Iyini i-ejenti eyenza amagwebu ye-aluminium?

Kunezindlela ezehlukene eziyinhloko zei-aluminium foaming, okuhlanganisa indlela yokuncibilika kwegwebu, indlela ye-powder metallurgy yokwenza amagwebu kanye nendlela yokukhipha amagwebu yesibili.
Indlela ye-Melt Foaming iyindlela yokukhiqiza isakhiwo segwebu ku-aluminium ewuketshezi. Inqubo ethile iwukwengeza i-ejenti ekhulayo ye-viscosity, njenge-silicon carbide noma i-alumina, oketshezini oluncibilikisiwe lwe-aluminium ukuze kwandiswe i-viscosity yoketshezi lwe-aluminium futhi kuvinjwe amabhamuza ukuthi akhuphuke futhi ahlangane ngokushesha okukhulu. Kamuva, i-agent ekhihlizayo, efana ne-titanium hydride noma i-hydrogen zirconium hydride, yengezwa ku-aluminium ewuketshezi, futhi lawa ma-ejenti agwebuyo abola emazingeni okushisa aphezulu ukuze akhiqize amagesi abangela ukuthi i-aluminium ewuketshezi yande futhi ibe negwebu. Ngokulawula inani le-ejenti evuthelayo eyengeziwe, izinga lokushisa lokubola kanye ne-viscosity yoketshezi lwe-aluminium, ubukhulu nokusabalalisa kwama-bubbles wegesi kungalungiswa, okuholela ekuthenii-aluminium foamngesakhiwo esifunwayo. Ngemuva kokupholisa nokuqiniswa, iseli elivaliwe noma i-open-cell aluminium foam material yenziwa.
Indlela ye-powder metallurgy foaming ukulungisa igwebu le-aluminium ngesisekelo sempushana eqinile ye-aluminium. Okokuqala, i-aluminium powder ixubene ne-ejenti evuthelayo futhi icindezelwe ngaphansi kwengcindezi ethile ukwenza ibhulokhi eliminyene elakhiwe ngaphambili. Kamuva, amabhlogo akhiwe ngaphambilini afakwa esithandweni sokushisa futhi ashiselwe ukuze avale indawo yokuncibilika kwe-aluminium, ngaleso sikhathi i-ejenti evuthelayo iqala ukubola, futhi igesi ekhiqizwayo ibangela ukuthi amabhulokhi akhiwe ngaphambilini ande ukuze akhe isakhiwo esinezimbotshana. Ngokulungisa izinga lokushisa elinegwebu, isikhathi kanye nokuminyana kwamabhulokhi akhiwe ngaphambili, i-porosity kanye nesakhiwo se-porei-aluminium foamingalawuleka. Indlela ye-powder metallurgy foaming ilungele ukulungisa imikhiqizo yegwebu le-aluminium enobunjwa obuyinkimbinkimbi kanye nezidingo eziphezulu ze-porosity.
Indlela yesibili yokwenza amagwebu ihlanganisa izinzuzo zendlela yokuncibilika kwegwebu kanye nendlela yokwenza i-powder metallurgy. Iqala yengeza i-viscosity ekhulayo i-ejenti kanye ne-ejenti ekhipha amagwebu ekuncibilikeni kwe-aluminium, ixube kahle bese iphonsa esibunjeni ukuze iphole ngokushesha futhi iqiniswe ukuze kutholwe isandulela esinegwebu. Lapho isandulela sishiselwa ekushiseni okuthile, i-ejenti enegwebu iqala ukubola kanye negwebu, futhi ekugcineni ikhiqize igwebu le-aluminium. Le ndlela ingalawula kangcono ukwakheka kwembobo kanye nezakhiwo zegwebu le-aluminium ngokusebenzisa inqubo yezinyathelo ezimbili zokugwedla, futhi ilungele ukulungiselela ukusebenza okuphezulu.i-aluminium foamizinto zokwakha.
Kunezindlela ezihlukahlukene zokugwetshwa kwe-aluminium, futhi indlela ngayinye inezici zayo ezihlukile zenqubo kanye nobubanzi bokusebenza. Ekusetshenzisweni okusebenzayo, indlela efanelekile ingakhethwa ngokuya ngezidingo ezithile kanye nemibandela yokulungiswa kwegwebu le-aluminium.