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42CrMo厚壁钢管能不能焊接

文章出处:http://bagsbig.com 发表时间:2018/11/19 16:30:08 点击:95

42CrMo厚壁钢管能不能焊接


42CrMo厚壁钢管,把钢管外径和壁厚之比小于20的钢管称为厚壁钢管。主要用做石油地质钻探管、石油化工用的裂化管、锅炉管、轴承管以及汽车、拖拉机、航空用高精度结构管等。


JIANJIE

HOUBIGANGGUANYINGWEN(Thick wall steel pipe)HEBOBIGANGGUANDEZUIDAQUBIEZAIYUGANGGUANBIDEHOUDU,YIBANSHUOLAI,BOBIGANGGUANDOUSHILENGBAJISHU,

42CrMo厚壁钢管一般使用热轧技术,如果是用度量单位来区分的话,那么,一般认为,壁厚/管径等于0.05是厚壁钢管和薄壁钢管的分水岭,壁厚/管径小于0.05的是薄壁钢管,大于的是厚壁钢管,在用途上来说,薄壁钢管多用于管道上。而厚壁钢管多应用于空心零件的坯料。承压以及重要管道上使用。

YONGTU

42CrMo厚壁钢管主要应用于自来水工程、石化工业、化学工业、电力工业、农业灌溉、城市建设。作液体输送用:给水、排水。作气体输送用:煤气、蒸气、液化石油气。作结构用:作打桩管、作桥梁;码头、道路、建筑结构用管等。

CAIZHI

GUONEICHANGYONGCAIZHIWEI:10# 20mn 42crmo 36CrMo 40Cr 20Cr 15CrMo 12Cr1Mov Q235A,Q235B、0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb、16Mn、20#、45#,Q345、L245、L290、X42、X46、X70、X80。

QIANGDUDENGJI

1)YIGONGCHENGYALIBIAOSHIQIDENGJIHUOGUIDINGYALIYIWENDUEDINGZHIDEGUANJIAN,YINGANBIAOZHUNGUIDINGDEYALIYIWENDUEDINGZHIZUOWEIQISHIYONGJIZHUN,RUGB/T 17185;

2)BIAOZHUNZHONGJINGUIDINGLEYUQIXIANGLIANZHIGUANDEGONGCHENGHOUDUDEGUANJIAN,ANBIAOZHUNGUIDINGDEJIZHUNGUANZIDENGJIQUEDINGQISHIYONGYALIYIWENDUEDINGZHI,RUGB14383~GB14626。

3)BIAOZHUNZHONGJINGUIDINGWAIXINGCHICUNDEGUANJIAN,RUGB12459、GB 13401,YINGTONGGUOYANZHENGXINGSHIYANLAIQUEDINGQICHENGYAQIANGDU。

4)QITA,YINGANYOUGUANGUIDINGJINXINGYALISHEJIHUOJIEXIFENXIDENGFANGFALAIQUEDINGQISHIYONGJIZHUN。CIWAI,GUANJIANQIANGDUDENGJIDEQUEDING,HAIYINGBUDIYUZHENGGEGUANDAOXITONGZAICAOZUOZHONGKENENGYUDAODEZUIYANKUGONGKUANGXIADEYALI。

HANJIEGONGYI

HANJIEFANGFA

焊接厚壁钢管首先清理干净焊口的油、漆、水、锈等,然后根据壁厚开坡口,厚的就开大一些,薄的就开小一些(角磨机),然后就是对品的缝隙,一般是焊条或焊丝直径的1- 1.5倍,如果坡口不小心开大了话可以适当留小一些。点固焊至少三点,一般四点比较好干活。焊接的时候应该一半一半焊接,起点最好超过最底点一公分左右,那样从对面好接头。如果钢管壁厚的话,应该分层,至少两层,第一层整圈焊完才可以焊第二层。

GONGYILIUCHENG

YUANGUANPI→JIARE→CHUANKONG→SANGUNXIEYA、LIANYAHUOJIYA→TUOGUAN→DINGJING(HUOJIANJING)→LENGQUE→JIAOZHI→SHUIYASHIYAN(HUOTANSHANG)→BIAOJI

HANFENGYUGAO

GANGGUANBIHOUBUDAYU 12.5mm SHI,HANFENGYUGAOBUDAYU 3.0mm;GANGGUANBIHOUDAYU 12.5mm SHI,HANFENGYUGAOBUDAYU 3.5mm。

WANQUDU

GONGCHENGWAIJINGBUDAYU 168.3mm DEGANGGUAN,YINGPINGZHIHUOANGONGXUSHUANGFANGXIE YIGUIDINGDEWANQUDUZHIBIAO;

GONGCHENGWAIJINGDAYU 168.3mm DEGANGGUAN,WANQUDUBUDAYUGANGGUANQUANZHANGDE 0.2%。

GUANDUANBIHOUDAYU4mmDEGANGGUAN,GUANDUANKEJIAGONGPOKOU 30°+5°0°,LIUGEN1.6mm±0.8mm,GUANDUANXIEDUXIAOYUHUODENGYU 5mm。

GONGCHENGGUIDING

42CrMo厚壁钢管实选用和使用的相应法规及各项规定

HOUBIGUANJIANZAISHIJIXUANYONGHUOSHIYONGSHI,SHOUXIANBIXUZUNXUNXIANGYINGFAGUIJIGUIFANNEIDEGEXIANGGUIDING,TEBIESHISHUSONGJIDUHUOGAODUWEIHAILIUTIJIEZHI、YIRANJIEZHIYIJIGAOYAQITIDENGGUANDAODECHANGHE。ZAIZHEIQIANTIXIA,ZHUYAOYIJUYONGTUHESHIYONGTIAOJIAN(YALI、WENDU、LIUTIJIEZHI)LAIQUEDINGGUANJIANDEZHONGLEI。XIAMIANZHUYAOLIECHULEXIANGGUANDEFAGUI/GUIFAN,JINGONGCANKAO。

1)TEZHONGSHEBEIANQUANJIANCHAFA;

2)TEZHONGSHEBEIANQUANJIANCHATIAOLILIE;

3)YALIGUANDAOANQUANGUANLIYUJIANCHAGUIDING;

4)TEZHONGSHEBEIZHILIANGJIANDUYUANQUANJIANCHAGUIDING;

5)TEZHONGSHEBEISHEJI/ZHIZAO/ANZHUANGJIANDUGUANLIGUIDING(NIDING);

6)YALIGUANDAOANQUANJISHUJIANCHAGUICHENG(NIDING);

7)GONGYEJINSHUGUANDAOANQUANJISHUGUIFAN(NIDING);

ANQUANYUJINGJI

SHIJIPEIGUANGONGCHENGZHONGSHIYONGDEGUANJIANDEJIEGOUXINGSHI,CHULESHANGSHUJIESHAODEYIWAI,HAIYOUQITADUOZHONGJIEGOUXINGSHIDEGUANJIAN,YONGYIMANZUGEZHONGBUTONGGONGKUANGTIAOJIAN、TEBIESHITESHUGONGKUANGDEYAOQIU。ZAIGONGCHENGSHEJIHUOXUANYONGSHI,GUANJIANDEQIANGDUDENGJIYUEGAO,ANQUANXINGYUEGAO,DANGONGCHENGDEFEIYONGCHENGBENYEYUEDA,HUIZAOCHENGBUBIYAODELANGFEI。

CONGJINGJIXIAOYISHANGKAOLV,ZAIMANZUGONGCHENGSHEJIYAOQIUDETONGSHI,JINKENENGJIANGDICHENGBEN,QUEWANGWANGRONGYIXINGCHENGXUANYONGDEGUANJIANZONGTISHANGCHUXIANSHAOLIANGDUOPINZHONGDEJIEGUO,CONGERBULIYUXIANCHANGSHIGONGCAILIAODEGUANLI、DIAOKONGYIJISHEJIBIANGENGXUYAODECAILIAODAIYONGDENG。 YINCI,GUANJIANDEXUANYONG,YINGZONGHEANQUANXINGHEJINGJIXING,JINKENENGJIANSHAOGUANJIANDEPINZHONGWEIYI。CIWAI,XIANCHANGSHIGONGDETIAOJIAN、SHIGONGDESHUIPING,GUANJIANDECAIGOUZHOUQIDENGYINSU,YEYINGZAIGUANJIANXUANYONGZHONGYINQIBIYAODEZHONGSHI。JUTIQINGKUANGXIA,YEYINGKAOLVCAIYONGJIAQIANGGUANJIETOU、XIEJIEWANGUANYIJIXIAOKOUJINGGUANZIDEXIANCHANGWANQUJIAGONGDENGDEKENENGXING。

TONGSHI,DUIYUGUANJIANSHENGCHANCHANGDESHENGCHANNENGLIHECHANPIN,SHICHANGGONGYINGQINGKUANGDELEJIEYEHENYOUBIYAO。

XIANYOUWENTI

1)GUONEIGUANJIANBIAOZHUNBUJIANQUAN、BUPEITAOGUANJIANBIAOZHUNYINGBAOKUOGUANJIANDEXINGSHICANSHUBIAOZHUNYUGUANJIANCAILIAOBIAOZHUN。DANCAILIAOBIAOZHUNZHONGHUOSHIGUIDINGBUQUAN,HUOSHIQUEFAZHURUTINGHUOYAOQIU、JIANYANJIZUPIGUIZE、ZHILIANGZHENGMINGDENGFANGMIANDEZHILIANGJISHUYAOQIU。GUANJIANCAILIAOBIAOZHUNPEITAOXINGCHA,WANGWANGCONGGEZIDELICHANG、JIAODU,ERBUSHICONGYALIGUANDAOZHENGGEBIAOZHUNTIXICHUFALAIZHIDING。GONGCHENGZHONGDEXUANYONG,GUANCAIBIAOZHUNYOU,DANWUXIANGYINGDEDUANJIANHUOZHUJIANBIAOZHUN。XIANSHISHIGUANJIANDUANJIANBIAOZHUNJIEYONGYALIRONGQIDEDUANJIANBIAOZHUN,MEIYOUKAOLVLIANGZHEDECHAYI,RUHANJIE、PAIPIANJIANYANDENGGUIDING。

2)42CrMo厚壁钢管标准水平千差万别,内容缺乏一致与系统性,以至衔接出现矛盾,造成使用上的不便。

3)WUGUANJIANDEXINGSHISHIYANBIAOZHUN,JINGB12459、GB13401BIAOZHUNZHONGGUIDINGLEGANGZHIDUIHANWUFENGGUANJIANHEGANGBANZHIDUIHANGUANJIANDEBAOPOSHIYANDEYALIJISUAN,QITABAOZHENGGUANJIANZHIZAOZHILIANGDEXINGSHISHIYANBIAOZHUNHUOZHIXINGBIAOZHUNMEIYOU。

JISUANFANGFA

LUOXUANGANGGUANDEMEIMILILUNZHONGLIANGJISUANGONGSHI

  LUOXUANGANGGUANJIAOHUOSHIFENWEIANSHIJIZHONGLIANGJIAOHUOHUOANLILUNZHONGLIANGJIAOHUO

  SHIJIZHONGLIANG--JIAOHUOSHI,QICHANPINZHONGLIANGSHIANCHENGZHONG(GUOBANG)ZHONGLIANGJIAOHUO;

  LILUNZHONGLIANG--JIAOHUOSHI,QICHANPINZHONGLIANGSHIANGANGCAIGONGCHENGCHICUNJISUANDECHUDEZHONGLIANG。QIJISUANGONGSHIRUXIA(YAOQIUANLILUNZHONGLIANGJIAOHUOZHE,XUZAIHETONGZHONGZHUMING):

  LUOXUANGANGGUANMEIMIDELILUNZHONGLIANG(GANGDEMIDUWEI7.85kg/dm3)JISUANGONGSHI:W=0.02466(D-S)S

  SHIZHONG:W--LUOXUANGANGGUANMEIMILILUNZHONGLIANG,kg/m;

  D--LUOXUANGANGGUANDEGONGCHENGWAIJING,mm;

  S--LUOXUANGANGGUANDEGONGCHENGBIHOU

WUFENGGANGGUANZHONGLIANGGONGSHI:[(WAIJING-BIHOU)*BIHOU]*0.02466=kg/MI(MEIMIDEZHONGLIANG)

BAOYANGWEIHU

42CrMoHOUBIGANGGUANZHILIANGDEGUANJIANYAOSHUBIHOUDEJUNYUNDU,HOUBIGANGGUANDEBIHOUDEBUDAOKONGZHIJIANGZHIJIEYINGXIANGGANGGUANZHILIANGHEYONGTU,HOUBIGANGGUAN,DAKOUJINGHOUBIGANGGUANYIBANYONGZAIGEZHONGJIXIEJIAGONG,HOUBILINGJIANJIAGONG,HOUBIGANGGUANDEGUANBIDEJUNYUNJIANGZHIJIEYINGXIANGHOUQIJIAGONGLINGJIANDEZHILIANG,HOUBIGANGGUANDEGUANBIDEBUDAOKONGZHI,SHIZHENGTIGANGGUANDEZHILIANGDEBUDAOYANGEBAGUAN。XUANZESHIYIDECHANGDIHEKUFANGBAOGUANHOUBIGANGGUANDECHANGDIHUOCANGKU,YINGXUANZEZAIQINGJIEGANJING、PAISHUITONGCHANGDEDIFANG,YUANLICHANSHENGYOUHAIQITIHUOFENCHENDECHANGKUANG。ZAICHANGDISHANGYAOQINGCHUZACAOJIYIQIEZAWU,BAOCHIHOUBIGANGGUANGANJING。ZAICANGKULIBUDEYUSUAN、JIAN、YAN、SHUINIDENGDUIHOUBIGANGGUANYOUQINSHIXINGDECAILIAODUIFANGZAIYIQI。BUTONGPINZHONGDEHOUBIGANGGUANYINGFENBIEDUIFANG,FANGZHIHUNXIAO,FANGZHIJIECHUFUSHI。DAXINGXINGGANG、GANGGUI、RUGANGBAN、DAKOUJINGHOUBIGANGGUAN、DUANJIANDENGKEYILUTIANDUIFANG。

ZHONGXIAOXINGXINGGANG、PANTIAO、GANGJIN、ZHONGKOUJINGHOUBIGANGGUAN、GANGSIJIGANGSISHENGDENG,KEZAITONGFENGLIANGHAODELIAOPENGNEICUNFANG,DANBIXUSHANGSHANXIADIAN。YIXIEXIAOXINGHOUBIGANGGUAN、BOGANGBAN、GANGDAI、GUIGANGPIAN、XIAOKOUJINGHUOBOBIHOUBIGANGGUAN、GEZHONGLENGYA、LENGBAHOUBIGANGGUANYIJIJIAGEGAO、YIFUSHIDEJINSHUZHIPIN,KECUNFANGRUKU。KUFANGYINGGENJUDILITIAOJIANXUANDING,YIBANCAIYONGPUTONGFENGBISHIKUFANG,JIYOUFANGDINGYOUWEIQIANG、MENCHUANGYANMI,SHEYOUTONGFENGZHUANGZHIDEKUFANG。KUFANGYAOQIUQINGTIANZHUYITONGFENG,YUTIANZHUYIGUANBIFANGCHAO,JINGCHANGBAOCHISHIYIDECHUCUNHUANJING。HELIDUIMA、XIANJINXIANFANGDUIMADEYUANZEYAOQIUSHIZAIMADUOWENGU、QUEBAOANQUANDETIAOJIANXIA,ZUODAOANPINZHONG、GUIGEMADUO,BUTONGPINZHONGDECAILIAOYAOFENBIEMADUO,FANGZHIHUNXIAOHEXIANGHUFUSHI,JINZHIZAIDUOWEIFUJINCUNFANGDUIHOUBIGANGGUANYOUFUSHIZUOYONGDEWUPIN,YUANZE.LUTIANDUIFANGDEXINGGANG,XIAMIANBIXUYOUMUDIANHUOTIAOSHI,DUOMIANLVEYOUQINGXIE,YILIPAISHUI,BINGZHUYICAILIAOANFANGPINGZHI,FANGZHIZAOCHENGWANQUBIANXING.DUIDUOGAODU,RENGONGZUOYEDEBUCHAOGUO1.2m,JIXIEZUOYEDEBUCHAOGUO1.5m,DUOKUANBUCHAOGUO2.5m.DUOYUDUOZHIJIANYINGLIUYOUYIDINGDETONGDAO,JIANCHADAOYIBANWEIO.5m,CHURUTONGDAOSHICAILIAODAXIAOHEYUNSHUJIXIEERDING,YIBANWEI1.5~2.Om.DUODIDIANGAO,RUOCANGKUWEICHAOYANGDESHUINIDIMIAN,DIANGAOO.1mJIKE;RUOWEINIDI,XUDIANGAOO.2~0.5m。RUOWEILUTIANCHANGDI,SHUINIDIMIANDIANGAOO·3~O·5m,SHANIMIANDIANGAO0.5~O.7m.LUTIANDUIFANGJIAOGANGHECAOGANGYINGFUFANG,JIKOUCHAOXIA,GONGZIGANGYINGLIFANG,HOUBIGANGGUANDEICAOMIANBUNENGCHAOSHANG,YIMIANJISHUISHENGXIU。


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