I-coefficient yokunciphisa ingxolo ebanzi ye-aluminium entsha ye-foam ifikelela kwi-0.75, kwaye i-coefficient yokufunxa isandi kuluhlu oluphakathi lwe-250 ~ 1000Hz lufikelela ngaphezu kwe-0.9, lugqithise kakhulu kwizinto eziqhelekileyo ezisetyenziselwa ukufunxa isandi ezifana noboya belitye, ibhodi yegypsum. , ipleyiti yentsimbi enemingxuma, njl njl amandla okunciphisa i-polyurethane foam. Ngamaxesha angama-7-10 okweplastiki, i-fiber yeglasi kunye ne-honeycomb aluminiyam, kwaye i-insulation yayo yesandi isondele kwi-30dB xa isetyenziswe koololiwe abahamba ngesantya esiphezulu kunye neepaneli zeebhokisi zemoto. Isixhobo esitsha se-aluminiyam se-foam sisetyenziselwa kwiindawo ezininzi zokufunxa isandi esiphakamileyo kunye nokunciphisa ingxolo kunye neempawu ezihambelanayo, ngokukodwa kwimiqobo yesandi somgwaqo omkhulu, ukunciphisa ingxolo ye-tunnel yendlela, ukunciphisa ingxolo ye-submarine, i-tunnel vents; ukufunxa isandi kudonga lwamadama okuqubha; imathiriyeli entsha ye-aluminiyam yogwebu ukwenza ulwakhiwo olufunxa isandi, olufana nezitudiyo zokurekhoda, amagumbi okudlala, iiholo zekonsathi, iiholo zenkomfa, amabala emidlalo, njl.
Ezona zinto ziphambili ezichaphazela ukufunxwa kwesandi kunye nesiphumo sokunciphisa ingxolo yezinto ezintsha ze-aluminiyam ezinogwebu zezi zilandelayo:
1. Isixhobo esitsha se-aluminiyam se-foam sisixhobo se-porous, kwaye ukusebenza kwayo kwesandi sokufunxa isandi kubonakala ngakumbi kwisandi esiphezulu se-frequency, oko kukuthi, i-coefficient ye-sound absorption inkulu kwindawo ephakamileyo. Nangona kunjalo, isiphumo sokufunxa isandi sesandi esisezantsi asilunganga kakhulu, ngoko ke i-coefficient yokufunxa isandi kwindawo ephantsi ye-frequency encinci;
2. Ubukhulu bebhodi ekhupha isandi eyenziwe yinto entsha ye-aluminium ye-foam iyahluka, kwaye i-frequency-absorbing frequency iyahluka. Ngokunyuka kobunzima, i-frequency egqwesileyo yokufunxa isandi iya kukhula ukuya kwi-low-frequency absorption. Nangona kunjalo, xa i-frequency yesandi ingaphezulu kwe-500Hz, i-coefficient yokufunxa isandi se-aluminium entsha ye-foam ayinanto yakwenza nobukhulu;
3. Xa ukuxinana kwezinto ezintsha ze-aluminium amagwebu zinyuka, isandi esihle kakhulu sokufunxa isandi ngeli xesha siya kuphuhlisa isandi esisezantsi, kunye nobukhulu bepore kunye nenani lezinto ezintsha ze-aluminium ezinogwebu nazo zineeyantlukwano ezicacileyo ekufunjweni kwesandi. ukusebenza kwephaneli efunxa isandi.
Ukuyibeka ngokulula, ukhetho olwahlukileyo lwemathiriyeli ye-aluminium amagwebu, njengobunzima, ubuninzi, i-porosity, njl., iya kubangela iziphumo ezahlukeneyo zokufunxa isandi. Kungakhathaliseki ukuba zikhethwa njani izinto ezintsha ze-aluminium ze-foam, kusebenza ngakumbi ukulungelelanisa imeko yabo.
Ixesha lokuposa: Mar-16-2022 
