Indlela yokulungiselela i-aluminium foam

Ngenxa yeenkqubo ezahlukeneyo zamalungiselelo, ugwebu lwe-aluminiyam lunokwahlulwa lube lugwebu lwe-aluminium yeseli evaliweyo, isiqingatha-i-aluminiyam i-foam evaliweyo, kunye ne-open-cell aluminium foam esekelwe kwindlela imingxuma edibeneyo ngayo. Iindlela zokulungiselela i-foam ye-aluminiyam zinokuhlelwa ngokubanzi zibe ngamacandelo amathathu: isigaba solwelo, isigaba esiqinileyo, kunye ne-deposition.

(1) Indlela yesigaba solwelo

Indlela yesigaba solwelo yeyona ndlela ivuthiweyo yokulungiselela igwebu le-aluminiyam, enesakhono sophando olubanzi kunye nemibono yokusetyenziswa, ingakumbi kubandakanywa ukuvuthela kwerhasi kwindlela yolwelo lwesinyithi, indlela ye-agent evuthela ulwelo lwesinyithi, indlela yokuphosa utyalo-mali, kunye nendlela yokuphosa amanzi.

Ukuvuthela kwerhasi kwindlela yolwelo lwesinyithi: kwisinyithi esinyibilikisiweyo se-aluminiyam enyibilikayo yongeza amasuntswana atyebileyo, ukuphucula i-viscosity yokunyibilika, i-thickeners esetyenziswa ngokuqhelekileyo i-silicon carbide, i-alumina magnesium oxide, njl njl. , i-hydrogen, okanye ingxubevange yezi gesi, kwaye ihlala ishukumisa, isinyithi esinyibilikisiweyo sinokufumaneka emva kokupholisa i-porosity I-80% ~ 97.5% ye-aluminiyam yogwebu, njengoko kubonisiwe kuMfanekiso 1.

Umzobo we-1 I-Macromorphology ye-foam ye-aluminium elungiselelwe yindlela yokutofa kwegesi

2 Ipesenti ye-porosity ye-aluminiyam yogwebu. I-arhente yogwebu esetyenziswa kwimveliso yeugwebu aluminiyamTiH2, ZrH2, kunye neCaH2, njalo njalo.

3 oku kuphosa, kupholile kwaye kuqiniswe ukususa izinto eziphikisayo, kunokufumaneka i-porosity ye-80% ~ 97% ye-foam. aluminiyam.

(4) Indlela ye-Seepage casting: i-aluminium ephezulu yobushushu obuphezulu phantsi koxinzelelo oluthile lokungena kwi-gap yokuzalisa ukufumana i-metal filler composite, kwaye emva koko usebenzise ukucwiliswa okanye ukungcangcazela kwe-ultrasonic kunye nezinye iindlela zokususa umhluzi, ukufumana i-porosity ye-70% okanye kunjaloaluminiyam yogwebu. Izihluzi ezisetyenziswa ngokuqhelekileyo ziyityuwa enyibilikayo, iibhola ze-ceramic ezingenayo i-porous, iibhola ze-corundum ezingenanto, i-foam carbon, njalo njalo. Le ndlela inokwahlulwa ibe ziindidi ezimbini: i-up-pressure percolation casting method kunye ne-negative pressure percolation casting method.

2. Indlela yesigaba esiqinileyo

(1) Indlela ye-powder metallurgy: Indlela ye-powder metallurgy kukuxuba umgubo we-aluminium kunye ne-agent evuthelayo (ehlala isetyenziswa i-TiH2) kumlinganiselo othile, ukulungiselela umzimba wangaphambi kwentsholongwane phantsi koxinzelelo olufanelekileyo, kwaye emva koko umzimba owenziwe ngaphambili ucinezelekile. kusetyenzwe ngakumbi, njengokuqengqeleka, ukubumba, njl. njl., kwaye ke le mveliso ingekagqitywa ifakwe kumngundo wentsimbi efunekayo, ifudunyezwe kubushushu obuthile ukuze iarhente yokuvuthela. iyabola ukwenza amaqamza kwaye ufumane i-aluminiyam yogwebu. Le ndlela inzima ngakumbi, kodwa umgangatho wemveliso uphezulu kwaye ukusebenza kuzinzile, ngaloo ndlela ikhula ngokukhawuleza, kodwa le ndlela ayikwazi ukuveliswa ngokuqhubekayo ngenxa yeendleko eziphezulu zezinto eziphathekayo.

(2) Indlela yokufaka udaka lwepowder: misela i-viscosity ethile ye-aluminium eludaka oluludaka, i-porous polymer foam imathiriyeli intywiliselwa kolu daka, umgubo ufakwe kudonga lwepore ye-polymer foam, emva koko ukomisa unyango, ukufudumeza ukuze ukubola kwe-thermal ye-polymer foam material, i-spongy material kwinkqubo yokubola ukuze idlale indima yenkxaso yethutyana, kwaye ekugqibeleni umgubo we-aluminiyam udityaniswe kunye, kwaye emva koko upholiswe ukufumana i-porosity ye-70% ukuya kwi-90% Ugwebu lweAluminiyam.

(3) Yongeza indlela yezinto zebhola: yongeza into yebhola okanye ibhola evulekileyo kwi-aluminium inyibilika kwaye ugxobhoze, ukwenzela ukuba izinto zebhola zihanjiswe ngokufanayo kwi-aluminium enyibilikayo; qhubeka uvuselela kwaye upholile kwi-viscosity eyaneleyo, kwaye ujobe imodeli ukuze ufumane i-metal-ball material composite. Xa into eyongeziweyo yebhola iyinto enyibilikayo, indlela yokuntywiliselwa yokuhlamba ingasetyenziselwa ukunyibilikisa izinto zebhola, ukufumana i-aluminium ye-foam ye-hole.

3. indlela ye-electrodeposition

I-Foam yinkqubo yokuqhubela phambili njengento ye-cathode, ipleyiti ye-aluminium ecocekileyo ye-anode ye-anode, kwi-alkyl aluminium isisombululo sokucoca, ukuze i-aluminium ifakwe kumphezulu we-foam, emva kokumisa kwiqondo elithile lobushushu, ukubola kwe-thermal. ugwebu,ugwebu aluminiyam. Le ndlela iyinkimbinkimbi kwaye idinga ukulungelelanisa izinto eziguquguqukayo, kodwa isakhiwo se-foam sifana kakhulu. Ubume be-aluminium foam elungiselelwe yindlela ye-electrodeposition iboniswe kuMfanekiso 2.

Umzobo we-2 Macromorphology ye-foam ye-aluminium elungiselelwe yi-electrodeposition