Direct current (DC) kuwotcherera ndi alternating current (AC) ndi ziwiri zomwe zimagwiritsidwa ntchitokuwotcherera njira, ndipo aliyense ali ndi makhalidwe awoawo. M'nkhaniyi, tiwona kusiyana kotani pakati pa kuwotcherera kwa DC ndi kuwotcherera kwa AC pagawo lakukana kuwotcherera, ndi kuwotcherera komwe kuli kopindulitsa kwambiri? Izi zidzakuthandizani kusankha pakati pa ziwirizi.
Mfundo Zogwirira Ntchito:
MFDC/Inverter Welding Machine:
Choyamba,magawo atatuMagetsi a AC amadutsa muzokonzanso kuti zisefe.
Chachiwiri,IGBTmasiwichi amasintha magetsi kukhala ma frequency apakati a 1000 Hz ndikutumiza kukuwotcherera thiransifoma.
Pomaliza, ma diode owongolera mphamvu kwambiri amatulutsa mphamvu zowotcherera ngati stable current (DC).
Makina Owotcherera a AC:
Mphamvu yamagetsi ndi AC, yomwe, ikadutsa pamagetsi, imalowa m'dera lalikulu ndi dera lolamulira.
Transformer imatsitsa mphamvu yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yocheperako, yoyenera kuwotcherera. AC panopa alternates zabwino ndi zoipa, kutulutsa kutentha pamene akudutsa kuwotcherera ndodo ndi workpiece, potero kusungunula zinthu kuwotcherera ndi kukwaniritsa kuwotcherera.
Kodi pali kusiyana kotani pakati pa kuwotcherera kwa DC ndi kuwotcherera kwa AC?
Kukhazikika
Kuwotcherera kwa DC ndi imodzi mwazinthu zodziwika bwino padziko lonse lapansi zowotcherera zomwe zimakhala zolimba kwambiri. The kuwotcherera ndondomeko magawo ndi ochezeka, yachiwiri panopa ADAPTS osiyanasiyana, ndipo moona amakhalabe nthawi zonse, amene ali ndi chiyembekezo ntchito yotakata kuposa kuwotcherera AC.
Kuwotcherera kwa DC kumasinthidwa pamlingo wa 1000 pa sekondi iliyonse, kufika kulondola kwa millisecond, komwe kumakhala kupitilira nthawi 20 kuposa kulondola kwa ma welder achikhalidwe a AC.
Kuwotcherera kwa DC sikumakhudzidwa ndi mawonekedwe ndi zinthu za workpiece, kuthetsa kutayika kwa inductance. The makina kuwotcherera AC n'zosavuta kuwotcherera mapindikidwe kapena osauka kulimba chifukwa cha kusintha kwa mawonekedwe a workpiece zakuthupi.
Weld Splash
Magetsi a DC amatulutsa mawonekedwe ang'onoang'ono kwambiri kuti asagwedezeke kwambiri komanso kuchepetsa kuwotcherera. Koma kuwotcherera kwa AC munjira yowotcherera kudzatulutsa spatter yambiri, kumakhudza mtundu wa zinthu zowotcherera.
Kuwotcherera bwino
Mphamvu yowotcherera ya makina owotcherera a DC ndi yopitilira 98%, ndipo mphamvu yowotcherera ya makina owotcherera a AC ndi pafupifupi 60%, zomwe zikuwonetsa kuti kuyendetsa bwino kwa DC ndikokwera kwambiri kuposa AC.
Mtengo
Chifukwa mtengo woyamba wa DC kuwotcherera pakali pano ukuchulukirachulukira, nthawi yeniyeni yowotcherera imafupikitsidwa ndi zoposa 20%, ndipo mtengo wanthawiyo umapulumutsidwa kwambiri.
Komabe, pamtengo wa makina owotcherera, makina owotcherera a AC ndiwopambana, ndipo mtengo wake ukhoza kukhala wamba kapena wocheperako kuposa makina a DC. Ngati muli ndi bajeti yochepa kugula makina owotcherera, ndiye kuti makina a AC ndi chisankho chabwino.
Kusunga Mphamvu
Zofunikira pamagetsi a fakitale ndizochepa, pafupifupi 2/3 ya chowotcherera cha AC, ngakhale mphamvu yamagetsi ikasinthasintha, wowotcherera wa DC amatha kuwongolera molondola kuwotcherera pano. Chifukwa chake, kugwiritsa ntchito mphamvu kwa makina owotcherera a DC kumachepetsedwa kwambiri, ndipo kupulumutsa mphamvu kupitilira 40% kumatheka.
Chitetezo Chachilengedwe
Kuwotcherera kwa DC ndi njira yobiriwira yowotcherera yomwe imachotsa kuipitsidwa kwa magetsi, sikufuna magetsi osiyana, ndipo ingagwiritsidwe ntchito ndi makina owongolera ma robot. Kuwotcherera kwa Ac kumakhala ndi mphamvu yayikulu pagululi yamagetsi, ndipo ndikosavuta kuyipitsa magetsi.
Chidule
Mwachidule, kuwotcherera kwa DC ndikopambana kuposa kuwotcherera kwa AC muzinthu zambiri. Ngati muli ndi bajeti yokwanira, ndiye kuti muyenera kusankha DC kuwotcherera. Kuphatikiza apo, ngati mukufuna kuwotcherera zinthu zomwe zili ndi zofunika kwambiri, makina a DC ndiyenso chisankho chanu chabwino kwambiri.
Nthawi yotumiza: Jul-30-2024
