Kuki gusudira ibyuma bitagira umugese bikoresha FCAW bihora binanirwa kugenzura? David Meyer na Rob Koltz bareba neza impamvu z'ibi bibazo. Getty Images
Q: Turimo gusana ibyuma bisugutirwa mu cyuma cyumutsa ahantu hatose. Ibyuma byacu byananiwe kugenzura bitewe n'imyenge, gukata no gusuka byacitse. Twasudiye A514 kuri A36 dukoresheje umurambararo wa 0.045″, aho hose hashyizwe, 309L ifite cores, 75% Argon / 25% Carbon Dioxide gaze kugira ngo irusheho kwangirika.
Twagerageje electrode z'icyuma cya karuboni, ariko ubushuhe bwashaje vuba cyane kandi twasanze icyuma kitagira umugese gikora neza kurushaho. Ubushuhe bwose bukorwa ahantu hagororotse, santimetero 3/8. Kubera igihe gito, ubushuhe bwose bwakozwe icyarimwe. Ni iki cyatuma ubushuhe bwacu bunanirwa?
Gukata hasi bikunze kubaho bitewe n’ibipimo byo gusudira bitari mu buryo bwihariye, uburyo bwo gusudira budakwiye, cyangwa byombi. Ntidushobora kugira icyo tuvuga ku bipimo byo gusudira kuko tutabizi. Gukata hasi bikunze kubaho kuri 1F akenshi biterwa no gukoresha cyane ikidendezi cyo gusudira cyangwa umuvuduko mwinshi cyangwa buhoro cyane mu rugendo.
Kubera ko umusudizi agerageza gushyiramo 3/8″. Gukoresha cyane itara bishobora kuba ari bimwe mu bituma imisumari ikoreshwa mu gusudira ku buryo bunyura mu buryo bumwe hakoreshejwe insinga ntoya zifite umurambararo uhindagurika. Ariko, bisa nkaho ikoresha igikoresho kidakwiye aho gukoresha ikibazo cya tekiniki, niyo mpamvu.
Ubwinshi bw'imyanda buterwa n'umwanda uri mu cyuma gisudira, gutakaza cyangwa kwiyongera k'umwuka urinda, cyangwa uburyo insinga zikoresha flux-core zikuramo ubushuhe bwinshi. Uravuga ko iki ari igikorwa cyo gusana ku byuma bitose biri mu cyuma cyumisha, bityo niba icyuma gisudira kitasukuwe neza, ibi bishobora kuba impamvu nyamukuru y'ubushuhe.
Icyuma cyuzuza ukoresha ni insinga zose zikozwe mu mwanya, izi nsinga zifite uburyo bwo gukonjesha vuba. Ibi ni ngombwa kugira ngo bishyigikire ikidendezi cyo gukonjesha iyo usuka hejuru cyangwa hejuru. Ingorane zo gukonjesha vuba ni uko gikomera mbere y'ikidendezi cyo gukonjesha kiri munsi yacyo. Iyo imyuka ikiri kurekurwa, akenshi irafatwa ikagaragara nyuma mu buryo bw'imyenge cyangwa inzira z'imbogo zo hejuru. Ibi birushaho kwiyongera iyo usuka ahantu harambuye ukoresheje insinga ntoya kandi ugerageza gushyiramo insinga nini mu nzira imwe, nk'uko bigenda mu ikoreshwa ryawe.
Gucika kw'ibumba mu ntangiriro no mu gihe cyo gusimbuza bishobora guterwa n'impamvu nyinshi. Kubera ko urimo gushyira isaro rinini rifite umugozi muto w'umurambararo, ushobora kugira ihuriro rito (LOF) ku mizi y'ibumba. Gucika kw'ibumba ni ikintu gikunze kubaho bitewe n'imbaraga nyinshi zo gusimbuza zisigara hamwe na LOF ku mizi.
Kuri ubu bunini bw'insinga, wagakwiye gukoresha inzira ebyiri cyangwa eshatu kugira ngo wuzuze 3/8 cya santimetero. Gusudira ibice, nta muntu n'umwe. Ushobora gusanga ari byo byihuse gukora uduce dutatu tudafite inenge kuruta gukora uduce duto tw'insinga hanyuma ukadukosora.
Ariko, ikindi kibazo gishobora kugira uruhare runini mu gucika kw'icyuma ni urwego rudakwiye rwa ferrite mu gucika kw'icyuma, akenshi ari yo mpamvu nyamukuru yo gucika kw'icyuma. Insinga za 309L zakozwe kugira ngo zihuzwe n'icyuma kidashonga mu cyuma cya karuboni aho kuba icyuma cya karuboni mu cyuma cya karuboni. Ubuhanga bwihariye bwo gucika kw'icyuma cy'icyuma bwita ku gucika kw'icyuma cy'ibanze ku byuma byombi by'ibanze. Kubwibyo, mu gukoresha icyuma kidashonga mu cyuma, bimwe mu byuma bikomoka ku cyuma kidashonga bifasha kuringaniza imiterere y'ibinyabutabire no gutanga ingano ikwiye ya ferrite. Gukoresha icyuma cyuzuza gifite hafi 50% bya ferrite, nka 312 cyangwa 2209, bizakuraho amahirwe yo gucika kw'icyuma bitewe n'ingano nke ya ferrite.
Uburyo bwiza bwo kudashira neza ni ugusudira igice ukoresheje electrode isanzwe ya karuboni cyangwa icyuma kidashonga hanyuma ukongeraho urwego rwa electrode isanzwe. Ariko, wavuze ko wari ufite igihe gito cyane kandi ko ikibazo cyose cyo gusudira hakoreshejwe ikoranabuhanga ritandukanye cyari kidashoboka.
Gerageza guhindura insinga nini y'umurambararo, nka santimetero 1/16 cyangwa nini. Gukoresha insinga ifite gazi ikingira flux-core ni byiza kuko itanga isuku nziza yo gusudira no kurinda umwuka kurusha insinga zidafite flux-core. Ariko, aho gukoresha insinga ifite imiterere yose, insinga ifite imiterere irambuye kandi itambitse ni yo yonyine ishobora kugabanya imyenge cyangwa gukurikirana inzoka. Ugomba kandi guhindura icyuma cyuzuza kuva kuri 309L ukajya kuri 312 cyangwa 2209.
WELDER, yahoze ari Practical Welding Today, yerekana abantu nyakuri bakora ibikoresho dukoresha kandi dukorana na bo buri munsi. Iki kinyamakuru kimaze imyaka irenga 20 gikorera umuryango w’abasudira muri Amerika ya Ruguru.
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