Khoom muag blog

Kev txo qis ntawm fossil fuels thiab kev txhawj xeeb loj zuj zus txog lub zog thiab ib puag ncig teeb meem tau ua rau muaj kev tshawb fawb dav dav los tsim cov khoom siv hluav taws xob. Electrochemical electrolysis ntawm dej yog suav hais tias yog ib lub tswv yim zoo rau kev tsim cov roj hydrogen.

Nyob rau hauv ib lub sijhawm ntawm kev sib txuas lus wireless thiab electromagnetic pollution ntau zuj zus, qhov kev xav tau ntawm cov khoom siv hluav taws xob electromagnetic yoj absorbing tau dhau los ua qhov tseem ceeb dua li yav tas los. Hlau ua npuas ncauj, raws li cov khoom siv tshiab, qhia tau hais tias muaj peev xwm zoo hauv daim teb no. Kev tshawb fawb tsis ntev los no tau tsom mus rau kev tshawb nrhiav lub zog ntawm electromagnetic yoj nqus ntawm cov hlau foams, thiab cov txiaj ntsig tau zoo heev.

Nyob rau hauv niaj hnub haiv neeg, peb sab laj lub suab barrier cov khoom no yog ntau thiab ntau, rhiav, tsev kho mob, tsev kawm ntawv, txoj kev loj kev tswj chaw ua hauj lwm, thiab thiaj li nyob rau hauv kev xav tau ntawm lub suab nrov txo, nyob rau hauv tus txheej txheem ntawm kev sab laj nws, feem ntau nug ib lo lus nug yog: yuav ua li cas. ntau qhov no tuaj yeem txo tau. Tam sim no peb yuav qhia rau koj txog lub hauv paus ntsiab lus ntawm kev txo suab nrov ntawm lub suab barrier.

Aluminium ua npuas ncauj yog cov khoom siv ua haujlwm siab, uas yog siv dav hauv kev tsim tsheb, kho kom zoo nkauj hauv tsev thiab lwm yam haujlwm. Txhawm rau tsim cov txhuas ua npuas dej, koj yuav tsum siv cov khoom siv ntau, suav nrog kev ua, foaming, ziab thiab lwm yam txheej txheem. Thaum siv cov khoom siv no, ua tib zoo saib xyuas kev nyab xeeb, kho thiab tswj cov khoom siv raws li cov lus qhia kom paub tseeb tias qhov ua tau zoo thiab ua haujlwm ntawm txhuas ua npuas ncauj.

Aluminium ua npuas ncauj zoo ib yam li daim txhuam cev thiab yog lub npe hu ua universal hlau, nrog ib tug tsawg ntom thiab lub teeb yuag, siv raws li ib tug tiv thaiv txheej rau qhov chaw tsheb, resistant rau compression thiab muaj peev xwm tiv taus hluav taws xob vim hluav taws xob impulses. Nws yog cov khoom siv hlau tshiab ua los ntawm foamed aluminium alloy.

Raws li dav siv zog-absorbing cov ntaub ntawv tiv thaiv, daim ntawv thov ntawm aluminium foam sandwich (AFS) panels tseem txwv los ntawm lub inherently tsawg mechanical zog ntawm cov tub ntxhais ua npuas ncauj. Kev koom ua ke ntawm coppercoated carbon fibers (Cf) tau ua pov thawj tias muaj txiaj ntsig zoo hauv kev txhim kho cov khoom siv ntawm txhuas ua npuas ncauj.

Txawm li cas los xij, kev nkag siab ntawm nws cov txheej txheem foaming thiab microstructure tseem txwv. Hauv kev ua haujlwm no, AFS thiab Cf / AFS tau tsim los ntawm kev ntim cov hmoov hlau metallurgy. Tus cwj pwm foaming ntawm AFS thiab Cf / AFS thaum kub siab yog nyob rau hauv situ pom siv synchrotron hluav taws xob X-ray imaging technology los soj ntsuam cov nyhuv ntawm Cf ntawm npuas nucleation, kev loj hlob, thiab ua npuas ncauj stability. Tsis tas li ntawd, macroscopic pore loj faib, microscopic microstructure, thiab compressive mechanical zog ntawm AFS thiab Cf / AFS tau soj ntsuam. Cov txiaj ntsig tau pom tias qhov muaj nyob ntawm Cf ua rau muaj txiaj ntsig zoo ntawm cov nucleation, txhim kho cov foaming stability, thiab tiv thaiv kev tsim ntawm cov npuas loj hauv zos thaum lub sij hawm ntxov nucleation thiab kev loj hlob. Lub caij no, Cf/AFS nthuav tawm cov pore diameters zoo dua thiab tsawg dua pore tsis xws li AFS. Kev faib tawm ntawm Cf nrog zoo wettability raws lub pore phab ntsa tiv thaiv kua zaj duab xis rupture thiab txo coalescence. Qhov kev sim compression qhia tau hais tias, piv rau AFS, lub zog compressive thiab lub zog nqus ntawm Cf / AFS tau nce li ntawm 40.6% thiab 84.8%, feem.

Hlau ua npuas ncauj yog cov khoom siv hlau nrog cov khoom tshwj xeeb, uas muaj ob qho tib si hlau thiab ua npuas ncauj, li no lub npe hlau ua npuas ncauj. Yog li, yog hlau ua npuas ncauj yog hlau?

Koj puas paub aluminium ua npuas ncauj? Cov khoom siv tshiab no ua rau muaj kev ntxhov siab hauv ntau qhov kev lag luam vim nws lub teeb yuag thiab ntau yam khoom. Hauv qhov blog no, peb yuav ua tib zoo saib ntau hom txhuas ua npuas ncauj thiab tshuaj xyuas lawv cov kev siv ntau yam.