Aluminium Foam High-Efficiency Acoustic Panels Tunnel Sound Deening le Phokotso ea Lerata
Tlhaloso ea Sehlahisoa:
Liphanele tsa aluminium tsa foam tse koetsoeng li entsoe ka liphanele tse monyang molumo o phahameng haholo ka mor'a kalafo ea ho phunya (Φ2mm masoba, sekhahla sa 1-3%), se nang le ts'ebetso e ntle haholo ea ho monya molumo, mme sekhahla sa ho monya molumo se ka fihla ho 60% ho isa ho 90%. Kaha bokaholimo ba thepa ena ha bo na sefofane, bo na le ts'ebetso e ntle haholo ea ho monya molumo oa sefahleho, 'me ka nako e ts'oanang, e na le ts'ebetso ea ho monya molumo oa Helmholtz resonance acoustic absorber, e netefatsang molumo o phahameng oa molumo. Ntle le moo, tikolohong e mongobo, thepa e tloaelehileng ea acoustic e monya metsi mme ea atoloha, coefficient ea ho monya molumo e fokotsehile haholo, athe lisebelisoa tsa aluminium foam ha li monye metsi, sekhahla sa ho monya ha molumo ha se fokotsehe.
Aluminium foam poleiti ka morao ho sete ea botenya bo fapaneng ba lera la moea, maqhubu a mantlha a ho monya molumo a fapane, ka botenya ba sekhahla sa moea ho tloha ho 0mm ho isa ho 90mm, maqhubu a mantlha a ho monya molumo ho tloha 2000Hz ho ea ho 300Hz kapa joalo. Ha botenya ba sekhahla sa moea e le 10, 30, 60, 90mm, maqhubu a ka sehloohong a sekhahla sa ho monya molumo ke 1000Hz, 500Hz, 400Hz, 300Hz kapa joalo. Ho ea ka lerata kabo kabo moralo foam sekhahla acoustic phanele ka mor'a moea lera botenya. Tsela e kholo, lithanele tse ka tlas'a noka, lithanele tse ka tlas'a leoatle le likoloi tse ling li hlahisitse lerata le leholo la hoo e ka bang 400Hz, bakeng sa lerata le fokolang haholo, kahoo litšitiso tsa melumo ea litsela tse kholo, likotopo tse ka tlas'a noka le ka tlas'a leoatle li monya molumo oa mabota a aluminium foam acoustic panels ka mor'a moea o teteaneng oa 60mm, phello ea ho fokotsa lerata e ntle. Lerata la terene ke lerata la maqhubu a mahareng le le phahameng ka holimo ho 1000Hz, lesela le tenya la 20mm le behiloe ka morao ho poleiti e monyang molumo oa aluminium foam e nang le phello e ntle ea ho fokotsa lerata.
Litšobotsi tsa Sehlahisoa:
Boima: 0.25g/cm3～0.75g/cm3;
Sekhahla sa lefeela: 75%～90%;
Matla a ho monya: 8J / m3 ~ 30J / m3;
Matla a hatellang: 3Mpa ~ 17Mpa;
Flexural matla: 3Mpa～15Mpa;
Aperture: e ajoa ka mokhoa o ts'oanang 1-10mm, sebaka se seholo sa 4-8mm;
Tshebetso e thibelang mollo ha e chese, ha e hlahise likhase tse chefo;
Ho hanyetsa kutu, bophelo bo bolelele ba tšebeletso.
Tlhaloso ea sehlahisoa: 1200mm * 600mm * H kapa tlhahiso e hlophisitsoeng ho latela litlhoko tsa bareki.
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