Makina owotcherera magetsi amagwiritsa ntchito magetsi kuti amasinthe nthawi yomweyo mphamvu yamagetsi kukhala mphamvu yotentha. Magetsi ndiofala kwambiri. Makina otsekemera amagetsi ndioyenera kugwira ntchito m'malo ouma ndipo safuna zofunikira zambiri. Amagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana chifukwa chakuchepa kwawo, magwiridwe antchito, kugwiritsa ntchito bwino, kuthamanga mwachangu komanso zotsekemera zamphamvu mutawotcherera, makamaka pazinthu zomwe zimafunikira mphamvu yayikulu, Chitsulo chomwecho (kapena zitsulo zosiyanasiyana zimatha kulumikizidwa, koma njira zowotcherera zosiyana) zitha kulumikizidwa kosatha. Pambuyo pa chithandizo chamatenthedwe, chotsekeracho chimakhala ndi mphamvu yofanana ndi chitsulo ndipo chimasindikizidwa bwino, chomwe chimathetsa mavuto osindikiza ndi mphamvu pakupanga gasi ndi zotengera zosungira madzi. 2, Zoyipa zamagetsi zowotcherera zamagetsi: pakagwiritsa ntchito makina owotcherera magetsi, maginito ena adzapangika mozungulira makina owotcherera, ndipo ma radiation azipangidwira kuzungulira pakayaka kwa arc. Pali infrared, ultraviolet ndi mitundu ina ya kuwala mu arc, komanso zinthu zoyipa monga nthunzi yachitsulo ndi utsi. Chifukwa chake, njira zokwanira zotetezera ziyenera kutengedwa nthawi yogwira ntchito. Kuwotcherera si oyenera kuwotcherera wa mkulu mpweya zitsulo. Chifukwa crystallization, tsankho ndi makutidwe ndi okosijeni wa china chotulutsa zitsulo, ntchito kuwotcherera wa mpweya zitsulo ndi osauka, ndipo n'zosavuta osokoneza pambuyo kuwotcherera, chifukwa mu ming'alu otentha ndi ming'alu ozizira. Chitsulo chochepa cha kaboni chimagwira bwino ntchito, koma iyeneranso kugwiritsidwa ntchito moyenera. Kuwononga ndi kuyeretsa ndizovuta. Nthawi zina ming'alu yophatikizira slag, pores, undercuts ndi zolakwika zina zimawonekera mu weld, koma kugwira ntchito moyenera kumachepetsa zolakwika.

Zamakono ndi zamagetsi zimachepetsedwa ndi magawo atatu osinthira, okonzedweratu ndi thyristor element, ndipo zotulutsa zake zikulamulidwa ndikusintha gawo loyambira la thyristor. Chotsani siginolo yapano kuchokera ku shunt kumapeto kwa DC kumapeto kwa wokonzanso monga siginecha yoyipa yamakalata. Pamene kutulutsa kwa DC kukuwonjezeka, mayankho olakwika amawonjezeka, mawonekedwe a thyristor amachepetsa, ndipo zotulutsa pakali pano ndi magetsi zimachepa, kuti mupeze mawonekedwe akunja ochepetsedwa. Dera lokakamiza limakulitsa kutulutsa kwakanthawi pomwe mphamvu yamagetsi ndiyotsika kuposa 15V, makamaka pakagawo kochepa, ndikupanga mawonekedwe akunja akunja, kuti ma elekitironi asakhale ovuta kumamatira. Dera loyenda la arc limakulitsa mphamvu yamagetsi yomwe yapatsidwa munthawi yochepa nthawi iliyonse yomwe arc ikuyenda, kuti pakali pano arc ikhale yayikulu komanso yosavuta kuyamba

• Mafotokozedwe Akatundu