Marka aynu ka fikirno ereyga “miridhku,” Sawirka ugu horreeya ee inta badan maskaxda ku soo dhaca waa dahaarka dillaacsan ee casaan-brown ee ka sameysan birta ama birta marka ay la kulmaan hawada qoyan., dhacdo cilmi ahaan loo yaqaan 'iron oxide'. falcelinta kiimikaad waxa loo matalli karaa sidan soo socota:

4𝐹𝑒+3𝑂2+6𝐻2𝑂→4𝐹𝑒(𝑂𝐻)3?

Dareen-celintani waxay keenaysaa samaynta birta fuuqbaxday(III) oksaydh, kaas oo inta badan loo yaqaan miridhku.

Si kastaba ha ahaatee, marka ay timaado aluminium, su'aasha ayaa soo baxaysa: Miyuu miridhku aluminium ah leeyahay? Si aad tan uga jawaabto, waxaynu u baahanahay in aynu dhex galno waxa dhabta ah ee miridhku yahay, sida ay u saamayso biraha kala duwan, iyo gaar ahaan, sida aluminium uga falceliso xaaladaha la midka ah.

Waa maxay miridhku?

Daxalku waa nooc ka mid ah daxalka ku dhaca birta iyo birta marka ay la kulmaan ogsijiinta iyo qoyaanka. Falcelinta kiimikaad waxay keentaa oksaydhka birta. Sifada u gaarka ah miridhku maaha midabkiisa oo kaliya balse sidoo kale waa habka ay u keento in birta ay balaadhiso oo ay ka baxdo, taas oo aakhirka wax u dhimi karta sharafta qaab dhismeedka birta.

Aluminium iyo Daxalka

Aluminium, ka duwan birta, ma daxalaystaan. Sababta oo ah aluminium kuma jiraan bir, sidaas darteed, falcelinta kiimikaad ee gaarka ah ee abuurta oksaydhka birta (miridhku) ma dhici karto. Si kastaba ha ahaatee, tani macnaheedu maaha in aluminiumku uu difaac u yahay dhammaan noocyada daxalka. Halkii daxalka, aluminium undergoes a process called oxidation.The chemical reaction for the formation of aluminum oxide is as follows:

4𝐴𝑙+3𝑂2→2𝐴𝑙2𝑂3?

Dareen-celintani waa mid iskeed u socota oo kacsan, macneheedu waxa ay soo daysaa kulayl. Lakabka aluminium oxide waa mid aad u adag wuxuuna bixiyaa difaac aad u fiican oo ka hortagaya daxalka dheeraadka ah.

Habka Oxidation ee Aluminium

Marka aluminiumku u soo baxo jawiga, waxay la falgashaa ogsijiin si ay dusheeda ugu samaysato aluminium oksaydh. Lakabka aluminium oksaydhisku wuxuu aad uga duwan yahay miridhku dhowr siyaabood oo muhiim ah:

1. Midabka iyo Texture: Aluminium oxide ma aha mid jilicsan ama casaan sida birta oksaydhka. Halkii, waxay samaysaa caddaan ama cad, lakabka ilaalinta oo aan guud ahaan la dareemin.
2. Caqabadda Ilaalinta: Si ka duwan birta oksaydhka, kaas oo xumaada oo waxyeelo u geysta birta, aluminium oxide waxay dhab ahaantii ka ilaalisaa birta hoose inay daxal kale yeelato. Lakabkani si dhakhso ah ayuu u samaysmaa marka aluminium cusubi uu soo gaadho hawo oo uu si cajiib ah ugu adkaysto daxalka kale.

Waa maxay sababta aluminiumka loogu doortay codsiyada dibadda

Qalabka dabiiciga ah ee aluminiumka ayaa ka dhigaya doorasho aad u fiican codsiyada dibadda. Halkan waxaa ah dhowr sababood oo sababta:

• Waarta: Sababo la xiriira lakabka oksaydh ilaalintiisa, aluminiumku aad buu ugu adkaysanayaa xaalufka cimilada, gaar ahaan meelaha sida caadiga ah soo dedejiya daxalka birta.
• Fudud: Aluminiumku aad ayuu u fudud yahay marka loo eego biraha kale, samaynta doorasho ku habboon codsiyada halka miisaanku yahay arrin, sida diyaaradaha, dhismaha baabuurta, iyo dhismayaasha la qaadi karo.
• Aan sun ahayn oo dib loo warshadayn karo: Aluminium is non-toxic and highly recyclable, taas oo gacan ka geysata caannimada baakadaha cuntada iyo dhismaha.

Qodobbada saameeya Daxalka Aluminiumka

Halka aluminiumku uu adkaysi u leeyahay daxalka, xaaladaha qaarkood waxay soo dedejin karaan habka ama waxay u horseedi karaan noocyo kale oo daxalka ah:

• Daxalka Galvanic: Tani waxay dhacdaa marka aluminiumku uu la xiriiro bir aad u sharaf badan marka ay jirto koronto, taasoo keenta daxalka oo kordha.
• Arrimaha Deegaanka: Soo-gaadhista wasakhowga warshadaha, deegaanka cusbada (sida gobolada xeebaha), iyo xaaladaha pH ee aadka u daran waxay kor u qaadi karaan daxalka.

Aluminium vs. Biraha kale: Iska caabinta daxalka

Comparing the corrosion resistance of aluminium to other metals helps illustrate its advantages and limitations.

Miis : Iska caabinta Daxalka ee Biraha Caadiga ah