Kumenya iby'ibanze ku bijyanye na electrodes za E7018 zifite hydrogen stick nkeya bishobora gufasha mu gusobanukirwa uburyo bwo kongera imikorere yazo, imikorere yazo n'uburyo zishobora gusudira.
Gusudira inkoni biracyari ingenzi mu mirimo myinshi yo gusudira, kimwe mu bituma ibikoresho bikoreshwa mu mirimo myinshi bikomeza kuba byiza, kandi ni kimwe mu byo abasudira benshi bazi neza. Ku bijyanye no gusudira inkoni, American Welding Society (AWS; Miami, FL) E7018 stick electrodes ni amahitamo asanzwe kuko atanga imiterere ikwiye ya mekanike na shimi ku bikorwa bitandukanye, hamwe n'urugero ruto rwa hydrogen mu gufasha gukumira gucika kw'ingufu za hydrogen.
Kumenya iby'ibanze ku bijyanye na electrode za E7018 zifite hydrogen stick nkeya bishobora gufasha mu gusobanukirwa imikorere yazo, imikorere yazo, n'uburyo zisudira. Muri rusange, electrode za E7018 zifite stick stick zitanga urwego ruto rworoshye kandi rufite arc nziza, ihamye kandi ituje. Izi miterere y'icyuma cyuzuza iha umukozi ushinzwe gusudira ububasha bwiza ku arc kandi zikagabanya gukenera gusukura nyuma yo gusudira - ibintu by'ingenzi mu ikoreshwa bisaba kwitabwaho cyane ku bwiza bwa weld n'uburyo ubushyuhe bwinjiramo, ndetse n'ibyo ku gihe ntarengwa.
Izi electrode zitanga igipimo cyiza cyo gushyiramo ibintu no kwinjira neza, bivuze ko abakora akazi ko gusudira bashobora kongeramo ibyuma byinshi byo gusudira mu gice runaka mu gihe runaka kurusha izindi electrode nyinshi zo mu bwoko bwa stick (nka E6010 cyangwa E6011), kandi bashobora kwirinda inenge zo gusudira nko kutagira aho zihurira. Kongeramo ibintu nk'ifu y'icyuma, manganese, na silikoni kuri izi electrode bitanga inyungu zidasanzwe, harimo (ariko bitagarukira gusa ku) ubushobozi bwo gusudira neza mu mwanda, imyanda, cyangwa ingano y'icyuma.
Gutangira no kongera gutangira neza arc, bifasha mu gukuraho ibibazo nk'ububobere mu ntangiriro y'ubuso bw'icyuma, ni inyungu y'inyongera ya electrode za E7018. Kugira ngo wongere ushyireho arc neza (wongere utangire arc), ni ngombwa kubanza gukuraho silicon deposit iri ku mpera ya electrode. Ariko, ni ngombwa kugenzura ibisabwa byose mbere yo gusudira, kuko amwe mu mategeko cyangwa inzira zitemerera kugabanya electrode za stick.
Nkuko byavuzwe mu cyiciro cyabo cya AWS, electrodes za E7018 zifata icyuma zitanga nibura imbaraga zo gukurura psi 70.000 (zagaragajwe na "70") kandi zishobora gukoreshwa mu myanya yose yo gusudira (zagaragajwe na "1"). "8" yerekeza ku gipfunyika cya hydrogen nke, ndetse n'uburyo bwo kwinjira hagati electrode itanga n'ubwoko ikenera kugira ngo ikore. Hamwe n'urwego rusanzwe rwa AWS, electrodes za E7018 zifata icyuma zishobora kugira izindi nyuguti nka "H4" na "H8" yerekeza ku gipimo cya hydrogen ishobora gukwirakwira mu byuma byuzuza icyuma muri fluid. Urugero, imiterere ya H4 igaragaza ko fluid ya hydrogène ifite mililitiro 4 cyangwa munsi ya hydrogen ishobora gukwirakwira kuri garama 100 z'icyuma cya fluid.
Electrode zifite ikimenyetso cya "R" — nka E7018 H4R — zakorewe isuzuma ryihariye kandi zafashwe nk'izirwanya ubushuhe n'uruganda. Kugira ngo zibone iki cyitegererezo, ibicuruzwa bigomba kurwanya ubushuhe mu rugero runaka nyuma yo guhura n'ubushyuhe bwa dogere 80 F na 80% by'ubushuhe mu gihe cy'amasaha icyenda.
Hanyuma, ikoreshwa rya "-1" ku cyiciro cya electrode y'inkoni (urugero: E7018-1) bivuze ko ibicuruzwa bitanga ubukana bworoshye bwo guhangana n'impinduka mu buryo bufasha kwirinda gucikagurika mu bikorwa bikomeye cyangwa mu bushyuhe buri hasi.
E7018 electrodes nkeya za hydrogen zishobora gukorana n'isoko ry'amashanyarazi rihoraho (CC) ritanga umuriro usimburana (AC) cyangwa electrode direct current positive (DCEP). Ibyuma byuzuza E7018 bifite ibindi bitera imbaraga zo guhagarara cyangwa ifu y'icyuma mu gipfundikizo kugira ngo bifashe kugumana imbaraga zihamye mu gihe cyo gusudira hakoreshejwe umuriro wa AC. Inyungu y'ibanze yo gukoresha AC hamwe na electrodes za E7018 ni ukuvanaho imbaraga zo guhagarara, bishobora kubaho iyo DC isudira hakoreshejwe ubutaka budakwiye cyangwa iyo isudira ibice bifite magnetique. Nubwo hari izindi mashini zitera imbaraga zo guhagarara, isudira ikorwa hakoreshejwe AC ishobora kutaba yoroshye nk'iyakozwe na DC, ariko, bitewe n'impinduka zihoraho mu cyerekezo cy'umuvuduko ziba inshuro zigera ku 120 ku isegonda.
Mu gusudira ukoresheje umuyoboro wa DCEP, izi electrode zishobora koroshya kugenzura umuyoboro n'urusato rwo gusudira, kubera ko icyerekezo cy'umuyoboro w'amashanyarazi kiba gihoraho. Kugira ngo ubone umusaruro mwiza, kurikiza inama z'uwakoze ku bijyanye n'ibipimo by'imikorere y'umurambararo wa electrode.
Kimwe n'uburyo ubwo aribwo bwose bwo gukora no gukoresha electrode, gukoresha uburyo bukwiye mu gusudira uduti ukoresheje electrode za E7018 ni ingenzi kugira ngo ushyireho ubuziranenge bwiza bwo gusudira. Fata uburebure bw'agace gato k'umurambararo - byaba byiza ufashe electrode hejuru gato y'ikidendezi cyo gusudira - kugira ngo ukomeze guhagarara neza kandi ugabanye amahirwe yo kugira poromosiyo.
Mu gihe usudira mu buryo burambuye n'ubutambitse, shyira/kurura electrode kuri dogere 5 kugeza kuri dogere 15 kure y'icyerekezo cy'urugendo kugira ngo ugabanye amahirwe yo gufata ibisigazwa mu isudira. Mu gihe usudira mu buryo bugororotse, shyira/sunika electrode hejuru kuri dogere 3 kugeza kuri dogere 5 mu gihe ugenda uzamuka, kandi ukoreshe uburyo bwo kuboha kugira ngo wirinde ko isudira igwa. Ubugari bw'isaro ry'ubushundura bugomba kuba inshuro ebyiri n'igice z'umurambararo w'insinga y'ibanze ya electrode ku isudira irambuye n'iy'ubutambitse, n'inshuro ebyiri n'igice kugeza kuri eshatu z'umurambararo w'ibanze ku isudira igororotse.
E7018 stick electrodes zisanzwe zitangwa n’uruganda mu ipaki ifunze neza kugira ngo zirindwe kwangirika k’ubushuhe no gukururwa. Ni ngombwa kubika iyo paki neza kandi ikabikwa ahantu hasukuye kandi humutse kugeza igihe ibicuruzwa bigeze igihe cyo gukoreshwa. Iyo imaze gufungurwa, stick electrodes zigomba gufatwa n’uturindantoki dusukuye kandi twumye kugira ngo hirindwe ko umwanda n’imyanda byakwifata ku gipfundikizo no gukuraho amahirwe yo gukururwa k’ubushuhe. Electres kandi zigomba kubikwa mu itanura ku bushyuhe busabwa n’uruganda nyuma yo gufungurwa.
Hari amategeko agenga igihe electrode z'icyuma zishobora kumara hanze y'ifuru ifunze cyangwa mu ifuru yo kubikamo, kandi niba icyuma cyuzuza gishobora kuvugururwa (ni ukuvuga binyuze mu guteka byihariye kugira ngo bikuremo ubushuhe bwinjira) mbere yuko bijugunywa. Buri gihe reba amabwiriza n'amategeko ajyanye n'ibyo buri murimo ukeneye.
Igihe cyo kohereza: Ukuboza-23-2022