mkulu kuuma ndi mkulu kuvala kukana kuwotcherera elekitirodi
Electrode imakhala ndi pachimake ndi zokutira.Elekitirodi ndi ❖ kuyanika (kuphimba) uniformly ndi chapakati ntchito pachimake kunja kwa zitsulo kuwotcherera pachimake.Mitundu yosiyanasiyana ya elekitirodi, pachimake ndi osiyana.Chowotcherera pachimake ndi chitsulo pakati pa electrode.Pofuna kutsimikizira ubwino ndi ntchito ya weld, pali malamulo okhwima pa zomwe zili muzitsulo zosiyanasiyana
zinthu mu kuwotcherera pachimake, makamaka zili zonyansa zoipa (monga sulfure, phosphorous, etc.), payenera kukhala zoletsa okhwima, amene ali bwino kuposa m'munsi zitsulo.Pakatikati pazitsulo za electrode amatchedwa weld core.Chowotcherera pachimake nthawi zambiri chimakhala waya wachitsulo wokhala ndi kutalika kwake komanso m'mimba mwake.Pa kuwotcherera, pachimake kuwotcherera ali ndi ntchito ziwiri: imodzi ndi kuchita kuwotcherera panopa ndi kupanga arc magetsi kusintha mphamvu magetsi kutentha kutentha;chinacho ndikusungunula chitsulo chowotcherera chokha ngati chitsulo chodzaza ndi chitsulo chamadzimadzi kuti asungunuke kuti apange chowotcherera.
Welding pachimake ndi zokutira.
Paphata pa Chichewa ndi waya wa m’mimba mwake ndi kutalika kwake.Udindo wa kuwotcherera pachimake;Chimodzi ndicho kuchita ngati electrode ndikupanga arc yamagetsi;Chachiwiri, mutatha kusungunuka ngati chitsulo chodzaza, ndi chitsulo chosungunuka pamodzi kuti mupange weld.Kapangidwe kake ka weld pachimake kumakhudza mwachindunji mtundu wa weld, chifukwa chake chowotcherera chimasungunuka mwapadera ndi mphero zachitsulo.Mpweya wa carbon zitsulo zowotcherera ndodo zimagwiritsidwa ntchito kwambiri m'dziko lathu.Mtundu wowotcherera pakatikati ndi H08 ndi H08A, wokhala ndi mpweya wapakati pa 0.08% (A imayimira apamwamba kwambiri).
The awiri a elekitirodi amasonyezedwa ndi awiri a kuwotcherera pachimake.
The awiri omwe amagwiritsidwa ntchito kwambiri ndi 3.2 ~ 6mm ndipo kutalika ndi 350 ~ 450mm.
Kupaka kunja kwa chitsulo chowotcherera, kumapangidwa ndi mchere wambiri (monga marble, fluorite, etc.), aloyi yachitsulo ndi binder ndi zipangizo zina zopangira malinga ndi gawo lina la kukonzekera.Ntchito yaikulu ya zokutira ndi kupanga arc kuyatsa mosavuta ndi kukhazikika arc kuyaka;Kuchuluka kwa mpweya ndi slag kumapangidwa kuti ateteze chitsulo cha dziwe losungunuka kuchokera ku okosijeni.Chotsani zonyansa zowononga (monga mpweya, haidrojeni, sulfure, phosphorous, ndi zina zotero) ndikuwonjezera ma alloying zinthu kuti muwongolere makina a weld.
Elekitirodi itha kugwiritsidwa ntchito ngati ma elekitirodi popangira kuwotcherera pakali pano, komanso ngati chitsulo chodzaza ndi msoko wowotcherera ndi zida zodzitetezera padziwe lowotcherera.
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