Welding inogona kushandisa AC kana DC welding muchina.Paunenge uchishandisa DC welding muchina, pane yakanaka yekubatanidza uye reverse yekubatanidza.Zvinhu zvakadai se electrode inoshandiswa, mamiriro emidziyo yekuvaka, uye mhando yewelding inofanirwa kutariswa.
Kuenzaniswa neAC magetsi emagetsi, DC magetsi anogona kupa yakagadzika arc uye yakatsetseka yekudonhedza kuendesa.-Kamwe iyo arc yadzimwa, iyo DC arc inogona kuchengetedza kuenderera kunopisa.
Paunenge uchishandisa AC simba welding, nekuda kwekuchinja kwezvino uye voltage direction, uye arc inoda kudzima uye kutsva zvakare ka120 pasekondi, arc haigoni kupisa nguva dzose uye yakadzikama.
Kana iri low welding current, iyo DC arc ine yakanaka wetting mhedzisiro payakanyungudutswa weld simbi uye inokwanisa kudzora saizi ye weld bead, saka yakakodzera kwazvo welding zvidimbu zvitete.DC simba rinonyanya kukodzera kumusoro uye vertical welding pane AC simba nekuti iyo DC arc ipfupi.
Asi dzimwe nguva kuvhuvhuta kwearc yeDC magetsi idambudziko rakatanhamara, uye mhinduro nderekushandura kune AC magetsi ekupa.Kune AC uye DC mbiri-chinangwa maelectrodes akagadzirirwa AC kana DC simba welding, akawanda welding application anoshanda zvirinani pasi peDC simba mamiriro.
(1)Ordinary structural simbi welding
Kune akajairwa simbi maelectrodes uye asidhi electrode, ese AC uye DC anogona kushandiswa.Paunenge uchishandisa DC welding muchina kupinza mahwendefa matete, zviri nani kushandisa DC reverse yekubatanidza.
Kazhinji, yakananga ikozvino yekubatanidza inogona kushandiswa kune gobvu ndiro welding kuti iwane kupinza kwakanyanya.Ehe, reverse yakananga yazvino yekubatanidza inogoneka zvakare, asi yekutsigira welding yemahwendefa akakora ane grooves, zviri nani kushandisa yakananga ikozvino reverse yekubatanidza.
Maelectrode ekutanga anowanzo shandisa DC reverse connection, iyo inogona kuderedza porosity uye spatter.
(2)Yakanyungudutswa argon arc welding (MIG welding)
Metal arc welding inowanzo shandisa DC reverse yekubatanidza, iyo isingangotsigire arc, asi zvakare inobvisa iyo oxide firimu pamusoro peiyo weldment kana welding aluminium.
(3) Tungsten argon arc welding (TIG welding)
Tungsten argon arc welding yezvikamu zvesimbi, nickel uye alloys ayo, mhangura uye alloys ayo, mhangura uye alloys ayo anogona chete kubatanidzwa neyakananga ikozvino.Chikonzero ndechekuti kana iyo DC yekubatanidza yakadzoserwa uye tungsten electrode yakabatana kune yakanaka electrode, tembiricha yeiyo yakanaka electrode ichave yakakwirira, kupisa kuchava kwakawanda, uye tungsten electrode ichanyungudika nekukurumidza.
Kunyanya kukurumidza kunyunguduka, kusakwanisa kuita kuti arc ipise zvakadzikama kwenguva yakareba, uye tungsten yakanyungudutswa inowira mudziva rakanyungudutswa ichaita kuti tungsten ibatanidzwe uye kuderedza kunaka kweiyo weld.
(4)CO2 gasi yakadzivirirwa welding (MAG welding)
Kuti uchengetedze arc yakagadzikana, iyo yakanakisa weld chimiro, uye kuderedza spatter, CO2 gasi shielded welding inowanzoshandisa DC reverse connection .Zvisinei, pakatarisana nekuisa uye kugadzirisa welding yesimbi yakakandwa, zvakakosha kuwedzera simbi yekuisa chiyero uye kuderedza. kupisa kweiyo workpiece, uye DC yakanaka yekubatanidza inowanzoshandiswa.
Iyo Stainless simbi electrode inonyanya kudzoserwa DC.Kana iwe usina DC welding muchina uye zvinodiwa zvemhando hazvina kunyanya kukwirira, unogona kushandisa Chin-Ca mhando electrode kusveta neAC welding muchina.
(6)Gadzirisa welding yesimbi yakakandwa
Iyo yekugadziridza welding yesimbi yakakandwa zvikamu zvinowanzo tora iyo DC reverse yekubatanidza nzira.Munguva yewelding, iyo arc yakagadzikana, spatter idiki, uye kudzika kwekupinda hakuna kudzika, izvo zvinongosangana nezvinodiwa zveyakaderera dilution rate yekukanda simbi kugadzirisa welding kuti kuderedze kuputika kuumbwa.
(7) Yakanyura arc otomatiki weld
Yakanyura arc otomatiki welding inogona kuvezwa neAC kana DC magetsi emagetsi.Iyo inosarudzwa zvinoenderana nechigadzirwa welding zvinodiwa uye flux mhando.Kana nickel-manganese yakaderera-silicon flux ikashandiswa, DC magetsi emagetsi welding anofanirwa kushandiswa kuve nechokwadi kugadzikana kwearc kuwana kupinda kukuru.
(8) Kuenzanisa pakati pe AC welding uye DC welding
Kuenzaniswa neAC magetsi emagetsi, DC magetsi anogona kupa yakagadzika arc uye yakatsetseka yekudonhedza kuendesa.-Kamwe iyo arc yadzimwa, iyo DC arc inogona kuchengetedza kuenderera kunopisa.
Paunenge uchishandisa AC simba welding, nekuda kwekuchinja kwezvino uye voltage direction, uye arc inoda kudzima uye kutsva zvakare ka120 pasekondi, arc haigoni kupisa nguva dzose uye yakadzikama.
Kana iri low welding current, iyo DC arc ine yakanaka wetting mhedzisiro payakanyungudutswa weld simbi uye inokwanisa kudzora saizi ye weld bead, saka yakakodzera kwazvo welding zvidimbu zvitete.DC simba rinonyanya kukodzera kumusoro uye vertical welding pane AC simba nekuti iyo DC arc ipfupi.
Asi dzimwe nguva kuvhuvhuta kwearc yeDC magetsi idambudziko rakatanhamara, uye mhinduro nderekushandura kune AC magetsi.Ye AC uye DC mbiri-chinangwa maelectrodes akagadzirirwa AC kana DC simba welding, akawanda welding application anoshanda zvirinani pasi peDC simba mamiriro.
Mumanyorero arc welding, AC welding michina uye mimwe michina yekuwedzera yakachipa, uye inogona kudzivirira zvinokuvadza zve arc kuvhuvhuta simba zvakanyanya sezvinobvira.Asi pamusoro pemitengo yakaderera yemidziyo, welding ine AC simba haina kuita senge DC simba.
Arc welding magetsi masosi (CC) ane mawere ekudonhedza maitiro akanyatsokodzera manyore arc welding.Shanduko yemagetsi inoenderana neshanduko yemazuva ano inoratidza kuderera zvishoma nezvishoma kwezvino sezvo kureba kwearc kunowedzera.Hunhu uhwu hunoganhura iyo yakanyanya arc current kunyange kana welder ichidzora saizi yedziva rakanyungudutswa.
Kuchinja nguva dzose mukureba kwearc hakudzivisiki sezvo welder inofambisa electrode pamwe chete neweldment, uye kunyura hunhu hwearc welding simba sosi inovimbisa kugadzikana kwearc panguva yekuchinja uku.
Nguva yekutumira: May-25-2023