Guhitamo no gutegura tungsten electrode ya GTAW

Guhitamo no gutegura tungsten electrode ya GTAW ningirakamaro kugirango uhindure ibisubizo kandi wirinde kwanduza no gukora.Amashusho
Tungsten nicyuma kidasanzwe gikoreshwa mugukora gaz tungsten arc gusudira (GTAW) electrode.Inzira ya GTAW ishingiye ku gukomera nubushyuhe bwo hejuru bwa tungsten kugirango yimure imiyoboro yo gusudira kuri arc.Ahantu ho gushonga kwa tungsten ni hejuru cyane mubyuma byose, kuri dogere selisiyusi 3,410.
Izi electrode zidakoreshwa ziza mubunini nuburebure butandukanye, kandi zigizwe na tungsten yera cyangwa ibivanze bya tungsten nibindi bintu bidasanzwe byubutaka hamwe na oxyde.Guhitamo electrode ya GTAW biterwa nubwoko nubunini bwa substrate, kandi niba guhinduranya amashanyarazi (AC) cyangwa amashanyarazi (DC) akoreshwa mu gusudira.Ninde murimyiteguro itatu yanyuma uhitamo, ifatanye, yerekanwe, cyangwa yaciwe, nayo ningirakamaro mugutezimbere ibisubizo no kwirinda kwanduza no gukora.
Buri electrode ifite ibara ryanditse kugirango ikureho urujijo kubwoko bwayo.Ibara rigaragara hejuru ya electrode.
Electrode yuzuye ya tungsten (AWS itondekanya EWP) irimo tungsten 99,50%, ifite igipimo kinini cyo gukoresha amashanyarazi yose, kandi muri rusange ihendutse kuruta electrode.
Izi electrode zigize isuku nziza iyo zishyushye kandi zitanga arc nziza ihamye yo gusudira AC hamwe numuraba uringaniye.Tungsten yuzuye kandi itanga arc nziza ituje yo gusudira AC sine, cyane cyane kuri aluminium na magnesium.Mubisanzwe ntabwo ikoreshwa mugusudira DC kuko idatanga arc ikomeye ikomeye itangirana na thorium cyangwa cerium electrode.Ntabwo byemewe gukoresha tungsten yera kumashini ishingiye kuri inverter;kubisubizo byiza, koresha cerium ityaye cyangwa lanthanide electrode.
Thorium tungsten electrode (AWS itondekanya EWTh-1 na EWTh-2) irimo byibura tungsten 97,30% na 0.8% kugeza kuri 2,20% thorium.Hariho ubwoko bubiri: EWTh-1 na EWTh-2, burimo 1% na 2%.Kubaha.Bakunze gukoreshwa na electrode kandi batoneshwa kubuzima bwabo burambye no kuborohereza gukoresha.Thorium itezimbere ubuziranenge bwa elegitoronike ya electrode, bityo igahindura arc itangira kandi ikemerera ubushobozi bwo gutwara ibintu byinshi.Electrode ikora munsi yubushyuhe bwayo bwo gushonga, igabanya cyane igipimo cyikoreshwa kandi ikuraho drift ya arc, bityo igatezimbere.Ugereranije nizindi electrode, thorium electrode ibika tungsten nkeya muri pisine yashongeshejwe, bityo bigatera umwanda muke.
Izi electrode zikoreshwa cyane cyane muburyo bwo gusudira bwa electrode itari nziza (DCEN) yo gusudira ibyuma bya karubone, ibyuma bitagira umwanda, nikel na titanium, ndetse no gusudira kwa AC bidasanzwe (nka progaramu ya aluminiyumu yoroheje).
Mugihe cyo gukora, thorium ikwirakwizwa neza muri electrode, ifasha tungsten kugumana impande zayo zikarishye nyuma yo gusya-ubu ni bwo buryo bwiza bwa electrode yo gusudira ibyuma bito.Icyitonderwa: Thorium ikora radio, ugomba rero guhora ukurikiza umuburo wuwabikoze, amabwiriza nurupapuro rwumutekano wibikoresho (MSDS) mugihe ubikoresha.
Cerium tungsten electrode (AWS itondekanya EWCe-2) irimo byibura tungsten 97,30% na cerium 1,80% kugeza kuri 2,20%, kandi yitwa 2% cerium.Izi electrode zikora neza muri DC gusudira mugihe gito, ariko irashobora gukoreshwa muburyo bwa AC.Hamwe na arc nziza cyane itangirira kuri amperage nkeya, cerium tungsten irazwi cyane mubikorwa nka gari ya moshi no gukora imiyoboro, gutunganya ibyuma, no gukora birimo ibice bito kandi byuzuye.Kimwe na thorium, nibyiza gukoreshwa mugusudira ibyuma bya karubone, ibyuma bitagira umwanda, nikel alloys na titanium.Rimwe na rimwe, irashobora gusimbuza 2% thorium electrode.Ibikoresho byamashanyarazi ya cerium tungsten na thorium biratandukanye gato, ariko abasudira benshi ntibashobora kubitandukanya.
Gukoresha amperage yo hejuru ya cerium electrode ntabwo byemewe, kuko amperage yo hejuru izatera okiside kwimuka vuba mumashanyarazi, ikuraho ibirimo okiside kandi itesha agaciro ibyiza byakozwe.
Koresha inama zerekanwe kandi / cyangwa zaciwe (kubwoko bwa tungsten, cerium, lanthanum na thorium) muburyo bwo gusudira AC na DC.
Lanthanum tungsten electrode (Ibyiciro bya AWS EWLa-1, EWLa-1.5 na EWLa-2) irimo byibura tungsten 97.30% na 0.8% kugeza kuri 2,20% lanthanum cyangwa lanthanum, kandi yitwa EWLa-1, EWLa-1.5 na EWLa-2 ishami rya Lanthanum. Bya Ibintu.Izi electrode zifite ubushobozi buhebuje bwo gutangira arc, igipimo gito cyo gutwika, umutekano mwiza wa arc hamwe nibiranga ingoma nziza-byinshi mubyiza bimwe na cerium electrode.Lanthanide electrode nayo ifite imiterere ya 2% thorium tungsten.Rimwe na rimwe, lanthanum-tungsten irashobora gusimbuza thorium-tungsten nta gihinduka kinini muburyo bwo gusudira.
Niba ushaka kunonosora ubushobozi bwo gusudira, lanthanum tungsten electrode niyo guhitamo neza.Birakwiriye AC cyangwa DCEN hamwe ninama, cyangwa birashobora gukoreshwa hamwe na AC sine wave power power.Lanthanum na tungsten birashobora kugumana neza cyane, ibyo bikaba akarusho ko gusudira ibyuma nicyuma kuri DC cyangwa AC ukoresheje amashanyarazi ya kare.
Bitandukanye na thorium tungsten, izo electrode zirakwiriye gusudira AC kandi, nka cerium electrode, yemerera arc gutangira kandi ikabikwa kuri voltage yo hasi.Ugereranije na tungsten yera, kubunini bwa electrode yatanzwe, kongeramo oxyde ya lanthanum byongera ubushobozi bwo gutwara ibintu hafi 50%.
Zirconium tungsten electrode (AWS itondekanya EWZr-1) irimo byibura tungsten 99,10% na 0.15% kugeza 0.40% zirconium.Zirconium tungsten electrode irashobora kubyara arc ihamye cyane kandi ikarinda tungsten.Ni amahitamo meza yo gusudira AC kuko igumana inama ifatika kandi ifite imbaraga zo kurwanya umwanda.Ubu ubushobozi bwo gutwara buringaniye cyangwa burenze thorium tungsten.Ntabwo byemewe gukoresha zirconium yo gusudira DC mubihe byose.
Isi idasanzwe ya tungsten electrode (AWS ishyirwa mu bikorwa EWG) irimo inyongeramusaruro idasanzwe ya oxyde yisi cyangwa ivangwa rya oxyde itandukanye, ariko uwabikoze agomba kwerekana buri kintu cyongeweho nijanisha ryacyo.Ukurikije inyongeramusaruro, ibisubizo byifuzwa birashobora kubamo kubyara arc ihamye mugihe cya AC na DC, ubuzima burebure kuruta thorium tungsten, ubushobozi bwo gukoresha electrode ntoya ya diameter mumurimo umwe, hamwe no gukoresha electrode zingana nubunini Bukuru, na tungsten nkeya.
Nyuma yo guhitamo ubwoko bwa electrode, intambwe ikurikira ni uguhitamo imyiteguro yanyuma.Amahitamo atatu ni serefike, yerekanwe kandi yaciwe.
Inama ya spherical isanzwe ikoreshwa kuri electrode nziza ya tungsten na zirconium kandi irasabwa kubikorwa bya AC kuri sine wave hamwe nimashini gakondo ya GTAW.Kugirango uhindure neza impera ya tungsten, koresha gusa amashanyarazi ya AC asabwa kumurambararo wa electrode (reba Ishusho 1), hanyuma umupira uzashyirwaho kumpera ya electrode.
Diameter yimpera ya serefegitire ntigomba kurenza inshuro 1.5 diametero ya electrode (urugero, electrode ya 1/8-igomba gukora impera ya diameter ya 3/16).Umwanya munini ku isonga rya electrode ugabanya arc guhagarara.Irashobora kandi kugwa ikanduza gusudira.
Inama na / cyangwa inama zaciwe (kubwoko bwa tungsten, cerium, lanthanum na thorium) zikoreshwa muburyo bwo gusudira AC na DC.
Gusya tungsten neza, koresha uruziga rusya rwabugenewe rwo gusya tungsten (kugirango wirinde kwanduza) hamwe nuruziga rusya rukozwe muri borax cyangwa diyama (kugirango urwanye ubukana bwa tungsten).Icyitonderwa: Niba urimo gusya thorium tungsten, nyamuneka urebe neza kugenzura no gukusanya ivumbi;sitasiyo yo gusya ifite sisitemu ihagije yo guhumeka;hanyuma ukurikize umuburo, amabwiriza na MSDS.
Gusya tungsten ku ruziga kuri dogere 90 (reba Ishusho 2) kugirango umenye neza ko ibimenyetso byo gusya byiyongera ku burebure bwa electrode.Kubikora birashobora kugabanya kuba hari imisozi kuri tungsten, ishobora gutera arc gutemba cyangwa gushonga muri pisine isudira, bikaviramo kwanduza.
Mubisanzwe, urashaka gusya icyuma kuri tungsten kugeza kurenza inshuro 2,5 z'umurambararo wa electrode (urugero, kuri electrode ya 1/8-cm, hejuru yubutaka ni 1/4 kugeza 5/16 santimetero).Gusya tungsten muri cone birashobora koroshya inzibacyuho ya arc itangira, kandi ikabyara arc yibanze cyane, kugirango ubone imikorere yo gusudira neza.
Iyo gusudira kubikoresho bito (0.005 kugeza 0.040 santimetero) kumuyoboro muke, nibyiza gusya tungsten kumwanya.Impanuro ituma imiyoboro yo gusudira yanduzwa muri arc yibanze kandi igafasha gukumira ihindagurika ryibyuma bito nka aluminium.Ntabwo byemewe gukoresha tungsten yerekanwe kubisanzwe biriho kuko umuyaga mwinshi uzahanagura hejuru ya tungsten kandi bigatera kwanduza pisine.
Kubisanzwe murwego rwohejuru, nibyiza gusya inama yaciwe.Kugirango ubone iyi shusho, tungsten nubutaka bwa mbere kuri taper yasobanuwe haruguru, hanyuma ikamanuka kuri 0.010 kugeza 0.030.Ubutaka bunini kumpera ya tungsten.Ubu butaka buringaniye bufasha kurinda tungsten kwimura muri arc.Irinda kandi gushiraho imipira.
WELDER, yahoze yitwa Practical Welding Uyu munsi, yerekana abantu nyabo bakora ibicuruzwa dukoresha kandi dukora buri munsi.Iki kinyamakuru kimaze imyaka irenga 20 gikorera umuryango wo gusudira muri Amerika ya Ruguru.

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