Daim ntawv pwm yog peb-cov ntaub ntawv seem uas siv cov ntawv pov tseg, cov ntaub so ntswg, cov ntaub so ntswg thiab lwm cov fibers ua cov ntaub ntawv raw, thiab raug molded rau hauv peb- cov ntaub ntawv loj. Vim lawv cov kev ua tau zoo thiab kev tiv thaiv ib puag ncig, tam sim no lawv tau siv dav. Nrog rau kev loj hlob ntawm cov txheej txheem ntau lawm, daim ntawv txhawb nqa yog tam sim no Nws tuaj yeem ua rau ntau qhov ntau thiab ntau, tab sis nyob rau hauv cov txheej txheem ntawm cov ntawv tais, ziab yog txheej txheem tseem ceeb heev, thiab nws muaj tus nqi ntau lawm. Cov txheej txheem ntau lawm tuaj yeem txhim kho qhov ua kom qhuav ntawm daim ntawv tais li cas?
Cov khoom siv raw ntawm daim ntawv tais tsuas yog kwv yees li 1% daim ntawv fiber ntau slurry. Tom qab tsim cov ntawv ntub dej, cov ntawv ntub dej yuav tsum tau nias kom txo cov dej noo ntawm daim ntawv ntub dej mus rau 55%, thaum cov dej ntsiab lus ntawm cov ntawv tais yog siab li 65% -75% tom qab tsim. Nws yog ib qho nyuaj rau siv cov txheej txheem los txo cov dej noo. Nyob rau hauv cov txheej txheem ntawm cov ntawv tais, txog 3.5-4.5KG dej yuav tsum tau muab tshem tawm los ntawm txhua kilogram ntawm tiav daim ntawv tais los ntawm cov txheej txheem ziab, seb nws yuav txo tau cov nqi ntau lawm los yog txhim kho cov ntaub ntawv zoo. , Nws yog ib qho tseem ceeb heev los txhim kho kev ziab kom qhuav!
Cov ntawv ntub dej pwm nrog cov ntawv fiber ntau yog cov khoom ntxeem tau nrog cov qauv capillary sab hauv, thiab cov dej noo muaj nyob nruab nrab ntawm qhov chaw ntawm cov fiber ntau thiab cov pores ntawm fiber ntau capillary. Cov ntaub ntawv txhawb nqa cov khoom siv rau lub ntim ntim ntawm cov khoom feem ntau xav tau cov khoom zoo dynamic cushioning, thiab cov dej noo hauv lawv tsis tuaj yeem tshem tawm tag nrho los ntawm kev siv tshuab nias, tab sis yuav tsum tau muab tshem tawm los ntawm ziab. Yog li ntawd, piv nrog rau cov pa ntawv ziab txheej txheem, lub zog ziab ntawm cov khoom siv molded yog siab heev.
Ntawm qhov tod tes, cua kub ua raws li qhov cua sov los muab lub zog rau tshem tawm cov dej noo, thiab ntawm qhov tod tes, nws ua raws li cov khoom siv noo noo kom tshem tawm cov dej noo tas li evaporating. Cov dej noo nyob rau hauv daim ntawv ntub dej yog nyob ntawm qhov sib txawv ntawm cov dej sab hauv thiab sab nraud. Qhov thiaj li -hu ua internal diffusion yog hais txog cov txheej txheem tsiv teb tsaws ntawm cov dej hauv cov ntaub ntawv ntub dej los ntawm sab hauv mus rau sab nrauv, thiab sab nraud diffusion yog hais txog cov dej evaporation ntawm nws qhov chaw. Cov txheej txheem ntawm kev tshem tawm. Tus nqi dryness ntawm daim ntawv txhawb nqa yog nyob ntawm qhov ceev ntawm sab hauv thiab sab nraud diffusion ntawm cov dej noo thiab qhov sib npaug thiab kev sib koom ua ke ntawm ob. Cov txheej txheem tsim nyog yuav tsum tau tsim nyob ib ncig ntawm ob qho tib si saum toj no thiab lub cev qhuav dej ntawm cov khoom txhawb nqa ntawv!
Kev siv cov ntawv pwm kuj yog qhov dav thiab dav. Daim ntawv pwm tshuab thiab cov khoom lag luam thawj zaug tau tshwm sim hauv tebchaws Denmark, thiab hauv xyoo 1960, kev tsim khoom siv hluav taws xob sib dhos tuaj yeem tsim tau, tab sis lub sijhawm ntawd nws tseem tsis tau tsim ntau yam kev siv. Txog thaum lub ntim yas ua rau muaj ntau yam dawb paug hauv kev tsim khoom txhua hnub thiab lub neej, thaum ib hom tshiab ntawm cov khoom ntim khoom noj khoom haus tau ceev ceev ntawm kev ua lag luam, daim ntawv pwm ntim tau txais kev saib xyuas. Tam sim no, ntau lub tebchaws tsim kho xws li Tebchaws Europe thiab Tebchaws Meskas tau ua tiav thiab txhawb nqa cov thev naus laus zis no. Txoj kev loj hlob ntawm daim ntawv tais ntim kev lag luam.
Yav dhau los: Yuav ua li cas nce qhov kev siv ntawm cov ntawv tais
