Polumikiza zitsulo, cholinga chake ndi kupanga mgwirizano wolimba komanso wopanda msoko pakati pa zitsulo ziwiri. Kulumikiza zitsulo za MIG ndi njira yosinthasintha yomwe ingagwiritsidwe ntchito kulumikiza zitsulo zosiyanasiyana. Kulumikiza zitsulo za MIG ndi njira yabwino yolumikizira zinthu pamodzi. Komabe, ngati zinthuzo zagwiritsidwa ntchito molakwika, ma porosity amatha kulowa mu cholumikiziracho. Izi zingayambitse mavuto ndi mphamvu ndi umphumphu wa cholumikiziracho.
Mu nkhaniyi, tiona zina mwa zifukwa zomwe zimayambitsa porosity mu MIG welding ndi momwe tingapewere izi.
Kodi N’chiyani Chimayambitsa Kutupa kwa Mig Welding?
Kuboola ndi mtundu wa vuto la kuwotcherera lomwe lingachitike mu ma weld. Limaoneka ngati mabowo ang'onoang'ono mu weld ndipo limatha kufooketsa mgwirizano pakati pa zidutswa ziwiri zachitsulo. Kuboola kungayambitsidwe ndi zinthu zosiyanasiyana, kuphatikizapo:
1) Kusakanikirana Kosakwanira
Izi zimachitika pamene cholumikizira cholumikizira sichikusungunula chitsulo choyambira ndi zinthu zodzaza. Izi zitha kuchitika ngati makina olumikizira sakuyikidwa pa amperage yoyenera kapena ngati tochi yolumikizira siikugwira bwino chitsulocho.
2) Kusapezeka bwino kwa mpweya
Kuwotcherera kwa MIG kumagwiritsa ntchito mpweya woteteza kuti uteteze weld ku mpweya ndi zinthu zina zodetsa. Ngati mpweya uli wochepa kwambiri, ma porosity amatha kuchitika. Izi zitha kuchitika ngati chowongolera mpweya sichinakhazikitsidwe bwino, kapena ngati pali kutuluka kwa madzi mu payipi ya mpweya.
3) Kutsekereza Mpweya
Chinanso chomwe chimayambitsa ma porosity ndi kutsekeka kwa gasi. Izi zimachitika pamene thovu la gasi latsekeredwa mu dziwe losungunula. Izi zitha kuchitika ngati tochi yosungunula siigwira pa ngodya yoyenera kapena ngati pali mpweya woteteza wambiri.
4) Dothi ndi Zodetsa
Kubowola kwa nthaka kungayambitsidwenso ndi kuipitsidwa kwa chitsulo choyambira kapena zinthu zodzaza. Dothi, dzimbiri, utoto, ndi zinthu zina zodetsa zingayambitsenso kubowola kwa nthaka. Izi zitha kuchitika ngati chitsulocho sichili choyera chisanalowetsedwe, kapena ngati pali dzimbiri kapena utoto pamwamba pake. Zodetsa izi zimatha kuletsa weld kuti isagwirizane bwino ndi chitsulocho.
5) Mpweya Wosakwanira Woteteza
Chinanso chomwe chimayambitsa ma porosity ndi mpweya wosakwanira woteteza. Izi zitha kuchitika ngati mpweya wolakwika wagwiritsidwa ntchito powotcherera kapena ngati mpweya sunakhazikitsidwe bwino.
Kodi Mungatani Kuti Musamavutike ndi Kutupa kwa Mitsempha Panthawi Yogwiritsa Ntchito MIG Welding?
Pali zinthu zingapo zomwe mungachite kuti mupewe kufooka kwa ming'alu panthawi yogwiritsa ntchito MIG welding:
1. Gwiritsani ntchito makonda oyenera: Onetsetsani kuti mukugwiritsa ntchito makonda oyenera pa makina anu olumikizirana. Amperage ndi voltage ziyenera kukhazikitsidwa motsatira malangizo a wopanga.
2. Gwiritsani ntchito mpweya woyenera: Onetsetsani kuti mwagwiritsa ntchito mpweya woyenera pa ntchito yanu yowotcherera. Argon nthawi zambiri imagwiritsidwa ntchito powotcherera MIG.
3. Kuyenda kwa mpweya: Khazikitsani kuchuluka kwa mpweya malinga ndi malangizo a wopanga. Mpweya wochuluka kapena wochepa kwambiri ungayambitse ma porosity.
4. Sungani tochi pa ngodya yoyenera: Onetsetsani kuti mwagwira tochi pa ngodya yoyenera kuti mupewe kugwidwa ndi mpweya. Tochi iyenera kugwiridwa pa ngodya ya madigiri 10 mpaka 15 kuchokera pamwamba pa chitsulocho.
5. Gwiritsani ntchito chitsulo choyera: Onetsetsani kuti mwagwiritsa ntchito chitsulo choyera, chosadetsedwa polumikiza. Dothi, dzimbiri, kapena utoto uliwonse pamwamba pake ungayambitse madontho.
6. Kulungira pamalo opumira mpweya wabwino: Kulungira pamalo opumira mpweya wabwino kuti mpweya usalowe m'malo otsekedwa. Mpweya woteteza ukhoza kutsekeredwa m'malo otsekedwa.
Kubowola kwa ming'alu kungapewedwe potsatira malangizo awa. Pogwiritsa ntchito malo oyenera komanso kuwotcherera pamalo opumira bwino, mutha kupewa vutoli.
Mankhwala Odziwika Pokonza Ma Welds a Porosity
Pali njira zingapo zodziwika bwino zokonzera ma weld omwe akhudzidwa ndi porosity:
1. Kuwotchereranso: Njira imodzi yodziwika bwino ndiyo kuwotchereranso malo okhudzidwawo. Izi zitha kuchitika powotcherera pamalo okhudzidwawo ndi mphamvu yamagetsi yokwera.
2. Mapulagi obowola: Njira ina yodziwika bwino ndikugwiritsa ntchito mapulagi obowola. Awa ndi ma disc ang'onoang'ono achitsulo omwe amayikidwa pamwamba pa mabowo omwe ali mu weld. Mapulagi obowola amatha kugulidwa m'masitolo ambiri ogulitsa zinthu zobowola.
3. Kupera: Njira ina ndiyo kupera malo omwe akhudzidwawo ndikuwotchereranso. Izi zitha kuchitika ndi chopera chogwira ndi manja kapena chopera cha ngodya.
4. Waya wowotcherera: Njira ina ndi kugwiritsa ntchito waya wowotcherera. Uwu ndi waya woonda womwe umagwiritsidwa ntchito kudzaza mabowo omwe ali mu chowotcherera. Waya wowotcherera ungagulidwe m'masitolo ambiri ogulitsa zinthu zowotcherera.
Kuboola kwa malo kungakonzedwe pogwiritsa ntchito imodzi mwa njira zodziwika bwino izi. Mwa kulumikizanso malowo kapena kugwiritsa ntchito ma porosity plugs, mutha kukonza vutoli.
Nthawi yotumizira: Disembala-23-2022