Metal foam: Sesebelisoa se secha sa tšepe se "matla" le "boima".

Metal foam e na le mohaho o ikhethang, o kopanyang litšobotsi tsa tšepe le lisebelisoa tse sebetsang tsa lisebelisoa tsa porous. Foam ea tšepe ke ea lisebelisoa tsa tšepe tse nang le porous, porosity e ka hare e ka ba holimo ho 90% kapa ho feta, sebopeho se tšoana le "foam" kapa "mahe a linotsi", se senya mohopolo oa setso oa sebopeho se teteaneng sa tšepe, litšobotsi tse "matla" tsa tšepe ka bobeli. le bubble "leseli" litšobotsi, ke mohaho o mocha-mosebetsi kopanyo ea thepa ea tšepe. "E senya mohopolo oa setso oa sebopeho se teteaneng sa tšepe 'me o na le litšobotsi tse peli tsa tšepe le bubble, e leng mofuta o mocha oa thepa ea tšepe e kopantsoeng le sebopeho sa ts'ebetso. Ka lebaka la sebopeho sa eona se ikhethang, tšepe ea foam ha e boloke feela conductivity, ductility, weldability le litšobotsi tse ling tsa thepa ea tšepe ea motheo, empa e boetse e na le thepa e sebetsang ea thepa ea porous, joalo ka ho monya matla le ho thothomela, phokotso ea lerata, tšireletso ea motlakase, moea permeability le metsi permeability, e leng e 'nile ea khahla tlhokomelo e atileng tšimong ea thepa saense lapeng le linaheng tse ling 'me ho pharaletseng sebelisoa ka aerospace le petrochemical. masimo.

Mekhoa ea mantlha ea ho arola foam ea tšepe ke:
(1) Ho ea ka boholo ba pore bophara le porosity: pore bophara ka tlaase ho 0.3mm, porosity pakeng tsa 45% le 90%, tsejoa e le porous tšepe; le bophara ba pore ea 0.5-6mm, porosity e kholo ho feta 90%, e tsejoang e le foam ea tšepe;
(2) Ho ea ka sebopeho sa pore: e arotsoe ka sebopeho sa pore le sebopeho se koetsoeng;
(3) Ho ea ka mokhoa oa ho lokisetsa: qalong e lokiselitsoeng ka mokhoa oa ho foaming o bitsoa foam ea tšepe, 'me hamorao o ntshetswa pele ho lahla ha percolation le mekhoa e meng ea ho lokisetsa e boetse e bitsoa tšepe ea ventilation;
(4) Ho ea ka mofuta oa matrix: foam ea aluminium, foam ea nickel, foam ea koporo joalo-joalo. Mokhoa oa ho itokisa, mokhoa oa ho itokisa oa setso ho fumana foam ea tšepe hangata o rarahane ka mokhoa o sa tloaelehang oa pore, 'me khatiso ea 3D e ka laola ka nepo sebopeho sa pore, ho ea ka ho nepahala ho matlafatsa foam ea tšepe ho atolosa maemo a ts'ebeliso, joalo ka porous titanium. lisebelisoa tsa bongaka, tse nepahetseng le likarolo tse ling ho tlatsa likheo tsa kopo ea tšepe ea foam.

Thepa e kopantsoeng ea sebopeho-ts'ebetso, tebello ea ts'ebeliso ea foam ea tšepe e pharaletseng
Metal foam e kopanya sebopeho le ts'ebetso: e le thepa ea mohaho, foam ea tšepe e na le litšobotsi tsa boima bo bobebe le matla a khethehileng a phahameng; e le thepa e sebetsang, foam ea tšepe e na le mefuta e sa tšoaneng ea lintho tse bonahalang tse kang porous, vibration damping, damping, sound-absorbeing, soundproofing, dissipation heat, shock absorption, electromagnetic shielding joalo-joalo. Ka thepa ea eona e ikhethang, foam ea tšepe e sebelisitsoe haholo masimong a indasteri le masimong a theknoloji e phahameng:
(1) E sebelisa boima bo bobebe le litšobotsi tse phahameng tse khethehileng tsa matla, e sebelisetsoa ho etsa lisebelisoa tsa ho phaphamala ha metsi, lisebelisoa tsa lipapali (tse kang li-sledges, joalo-joalo), le likarolo tse tsamaellanang tsa likoloi tsa sefofane;
(2) Ts'ebeliso ea li-porous, ka tlhahiso ea li-filters tsa lik'hemik'hale, bakeng sa tlhoekiso ea metsi a sebelisoang mochining oa khase, ho tlatsa oli ka boiketsetso, mekhabiso e monko, joalo-joalo;
(3) ts'ebeliso ea ts'ebeliso ea ho thothomela, ts'ebetso ea damping, ka tlhahiso ea eona e le "buffer, vibration absorber", joalo ka lisebelisoa tsa ho lulisa sepakapakeng, li-cushion tsa polokeho ea phetisetso ea lifti le mabokose a fapaneng, haholo mabokose a lipalangoang tsa moea, libethe tsa lisebelisoa tsa mochini, metheo, mehele ea metsi, joalo-joalo;
(4) Ts'ebeliso ea ts'ireletso ea eona ea motlakase, e bobebe ebile e ts'oara molumo o motle, thepa ea ho kenya molumo, e sebelisitsoe ho etsa liphanele tsa indasteri ea kaho, likhetla tsa lisebelisoa tsa elektroniki le sebopeho sa phaposi ea tšireletso ea motlakase.

Lisebelisoa tse khethehileng, foam ea tšepe e sebelisoa haholo ka aluminium, nickel, koporo le li-alloys tsa eona, litšobotsi tse ka sehloohong tsa lisebelisoa tse fapaneng tsa matrix le libaka tsa kopo li fapana.
(1) Foam ea aluminium: Joalo ka thepa ea tšepe ea foam ea khale ka ho fetesisa, molemo o ka sehloohong oa foam ea aluminium o ka boima bo bobebe, ho kenya mocheso, ho kenya molumo, tšireletso ea motlakase, ho monya matla a tšusumetso, joalo-joalo, e sebelisoang molemong oa tšireletso. ea limisaele, lifofane le likarolo tsa tsona tse sebelisitsoeng hape, hape e sebelisoa masimong a buffer ea koloi, sesebelisoa sa damping sa elektroniki le sa mochini, leqhubu la motlakase. tšireletso sekoahelo sa phepelo ea motlakase ka pulse, joalo-joalo;
(2) Foam ea nickel: e nang le sebopeho sa eona sa pore se kopantsoeng le porosity e phahameng, foam ea nickel moeeng o phahameng oa moea, sebaka se phahameng le matla a capillary, ha ho hanyetsa kutu ho na le melemo e mengata, e atisang ho sebelisoa ha ho etsoa li-filters tsa mokelikeli, li-catalytic converters, li-atomizer le lipoleiti tsa li-electrode tsa betri le lisebelisoa tsa mocheso;
(3) Foam ea koporo: foam ea koporo e na le conductivity e ntle ea motlakase le ductility, ha ho lokisoa lisebelisoa tsa li-electrode tse mpe (mojari), li-catalyst carriers le lisebelisoa tsa tšireletso tsa motlakase le likarolo tse ling tsa bokhoni bo bongata.