Ebe ngwa agha nke ịgbado ọkụ dị maka ịlụso ọrụ ndozi ígwè ọgụ amụbaala nke ukwuu kemgbe ọtụtụ afọ, gụnyere ndepụta mkpụrụedemede welder.
Ọ bụrụ na ị gaferela afọ 50, ọ ga-abụ na ị mụtala otu esi eji igwe ịgbado ọkụ SMAW ( Shielded Metal Arc or Electrode ) .
Afọ 1990 wetara anyị mma nke MIG (metal inert gas) ma ọ bụ FCAW (flux-cored arc welding) ịgbado ọkụ, nke mere ka ọtụtụ ndị na-egwu egwu laa ezumike nka.N'oge na-adịbeghị anya, teknụzụ TIG (tungsten inert gas) abanyela n'ụlọ ahịa ọrụ ugbo dị ka ụzọ dị mma iji wụnye metal mpempe akwụkwọ, aluminum na igwe anaghị agba nchara.
Na-eto eto ewu ewu nke multi-ebumnuche welders now pụtara na niile anọ usoro nwere ike iji n'otu ngwugwu.
N'okpuru bụ nkuzi ịgbado ọkụ dị mkpụmkpụ nke ga-emeziwanye nkà gị maka nsonaazụ a pụrụ ịdabere na ya, n'agbanyeghị usoro ịgbado ọkụ ị na-eji.
Jody Collier ararala ọrụ ya maka ịgbado ọkụ na ọzụzụ welder.Ebe nrụọrụ weebụ ya Weldingtipsandtricks.com na Welding-TV.com jupụtara na ndụmọdụ na aghụghọ bara uru maka ụdị ịgbado ọkụ niile.
Gas kacha amasị maka ịgbado ọkụ MIG bụ carbon dioxide (CO2).Ọ bụ ezie na CO2 dị oke ọnụ ma dị mma maka ịmepụta welds miri emi na nchara siri ike, gas mkpuchi a nwere ike ịdị ọkụ nke ukwuu mgbe ị na-agbado ọla ndị dị mkpa.Ọ bụ ya mere Jody Collier ji atụ aro ka ọ gbanwee gaa na ngwakọta nke 75% argon na 25% carbon dioxide.
"Oh, ị nwere ike iji argon dị ọcha na MIG weld aluminum ma ọ bụ ígwè, mana ọ bụ naanị ihe dị gịrịgịrị," ka o kwuru."A na-ejikọta ihe ọ bụla ọzọ na argon dị ọcha."
Collier na-ekwu na e nwere ọtụtụ ngwakọta gas na ahịa, dị ka helium-argon-CO2, ma mgbe ụfọdụ, ha na-esi ike ịchọta na ọnụ.
Ọ bụrụ na ị na-arụzi igwe anaghị agba nchara n'ugbo, ị ga-achọ ịgbakwunye ngwakọta abụọ nke 100% argon ma ọ bụ argon na helium maka ịgbado ọkụ aluminum na ngwakọta nke 90% argon, 7.5% helium na 2.5% carbon dioxide.
The permeability nke MIG weld dabere na gas na-echebe.Carbon dioxide (n'elu aka nri) na-enye ịgbado ọkụ miri emi ma e jiri ya tụnyere argon-CO2 (n'elu aka ekpe).
Tupu arcing mgbe ị na-arụzi aluminom, jide n'aka na ị ga-ehichapụ weld nke ọma ka ị ghara ibibi weld ahụ.
Nhicha weld dị oke mkpa n'ihi na alumina na-agbaze na 3700ºF yana ọla ala gbazere na 1200ºF.Ya mere, ọ bụla oxide (oxidation ma ọ bụ ọcha corrosion) ma ọ bụ mmanụ n'elu rụziri ga-egbochi ịbanye n'ime metal filler.
Mwepụ abụba na-ebute ụzọ.Mgbe ahụ, na naanị mgbe ahụ, ka ekwesịrị iwepụ mmetọ oxidative.Agbanwela usoro a, ka Joel Otter nke Miller Electric dọrọ aka ná ntị.
Site na mmụba nke igwe ịgbado ọkụ waya na-ewu ewu n'afọ ndị 1990, a manyere ndị na-agbado ụlọ a nwara aṅụ na-ekpokọta uzuzu n'akụkụ ụlọ ahịa.
N'adịghị ka ndị ochie buzzers na-eji naanị maka alternating ugbu a (AC) arụmọrụ, ọgbara ọhụrụ welders na-arụ ọrụ na ma alternating ugbu a na kpọmkwem ugbu a (DC), na-agbanwe welding polarity ugboro 120 kwa nkeji.
Uru ndị mgbanwe polarity ngwa ngwa a na-enye buru ibu, gụnyere mmalite dị mfe, obere ịrapagidesi ike, obere spatter, welds mara mma karịa, yana ịgbado ọkụ kwụ ọtọ na nke elu.
Ejikọtara ya na ịgbado ọkụ mkpisi na-emepụta welds miri emi, ọ dị mma maka ọrụ a na-arụ n'èzí (ikuku na-ebufe gas na-echebe MIG), na-arụ ọrụ nke ọma na ihe ndị siri ike, na-ere ọkụ site na nchara, unyi na agba.Igwe ịgbado ọkụ dịkwa obere ma dị mfe iji rụọ ọrụ, yabụ ị ga-ahụ ihe kpatara igwe ịgbado ọkụ ọhụrụ ma ọ bụ igwe nrụpụta multiprocessor kwesịrị itinye ego ya.
Joel Orth nke Miller Electric na-enye ihe nrịbama electrode ndị a.Maka ozi ndị ọzọ gaa na: millerwelds.com/resources/welding-guides/stick-welding-guide/stick-welding-tips.
Mmiri hydrogen bụ nnukwu ihe egwu ịgbado ọkụ, na-ebute igbu oge ịgbado ọkụ, mgbawa HAZ nke na-eme awa ma ọ bụ ụbọchị mgbe ịgbado ọkụ gbachara, ma ọ bụ abụọ.
Otú ọ dị, a na-ekpochapụ ihe iyi egwu hydrogen ngwa ngwa site na ihicha ígwè ahụ nke ọma.Na-ewepụ mmanụ, nchara, agba na mmiri ọ bụla n'ihi na ha bụ isi iyi nke hydrogen.
Otú ọ dị, hydrogen na-anọgide na-eyi egwu mgbe a na-agbado ígwè siri ike (nke a na-ejikarị eme ihe n'ịrụ ọrụ ugbo nke oge a), profaịlụ metal siri ike, na n'ebe ịgbado ọkụ nke ukwuu.Mgbe ị na-arụkwa ihe ndị a, jide n'aka na ị na-eji obere hydrogen electrode ma kpoo ebe weld ahụ ọkụ.
Jody Collier na-arụtụ aka na oghere spongy ma ọ bụ obere ikuku ikuku na-apụta n'elu weld bụ ihe doro anya na weld gị nwere porosity, nke ọ na-atụle nsogbu mbụ na ịgbado ọkụ.
Weld porosity nwere ike were ọtụtụ ụdị, gụnyere elu pores, wormholes, craters, na oghere, anya (n'elu) na-adịghị ahụ anya (mimi na weld).
Collier na-adụ ọdụ, sị, "Ka mmiri mmiri ahụ nọgide na-agbaze ogologo oge, na-ekwe ka gas si na weld pụta tupu ya ajụ oyi."
Ọ bụ ezie na dayameta waya ndị a na-ahụkarị bụ 0.035 na 0.045 inch, obere waya na-eme ka ọ dịkwuo mfe ịmepụta ezigbo weld.Carl Huss nke Lincoln Electric na-atụ aro iji waya 0.025 ″, ọkachasị mgbe ị na-agbado ihe dị mkpa 1/8 ″ ma ọ bụ obere.
Ọ kọwara na ọtụtụ ndị na-agbado ọkụ na-emekarị weld nke buru ibu, nke nwere ike ibute ọkụ.Waya dayameta pere mpe na-enye weld kwụsiri ike na nke ugbu a dị ala na-eme ka ọ ghara ịdị mfe ọkụ.
Kpachara anya mgbe ị na-eji usoro a na ihe ndị gbara ọkpụrụkpụ (3⁄16 ″ ma buru ibu), n'ihi na waya dayameta 0.025 ″ nwere ike ime ka agbaze zuru oke.
N'otu oge naanị nrọ emezuola maka ndị ọrụ ugbo na-achọ ụzọ ka mma isi were ọla dị mkpa, aluminom na igwe anaghị agba nchara, TIG welders na-aghọwanye ihe na ụlọ ahịa ugbo n'ihi mmụba na-eto eto nke ndị na-emepụta ihe na-emepụta ihe.
Agbanyeghị, dabere na ahụmịhe nkeonwe, ịmụ ịgbado ọkụ TIG adịghị mfe ka ịmụ ịgbado ọkụ MIG.
TIG chọrọ aka abụọ (otu iji jide isi iyi ọkụ na ọkụ tungsten electrode nke anyanwụ na-ekpo ọkụ, nke ọzọ na-enye nri filler n'ime arc) na otu ụkwụ (iji rụọ ọrụ pedal ụkwụ ma ọ bụ onye na-achịkwa ugbu a na-agbanye na ọkụ) A na-eji nhazi ụzọ atọ malite, gbanwee ma kwụsị ugbu a.
Iji zere nsonaazụ dị ka nke m, ndị mbido na ndị na-achọ ịkwalite nka ha nwere ike iji ndụmọdụ ịgbado ọkụ TIG ndị a, n'okwu Miller Electric onye ndụmọdụ Ron Covell, Ndụmọdụ Welding: Ihe Nzuzo maka Ịga nke Ọma TIG Welding.
Ọdịnihu: igbu oge opekata mpe nkeji iri.Enyere ozi ahụ “dị ka ọ dị” maka ebumnuche ozi naanị ọ bụghị maka ebumnuche azụmaahịa ma ọ bụ ndụmọdụ.Ka ilele oge mgbanwe mgbanwe niile na usoro ojiji, hụ https://www.barchart.com/solutions/terms.