Qhov kev thov rau cov hlau thiab hlau hauv zej zog niaj hnub yog nce zuj zus. Hauv lub neej txhua hnub, ntau yam khoom siv ua los ntawm cov hlau, thiab ntau cov hlau tsis tuaj yeem muab pov tseg hauv ib zaug. Yog li no, qhov no xav tau ua tiav los ntawm vuam. Lub luag haujlwm ntawm cov electrode hauv cov txheej txheem ntawm cov xaim hluav taws xob yog qhov tseem ceeb heev.
Lub tshuab hluav taws xob vuam siv hlau yog lub kav hlau uas yog melted los ntawm hluav taws xob tam sim no thiab qhov kub thiab txias thaum lub sij hawm arc vuam. Qhov chaw vuam electrode feem ntau yog xaiv raws li cov khoom ntawm vuam workpiece. Vuam electrode tuaj yeem siv rau vuam tib hlau lossis nruab nrab ntawm hlau sib txawv Vuam.
Tus qauv ntawm electrode
Lub tshuab hluav taws xob yog tsim ntawm cov hlau txuas hlau sab hauv thiab ib txheej txheej nyob sab nraud. Cov duab ntawm vuam ntxhais yog cov hlau xaim nrog ib txoj kab uas hla thiab ntev. Lub luag haujlwm tseem ceeb ntawm vuam tub ntxhais yog coj los ua tam sim no kom sov thiab yaj nws. Nws melts ua ke los ua ib qho weld.
Cov vuam vuam siv cov khoom siv rau vuam feem ntau tuaj yeem faib ua cov pa roj carbon steel, alloy hlau thiab stainless hlau, tab sis txhawm rau ua kom tau raws li cov vuam kev xav tau, muaj qhov tshwj xeeb rau cov khoom siv thiab cov hlau ntawm vuam tub ntxhais, thiab tseem muaj qhov nruj kev xav tau rau cov ntsiab lus ntawm qee cov ntsiab lus hlau. Vim tias cov hlau muaj pes tsawg leeg ntawm cov tub ntxhais yuav cuam tshuam ncaj qha rau qhov zoo ntawm qhov txuas.
Muaj txheej txheej nyob rau sab nraud ntawm cov kab hluav taws xob, thiab txheej txheej txheej no hu ua txheej txheej, uas yog lub luag haujlwm tseem ceeb hauv kev siv hlau txuas. Yog tias qhov chaw ua haujlwm txuas tau ncaj qha nrog lub qhov cub hluav taws xob, lub tshuab huab cua thiab lwm yam yuav nkag mus rau hlau tsis muaj hlau, Tsis tas li ntawd cov tshuaj lom neeg yuav tshwm sim hauv cov hlau molten, uas yuav ncaj qha rau cov teeb meem zoo li pores thiab tawg hauv lub qhov hlau, thiab cuam tshuam ncaj qha lub zog ntawm weld. Cov txheej nrog cov ntsiab lus tshwj xeeb yuav lwj thiab yaj mus rau hauv cov pa sov. Thiab slag, tuaj yeem tiv thaiv huab cua nkag mus thiab txhim kho hlau kom zoo.
Cov txheej txheem ntawm cov xim suav nrog: silicic acid, fluoride, carbonate, oxide, organic, hlau alloy thiab lwm cov tshuaj ua hmoov, thiab lwm yam, uas tau ua los ntawm kev sib xyaw ua ke raws li qee cov qauv sib tov, thiab cov sib xyaw ntawm ntau hom hluav taws xob txheej txheej yog kuj sib txawv.
Feem ntau muaj ob txheej txheej nyob rau saum npoo ntawm cov tub ntxhais, thiab cov khoom tseem ceeb ntawm cov tsho tiv no ib txwm zoo ib yam.
Muaj peb hom sib xws, uas yog tus neeg sawv cev slag, lub tshuab hluav taws xob, thiab deoxidizer.
Slag flux yog hom sib txuas, uas tuaj yeem tiv thaiv lub hlau tsis muaj kua los ntawm cov khoom cua thaum cov electrode tsis yaj, yog li txhim kho qhov zoo ntawm vuam.
Cov pa roj ua rau tus neeg sawv cev tsuas yog tsim cov tshuaj xws li cov hmoov txhuv nplej siab thiab hmoov ntoo, thiab cov khoom no muaj qee qhov kev ua tau zoo.
Lub deoxidizer muaj li ntawm titanium hlau thiab manganese hlau. Feem ntau, cov khoom siv no tuaj yeem txhim kho qhov hnav tsis kam thiab tiv taus xeb ntawm cov hlau.
Tsis tas li ntawd, tseem muaj lwm hom txheej txheej nyob rau sab electrode, thiab cov lus sib xyaw thiab qib ntawm txhua yam yuav txawv.
Vuam pas nrig cov txheej txheem tsim tawm
Cov txheej txheem tsim ntawm vuam vuam yog tsim cov vuam tub ntxhais thiab npaj txheej raws li cov qauv tsim ntawm vuam vuam, thiab cov txheej txheem sib xyaw ntawm cov vuam vuam, kom cov vuam vuam tuaj yeem ua tau raws li qhov tsim qauv xav tau.
Ua ntej, lub vauj vaus kab hlau yog rub tawm los ntawm qhov chaw thawb, xeb ntawm qhov chaw ntawm lub nqaj hlau yog raug tshem tawm hauv lub tshuab, tom qab ntawd nws ncaj ncaj, thiab lub bar steel raug txiav rau qhov ntev ntawm cov electrode los ntawm tshuab.
Tom ntej, txheej txheej nyob rau saum npoo ntawm electrode xav tau npaj. Cov ntaub ntawv raw ntawm txheej yog sieved rau tshem tawm impurities, thiab tom qab ntawd muab nchuav rau hauv lub tshuab raws li kev faib ua feem. Ib phau ntawv ntxiv yog ntxiv rau, thiab txhua cov ntaub ntawv nyoos hmoov yog do los ntawm tshuab. Sib xyaw kom zoo.
Tso cov hmoov sib xyaw rau hauv lub pwm thiab nias nws mus rau hauv lub tog raj kheej zoo nrog lub voj ncig hauv nruab nrab tom qab nias los ntawm lub tshuab.
Muab cov roj nias ntawm ntau lub tog raj rau hauv lub tshuab, muab lub vuam tub ntxhais kom zoo zoo rau hauv qhov chaw nres nkoj noj ntawm lub tshuab, lub vuam co nkag rau hauv lub tshuab tig ntawm qhov chaw nres nkoj noj ntawm lub tshuab, thiab cov tub ntxhais vuam yog raug nyem los ntawm lub tshuab thaum nws hla los ntawm nruab nrab ntawm lub thoob. Lub hmoov yog tusyees txheej ntawm lub vuam tub ntxhais dhau, thiab nws dhau los ua txheej.
Thaum lub sijhawm txheej txheem ntawm cov electrode, tag nrho cov khoom tseem npog nrog txheej txheej. Txhawm rau ua kom yooj yim qhov clamping thiab kev ua tiav ntawm lub tshuab hluav taws xob, lub taub hau thiab tus tw ntawm lub electrode xav tau polished kom qhia tau cov tub ntxhais.
Tom qab cov xim pleev, thov cov xaim hluav taws xob tom qab sib tsoo lub taub hau thiab tus Tsov tus tw tau sib xyaw ntawm cov hlau thiab xa mus rau qhov cub kom qhuav.
Txhawm rau kom muaj peev xwm ua kom yooj yim paub qhov txawv thiab qauv ntawm cov vuam txuas, nws yog qhov tsim nyog yuav tsum tau luam tawm ntawm cov vuam nuv. Thaum lub zog txav ntawm txoj hlua hlau nyob ntawm txoj siv conveyor, txhua tus pas nrig vuam raug luam tawm los ntawm cov roj hmab luam tawm cov menyuam ntawm lub conveyor siv.
Cov ntawv luam tawm hluav taws xob tau ua tiav thiab tuaj yeem ntim rau kev muag khoom tom qab dhau qhov kev kuaj xyuas ntawm cov electrodes.
