Aluminom ịgbado ọkụ bụ isi nkà na dị iche iche ọrụ, site na ụgbọ ala gaa na mbara ikuku, n'ihi na aluminom dị mfe na ihe na-eguzogide corrosion. Agbanyeghị, ịgbado ọkụ aluminum na-esetịpụ ihe ịma aka pụrụ iche n'ihi na ya elu thermal conductivity na ala agbaze ebe. Blọọgụ a ga-eduzi gị site na ihe ndị dị mkpa nke otu esi agbado aluminum, na-enye nghọta maka imeri ihe ịma aka nkịtị na imezu ike, inogide welds.

Ịghọta Aluminom Welding

Tupu mmiri mmiri n'ime nkọwa nke ịgbado ọkụ aluminum, ọ dị mkpa ịghọta njirimara nke aluminom na-emetụta weldability ya:

• Akwa Thermal Conductivity: Aluminom na-eduzi okpomọkụ ngwa ngwa, nke pụtara na ọ nwere ike ịgbasa okpomọkụ site na mpaghara weld ngwa ngwa. Nke a chọrọ ntinye ọkụ dị elu n'oge ịgbado ọkụ ma e jiri ya tụnyere ígwè.
• Ebe mgbaze dị ala: Aluminom alloys na-agbaze na gburugburu 600C, dị nnọọ ala karịa ígwè. Nke a nwere ike ibute nnukwu ihe egwu nke ọkụ-site na ọ bụrụ na akpacharaghị anya.
• Oxide oyi akwa: Aluminom na-etolite n'ụzọ nkịtị oyi akwa oxide nke dị elu karịa ebe mgbaze karịa metal dị n'okpuru. Ekwesịrị iwepụ oyi akwa a maka ịgbado ọkụ nke ọma.

Ịhọrọ usoro ịgbado ọkụ ziri ezi

Ụzọ kachasị ewu ewu maka ịgbado ọkụ aluminom bụ Gas Tungsten Arc Welding (GTAW, ma ọ bụ TIG) na Gas Metal Arc Welding (GMAW, ma ọ bụ MIG). Nke a bụ ka ha si atụnyere:

• ịgbado ọkụ TIG: Kwesịrị ekwesị maka ihe ndị dị mkpa ma dị mma, ọrụ zuru ezu. Ọ na-enye ndị welder ikike ka ukwuu n'elu weld karịa ụzọ ndị ọzọ, na-eme ka ọ dị mma maka ịdị mma dị elu, kpomkwem welds.
• MIG ịgbado ọkụ: Kacha mma maka iberibe aluminom buru ibu yana ọsọ ịgbado ọkụ ngwa ngwa. Ọ na-adịkarị mfe ịmụta na ịgbaghara karịa TIG, ọ bụ ezie na ọ nwere ike ịdị ntakịrị.

Akụrụngwa na Nkwadebe

Iji malite welding aluminum, ị ga-achọ akụrụngwa kwesịrị ekwesị. Maka ịgbado ọkụ TIG, ị ga-achọ:

• AC nwere ike TIG welder
• Ike mmalite dị elu ugboro ugboro
• Tungsten dị ọcha ma ọ bụ tungsten electrode zirconiated
• Argon na-echebe gas
• Ihe ndochi kwesịrị ekwesị, 4043 alloy (Al-Ee) na 5356 alloy (Al-Mg) ọla ndochi na-ejikarị eme ihe

Maka ịgbado ọkụ MIG:

• MIG welder nwere sistemu mbanye aluminom dakọtara
• Argon ma ọ bụ argon-helium mix maka ikpuchi gas
• Egbe spool ma ọ bụ egbe ịdọrọ iji gbochie nsogbu inye waya

Nkwadebe dị oké mkpa mgbe ịgbado ọkụ aluminum. Hichaa ihe ahụ nke ọma iji wepụ mmanụ ọ bụla, unyi, na karịsịa oxide oyi akwa. Mwepụ igwe (nchara ahịhịa) ma ọ bụ usoro kemịkalụ enwere ike iji hụ na aluminom enweghị mmetọ tupu ịmalite.

Maka ozi ndị ọzọ gbasara ịgbado ọkụ aluminom, biko rụtụ aka ‘Aluminom Welding: Ntuziaka bara uru‘

Usoro ịgbado ọkụ

• Na-ekpo ọkụ: Dabere na ọkpụrụkpụ na ụdị aluminum, preheating nwere ike inye aka jikwaa mgbasa ọkụ ma zere mgbagha okpomọkụ.
• Usoro Push: Mgbe MIG ịgbado ọkụ, jiri usoro ntinye ihe, ebe ọwa na-anọ n'akụkụ ụzọ weld, na-awụba n'olulu mmiri ahụ. Nke a na-enye mkpuchi gas ka mma na welds dị ọcha.
• Njikwa Puddle: Ọdịiche nke aluminom pụtara ijikwa ebe nchekwa weld dị oke mkpa. Lezienụ anya na nha na omume ọdọ mmiri weld, na-edozi ọsọ gị na ike gị otú ahụ.

Ịchọpụta nsogbu nkịtị

• Porosity: Nke a nwere ike bute ya site na mmetọ, gas mkpuchi na-ezighi ezi, ma ọ bụ oke mmiri. Gbaa mbọ hụ na ihe niile dị ọcha ma kpọọ nkụ yana na ị na-eji ụdị gas kwesịrị ekwesị na oke gas.
• Mgbawa: Aluminom na-adịkarị mfe ịgbawa, karịsịa na njedebe nke weld. Iji gbochie nke a, hụ na a na-ahazi njikọ ahụ nke ọma na ihe ahụ na-ekpo ọkụ ma ọ bụrụ na ọ dị mkpa. Ịgbakwunye ihe ndochi na njedebe nke weld nwekwara ike inye aka.
• Ntughari: N'ihi njirimara thermal ya, aluminom nwere ike ịgbawa nke ukwuu mgbe a na-agba ya. Iji luso nke a ọgụ, jiri nkwado nkwonkwo kwesịrị ekwesị, ihe ndozi, na tack welds iji jide ihe niile na ebe.

Na-achịkọta

Aluminom ịgbado ọkụ chọrọ ịghọta ihe ndị pụrụ iche ya na imegharị usoro gị iji nabata ha. Na omume, akụrụngwa kwesịrị ekwesị, na usoro nkwadebe nke ọma, ị nwere ike ịmụta nkà nke aluminum ịgbado ọkụ, na-eme ihe niile site na nrụzi dị mfe na mgbakọ dị mgbagwoju anya kwere omume. Ma ị na-ahọrọ TIG ma ọ bụ ụzọ MIG, ndidi na nkenke ga-eduga gị na welds na-aga nke ọma na nke siri ike na ngwa a na-ama aka mana na-akwụghachi ụgwọ.