I-Aluminiyam i-foam (isinyithi se-porous esekelwe kwi-aluminium kunye ne-alloys yayo) sele isaziwa ngaphezu kwesiqingatha senkulungwane, kodwa isenokusabalalisa kunye nokusetyenziswa okuncinci. Isizathu esona sizathu salokhu kwakuyi-reproducibility ephantsi yesakhiwo kunye nezinto eziphathekayo ekuveliseni amagwebu e-aluminium. Uphuhliso lwetekhnoloji ye-aluminiyam ye-foam yenze ukuba kube nokwenzeka ukoyisa ezinye zezi ngxaki. Iinkqubo ezahlukeneyo zokuveliswa kwee-foam zetsimbi ziye zaphuhliswa kwaye zaphandwa.

Ekuqaleni, abaqambi bezinto ezinjalo baphefumlelwe zizinto zendalo ezinqabileyo ezifana neenkuni, ithambo, i-coral, i-pumice kunye nezinye iiminerali ezimbi. Into eqhelekileyo yezi zixhobo kukudityaniswa kwamandla aphezulu, ubunzima obuthile obuphantsi kunye nokufunxa kakuhle kwamandla. Kule mihla, abavelisi be-aluminium foams banokuvelisa iintsimbi ezineempawu ezifanayo ngokulula. Uluhlu lwezicelo ze-aluminium foams ngoku lubanzi kakhulu kwaye lunezicelo ezininzi ezahlukeneyo.

Imathiriyeli eguquguqukayo enoyilo olungenasiphelo kunye nokusetyenziswa kwezakhiwo. Kunye nenkangeleko yayo ekhethekileyo, ineempawu ezifunxa isandi eziyenza ilungele usetyenziso olufuna ukufunxwa kwesandi kunye nobuhle. Isetyenziselwa iiFacades, ukufakwa eludongeni, iithayile zesilingi okanye iisilingi eziwisiweyo, iivenkile zokutyela, imivalo, iiofisi, izakhiwo eziqeshisayo, imiboniso yegumbi lokubonisa, umgangatho weTerrazzo, imiqondiso, izibane zokukhanyisa, imiboniso, kunye naso nasiphi na isicelo onokuba nomfanekiso ngqondweni.

I-aluminiyam yogwebu yenza iipaneli ezomeleleyo kodwa zikhaphukhaphu. Ifana nenkangeleko yesiponji sesinyithi, ibukeka inomtsalane, kunye nenkangeleko yale mihla. Ukwakhiwa, i-foam ye-aluminium iveliswa kwiipaneli ezisuka kwii-densities ezahlukeneyo, kunye nobukhulu ukusuka kwi-12.7mm ukuya kwi-43.2 mm (ubungakanani obulindelekileyo obuqhelekileyo). Iinguqulelo eziqhelekileyo ziNcinci, ziPhakathi nezinkulu.

Umphezulu wephaneli nganye ushiywe ukwimo yawo yendalo eqinileyo njengoko ivelisiwe, okanye ulungiselela umphezulu obonelela ngenkangeleko ezininzi ezahlukeneyo. Imbonakalo njengendawo eqinileyo "ebenyezelayo" ijongeka kwinkangeleko "yegwebu lamanzi", kunye noyilo oluqhelekileyo. Amacala ama-2 ephaneli nganye, achongwe 'njengaphezulu kunye/okanye ezantsi, akhangeleka ahluke kakhulu kwelinye.

Ukuveliswa kwe-aluminium foam

Kukho iinkqubo ezahlukeneyo zokuvelisa amagwebu e-aluminium.

Kwimeko enye, i-foam yensimbi ifunyenwe kwintsimbi etyhidiweyo ngeendlela ezahlukeneyo. Njengoko i-aluminiyam iphola kwaye iqina, i-foam yensimbi iyazinza. Imijelo yegesi okanye ii-agent ezivuthelayo zisetyenziselwa ukwenza i-foam. I-ejenti yokuvuthela ibola phantsi kweemeko ezithile kwaye ibangele ukukhutshwa kwegesi. Izongezo ezikhethekileyo ngamanye amaxesha zisetyenziselwa ukuzinzisa iibhubhu zegesi ukwenzela ukuba i-foam ingadibanisi ngaphambi kokunyanga. Le nkqubo ingasetyenziselwa ukufumana i-aluminium foam sheets, iimveliso ezinemilo elula kunye neesandwich ze-aluminium foam. Iimveliso ezinjalo zine-foam yesinyithi njengengundoqo, egqunywe macala omabini kunye ne-aluminium eqinile.

Enye indlela kukuphosa nge-filler. Ngokomzekelo, iinkozo zetyuwa zinokusebenza njengezizalisi, ezithi ke zihlanjwe ngaphandle kwe-aluminium matrix, kwaye iipores zivela endaweni yetyuwa. I-polyurethane foam ene-coat-resistant-resistant coating iphinda isetyenziswe njengento yokuzalisa, evutha ngexesha lonyango lokushisa.

Enye inkqubo yokuvelisa i-aluminium foam isebenzisa i-ceramic engenanto okanye iibhola zetsimbi, ezifakwe kwi-matrix yensimbi.

Ekubunjweni kwesitofu, iigranules zepolymer zingasetyenziselwa ukwenza iipores. Ngenxa yexesha elifutshane kakhulu lenkqubo, ezi granules aziboli phantsi kwefuthe lobushushu obuphezulu. Zihlala zihlala kwi-matrix yesinyithi njengezizalisi okanye zisuswe ngonyango olude lobushushu. Kwimeko yokugqibela, i-foam ye-aluminium evulekileyo ifunyenwe.

Ukuveliswa kwamagwebu esinyithi kusenendlela enye, i-powder metallurgy. Okokuqala, umxube we-aluminium powder kunye nezongezo ezikhethekileyo ziveliswa. Xa umxube onjalo ushushu, i-foam kunye neenkqubo ze-sintering zenzeka, emva kokupholisa, kubangela ezinye iintlobo ze-foam ye-aluminium.

Eyona ndlela yanamhlanje yokufumana isinyithi esinemingxuma yiteknoloji eyongezelelweyo. Ngokwenza okongeziweyo, imilo kunye nesakhiwo se-3D secandelo linokulawulwa ngokuchanekileyo kakhulu. Nangona kunjalo, le nkqubo isabiza kakhulu kwaye inokusetyenziswa kuphela kwinani elincinci lesinyithi.

Iipropati kunye nezicelo

I-foam ye-aluminium evaliweyo ene-pore ine-porosity ye-80 ukuya kwi-98%. Amandla ayo adlula ngokuphawulekayo awentsimbi eqinileyo yobunzima obufanayo. Ukusetyenziswa kwezinto ezinjalo kunamandla amakhulu, ngokukodwa kwindlela yokuthutha imboni yemoto, imboni ye-aerospace kunye nokwakhiwa kweenqanawa. Ukunciphisa ubunzima kukhokelela ekugcinweni kwamafutha okanye kwenza kube lula ukunyusa ubunzima bomthwalo oza kuthuthwa.

Ubume be-porous be-foam ye-aluminium ifunxa amandla empembelelo. Le propati ingasetyenziselwa ngexesha lokuthutha ukukhusela kwiingozi, njengokhuseleko lwezixhobo kunye nokudubula. Igwebu lesinyithi linciphisa isandi. Ke ngoko, iiphaneli ze-aluminiyam zogwebu zinokusetyenziswa njengeendonga zokufunxa isandi ecaleni kwezitrato kunye noololiwe. Ukugqunywa kwesandi kwimiboniso bhanyabhanya nakwiiholo zekonsathi nako kunokusebenza kakuhle. Ngenxa yobunzima bayo obuphantsi kunye nomphezulu omhle, i-foam ye-aluminium isetyenziselwa ukuyila ngaphakathi nangaphandle.