Direct current (DC) welding le alternating current (AC) welding ke tse peli tse sebelisoang hangatamekhoa ea ho cheselletsa, 'me e mong le e mong o na le litšobotsi tsa hae. Sehloohong sena, re tla sekaseka hore na ho na le phapang efe pakeng tsa welding ea DC le AC welding tšimong earesistance welding, 'me ke ho cheselletsa hofe ho molemo ho feta? Sena se tla u thusa ho khetha pakeng tsa tse peli.
Melao-motheo ea ho sebetsa:
MFDC/Inverter Welding Machine:
Ea pele,mekhahlelo e meraroMatla a motlakase a AC a feta ho li-rectifier bakeng sa ho sefa.
Ea bobeli,IGBTli-switches li fetolela ea hona joale hore e be maqhubu a mahareng a 1000 Hz ebe a e fetisetsa hotjheseletsa transformer.
Qetellong, li-diode tse lokisang matla a phahameng li hlahisa hona joale oa welding e le mokhoa o tsitsitseng o tobileng (DC).
Mochini oa ho Welding oa AC:
Motlakase oa matla ke AC, eo, ka mor'a hore e fete ka sesebelisoa sa matla, e kenang potolohong e kholo le potoloho ea taolo.
Transformer e theola AC ea matla a phahameng ho ea ho AC e nang le matla a tlase e loketseng ho cheselletsa. AC hona joale alternates pakeng tsa tse ntle le tse mpe, ho hlahisa mocheso ha o ntse o feta har'a molamu oa ho tjheseletsa le workpiece, ka tsela eo e qhibilihisa thepa ea ho cheselletsa le ho finyella welding.
Phapano ke efe lipakeng tsa welding ea DC le AC welding?
Botsitso
DC welding ke e 'ngoe ea lihlahisoa tse tsebahalang lefatšeng ka bophara tse phahameng tsa ho hanyetsa tse nang le botsitso bo matla. Mekhahlelo ea ts'ebetso ea welding ke ea botsoalle, ADAPTS ea morao-rao ea morao-rao ho mefuta e mengata, 'me e lula e le teng kamehla, e nang le tebello e pharalletseng ea kopo ho feta welding ea AC.
The DC welding current e lokisoa ka sekhahla sa makhetlo a 1000 motsotsoana, ho fihlela ho nepahala ha millisecond, e leng makhetlo a fetang 20 ho feta ho nepahala ha li-welders tsa setso tsa AC.
DC welding ha e amehe ke sebopeho le thepa ea workpiece, ho felisa tahlehelo ea inductance. Mochini oa welding oa AC o bonolo ho tjheseletsa deformation kapa ho tiea ho futsanehileng ka lebaka la liphetoho tsa sebopeho sa thepa ea workpiece.
Weld Splash
Motlakase oa DC o hlahisa mofuta o monyane oa maqhubu ho qoba ho ts'oha ha hona joale le ho fokotsa ho phatloha nakong ea welding. Empa ho tjheseletsa ha AC ts'ebetsong ea welding ho tla hlahisa spatter e ngata, ho ama boleng ba lihlahisoa tsa welding.
tjheseletsa bokgoni
Mochini oa welding oa DC o feta 98%, 'me matla a ho cheselletsa mochini oa welding oa AC o ka bang 60%, ho bonts'a hore ts'ebetso ea welding ea DC e phahame haholo ho feta AC.
Litšenyehelo
Hobane boleng ba pele ba DC welding current bo eketsehile haholo, nako ea sebele ea welding e khutsufatsoa ka ho feta 20%, 'me litšenyehelo tsa nako li bolokiloe haholo.
Leha ho le joalo, ka litšenyehelo tsa mochine oa ho tjheseletsa, mochine oa ho tjheseletsa oa AC ke oona o ka sehloohong, 'me theko ea oona e ka' na ea e-ba ea kakaretso kapa e ka tlaase ho mochine oa DC. Haeba u na le tekanyetso e fokolang ea ho reka mochine oa welding, joale mochine oa AC le oona ke khetho e ntle.
Paballo ea Matla
Litlhoko tsa phepelo ea matla a fektheri li tlase, ke hoo e ka bang 2/3 feela ea AC welder, leha matla a phepelo ea motlakase a fetoha, mochini oa welding oa DC o ntse o khona ho laola hantle hona joale oa welding. Ka hona, tšebeliso ea matla ea mochine oa welding oa DC e fokotsehile haholo, 'me ho feta 40% ho boloka matla ho fihleloa.
Tšireletso ea Tikoloho
DC welding ke mokhoa o motala o tlosang tšilafalo ea phepelo ea motlakase, ha o hloke phepelo ea motlakase o arohaneng, mme o ka sebelisoa le sistimi ea taolo ea liroboto. Ac welding e na le tšusumetso e kholo ho marang-rang a matla, 'me ho bonolo ho silafatsa phepelo ea motlakase.
Kakaretso
Ka kakaretso, welding ea DC e phahametse ea AC ka likarolo tse ngata. Haeba u na le budget e lekaneng, u tlameha ho khetha DC welding. Ntle le moo, haeba o hloka ho cheselletsa lihlahisoa tse nang le litlhoko tsa boleng bo holimo, mochini oa DC le ona ke khetho ea hau e ntle ka ho fetisisa.
Nako ea poso: Jul-30-2024
