Yintoni ukutyabeka kweDACROMET?

2024-09-05

Ukwaleka kweDacrometyintsimbi ye-zinc-aluminiyam efakwa kwiintsimbi ezinentsimbi (ezifana nentsimbi, intsimbi etyhidiweyo, kunye nezinye ialloys zentsimbi) ukuzikhusela ekudlekeni. Ukugqoka ngokuqhelekileyo kusetyenziswe ngokuntywiliselwa iinxalenye zetsimbi kwi-paste esekelwe emanzini ehlanganiswe ne-zinc ecocekileyo kunye ne-aluminium, kwaye emva koko iyabhaka kumaqondo aphezulu. Le nkqubo ibangela ibhondi ye-metallurgical phakathi kwezinto ezigqunyiweyo kunye nesiseko.

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Igama elithi "Dacromet" ligama lokurhweba, kodwa liye lasetyenziswa ngokubanzi ukuchaza olu hlobo lobugcisa bokugquma. Iyalishiya inyathelo lokuchola eliyimfuneko kwinkqubo yemveli yokufakwa kwe-electroplating, ngaloo ndlela inqanda ukuveliswa kwesixa esikhulu samanzi amdaka aneasidi, ichromium, kunye nezinc. Yonke inkqubo yemveliso ifezekisa ukukhutshwa kwamanzi amdaka, ukufezekisa ngokwenene imveliso eluhlaza kunye nokubeka ibhentshi yokukhusela indalo kushishino lokunyanga komhlaba. Olu phawu aluphenduli nje kuphela kwikhwelo lophuhliso oluzinzileyo lwehlabathi, kodwa luzuza inkoliseko yabathengi abaninzi abanikela ingqalelo kukhuseleko lokusingqongileyo.

I-coating ibonelela ngokumelana nokugqwesa okugqwesileyo, inokumelana namaqondo obushushu aphezulu, kwaye ayigungqi lula, iyenze ilungele izinto zemoto, i-hardware, kunye nezinye izicelo apho ukuqina kunye nokuchasana neemeko ezingqongileyo zifuneka. Nangona kunjalo, kufuneka kuqatshelwe ukuba ukubunjwa okuchanekileyo kunye nendlela yokusetyenziswa kunokuhluka, kwaye uphando luyaqhubeka nokuphucula iimpawu zalo kunye nokwandisa ukusetyenziswa kwalo.

♦ Umphumo wokukhusela wefilimu ye-Dacromet kwi-substrate yensimbi

1. Ukukhuselwa komqobo

I-Dacromet coating yenza umqobo womzimba owahlula i-substrate yensimbi kwizinto ezinobungozi ezifana nokufuma, i-oksijini kunye neekhemikhali. Lo mqobo uthintela ezi zinto ukuba zingadibani ngokuthe ngqo nentsimbi, ngaloo ndlela zithintela ukubunjwa kwe-rust kunye nezinye iintlobo zokubola.

2. UkuKhuselwa koMhlwa

Ingubo ye-Dacromet ngokuqhelekileyo yenziwe nge-zinc kunye ne-aluminium, zombini ezo zisebenza ngakumbi nge-electrochemically kunentsimbi. Kwiindawo apho i-coating inokukrweleka okanye yonakaliswe, ezi zinyithi zisebenza njenge-anodes yedini, i-corroding ngokukhethekileyo kwintsimbi. Oku kuthetha ukuba baya kugqwala phambi kokuba intsimbi engaphantsi yenze, ngaloo ndlela yandisa ubomi becandelo lentsimbi.

3. Ukuzinza kweThermal

Ukwaleka kuzinzile kumaqondo obushushu aphezulu, nto leyo eyenza ukuba ilungele izicelo apho iinxalenye ezigqunyiweyo zinokuvezwa kubushushu. Oku kuzinza kukwavumela ukusetyenziswa kweengxenye ezifakwe kwi-Dacromet kwiindawo apho ezinye iingubo zinokuthi zithobe.

4. Ukuncamathela

Inkqubo yokubhaka ngexesha lokusetyenziswa kweDacromet idala i-metallurgical bond eyomeleleyo phakathi kwengubo kunye ne-substrate. Oku kubambelela ngokuqinileyo kunceda ukukhusela i-coating kwi-flaking okanye ukukhupha phantsi kweemeko eziqhelekileyo, ukuqinisekisa ukukhuselwa kwexesha elide.

5. Ukumelana neMichiza

Iingubo ze-Dacromet zinika ukuchasana okulungileyo kwiindidi ezahlukeneyo zeekhemikhali, kubandakanywa i-acids kunye ne-alkali, ngakumbi ukuphucula amandla abo okukhusela kwiindawo zoshishino.

Olona khuphiswano lweDacrometilele kumandla ayo okumelana nomhlwa. Ngobunzima bokugquma obuzii-microns ezisi-8 kuphela, bunokubonisa ukuxhathisa kokudleka okungaphaya kwe-7-10 ngokuphindwe kabini kunaleyo ye-electroplating zinc yesiko kuvavanyo lwesitshizi setyuwa. Oku kuxhathisa kwemozulu kungaqhelekanga kwenza i-Dacromet yokwambathisa ibe lolona khetho lufanelekileyo kumacandelo ezixhobo kwiindawo ezirhabaxa. Ingaba ityuwa yokutshiza ityuwa kubunjineli baselwandle okanye ukubola kweekhemikhali kwintsimi yoshishino, i-Dacromet inokubonelela ngomqobo okhuselekileyo wokukhusela ukuqinisekisa ukusebenza kwexesha elide kunye nokuzinza kwezixhobo.

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