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螺旋钢管焊接气孔分类及解决方法

发表时间:2016年11月28日

  焊缝的好坏决定了螺旋钢管质量的优劣,一旦螺旋钢管焊缝产生气孔,那不仅影响管道焊缝致密性,造成管道泄漏,而且会成为腐蚀的诱发点,严重降低焊缝强度和韧性。一般来说焊剂中的水分、污物、氧化皮和铁屑,焊接的成份及覆盖厚度,钢板的表面质量以及钢板边板处理,焊接工艺及钢管成型工艺等都可能是焊缝产生气孔的原因。

  ZAIHANJIESHI,HANJIEWENDUGAO,ZESHIHANFENGGUOSHAO,XINGCHENGCHUANKONG,HANYOUSHILIANGDECaF2HESiO2SHI,HUIFANYINGXISHOUDALIANGDEH2,SHENGCHENGWENDINGXINGHENGAOQIEBURONGYUYETAIJINSHUDEHF,CONGERKEYIFANGZHIQINGQIKONGDEXINGCHENG;HANFENGDECHENGXINGXISHUGUOXIAO,HANFENGDEXINGZHUANGZHAIERSHEN,QITIHEJIAZAWUBURONGYIFUCHU,YIXINGCHENGQIKONGHEJIAZHA;LUOXUANGANGGUANGANGBANBANBIANYINGSHEZHITIEXIUHEMAOCIQINGCHUZHUANGZHI,YIJIANSHAOCHANSHENGQIKONGDEKENENG。

  HANFENGJINSHUCHANSHENGDEQIKONGKEFENWEI:NEIBUQIKONG,BIAOMIANQIKONG,JIETOUQIKONG。

  1.NEIBUQIKONG:YOULIANGZHONGXINGZHUANG。YIZHONGSHIQIUZHUANGQIKONGDUOBANSHICHANSHENGZAIHANFENGDEZHONGBU。CHANSHENGDEYUANYIN:HANJIEDIANLIUGUODA;DIANHUGUOZHANG;YUNBANGSUDUTAIKUAI;RONGJIEBUWEIBUJIEJING;HANTIAOSHOUCHAODENG。SHANGSHUZAOCHENGQIKONGYUANYINRUJINXINGSHIDANGDIAOZHENGHEZHUYIHANJIEGONGYIJICAOZUOFANGFA,JIUKEYIDEDAOJIEJUE。

  2.MIANQIKONG:CHANSHENGBIAOMIANQIKONGDEYUANYINHEJIEJUEFANGFA:MUCAIHANC、S、SiLIANGGAORONGYICHUXIANQIKONG。QIJIEJUEBANFAHUOSHIGENGHUANMUCAI,HUOSHICAIYONGDIQINGZHAXIDEHANTIAO。HANJIEBUWEIBUJIEJINGYERONGYICHANSHENGQIKONG。YINCIHANJIEBUWEIYAOQIUZAIHANJIEQIANQINGCHUYOUWU,TIEXIUDENGZANGWU。SHIYONGDIQINGHANTIAOHANJIESHIYAOQIUGENGWEIYANGE。HANJIEDIANLIUGUODA。SHIHANTIAOHOUBANBUYAOPIBIANHONG,YERONGYICHANSHENGQIKONG。YINCIYAOQIUCAIQUSHIYIDEHANJIEGUIFAN。HANJIEDIANLIUDAXIANDUYIHANTIAOWEIBUBUHONGWEIYI。DIQINGHANTIAORONGYIXICHAO,YINCIZAISHIYONGQIANJUNXUZAI350℃DEWENDUXIAHONGKAO1XIAOSHIZUOYOU。FOUZEYERONGYICHUXIANQIKONG。

  3. BOJIETOUQIKONG:SHIYONGDIQINGHANTIAOWANGWANGRONGYIZAIHANFENGJIETOUCHUCHUXIANBIAOMIANHENEIBUQIKONG,QIJIEJUEBANFA:HANBOJIETOUSHI,YINGZAIHANFENGDEQIANJINFANGXIANGJUHUKENG9~10mmCHUKAISHIYINHU,DIANHURANSHAOHOU,XIANZUOFANXIANGYUNBANGFANXIANGHUKENGWEIZHI,ZUOCHONGFENRONGHUAZAIQIANJIN,HUOSHIZAIHANFENGCHUYINHUJIUKEYIBIMIANZHEIZHONGLEIXINGDEQIKONGCHANSHENG .HANJIEWENDUSHIYINGXIANGHANFENGZHILIANGDEGUANJIANCANSHU,QINGCHUZHUANGZHIDEWEIZHIHAOANZHUANGZAIXIANBIANJIHEYUANPANJIANHOU,ZHUANGZHIDEJIEGOUSHIYIBIAN2GESHANGXIAWEIZHIKEDIAOZHENGJIANXIDEZHUDONGGANGSILUN,SHANGXIAYAJINBANBIAN;HANJIDEDUIJIHOUDUYIBANWEI25-45mm,HANJIKELIDUDA、MIDUXIAOSHIDUIJIHOUDUQUDAZHI,FANZHIQUXIAOZHI;DADIANLIU、DIHANSUDUIJIHOUDUQUDAZHI,FANZHIQUXIAOZHI,CIWAI,XIATIANHUOKONGQISHIDUDASHI,HUISHOUDEHANJIYINGHONGGANHOUZAISHIYONG;WEILEJIANSHAOCIPIANCHUIDEYINGXIANG,YINGSHIGONGJIANSHANGHANJIEDIANLANDELIANJIEWEIZHIJINKENENGYUANLIHANJIEZHONGDUAN,BIMIANBUFENHANJIEDIANLANZAIGONGJIANSHANGCHANSHENGCIJICICHANG;YINGSHIDANGJIANGDIHANJIESUDUHUODIANLIU,CONGERYANCHIHANFENGRONGCHIJINSHUDEJIEJINGSUDU,YIBIANYUQITIYICHU,TONGSHI,RUGUODAIGANGDISONGWEIZHIBUWENDING,YINGJISHIJINXINGDIAOZHENG,DUJUETONGGUOPINFANWEIDIAOQIANQIAOHUOHOUQIAOWEICHICHENGXING,ZAOCHENGQITIYICHUKUNNAN;WEIBIMIANKAIJUANJIAOPINGTUOLUODEYANGHUATIEPIDENGZAWUJINRUCHENGXINGGONGXU,YINGSHEZHIBANMIANQINGSAOZHUANGZHI。

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此文关键字:螺旋管 | Q345螺旋管 | Q235螺旋管 |

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