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铝及铝合金零件的焊接工艺方法

发布时间:2021/04/25

      【zhaiyao】lvjilvhejincailiaomidudi,qiangdugao,rediandaolvgao,naifushinengliqiang,juyoulianghaodewulitexinghelixuexingneng,yingyongyugongyechanpindehanjiejiegoushang。zhangqiyilai,youyuhanjiefangfajihanjiegongyicanshudexuanqubudang,hanjieshidechangchuxianquexian,benwenjieshaolecileijinshulingjianhanjieshidegongyibuzhoujiqihanjiecanshudexuanqu。

  【guanjianci】lvhejinhanjiejiagonggongyi

  lvjilvhejincailiaomidudi,qiangdugao,rediandaolvgao,naifushinengliqiang,juyoulianghaodewulitexinghelixuexingneng,yingyongyugongyechanpindehanjiejiegoushang。zhangqiyilai,youyuhanjiefangfajihanjiegongyicanshudexuanqubudang,zaochenglvhejinlingjianhanjiehouyinyingliguoyujizhongchanshengyanzhongbianxing,huoyinweihanfengqikong、jiazha、weihantoudengquexian,daozhihanfengjinshuliewenhuocaizhishusong,yanzhongyingxianglechanpinzhiliangjixingneng。

  1 lvhejincailiaotedian

  lvshiyinbaisedeqingjinshu,juyoulianghaodesuxing、jiaogaodedaodianxinghedaorexing,tongshihaijuyoufangyanghuahefangfushidenengli。lvjiyiyanghuachanshengsanyanghuaerlvbomo,zaihanfengzhongrongyichanshengjiazawu,congerpohuaijinshudelianxuxinghejunyunxing,jiangdiqijixiexingnenghenaifushixingneng。changjianlvhejinmucaihehansidehuaxuechengfenjijixiexingnengjianbiao1。

  2 lvhejincailiaodehanjienandian

  (1)jiyiyanghua。zaikongqizhong,lvrongyitongyanghuahe,shengchengzhimidesanyanghuaerlvbomo(houduyue0.1-0.2μm),rongdiangao(yue2050℃),yuanyuanchaoguolvjilvhejinderongdian(yue600℃zuoyou)。demidu3.95-4.10g/cm3,yueweilvde1.4bei,bomodebiaomianyixifushuifen,hanjieshi,tazuaijibenjinshuderonghe,jiyixingchengqikong、jiazha、weironghedengquexian,yinqihanfengxingnengxiajiang。

  (2)yichanshengqikong。lvhelvhejinhanjieshichanshengqikongdezhuyaoyuanyinshiqing,youyuyetailvkerongjiedaliangdeqing,ergutailvjihuburongjieqing,yincidangrongchiwendukuaisulengqueyuninggushi,qinglaibujiyichu,rongyizaihanfengzhongjujixingchengqikong。qingqikongmuqiannanyubimian,qingdelaiyuanhenduo,youdianhuhanqifenzhongdeqing,、hansibiaomianxifukongqizhongdeshuifendeng。shijianzhengming,jishiyaqiangb/t4842biaozhunyaoqiu,chundudadao99.99% yishang,dandangshuifenhanliangdadao20ppmshi,yehuichuxiandaliangdezhimiqikong,dangkongqixiangduishiduchaoguo80%shi,hanfengjiuhuimingxianchuxianqikong。

  (3)hanfengbianxinghexingchengliewenqingxiangda。lvdexianpengzhangxishuhejiejingshousuolvyuebigangdaliangbei,yichanshengjiaodadehanjiebianxingdeneiyingli,duigangxingjiaodadejiegoujiangcushireliewendechansheng。

  (4)lvdedaorexishuda(chunlv0.538ka/cm.s.℃)。yueweigangde4bei,yinci,hanjielvhelvhejinshi,bihangangyaoxiaohaogengduodereliang。

  (5)hejinyuansudezhengfadeshaosun。lvhejinzhonghanyoudifeidiandeyuansu(rumei、xin、mengdeng),zaigaowendianhuzuoyongxia,jiyizhengfashaosun,congergaibianhanfengjinshudehuaxuechengfen,shihanfengxingnengxiajiang。

  (6)gaowenqiangduhesuxingdi。gaowenshilvdeqiangduhesuxinghendi,pohuailehanfengjinshudechengxing,youshihairongyizaochenghanfengjinshutaluohehanchuanxianxiang。

  (7)wusecaibianhua。lvjilvhejinconggutaizhuanweiyetaishi,wumingxiandeyansebianhua,shicaozuozhenanyizhangwojiarewendu。

  3 lvhejincailiaohanjiedegongyifangfa

  (1)hanqianzhunbei

  caiyonghuaxuehuojixiefangfa,yangeqinglihanfengpokouliangcedebiaomianyanghuamo。

  huaxueqingxishishiyongjianhuosuanqingxigongjianbiaomian,gaifajikequchuyanghuamo,haikechuyouwu,jutigongyiguochengruxia:tijifenshuwei6%~10%deqingyanghuanarongye,zai70℃zuoyoujinpao0.5min→shuixi→tijifenshuwei15%dexiaosuanzaichangwenxiajinpao1minjinxingzhonghechuli→shuixi→wenshuixi→ganzao。xihaohoudelvhejinbiaomianweiwuguangzedeyinbaise。

  jixieqinglikecaiyongfengdonghuodiandongxiandao,haikecaiyongguadao、cuodaodenggongju,duiyujiaobodeyanghuamoyekeyong0.25mmdetongsishuadamoqingchuyanghuamo。

  qinglihaohoulijishihan,ruguofangzhishijianchaoguo4h,yingzhongxinqingli。

  (2)quedingzhuangpeijianxijidingweihanjianju

  shihanguochengzhong,shourepengzhang,zhishihanfengpokoujianxijianshao,hanqianzhuangpeijianxiruguoliudetaixiao,hanjieguochengzhongjiuhuiyinqiliangbandepokouzhongdie,zengjiahanhoubanmianbupingduhebianxingliang;xiangfan,zhuangpeijianxiguoda,zeshihankunnan,bingyoushaochuandekeneng。heshidedingweihanjianjunengbaozhengsuoxudedingweihanjianxi,yinci,xuanzeheshidezhuangpeijianxijidingweihanjianju,shijianshaobianxingdeyixiangcuoshi。genjujingyan,butongbanhouduijiefengjiaohelidezhuangpeigongyicanshurubiao2。

  (3)xuanzehanjieshebei

  muqianshichangshanghanjiechanpinzhongleijiaoduo,yibanqingkuangxiayicaiyongjiaoliuwujiyahuhan(jitighan)。tashizaiyaqidebaohuxia,liyongwudianjiyugongjianwenchanshengdedianhureronghuamucaihetianchonghansideyizhonghanjiefangfa。gaihanjigongzuoshi,youyujiaoliudianliudejixingshizaizhouqixingdebianhuan,zaimeigezhouqilibanboweizhiliuzhengjie,banboweizhiliufanjie。zhengjiedebanboqijianwujikeyifashezugoudedianzieryoubuzhiyuguore,youliyudianhudewending。fanjiedebanboqijiangongjianbiaomianshengchengdeyanghuamohenrongyibeiqinglidiaoerhuodebiaomianguangliangmeiguan、chengxinglianghaodehanfeng。

  (4)xuanzehansi

  yibanxuanyong301chunji311lvguihansi。

  (5)xuanquhanjiefangfahecanshu

  yibanyizuohanfajinxing,hanjuhegongjiancheng60°jiao。hanjiehoudu15mmyishangshi,yiyouhanfajinxing,hanjuhegongjiancheng90°jiao。

  hanjiebihouzai3mmyishangshi,kaivxingpokou,jiajiaowei60°~70°,jianxibudedayu1mm,yiduocenghanwancheng。bihouzai1.5mmyixiashi,bukaipokou,buliujianxi,bujiatianchongsi。hangudingguanziduijiejietoushi,dangguanjingwei200mm,bihouwei6mmshi,yingcaiyongzhijingwei3~4mmdewuji,yi220~240adehanjiedianliu,zhijingwei4mmdetianchonghansi,yi1~2cenghanwan。

  genjujingyan,zailvjilvhejinhanjieshi,qishiyongdehanjiecanshurubiao3suoshi。