIBUYIFASHENGZHENGCHANGDEZHUGUANGTIZHUANBIAN,CONGERLENGQUEDAOJIAODIWENDUSHIFASHENGLEMASHITIZHUANBIAN。ZHENGYOUYUCI,T91DECUIYINGHELENGLIEQINGXIANGHENDA。

  YOUYUREYINGXIANGQUDEGEZHONGZUZHIJUYOUBUTONGDEMIDU、PENGZHANGXISHUHEBUTONGDEJINGGEXINGSHI,ZAIJIAREHELENGQUEGUOCHENGZHONGBIRANHUIBANYOUBUTONGDETIJIPENGZHANGHESHOUSUO;LINGYIFANGMIAN,YOUYUHANJIEJIAREJUYOUBUJUNYUNHEWENDUGAODETEDIAN,GUERT91HANJIEJIETOUNEIBUYINGLIHENDA。

  DUIYUT91,AOSHITISHIFENWENDING,YAOLENGQUEDAOJIAODIWENDU(YUE400℃)CAINENGBIANWEIMASHITI。CUDADEMASHITIZUZHICUIERYING,JIETOUYOUCHUZAIFUZAYINGLIZHUANGTAIXIA。TONGSHI,HANFENGLENGQUEGUOCHENGZHONGQINGYOUHANFENGXIANGJINFENGQUKUOSAN,QINGDECUNZAICUSHILEMASHITICUIHUA,QIZONGHEZUOYONGDEJIEGUO,HENRONGYIZAICUIYINGQUCHANSHENGLENGLIEWEN。

  3.2 热影响区晶粒长大  

HANJIEREXUNHUANDUIHANJIETOUREYINGXIANGQUDEJINGLIZHANGDAYOUZHONGDADEYINGXIANG,TEBIESHIJINLINJIAREWENDUDADAOZUIGAODERONGHEQU。DANGLENGQUESUDUJIAOXIAOSHI,ZAIHANJIEREYINGXIANGQUHUICHUXIANCUDADEKUAIZHUANGTIESUTIHETANHUAWUZUZHI,SHIGANGCAIDESUXINGMINGXIANXIAJIANG;LENGQUESUDUDASHI,YOUYUCHANSHENGLECUDADEMASHITIZUZHI,YEHUISHIHANJIEJIETOUSUXINGXIAJIANG。

  3.3 RUANHUACENGDECHANSHENG

  T91GANGZAIDIAOZHIZHUANGTAIXIAHANJIE,REYINGXIANGQUCHANSHENGRUANHUACENGBUKEBIMIAN,ERQIEBIZHUGUANGTINAIREGANGDERUANHUAGENGWEIYANZHONG。DANGYONGJIAREHELENGQUESUDUJUNJIAOHUANMANDEGUIFANSHI,RUANHUACHENGDUJIAODA。LINGWAI,RUANHUACENGDEKUANDUHETALIRONGHEXIANDEJULI,BUJINYUHANJIEDEJIARETIAOJIANJITEDIANYOUGUAN,HAIYUYURE、HANHOURECHULIDENGYOUGUAN。HAERBINGUOLUCHANGCENGZUOGUOSHIYANDECHUT91HANJIEREYINGXIANGQUYINGDUQUXIAN,JIANTU2。

  3.4 应力腐蚀裂纹  

T91GANGZAIHANHOURECHULIZHIQIAN,LENGQUEWENDUYIBANBUDIYU100℃,RUGUOZAISHIWENXIALENGQUE,ERHUANJINGYOUBIJIAOCHAOSHISHI,RONGYICHUXIANYINGLIFUSHILIEWEN。DEGUOGUIDING:ZAIHANHOURECHULIZHIQIANBIXULENGQUEZHI150℃YIXIA。ZAIGONGJIANJIAOHOU、YOUJIAOHANFENGCUNZAIJIJIHECHICUNBUHAODEQINGKUANGXIA,LENGQUEWENDUBUDIYU100℃。RUGUOZAISHIWENXIALENGQUE,YANJINCHAOSHI,FOUZERONGYICHANSHENGYINGLIFUSHILIEWEN。

4 T91钢的焊接工艺

  4.1 预热温度的选择  

T91GANGDEMsDIANYUEWEI400℃,YUREWENDUYIBANXUANZAI200~250℃。YUREWENDUBUNENGTAIGAO,FOUZEJIETOULENGQUESUDUJIANGDI,KENENGZAIHANJIEJIETOUZHONGYINQIJINGJIECHUTANHUAWUXICHUHEXINGCHENGTIESUTIZUZHI,CONGERDADAJIANGDIGAIGANGCAIHANJIEJIETOUZAISHIWENSHIDECHONGJIRENXING。YUREWENDUDEXIAXIANCONGHAERBINGUOLUCHANGSUOZUOGUODECHAXIAOSHIYANKEDEDAOHENHAODESHUOMING。

  CHAXIAOSHIBANGCAIYONGT91GANG,ZHIJING8 mm,SHEN0.5 mm,DIBANCAIYONG13CrMoGANG,HOU20 mm,SHIYANZAIBUYURE、YURE150℃、YURE200℃、YURE250℃TIAOJIANXIAJINXING。HANTIAOCAIYONGJ707。HANJIEDIANLIUWEI165~170 A,DIANHUDIANYAWEI21~267 V,SHIYANJIEGUORUBIAO2SUOSHI。

  BIAO2 T91CHAXIAOSHIYANJIEGUO

  SHIYAN

  TIAOJIAN SHIYANG

  HAO YINGLISHUIPING

  /MPa DUANLIESHIJIAN

  /min

  BUYURE 1 303.8 9 9

  2 186 8 237

  3 176.4 8.3 1440WEIDUAN

  YURE150℃ 4 421.4 8.1 1260

  5 354.8 120WEIDUAN

  YURE200℃ 6 465.2 8.6 1440WEIDUAN

  7 482.7 8.1 438

  8 539 7.9 313

  YURE250℃ 9 539 8.2 1440WEIDUAN

  10 600 8.0 1440WEIDUAN

  YOUSHANGSHUSHIYANJIEGUOZHI,ZAIBUYURETIAOJIANXIA,T91GANGHANJIEJIETOUDELINJIEYINGLIWEI176.4 MPa;YURE150℃SHI,LINJIEYINGLIWEI354.8 MPa,WEIT91GANGCHANGWENQUFUJIXIAN415 MPaDE85.4%;YURE200℃YISHANGSHI,LINJIEYINGLIDAYU460 MPa,CHAOGUOLET91GANGCHANGWENQUFUJIXIAN。YOUCI,WEIBIMIANT91GANGHANJIESHICHANSHENGLENGLIEWEN,YUREWENDUBIXUBUDIYU200℃,DEGUOGUIDINGYUREWENDUWEI180~250℃,MEIGUOCEGONGSIGUIDINGYUREWENDUWEI120~205℃。

  4.2 CENGJIANWENDUDEXUANZE

  CENGJIANWENDUBUDEDIYUYUREWENDUXIAXIAN,DANRUTONGYUREWENDUDEXUANQUYIYANG,CENGJIANWENDUYEBUNENGGUOGAO。T91HANJIESHICENGJIANWENDUYIBANKONGZHIZAI200~300℃。FAGUOGUIDING:CENGJIANWENDUBUCHAOGUO300℃。MEIGUOGUIDING:CENGJIANWENDUKEWEIYU170~230℃ZHIJIAN。

  4.3 HANHOURECHULIQISHIWENDUDEXUANZE

  T91YAOQIUHANHOULENGQUEDAODIYUMsDIANYIXIABINGBAOCHIYIDINGSHIJIANZAIJINXINGHUIHUOCHULI,HANHOULENGQUESUDUWEI80~100℃/h。RUGUOWEIJINGBAOWEN,JIETOUDEAOSHITIZUZHIKENENGMEIYOUWANQUANZHUANBIAN,HUIHUOJIAREHUICUSHITANHUAWUYANAOSHITIJINGJIECHENDIAN,ZHEIYANGDEZUZHIHENCUI。DANSHIT91HANHOUYEBUYUNXULENGQUEDAOSHIWENZAIJINXINGHUIHUO,YINWEIQIHANJIEJIETOULENGQUEDAOSHIWENSHIJIUYOUCHANSHENGLENGLIEWENDEWEIXIAN。DUIYUT91LAISHUO,ZUIJIAQISHIWENDUWEI100~150℃,BINGBAOWEN1h,KEJIBENQUEBAOZUZHIZHUANBIANWANBI。

  4.4 HUIHUOWENDU、HENGWENSHIJIAN、HUIHUOLENGQUESUDUDEXUANZE

  T91GANGLENGLIEQINGXIANGJIAODA,ZAIYIDINGTIAOJIANXIA,RONGYICHANSHENGYANCHILIEWEN,GUHANJIEJIETOUBIXUZAIHANHOU24 hNEIJINXINGHUIHUOCHULI。T91HANHOUZHUANGTAIDEZUZHIWEIBANTIAOZHUANGMASHITI,JINGGUOHUIHUOKEBIANWEIHUIHUOMASHITI,QIXINGNENGJIAOBANTIAOZHUANGMASHITIYOUYUE。HUIHUOWENDUPIANDISHI,HUIHUOXIAOGUOBUMINGXIAN,HANFENGJINSHURONGYISHIXIAOERCUIHUA;HUIHUOWENDUGUOGAO(CHAOGUOAC1XIAN),JIETOUYOUKENENGZAICIAOSHITIHUA,BINGZAISUIHOUDELENGQUEGUOCHENGZHONGZHONGXINCUIYING。TONGSHI,RUBENWENZAIQIANMIANSUOSHU,HUIHUOWENDUDEQUEDINGHAIYAOKAOLVJIETOURUANHUACENGDEYINGXIANG。YIBANERYAN,T91HUIHUOWENDUWEI730~780℃。

  T91HANHOUHUIHUOHENGWENSHIJIANBUSHAOYU1 h,CAINENGBAOZHENGQIZUZHIWANQUANZHUANBIANWEIHUIHUOMASHITI。

  WEILEJIANGDIT91GANGHANJIEJIETOUDECANYUYINGLI,BIXUKONGZHIQILENGQUESUDUXIAOYU5 ℃/min。T91GANGDEHANJIEGONGYIKEYONGTU3BIAOSHI。

  ①YURE200~250 ℃;②HANJIE,CENGJIANWENDU200~300 ℃;③HANHOULENGQUE,SUDUWEI 80~100 ℃/h;④100~150 ℃BAOWEN1 h;⑤730~780 ℃HUIHUO1 h;⑥YIBUDAYU5 ℃/minSUDULENGQUE

  5 T91GANGZAIGUANGDONGSHENGNEIHUODIANCHANGYINGYONGSHILI

  GUANGDONGSHENGDIANLIJUDIYIHANJIEPEIXUNZHONGXINCENGZUOGUOΦ42 mm×5mmDET91XIAOJINGGUANDUIJIEDEHANJIEGONGYIPINGDING。CAIQUDEYUREWENDUWEI200℃,HANHOULENGQUEDAO150℃,BAOWEN1hHOUJINXINGHUIHUO,HUIHUOWENDUWEI750~780℃,BAOWEN1h,SHENGJIANGWENSUDUJUNXIAOYU5℃/min。HANHOUDUISHIYANGJINXINGWAIGUANJIANCHA、DUANKOUJIANCHA、WUSUNJIANCE、LASHENHEWANQUSHIYAN,JIEGUOJUNHEGE,ZHEIYESHUOMINGSHANGSHUHANJIEGONGYISHIXINGZHIYOUXIAODE。

  SHANGSHUHANJIEGONGYIYICHENGGONGYINGYONGZAISHAJIAOACHANG、MEIXIANDIANCHANGGAOWENZAIREQIWAIQUAN。T91GANGZAIZHEIXIEDIANCHANGYINGYONGHOU,YOUYUCHAOWENDENGZAOCHENGDESHIGUPINLVDADAJIANGDI。

  6 JIELUN

  ①T91GANGKAOHEJINHUAYUANLI,YOUQISHITIANJIALESHAOLIANGNI、FANDENGWEILIANGYUANSU,GAOWENQIANGDU、KANGYANGHUAXINGJIAO12 Cr1MoVGANGYOUJIAODADETIGAO,DANQIHANJIEXINGNENGJIAOCHA。

  ②CHAXIAOSHIYANBIAOMING,T91GANGYOUJIAODALENGLIEQINGXIANG,XUANQUYURE200~250 ℃,CENGJIANWENDU200~300 ℃,KEYOUXIAOFANGZHILENGLIEWENCHANSHENG。

  ③T91HANHOURECHULIQIAN,BIXULENGQUEZHI100~150 ℃,BAOWEN1 h;HUIHUOWENDU730~780 ℃,BAOWENSHIJIANBUSHAOYU1 h。

  ④YISHANGHANJIEGONGYIYIYINGYONGYU200 MW、300MW GUOLUZHIZAOSHENGCHANSHIJIANZHONG,QUDEMANYIXIAOGUO,BINGHUODEJIAODADEJINGJIXIAOYI。 GANGGUANSHIYIZHONGJUYOUZHONGKONGJIEMIAN、ZHOUBIANMEIYOUJIEFENGDEZHANGTIAOGANGCAI。GANGGUANJUYOUZHONGKONGJIEMIAN,DALIANGYONGZUOSHUSONGLIUTIDEGUANDAO,RUSHUSONGSHIYOU、TIANRANQI、MEIQI、SHUIJIMOUXIEGUTIWULIAODEGUANDAODENG。GANGGUANYUYUANGANGDENGSHIXINGANGCAIXIANGBI,ZAIKANGWANKANGNIUQIANGDUXIANGTONGSHI,ZHONGLIANGJIAOQING,SHIYIZHONGJINGJIJIEMIANGANGCAI,GUANGFANYONGYUZHIZAOJIEGOUJIANHEJIXIELINGJIAN,RUSHIYOUZUANGAN、QICHECHUANDONGZHOU、ZIXINGCHEJIAYIJIJIANZHUSHIGONGZHONGYONGDEGANGJIAOSHOUJIADENG。YONGGANGGUANZHIZAOHUANXINGLINGJIAN,KETIGAOCAILIAOLIYONGLV,JIANHUAZHIZAOGONGXU,JIEYUECAILIAOHEJIAGONGGONGSHI,RUGUNDONGZHOUCHENGTAOQUAN、QIANJINDINGTAODENG,MUQIANYIGUANGFANYONGGANGGUANLAIZHIZAO。GANGGUANHAISHIGEZHONGCHANGGUIWUQIBUKEQUESHAODECAILIAO,QIANGGUAN、PAOTONGDENGDOUYAOGANGGUANLAIZHIZAO。GANGGUANANHENGJIEMIANJIXINGZHUANGDEBUTONGKEFENWEIYUANGUANHEYIXINGGUAN。YOUYUZAIZHOUZHANGXIANGDENGDETIAOJIANXIA,YUANMIANJIZUIDA,YONGYUANXINGGUANKEYISHUSONGGENGDUODELIUTI。CIWAI,YUANHUANJIEMIANZAICHENGSHOUNEIBUHUOWAIBUJINGXIANGYALISHI,SHOULIJIAOJUNYUN,YINCI,JUEDADUOSHUGANGGUANSHIYUANGUAN。 HEJINGUANZHONGLIANGJISUANGONGSHI:[(WAIJING-BIHOU)*BIHOU]*0.02466=kg/MI(MEIMIDEZHONGLIANG)

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