Zifukwa Zosakwanira Fusion mu Spot Welding?

Kuphatikizika kosakwanira, yomwe imadziwika kuti "cold weld" kapena "kusowa kwa fusion," ndizovuta kwambiri zomwe zimatha kuchitika pakawotcherera malo pogwiritsa ntchitomakina owotcherera malo. Zimatanthawuza momwe chitsulo chosungunula chimalephera kusakanikirana ndi zinthu zoyambira, zomwe zimapangitsa kuti pakhale mgwirizano wofooka komanso wosadalirika. Nkhaniyi ikufuna kufufuza zinthu zosiyanasiyana zomwe zingayambitse kusamvana kosakwanirakuwotcherera malo.

Welding Current

Kuwotcherera panopa ndi chimodzi mwa magawo ofunika kwambiri mukuwotcherera ndondomeko, ndipo imakhala ndi mphamvu yochulukitsa pa kutentha komwe kumapangidwa panthawi yowotcherera. Kusakwanira kuwotcherera pakali pano ndi chimodzi mwazifukwa zazikulu zosaphatikizira. Mphamvu yowotcherera ikakhala yotsika kwambiri, sizingapange kutentha kokwanira kusungunula gawo lapansi. Chotsatira chake, chitsulo chosungunula sichingathe kulowa ndi kuphatikizira bwino, zomwe zimapangitsa kuti pakhale kusakanikirana kosakwanira pa mawonekedwe owotcherera.

Kuthamanga kwa Electrode kosakwanira

Mphamvu yamagetsi yosakwanira ingayambitsenso kusakanikirana kosakwanira. Kuthamanga kwa magetsi kumagwiritsidwa ntchito pa workpiece kuti zitsimikizire kukhudzana kolondola ndi kulowa mkati mwa kuwotcherera. Ngati mphamvu yamagetsi ndi yochepa kwambiri, malo olumikizana pakati pa workpiece ndi workpiece ndi ang'onoang'ono, pamene kuwotcherera, kuyenda kwa atomiki kwa mgwirizano wa solder kudzakhala kosakwanira, kotero kuti zigawo ziwiri za solder sizingagwirizane bwino.

Kuyanjanitsa kwa Electrode Ndikolakwika

Kuyanjanitsa kolakwika kwa maelekitirodi kungayambitse kutentha kosafanana, zomwe zimapangitsa kusakanizika kosakwanira. Pamene maelekitirodi sali ogwirizana, kutentha komwe kumapangidwa panthawi yowotcherera sikungathe kugawidwa mofanana m'dera lonselo. Kugawidwa kwa kutentha kosiyana kumeneku kungayambitse kusakanizika kosakwanira m'madera akumidzi. Choncho, ntchito yowotcherera isanayambe, onetsetsani kuti maelekitirodi apamwamba ndi apansi ndi olondola, ngati sakugwirizana, m'pofunika kuwagwirizanitsa ndi chida.

Workpiece Surface Kuipitsidwa Kapena Oxidation

Kuipitsidwa kapena makutidwe ndi okosijeni a workpiece pamwamba akhoza kusokoneza maphatikizidwe wamba pa malo kuwotcherera. Zowonongeka, monga mafuta, dothi, kapena zokutira, zimakhala ngati chotchinga pakati pa chitsulo chosungunuka ndi gawo lapansi, zomwe zimalepheretsa kusungunuka. Mofananamo, okosijeni pamtunda ukhoza kupanga wosanjikiza wa oxide umene umalepheretsa kugwirizana koyenera ndi kusakanikirana. Mwachitsanzo, pamene mukufuna kuwotcherera zipsepse makina ndimapetochubumakinapa chubu, ngati pamwamba pa chubu ndi dzimbiri, kuwotcherera kuyenera kukhala kosaphatikizika, kotero kuti cholumikizira cholumikizira chizikhala chosakhazikika komanso kukhudza mtundu wa chinthucho.

Nthawi Yaifupi Yowotcherera

Nthawi yowotcherera yosakwanira imalepheretsa chitsulo chosungunuka kuyenda mokwanira ndikuphatikizana ndi zinthu zoyambira. Ngati nthawi yowotcherera ili yochepa kwambiri, kukhudzana kwachitsulo sikunaphatikizidwe mokwanira kusanathe kutha, ndipo kuphatikiza kosakwanira kumeneku kumayambitsa kuwotcherera kofooka komanso kosadalirika.

Kumvetsetsa zinthu zomwe zimabweretsa kusakwanira kwa kuwotcherera kwa malo ndikofunikira kuti muwonetsetse kuti ma welds apamwamba kwambiri. Ndi kuthetsa mavuto osakwanira kuwotcherera panopa, osakwanira mphamvu yamagetsi, zosayenera elekitirodi mayikidwe, kuipitsidwa padziko kapena makutidwe ndi okosijeni, ndi osakwanira kuwotcherera nthawi, mukhoza kuchepetsa kuchitika kwa chosakwanira maphatikizidwe pamene kuwotcherera ntchito, kotero kuti wonse kuwotcherera khalidwe akhoza kwambiri bwino.