Wɔde mfiri a wɔde yɛ die casting di dwuma kɛse wɔ nneɛma ahorow a wɔyɛ mu, na aluminium a wɔde afrafra profiles yɛ ade a wɔtaa de yɛ. Aluminium a wɔde afrafra a wɔde die casting mfiri yɛ no wɔ ahoɔden a ɛkyɛn so a ɛko tia nsɛe. Nanso, bere a wɔreyɛ no, oxide a wɔde ka ho no taa ba, na ɛka sɛnea aluminium a wɔde afrafra no yɛ papa. Ɔkwan bɛn so na wobetumi adi ɔhaw yi ho dwuma?
Sɛnea die casting nhyehyɛe ho nsɛm kyerɛ no, aluminium alloy die castings taa nya oxide inclusions bere a acid ayaresa anaasɛ pickling passivation. Eyi fi nneɛma a wɔde yɛ nneɛma a ɛho ntew, nwura a wɔasan de adi dwuma dodo, nhyehyɛe a ɛmfata a wɔde yɛ casting nhyehyɛe no, ne dwumadie a ɛnyɛ-standard a adwumayɛfoɔ yɛ.
Ɔhaw a ɛfa oxide a wɔde ka ho bere a wɔreyɛ die casting no ano aduru bi ne:
1. Kwati sɛ wode aluminium a wɔde afra a efĩ kɛse wom anaa nea ɛtaa sɛe na ɛyɛ oxidation bedi dwuma.
2. Ma sɛnea wɔde smelting no tu mpɔn na hwɛ yiye wɔ refining bere a wɔreyɛ no.
3. Sɛ wode dade a wɔde kata so petepete die-cast afã horow no ani a, hwɛ sɛnea ɛyɛ kɛse no so yiye; kwati sɛ wode bɛpete so dodo.
4. Hwɛ ɔhyew a ɛwɔ die-casting mould no so. Mpɛn pii no, ɛnsɛ sɛ nkuku no hyew yɛ kɛse dodo. Wɔ die-cast afã horow bi a ɛyɛ den ho no, wobetumi de ɔkwan a ɛma onwini adi dwuma.
Sɛ wɔde die-casting afiri di aluminium alloy profile die-cast afã horow no ho dwuma wie a, welding repair nhyehyɛe ho hia. Welding repair botaeɛ ne sɛ wɔbɛhwɛ die-cast fã no ani. Sɛ wohu sintɔ biara a, ɛsɛ sɛ wodi kan yi fi hɔ. Afei, wɔma die-cast fã no yɛ hyew na afei wɔde weld yɛ. Wobetumi agyina nneɛma te sɛ nea ɛyɛ kɛse, nneɛma a wɔde yɛ, ne beae a die-cast fã no wɔ so akyerɛ ɔhyew a ɛyɛ hyew.
Sɛ wode die-casting afiri redi aluminium alloy profile die-cast afã horow ho dwuma a, ɛho hia sɛ wohwɛ sɛ die-cast fã no wɔ ɔhyew a ɛkyinkyini kodu baabi na ama ne pɛyɛ atu mpɔn. Bio nso, sɛ wokura nsuo a ɛsen fa nkukuo no mu a, ɛbɛma wɔawie die-cast fã no a ɛyɛ mmerɛw.
