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竞博体育yahuhanweishenmehuichanshengqikong?

氩弧焊竞博体育是以惰性气体“ 氩气” 作为保护气体的一种电弧焊方法,氩气从喷嘴中喷出,在焊接区形成惰性气体保护层,隔绝了空气的侵入,从而对电弧及熔池形成保护。

gaihanjiefangfayouhenduoyoudian: baohuxiaoguohao,hanjiezhilianggao,buhuichanshengfeijian, hanfengchengxingmeiguan;hanjiebianxingxiao,keshixiandanmianhanshuangmianchengxing,baozhenggenbuhantou,nengjinxinggezhongweizhidehanjie;keyihanjiegezhongjinshuhehejin;dianhuranshaowending, minghucaozuo,wurongzha, rongyishixianzidonghua。

竞博体育yinci,zaishijishengchanzhongdedaoguangfanyingyong。danyouyuyahuhankangfengnengliruo,duitiexiu、shui,youwutebiemingan,duiqitidechundu、pokouqingli、hanjiegongyidengyaoqiuyange,rongyichanshengqikong。

本文结合生产实际对氩弧焊焊接产生气孔问题进行分析,并提出一些处理方法和注意事项。

qikongdeyingxiangyinsu

1.氩气不纯

hanjietangangshiyaqidechundubudiyu99.7%,hanjielvshibudiyu99.9%, erhanjietaihetaihejinyongdeyaqichundugaoda99.99%。

检测氩气纯度方法:

竞博体育(l) zaidamoganjingdegangbanhuoguanzishangbujiahansijinxinghanjie,ranhouzaihandaoshangduocizhongrong,ruguoyouqikong,zeshuomingyaqibuchun。

(2) hanjieshi,dianhuzhouweiyoufeichangxiaodehuoxingyeshuomingyaqibuchun。

竞博体育(3) youshidangyaqidechundujiejinhanjieyaoqiudechunduyaoqiushi,yongshangshu2zhongjiancefangfabingbunengjianyanchulai,danshizaihanjieyoujianxidehankoushi,jiuhuizaihanfengdegenbuchanshengduanxudeqikong,huozhezaigaimianhanshichanshengbiaomianqikong,huohandaobiaomianyouyicengyanghuapi。

(4) zainiebanshangdianhanshudian,handianchengyinbaise,biaomianrujingmian,zeshuomingyaqichunduhege。

2.氩气流量

竞博体育yaqiliuliangguoxiao,kangfengganraonengliruo ;guoda,qitiliusutaida,jingguopenzuishixingchengdejinbicengliuhenbo,qitipenchuhou,henkuaiwenluan,erqierongyibakongqijuanru,duirongchidebaohuxiaoguobiancha。suoyi,yaqideliuliangyidingyaoheshi,qiliucainengwending。

3.气带漏气

qidaijiekouhuozheqidailouqidouhuizaochenghanjieshiqitiliuliangguoxiao,kongqibeixiruqidainei,congerzaochengbaohuxiaoguobuhao。

4. 风的影响

fengshaoda,huishiyaqibaohucengxingchengwenliu,congerzaochengbaohuxiaoguobujia。yinci,fengsu> 2m/sshiyaocaiqufangfengcuoshi;hanjieguanzishi,yaobaguankouduzhu,bimianzaiguanneixingchengchuantangfeng。

5.焊枪喷嘴的影响

竞博体育penzuizhijingguoxiao,dangdianhuzhouweideyaqiyouxiaobaohufanweixiaoyurongchimianjishi,jiuhuizaochengbaohubuhaoerchanshengqikong。youqishiyewaizuoye、hanjiedaguanzishiyaoyongjiaodazhijingdepenzui,yiyouxiaodibaohudianhuherongchi。

6.焊枪喷嘴与工件间的距离

gaijulixiao,duicefengdeyingxiangminganduxiao;gaijulida,kangfengganraodenengliruo。

7.气瓶内压力太小

qipingneideyalixiaoyu1mpashiyaotingyong。

8.焊枪角度过大

竞博体育hanqiangdejiaoduguoda,yifangmianhuibakongqidairurongchi,lingyifangmianzaochengzhanghucedeyaqiliuduidianhuherongchidebaohuxiaoguobiancha。

9 .氢气流量表的影响

竞博体育liuliangbiaochuqibuwending,hudahuxiaodouhuiyingxiangbaohuxiaoguo。

10 .操作的影响

竞博体育zaiyongdaikongzhianniudeyahuhanhanqiangshi,zaihanqianyaoxianfangqi,yimianqidaineideyaliguoda,zaiyinhushizaochengchuqiliuliangshunjianguoda,chanshengqikong。

11 .焊枪配件不合适

wujijiabupeitao,dusaiqilubuliuchang,baohuqiticongpenzuineideyiceliuchu,bunengxingchengwanzhengdebaohuquan。

hanjiecailiaodeyingxiang

1 .焊丝型号的影响

竞博体育bunengyongmaihuhanhansidaitishougongwujiyahuhanhansi,fouzehuichanshengduanxuhuozhelianxuzhuangdeqikong。

2 .焊丝不干净

hansibiaomianyoutiexiu、youwu、shuijiangzhijiecushihanfengneichanshengdaliangdeqikong。

mucaicaizhideyingxiang

1. 板材或管材质量的影响

竞博体育bancaihuoguancaizhongruoyoujiaceng,jiacengzhongdezazhihuicushiqikongquexiandechansheng。

2 .钢种的影响

feitenggang( yanghanliangda、zazhiduo)bunengyongyahuhanhanjie。

wujideyingxiang

1. 钨极端部的影响

wujiduanbubujian,dianhupiaoyibuwending,pohuaiyaqidebaohuqu,shirongchijinshuyanghuachanshengqikong。

2 .引弧时电弧上爬造成保护不好

竞博体育dangyonggaopinyinhudeshebeishi,gangyinhushiwujiduanbuwendudi,bujubeizugouderefashedianzinengli,dianzirongyicongyouyanghuamodedifangfashe,yandianjishangpaxunzhaoyouyanghuawudedifangfashe,cishizaochengdianhulazhang,yaqiduirongchidebaohuxiaoguobiancha,dangwujidewendushangshenghou,dianzibiancongwujideqianduanfashe,dianhuhuzhangxiangyingbianduan。zheishizhiyaobawujibiaomianshangyanghuawudamoganjingjiukeyipaichu。

hanjiegongyideyingxiang

1 .坡口清理

pokoumianyijipokouliangcege10mmfanweidouyaodamoganjing,bimianhanjieshidianhuchanshengdecixingbarongchifujindetiexiuxirurongchi。

2 .焊接速度的影响

竞博体育hanjiesuduguokuai,youyukongqizuliduibaohuqiliudeyingxiang, yaqiqiliuhuiwanqu,pianlidianjizhongxinherongchi,duirongchihedianhubaohubuhao。

3 .熄弧弧方法的影响

竞博体育xihushicaiyongshuaijiandianliuhuojiahansi、badianhudaidaopokoucebingyadidianhudexihufangfa,buyaoturantinghuzaochenggaowenderongchituoliyaqiliudeyouxiaobaohu,bimianhukengchuxianqikonghuosuokong。

4 .焊接电流的影响

hanjiedianliutaixiao,dianhubuwending,dianhuzaiwujideduanbubuguizedipiaoyi,pohuaibaohuqu。hanjiedianliutaida,dianhuduiqiliuchanshengraoluanzuoyong,baohuxiaoguobiancha。

5 .钨极伸出长的影响

竞博体育wujishenchuzhangtaizhang,qingqiduidianhuherongchidebaohuxiaoguobiancha。

结语

yinqishougongwujiyahuhanhanjieshichanshengqikongdeyinsuguranjiaoduo,danshi,zhiyaolejieleyahuhandetedian,binggenjushijiqingkuangzhuyipaichayingxiangyinsu,paichusuoyouyinqiyahuhanshihanfengchanshengqikongdeyinsu,jiunenggouzaishijishengchanzhongtigaohanjiezhiliang。