Hlau Ua Npuas Ncauj yog hais txog cov ntaub ntawv hlau tshwj xeeb nrog ua npuas dej, xws li kub lub ntsej muag rwb thaiv tsev kev ua tau zoo thiab muaj peev xwm nqus tau hluav taws xob hauv hluav taws xob hauv av.

Nws muaj huab cua permeability siab, yuav luag tag nrho cov pores txuas nrog, BET ntawm cov pores yog loj thiab me me bulk ntom.

Hlau ua npuas ncauj classifications

Hlau Ua Npuas Ncauj yog feem ntau yog txhuas ua npuas ncauj, tooj liab ua npuas ncauj, npib tsib xee ua npuas ncauj thiab lwm yam hlau ua npuas ncauj.

Aluminium ua npuas ncauj nrog alloys yog lub teeb nyob rau hauv qhov hnyav thiab muaj cov yam ntxwv ntawm lub suab nqus, rwb thaiv tsev kub, txo kev co, poob siab lub zog nqus thiab electromagnetic yoj, thiab lwm yam. Lawv tsim nyog rau kev tiv thaiv txheej ntawm missile, aircraft thiab nws qhov chaw rov qab, tsheb tsis zoo, electromechanical kev co txo ​​cov cuab yeej, electromagnetic yoj shielding npog ntawm mem tes fais fab mov, thiab lwm yam.

Vim yog qhov sib txuas pore qauv thiab siab porosity, npib tsib xee ua npuas ncauj muaj cov roj ua haujlwm siab, siab tshwj xeeb ntawm thaj chaw thiab lub zog capillary. Nws feem ntau yog siv los ua cov khoom siv los ua cov lim dej, atomizers, catalytic converters, roj teeb daim hlau thiab cov cua kub hloov pauv.

Tooj liab ua npuas ncauj muaj qhov zoo conductivity thiab ductility, txo nqi ntawm cov npib tsib xee ua npuas ncauj, thiab zoo conductivity, yog li nws yuav siv tau nyob rau hauv kev npaj ntawm roj teeb anode (carrier) cov ntaub ntawv, catalyst carriers thiab electromagnetic shielding cov ntaub ntawv.

Hauv particular, tooj liab ua npuas ncauj yog siv los ua cov khoom siv ntawm cov roj teeb electrode, uas muaj qhov zoo tshaj plaws. Txawm li cas los xij, tooj liab qhov corrosion kuj tsis zoo li npib tsib xee, uas txwv nws daim ntawv thov.

Kev siv hlau ua npuas ncauj

Hlau foams muaj qee lub zog, ductility thiab addability, thiab tuaj yeem siv los ua cov khoom siv sib sib zog nqus.Cov khoom no tau ntev tau siv los ua cov khoom tseem ceeb rau aircraft clips.In the aerospace and missile industries, metal foams are used as lightweight, heat-transfer. kev txhawb nqa cov qauv.Vim nws tuaj yeem welded, glued los yog electroplated mus rau cov qauv, nws tuaj yeem ua rau hauv cov khoom siv sandwich bearing.xws li kev txhawb nqa rau lub plhaub hlau ntawm lub tis, kev tiv thaiv kev sib tsoo rau lub qhov ntswg lub khob hliav qab ntawm lub foob pob hluav taws (vim nws zoo thermal conductivity) thiab tsaws iav ntawm lub dav hlau, thiab lwm yam.

Nyob rau hauv kev tsim kho, hlau ua npuas ncauj yog xav tau los ua kom lub teeb, tawv, thiab hluav taws-resistant ntsiab, railings, los yog kev txhawb nqa rau cov khoom no.Qhov acceleration thiab deceleration ntawm niaj hnub elevator ntawm high zaus thiab kev kub ceev kuj yuav tsum tau lub teeb yuag qauv ntawm foamed hlau uas muaj ob qho tib si lub zog nqus thiab kev coj tus yam ntxwv kom txo tau lub zog noj.Cylindrical plhaub tau dav siv hauv engineering qauv, xws li cov dav hlau fuselages thiab offshore roj. RIGS.Thin-walled cylindrical shells yog qhov ua rau muaj kev puas tsuaj thaum raug thauj khoom, tab sis yog tias lub plhaub tau txais kev txhawb nqa los ntawm kev ua npuas dej tas mus li: coils, cov qauv muaj zog ntau dua li lub plhaub tsis muaj zog ntawm tib txoj kab uas hla thiab loj.

Copper ua npuas ncauj yog ib qho yooj yim los tsim thiab yooj yim rau deform, yog li nws yog haum rau fasteners.

Hlau foams kuj tseem siv tau los ua cov khoom siv ntxiv rau ntau cov khoom siv organic, inorganic thiab metallic.Piv txwv li, nickel foam reinforced aluminium alloy (NFRA) cov khoom yog tsim tom qab solidification los ntawm filling molten aluminium hauv npib tsib xee ua npuas ncauj.

Ua npuas ncauj hlau yog tsim nyog siv los ua cov khoom siv sib sib zog nqus rau nqa ntau lub vaj huam sib luag, lub plhaub thiab cov raj ua kom muaj ntau yam laminated composites.Ib qho piv txwv ntawm kev siv cov khoom ntxeem tau hauv cov txheej txheem yog sandwich panels.Sandwich panels siv. nyob rau hauv niaj hnub aircraft siv iav los yog carbon fiber composite daim tawv nqaij.Qhov txheej ntawm daim tawv nqaij yog sib cais los ntawm cov resin honeycomb cov ntaub ntawv los ntawm hlau txhuas los yog ntawv, los yog los ntawm nruj polymer ua npuas ncauj muab lub Sandwich vaj huam sib luag ib qho loj tshwj xeeb dabtsi yog khoov nruj thiab tshwj xeeb dabtsi yog khoov lub zog.Lub tshuab tib yam tau raug ncua mus rau lwm yam kev siv qhov hnyav yog ib qho tseem ceeb qhia: spaceships, sleds, sib tw nkoj thiab tsiv tsev.

Kev tiv thaiv tsis zoo kuj yog ib qho tseem ceeb ntawm kev siv hlau foams, uas yuav tsum muaj peev xwm nqus tau lub zog thaum tswj lub siab tshaj plaws quab yuam ua rau cov khoom tiv thaiv hauv qab qhov txwv ntawm kev puas tsuaj.

Porous foams zoo haum rau cov ntawv thov.Los ntawm kev tswj nws cov txheeb ze ntom ntom, lub zog ntawm cov hlau foams tuaj yeem hloov kho ntau yam.