Centrifugal iav ntaub plaub

Centrifugal iav ntaub plaub yog lub suab ntxeem tau -absorbing khoom nrog suab zoo-absorbing zog. Qhov laj thawj yog vim li cas centrifugal iav ntaub plaub tuaj yeem nqus tau lub suab tsis yog vim qhov ntxhib nto, tab sis vim nws muaj ntau qhov me me thiab qhov sib txuas rau sab hauv thiab sab nraud. Thaum lub suab nthwv dej tshwm sim ntawm lub centrifugal iav ntaub plaub, lub suab nthwv dej tuaj yeem nkag mus rau sab hauv ntawm cov khoom raws li qhov pores, ua rau muaj kev vibration ntawm huab cua molecules hauv qhov sib txawv. Vim lub viscous tsis kam ntawm huab cua thiab kev sib txhuam ntawm cov huab cua molecules thiab cov phab ntsa pore, lub suab lub zog hloov mus rau hauv tshav kub zog thiab poob.

Suab nqus

Centrifugal iav ntaub plaub muaj lub suab zoo nqus tau zoo rau nruab nrab thiab siab zaus. Lub ntsiab yam tseem ceeb cuam tshuam rau lub suab nqus kev ua tau zoo ntawm centrifugal iav ntaub plaub yog tuab, ntom thiab cua ntws tsis kam. Qhov ceev yog qhov hnyav ntawm cov khoom ib lub cubic meter. Huab cua ntws tsis kam yog qhov sib piv ntawm huab cua siab thiab huab cua tshaj tawm ntawm ob sab ntawm cov khoom ib chav tsev tuab. Huab cua ntws tsis kam yog qhov tseem ceeb tshaj plaws cuam tshuam rau lub suab nqus kev ua haujlwm ntawm centrifugal iav ntaub plaub. Yog hais tias qhov kev khiav hauj lwm tsawg dhau, nws txhais tau hais tias cov khoom tsis sib xws, thiab cov huab cua vibration yooj yim dhau mus, thiab lub suab nqus kev ua haujlwm raug txo; Rau centrifugal iav ntaub plaub, muaj qhov zoo txaus txaus rau lub suab nqus.

Hauv kev tsim vaj tsev, nws yog qhov nyuaj los ntsuas huab cua tsis kam, tab sis nws tuaj yeem kwv yees kwv yees thiab tswj tau los ntawm cov tuab thiab qhov ntom ntom.

1.Nrog rau qhov nce ntawm thickness, lub suab nqus coefficient ntawm nruab nrab thiab qis zaus nce ntau, tab sis lub siab zaus tsis hloov ntau npaum li cas (siab zaus nqus yog ib txwm loj dua).

2. When the thickness is unchanged, the bulk density increases, and the sound absorption coefficient of medium and low frequency also increases; but when the bulk density increases to a certain extent, the material becomes dense, the flow resistance is greater than the optimal flow resistance, and the sound absorption coefficient decreases instead. For centrifugal glass wool with a bulk density of 16Kg/m3 with a thickness of more than 5cm, the low frequency 125Hz is about 0.2, and the sound absorption coefficient of the medium and high frequency (>500Hz) nyob ze rau 1. Thaum lub thickness txuas ntxiv los ntawm 5cm, qhov qis- zaus suab nqus coefficient maj mam nce. Thaum lub thickness ntau dua 1m, qhov tsawg- zaus 125Hz suab nqus coefficient kuj yuav nyob ze rau 1. Thaum lub thickness tseem tsis hloov thiab qhov ntau ntom, qhov tsawg - zaus suab nqus coefficient ntawm centrifugal iav ntaub plaub kuj tseem yuav nce ntxiv. Thaum lub loj ceev yog nyob ze rau 110kg / m3, lub suab haum kev kawm nce mus txog lub nqi siab tshaj plaws, thiab nws yog nyob ze rau 0.6 - 0.7 ntawm ib tug tuab ntawm 50 hli thiab ib zaus ntawm 125Hz. Thaum cov khoom ntim ntau tshaj 120kg / m3, lub suab nqus kev ua haujlwm poob qis, vim tias cov khoom ua kom ntom ntom, thiab qhov nruab nrab thiab siab zaus lub suab nqus tau cuam tshuam zoo heev. Thaum qhov ntom ntom ntau tshaj 300kg / m3, lub suab nqus kev ua haujlwm poob qis heev. Lub thickness ntawm lub suab-absorbing iav ntaub plaub feem ntau siv nyob rau hauv architectural acoustics yog 2.5cm, 5cm, 10cm, thiab cov bulk ntom yog 16, 24, 32, 48, 80, 96, 112kg / m3. Feem ntau 5cm tuab, 12-48kg / m3 centrifugal iav ntaub plaub yog siv.

Lub suab nqus kev ua tau zoo ntawm centrifugal iav ntaub plaub kuj zoo sib xws nrog rau kev teeb tsa. Thaum muaj huab cua txheej tom qab lub iav ntaub plaub lub rooj tsavxwm, lub suab nqus cov nyhuv zoo ib yam li cov iav ntaub plaub nrog tib lub thickness tsis muaj cua txheej. Hauv particular, lub suab nqus kev ua tau zoo ntawm qhov nruab nrab thiab qis zaus yuav zoo heev dua li ntawm cov khoom uas txuas nrog rau qhov nyuaj hauv qab. Lub suab nqus coefficient yuav nce nrog qhov nce ntawm qhov tuab ntawm huab cua txheej, tab sis cov nyhuv yuav tsis pom tseeb tom qab nce mus rau qee tus nqi.

Kev siv stacked

Siv cov iav ntaub plaub nrog ntau qhov sib txawv los sib sau ua ke los ua ib daim ntawv ntawm maj mam nce qhov ntom ntom, uas tuaj yeem ua tiav lub suab nrov dua. Piv txwv li, stacking ib txheej ntawm 2.5cm tuab 24kg / m3 paj rwb board thiab ib txheej ntawm 2.5cm tuab 32kg / m3 paj rwb board ua ke muaj ib tug zoo suab nqus nyhuv tshaj ib txheej ntawm 5cm tuab 32kg / m3 paj rwb board. Lub 24kg / m3 iav ntaub plaub lub rooj tsavxwm yog tsim rau hauv 1m-ntev wedge nrog ib daim duab peb sab, qhov ntom ntom ntawm cov khoom nce zuj zus, thiab qhov nruab nrab lub suab nqus coefficient tuaj yeem ze rau 1. Cov iav ntaub plaub yog cov khoom lag luam. uas siv cov cuab yeej tshwj xeeb centrifugal rau fibrillate molten iav thiab ntxiv ib puag ncig tus phooj ywg formula binder raws li thermosetting resin. Nws yog cov khoom tsim los ntawm cov iav fibers nrog txoj kab uas hla tsuas yog ob peb microns. Elastic fiberglass cov khoom, thiab tuaj yeem xaiv cov dej noo{16}} pov thawj veneer hauv - kab sib xyaw ua ke raws li qhov sib txawv ntawm cov neeg siv khoom. Vim nws qhov loj ntawm cov pa me me, nws tuaj yeem ua lub luag haujlwm ntawm thermal rwb thaiv tsev, lub suab nqus thiab txo suab nrov, thiab kev tiv thaiv kev nyab xeeb. Cov khoom siv zoo tshaj plaws rau thermal rwb thaiv tsev, suab nqus thiab txo suab nrov. Cov txiaj ntsig tshwj xeeb, tshwj xeeb thev naus laus zis, tus nqi rov qab tom qab ntim ntim yog 99.2 feem pua. Mos, slender fiberglass minimizes fluff thaum tsim kho