Vuam txoj cai ntawm Shielded Hlau Arc Vuam (SMAW)

SMAW, tseem hu ua electrode arc vuam, yog ib txoj kev fusion vuam txoj kev uas lub arc yog induced los ntawm electrode thiab vuam qhov chaw yog melted los ntawm arc tshav kub.Nws yog feem ntau siv thiab siv vuam txoj kev tam sim no.

Arc yog ib qho phenomenon ntawm huab cua conduction.Lub vuam arc yog ib qho muaj zog thiab tsis tu ncua qhov tshwm sim tshwm sim hauv cov roj nruab nrab ntawm cov electrode thiab cov khoom ua haujlwm.Thaum lub sij hawm welding txheej txheem, cov electrode thiab welding yog feem txuas nrog ob lub electrodes ntawm vuam fais fab.Thaum lub vuam tseem ceeb ntawm cov electrode tiv tauj rau saum npoo ntawm qhov vuam, lub voj voog tau qhib, thiab qhov hluav taws xob luv luv yog tsim nyob rau tib lub sijhawm.Txij li thaum muaj qee qhov kev tiv thaiv ntawm kev sib cuag, raws li Q = I2Rt, cov cua kub ntau yuav raug tsim nyob rau ntawd, thiab cov cua sov yuav sai sai thiab yaj cov kev sib cuag.Thaum lub electrode yog lifted los ntawm 2 ~ 4 hli, cov roj nruab nrab ntawm cov electrode thiab cov vuam yog ionized, ua conductive electrons thiab zoo ions.Nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb, cov electrons txav mus rau lub anode, thiab cov ions zoo txav mus rau cathode.Lawv sib tsoo thiab recombine tsis tu ncua, hloov lub zog kinetic rau hauv lub zog hluav taws xob, yog li tsim lub teeb muaj zog thiab kub kub, thiab tsim ib qho arc ntawm qhov kawg ntawm cov electrode thiab cov vuam.

Lub arc melts qhov kawg ntawm cov electrode thiab cov khoom sib txuas ntawm tib lub sijhawm.Lub vuam hlau melts los ua ib lub pas dej molten, thiab cov hlau electrode melts los ua ib tee dej.Cov molten droplets nkag mus rau hauv lub pas dej molten nyob rau hauv qhov kev txiav txim ntawm lub ntiajteb txawj nqus thiab arc tshuab quab yuam, fuse nrog cov hlau ntawm weldment, thiab tsim ib tug weld tom qab solidification.Thaum lub sij hawm vuam txheej txheem, txheej txheej melts los ua slag thiab ib tug loj npaum li cas ntawm cov roj yog generated, uas tiv thaiv thiab metallurgically kho cov molten pas dej ua ke hlau.

Lub vuam arc muaj peb ntu: thaj chaw cathode, thaj chaw anode thiab thaj chaw arc.Lub cheeb tsam cathode emits electrons, thiab qhov kub thiab txias yog tsawg, txog 2400K;thaj chaw anode txais electrons, thiab qhov kub thiab txias, txog 2600K;qhov nruab nrab kub ntawm qhov arc kem cheeb tsam yog qhov siab tshaj plaws, txog 6000 ~ 8000K.

Thaum siv DC arc vuam fais fab qhov chaw (xws li arc vuam rectifier) ​​​​rau vuam, muaj ob txoj kev sib txuas: kev sib txuas zoo thiab kev sib txuas rov qab.Kev sib txuas zoo yog txoj kev sib txuas uas cov electrode txuas nrog qhov tsis zoo electrode thiab lub workpiece txuas nrog qhov zoo electrode.Txij li thaum qhov zoo electrode txais cov hluav taws xob thiab tsim hluav taws xob ntau dua, qhov vuam yog yooj yim rau kev nkag mus, yog li txoj kev sib txuas no feem ntau siv rau vuam thicker workpieces.Kev sib txuas rov qab yog txoj kev sib txuas uas cov electrode txuas nrog rau qhov zoo electrode thiab lub workpiece txuas nrog qhov tsis zoo electrode.Txij li thaum tshav kub generated los ntawm cov electrons emitted los ntawm qhov tsis zoo electrode yog tsawg, lub vuam tsis yooj yim rau hlawv, yog li no txoj kev sib txuas yog feem ntau siv rau vuam nyias workpieces.

Lub tshav kub tsim los ntawm vuam arc yog proportional rau cov khoom ntawm lub arc voltage thiab vuam tam sim no (piv txwv li, Q = IUt).Feem ntau, qhov hluav taws xob nruab nrab ntawm cov vuam thiab cov electrode thaum lub arc yog ruaj khov yog hu ua arc voltage, thiab qhov hluav taws xob arc feem ntau yog nyob rau hauv thaj tsam ntawm 20 ~ 35V.Vim hais tias lub arc voltage hloov me ntsis, lub arc tshav kub feem ntau yog kho los ntawm kev kho cov vuam tam sim no nyob rau hauv ntau lawm.

electrode, electrodes, vuam, vuam electrode, vuam electrodes, vuam pas nrig, vuam pas nrig, vuam electrode nqi, electrode vuam, vuam pas nrig Hoobkas nqi, vuam stick, vuam sticks, vuam sticks, Tuam Tshoj vuam pas nrig, nplaum electrode, vuam consumables, vuam Consumable, Tuam Tshoj electrode, vuam electrodes Tuam Tshoj, carbon steel vuam electrode, carbon steel vuam electrodes, vuam electrode Hoobkas, Tuam Tshoj Hoobkas vuam electrode, Tuam Tshoj vuam electrode, Tuam Tshoj vuam pas nrig, vuam pas nrig nqe, vuam khoom, wholesale vuam khoom, thoob ntiaj teb vuam khoom , arc vuam khoom, vuam khoom, arc vuam, hlau vuam, yooj yim arc vuam electrode, arc vuam electrode, arc vuam electrodes, ntsug vuam electrode, nqe vuam electrodes, pheej yig vuam electrode, kua qaub vuam electrodes, alkaline vuam electrode, cell Vuam electrode, Tuam Tshoj vuam electrodes, Hoobkas electrode, me me vuam electrodes, vuam cov ntaub ntawv, vuam khoom, vuam qws khoom, vuam electrode tuav, npib tsib xee vuam pas nrig, j38.12 e6013, vuam pas nrig e7018-1, vuam pas electrode, vuam pas nrig 6010, vuam electrode e7010, vuam pas nrig e7018, vuam electrode e6011, vuam qws e7018, vuam electrodes 7018, vuam electrodes e7018, vuam qws 6013, vuam rods 6010601 welding3 qws, 6010 vuam electrode, 6011 vuam pas nrig, 6011 vuam electrodes, 6013 vuam pas nrig, 6013 vuam pas nrig, 6013 vuam electrode, 6013 vuam electrodes, 7024 vuam pas nrig, 7016 vuam pas nrig, 7018 vuam electrode, 7018 vuam pas nrig, 7018 vuam qws , vuam electrode e7016, e6010 vuam pas nrig, e6011 vuam pas nrig, e6013 vuam pas nrig, e7018 vuam pas nrig, e6013 vuam electrode, e6013 vuam electrodes, e7018 vuam electrode, e7018 vuam electrodes1J4 vuam, J4 vuam electrodes, 2, lag luam wholesale e6010, wholesale E6011, wholesale e6013, wholesale e7018, zoo tshaj vuam electrode, zoo tshaj plaws vuam electrode J421, stainless hlau vuam electrode, stainless hlau vuam pas nrig, stainless hlau electrode, SS vuam electrode, vuam rods e3070, vuam 3 rode 3 electrode , e316l 16 vuam electrodes, cam khwb cia hlau vuam electrode,aws Eni-Ci,aws Enife-Ci, surfacing vuam, nyuaj ntsia hlau vuam qws, nyuaj surfacing vuam, hardfacing vuam, vuam, vuam, vautid vuam, bohler vuam, millerco welding, atlantic vuam, vuam, flux hmoov, vuam flux, vuam hmoov, vuam electrode flux khoom, vuam electrode flux, vuam electrode khoom, tungsten electrode, tungsten electrodes, vuam hlau, argon arc vuam, mig vuam, tig vuam, roj arc welding, roj arc vuam, hluav taws xob yog vuam, hluav taws xob arc vuam, arc vuam pas nrig, carbon arc vuam, e6013 vuam pas nrig siv, hom vuam electrodes, flux core vuam, hom electrodes hauv vuam, vuam khoom, vuam hlau, hlau welding, shielded hlau arc vuam, txhuas vuam, vuam txhuas nrog mig, txhuas mig vuam, yeeb nkab vuam, vuam hom, hom vuam pas nrig, txhua hom vuam, vuam pas nrig hom, 6013 vuam pas nrig amperage, vuam pas nrig electrodes, vuam electrode specification, vuam electrode classification, vuam electrode aluminium, vuam electrode txoj kab uas hla, me me hlau vuam, stainless hlau vuam, e6011 vuam pas nrig siv, vuam rods qhov ntau thiab tsawg, vuam rods nqe, vuam electrodes loj,aws e6013,aws e7018,aws er70s-6, stainless hlau welding hlau, stainless hlau mig vuam hlau, tig vuam hlau, qis temp vuam pas nrig, 6011 vuam pas nrig amperage, 4043 vuam pas nrig, cam khwb cia hlau vuam pas nrig, western vuam academy, sanrico vuam rods, txhuas vuam, txhuas vuam pas nrig, cov khoom, vuam tech, vuam Hoobkas