Direct tam sim no (DC) vuam thiab alternating tam sim no (AC) vuam yog ob feem ntau sivcov txheej txheem vuam, thiab lawv txhua tus muaj lawv tus yam ntxwv. Hauv tsab xov xwm no, peb yuav txheeb xyuas qhov sib txawv ntawm DC vuam thiab AC vuam hauv thaj tsam ntawmtsis kam vuam, thiab qhov twg vuam yog qhov zoo dua? Qhov no yuav pab koj xaiv ntawm ob.
Cov Cai Ua Haujlwm:
MFDC / Inverter Vuam Tshuab:
Ua ntej,peb-theemAC voltage dhau los ntawm rectifiers rau lim.
Thib ob,IGBTHloov pauv tam sim no mus rau hauv nruab nrab zaus tam sim no ntawm 1000 Hz thiab xa mus rauvuam transformer.
Thaum kawg, high-power rectifier diodes tso tawm cov vuam tam sim no raws li qhov ruaj khov tam sim no (DC).
AC Vuam Tshuab:
Lub zog tawm tswv yim yog AC, uas, tom qab dhau los ntawm lub hwj chim hloov, nkag mus rau hauv lub ntsiab Circuit Court thiab tswj Circuit Court.
Lub transformer nqis los ntawm high-voltage AC mus rau qhov tsawg-voltage AC haum rau vuam. AC tam sim no hloov ntawm qhov zoo thiab qhov tsis zoo, ua kom muaj cua sov thaum nws dhau los ntawm vuam pas nrig thiab cov khoom ua haujlwm, yog li melting cov khoom siv vuam thiab ua tiav vuam.
Dab tsi yog qhov txawv ntawm DC vuam thiab AC vuam?
Kev ruaj ntseg
DC vuam yog ib qho ntawm kev lees paub thoob ntiaj teb high-end kuj vuam cov khoom uas muaj zog vuam ruaj khov. Cov txheej txheem vuam tsis yog tus phooj ywg, qhov thib ob tam sim no ADAPTS mus rau ntau yam, thiab tswj xyuas qhov tam sim no, uas muaj qhov kev thov dav dua li AC vuam.
DC vuam tam sim no raug kho ntawm tus nqi ntawm 1000 zaug ib ob, ncav cuag millisecond raug, uas yog ntau tshaj 20 npaug ntawm qhov tseeb ntawm cov tsoos AC welders.
DC vuam tsis cuam tshuam los ntawm cov duab thiab cov khoom ntawm lub workpiece, tshem tawm inductance poob. AC welding tshuab yog yooj yim rau vuam deformation los yog tsis zoo firmness vim kev hloov ntawm cov duab ntawm cov khoom workpiece.
Weld Splash
DC fais fab mov tso tawm qhov tsawg tshaj plaws waveform kom tsis txhob muaj kev poob siab tam sim no thiab txo qis splashing thaum vuam. Tab sis AC vuam nyob rau hauv cov txheej txheem vuam yuav tsim ntau spatter, cuam tshuam qhov zoo ntawm vuam khoom.
Vuam efficiency
Lub vuam fais fab ntawm DC vuam tshuab yog ntau tshaj 98%, thiab qhov vuam fais fab ntawm AC vuam tshuab yog li 60%, qhia tias DC vuam efficiency yog siab dua AC.
Nqi
Vim tias tus nqi pib ntawm DC vuam tam sim no tau nce ntau, lub sij hawm vuam tiag tiag yog luv luv los ntawm ntau dua 20%, thiab lub sij hawm tus nqi tau txais txiaj ntsig zoo heev.
Txawm li cas los xij, nyob rau hauv tus nqi ntawm lub tshuab vuam, AC vuam tshuab yog qhov tseem ceeb dua, thiab nws cov nqi yuav tsuas yog qhov dav lossis txawm tias tsawg dua li DC tshuab. Yog tias koj muaj peev nyiaj tsawg los yuav lub tshuab vuam, ces lub tshuab AC kuj yog qhov kev xaiv zoo.
Kev txuag hluav taws xob
Cov kev cai rau lub Hoobkas fais fab mov yog tsawg, tsuas yog li ntawm 2/3 ntawm AC welder, txawm hais tias lub hwj chim mov voltage fluctuates, DC welder tseem tuaj yeem tswj cov vuam tam sim no. Yog li ntawd, lub zog siv ntawm DC vuam tshuab tau txo qis heev, thiab ntau dua 40% kev txuag hluav taws xob tau tiav.
Kev tiv thaiv ib puag ncig
DC welding yog ib txoj kev ntsuab vuam uas tshem tawm cov kab mob sib kis ntawm cov khoom siv hluav taws xob, tsis tas yuav muaj lub zog sib cais, thiab tuaj yeem siv nrog cov neeg hlau vuam fixture tswj system. Ac welding muaj qhov cuam tshuam loj heev ntawm daim phiaj hluav taws xob, thiab nws yooj yim rau kev ua qias tuaj rau lub hwj chim.
Cov ntsiab lus
Hauv cov ntsiab lus, DC vuam yog qhov zoo tshaj rau AC vuam hauv ntau yam. Yog tias koj muaj peev nyiaj txaus, ces koj yuav tsum xaiv DC vuam. Tsis tas li ntawd, yog tias koj xav tau cov khoom siv vuam nrog cov kev xav tau zoo, DC tshuab kuj yog qhov koj xaiv zoo tshaj.
Post lub sij hawm: Lub Xya hli ntuj-30-2024
