I-DC Welding vs AC Welding: Ngubani ophuma Phezulu?

I-welding yangoku (DC) kunye ne-alternating current (AC) i-welding zimbini zisetyenziswa ngokuqhelekileyoiinkqubo welding, yaye ngamnye uneempawu zakhe. Kweli nqaku, siza kuhlalutya ukuba yintoni umahluko phakathi kwe-DC welding kunye ne-AC welding kwintsimi yeukumelana welding, yaye kukuphi ukuwelda okuyingenelo ngakumbi? Oku kuya kukunceda ukhethe phakathi kwezi zimbini.

Imigaqo yokusebenza:

MFDC/Inverter Welding Machine:

Okokuqala,isigaba sesithathuAmandla ombane e-AC adlula kwizilungisi zokucoca.

Okwesibini,IGBTiiswitshi ziguqula langoku zibe yi-mid-frequency yangoku ye-1000 Hz kwaye iyigqithisele kwi-i-welding transformer.

Ekugqibeleni, iidiode zokulungisa amandla aphezulu zikhupha i-welding yangoku njenge-stable current ngqo (DC).

Umatshini wokuWelding we-AC:

Igalelo lamandla yi-AC, leyo, emva kokudlula kwi-switch switch, ingena kwisiphaluka esiphambili kunye nolawulo lwesiphaluka.

I-transformer ibeka phantsi i-AC ephezulu ye-voltage ukuya kwi-AC ye-low-voltage efanelekile ukuwelda. I-AC yangoku itshintshana phakathi kwe-positive kunye ne-negative, ivelisa ubushushu njengoko idlula kwintonga ye-welding kunye ne-workpiece, ngaloo ndlela inyibilika i-welding material kunye nokuphumeza ukuwelda.

Nguwuphi umahluko phakathi kwe-DC welding kunye ne-AC welding?

Uzinzo

Ukuwelda kwe-DC yenye yeemveliso zokuwelda ezivunyiweyo kumazwe ngamazwe kunye nozinzo oluqinileyo lwe-welding. Iiparamitha zenkqubo ye-welding zinobungane, i-ADAPTS yangoku yesibini ukuya kuluhlu olubanzi, kwaye ngokwenene igcina ikhoyo ngoku, enethemba elibanzi lesicelo kune-AC welding.
I-DC welding current ihlengahlengiswa kwizinga le-1000 ngamaxesha ngesibini, ifikelela ukuchaneka kwe-millisecond, engaphezulu kwamaxesha angama-20 ngaphezu kokuchaneka kwe-welders yendabuko ye-AC.
I-DC welding ayichatshazelwa yimilo kunye nempahla ye-workpiece, ukuphelisa ukulahlekelwa kwe-inductance. Umatshini we-welding we-AC kulula ukuguqula i-welding okanye ukuqina okungahambi kakuhle ngenxa yeenguqu kwimilo yezinto zokusebenza.

Weld Splash

Ubonelelo lwamandla eDC lukhupha eyona ndlela incinci yamaza ukunqanda ukothuka kwangoku kunye nokunciphisa ukutshiza ngexesha lewelding. Kodwa ukuwelda kwe-AC kwinkqubo ye-welding kuya kuvelisa i-spatter eninzi, kuchaphazela umgangatho weemveliso ze-welding.

Ukusebenza kakuhle kweWelding

I-welding power factor ye-DC welding machine ingaphezulu kwe-98%, kunye ne-welding power factor ye-AC ye-welding machine imalunga ne-60%, ebonisa ukuba ukusebenza kwe-DC welding kuphezulu kakhulu kune-AC.
Iindleko
Ngenxa yokuba ixabiso lokuqala le-DC welding yangoku linyuswe kakhulu, ixesha lokudibanisa lifinyeziwe ngaphezu kwe-20%, kwaye ixabiso lexesha ligcinwe kakhulu.
Nangona kunjalo, kwiindleko zomatshini we-welding, umatshini we-welding we-AC unamandla ngakumbi, kwaye ixabiso lawo linokuba kuphela ngokubanzi okanye ngaphantsi komatshini we-DC. Ukuba unohlahlo lwabiwo-mali olulinganiselwe lokuthenga umatshini we-welding, ngoko umatshini we-AC unokukhetha okulungileyo.

Ugcino lwamandla

Iimfuno zombane wefektri ziphantsi, kuphela malunga ne-2/3 ye-welder ye-AC, nokuba i-voltage yombane iyaguquguquka, i-DC welder ingakwazi ukulawula ngokuchanekileyo i-welding yangoku. Ke ngoko, ukusetyenziswa kwamandla omatshini we-DC welding kuncitshiswe kakhulu, kwaye ukonga amandla angaphezu kwama-40% kufezekiswa.

Ukhuseleko lokusiNgqongileyo

I-DC welding yindlela ye-welding eluhlaza ephelisa ukungcoliswa konikezelo lwamandla, ayifuni unikezelo lwamandla olwahlukileyo, kwaye ingasetyenziswa kunye nenkqubo yokulawula i-robot welding fixture. I-ac welding inempembelelo enkulu kwigridi yamandla, kwaye kulula ukungcolisa unikezelo lwamandla.

Isishwankathelo

Isishwankathelo, i-DC welding iphezulu kune-AC welding kwiinkalo ezininzi. Ukuba unebhajethi eyaneleyo, kuya kufuneka ukhethe i-DC welding. Ukongeza, ukuba ufuna ukuwelda iimveliso ezineemfuno ezikumgangatho ophezulu, umatshini weDC naye lolona khetho lwakho lungcono.