Paper tray packaging manufacturers Tam sim no, kev siv cov ntawv ntim ntim tuaj yeem pom nyob txhua qhov chaw hauv txhua qhov chaw ntawm lub neej, thiab ntau cov khoom ntim khoom siv hauv khw tau maj mam hloov los ntawm cov ntawv ntim ntim. Daim ntawv tais yog cov khoom tsim los ntawm cov ntawv pulp. Cov tais ntawv yog tam sim no ib puag ncig tus phooj ywg thiab cov tswv yim tshiab ntim, yog li cov khoom lag luam hauv ntau lub teb tau maj mam pib siv cov tais ntawv ua ntim. Daim ntawv ntim ntim feem ntau yuav tsum tau kho raws li koj tus kheej cov khoom, yog li dab tsi yog cov txheej txheem tshwj xeeb ntawm cov ntawv tais ntau lawm?
Dab tsi yog cov txheej txheem tshwj xeeb ntawm cov ntawv tais ntim khoom rau cov ntawv ntim cov khoom lag luam:
1. Sib tsoo thiab ntaus
Muab cov ntawv pov tseg lossis straw coj mus muag lub rooj tsavxwm rau hauv hydraulic pulper thiab tawg rau hauv cov ntaub so ntswg dua. Cov khoom ntim khoom lag luam feem ntau siv rau hauv kev tsim cov kab rov tav hydraulic pulpers, thiab cov pulp concentration thaum tawg yog 5% -8%. Nws qhov zoo tsuas yog disperse daim ntawv fibers, tsis muaj tej nyhuv, siab disintegration efficiency, luv luv disintegration lub sij hawm, tsawg zog noj, yooj yim qauv, me me hneev taw, thiab yuav kho cov ntawv pov tseg nrog ntau dopants thiab hlau impurities.
Lub crushed pulp poob mus rau hauv lub tank cia, kho qhov tsim nyog concentration, thiab twj tso kua mis mus rau ib tug intermittent beater los yog ib tug nruam refiner los yog ib tug refiner rau ntaus. Lub pulp kuj tuaj yeem raug crushed raws li kev xav tau ntau lawm. Tom qab lub siab -concentration tu tshuab, fiber ntau deconstruction tshuab, thiab ob -disc refiner, lub slag tshem tawm, deconstruction, thiab ntaus raug ua, thiab cov slurry ntaus yog tawm mus rau hauv lub tank los yog slurry mixing tank rau siv. Lub degradation℃ntawm kev ntaus yog feem ntau 28 degrees -35 degrees.
2. Ntxoov ntxoo
Nyob rau hauv tus txheej txheem ntawm kev ntaus, ntau cov ntaub ntawv raw tuaj yeem muab ntau ntxiv rau lub tank slurry raws li tus qauv slurry piv, thiab slurry tuaj yeem raug cais tawm thiab me me ntawm cov khoom siv ntxiv tuaj yeem ntxiv. Yog hais tias tus neeg sawv cev sizing ntxiv los ua kom cov kua permeability tsis kam ntawm daim ntawv molded khoom, tus neeg sawv cev sizing siv feem ntau yog rosin, paraffin wax latex lossis rosin paraffin wax kua nplaum. Nws yog ib qho tsim nyog hais tias cov khoom tom qab ntxiv cov tshuaj ntxiv no tsis tuaj yeem hu ua daim ntawv tais. Rau cov khoom uas tsis yog- nplaum nplaum nplaum, ntxiv 3% rosin kua nplaum sib npaug rau qee qhov qhuav fiber ntau ntawm cov tawv nqaij; rau kev sib txuas cov khoom siv khib nyiab, ntxiv 1.5% -2% rosin kua nplaum.
Nws kuj tseem tuaj yeem ntxiv talc hmoov ua cov muab tub lim rau hauv cov ntaub so ntswg kom ua tiav tus nqi tuav ntau dua ntawm cov slurry. Kev tshem tawm aqueous uas muaj 20% -30% talc muab tub lim tuaj yeem ua tiav hauv qhov sib tov ntawm kev kub ceev rau 6 feeb, tom qab ntawd diluted nrog dej, tom qab ntawd ntxiv cov tshuaj ntxiv, thiab tom qab ntawd ua tiav rau 5 feeb los ua ib qho kev ncua, thiab tom qab ntawd ntxiv rau cov slurry, qee cov ntawv phaj manufacturers kuj ntxiv ib qho me me ntawm cov roj repellent, repellent tus neeg sawv cev rau cov roj repellent. slurry. Nyob rau hauv cov txheej txheem pulping, qhov tsim nyog ntawm cov dej dawb los yog dej huv yuav tsum tau ntxiv los kho cov pulp concentration rau 1% -2% rau kev tsim cov khoom pwm.
3. Ntawv molding
Kev sib sau yog txheej txheem tseem ceeb hauv kev tsim cov ntawv tais. Nws plays lub luag hauj lwm txiav txim siab nyob rau hauv qhov zoo, breakage tus nqi, ntau lawm zog noj thiab ntau lawm efficiency ntawm daim ntawv molded khoom. Raws li lub hauv paus ntsiab lus ntawm lub cev qhuav dej ntawm cov cuab yeej tsim, muaj ob txoj hauv kev tseem ceeb rau kev tsim cov ntawv tais: lub tshuab nqus tsev thiab hydroforming.
Lub tshuab nqus tsev txoj kev yog lub tshuab nqus tsev vacuum. Muab cov pwm pwm tso rau hauv cov kua txiv hmab txiv ntoo nrog cov concentration ntawm li 1%, thiab nqus cov pwm kab noj hniav kom tsim lub siab tsis zoo, kom cov fibers hauv cov ntaub so ntswg sib npaug ntawm cov pwm tsim pwm ntawm cov pwm pwm, uas tau muab tshem tawm thaum lub tshuab nqus tsev nqus dej ntau. Thaum cov khoom ncav cuag qhov xav tau tuab, cov molding tuag raug tshem tawm ntawm slurry rau extrusion thiab lub cev qhuav dej kom txog thaum cov dej ntsiab lus ntawm cov khoom yog 75% -80%, thiab tom qab ntawd compressed cua nkag mus rau hauv pwm kab noj hniav kom tso cov ntawv ntub dej. Txoj kev no muaj kev ua haujlwm siab ntau lawm thiab cov khoom sib xws. Haum rau ua nyias qhov chaw uas tsis sib sib zog nqus, xws li cov ntawv tais rau ntim cov qe, txiv hmab txiv ntoo, cutlery, tais thawv, thiab lwm yam.
Cov txheej txheem hydroforming siv hydraulic siab los ua kom muaj zog squeezing ntau dua los ntawm hydraulically tsav txhua yam khoom siv. Nws txoj hauv kev ua haujlwm yog txhawm rau txhaj ib qho nyiaj ntawm cov pulp rau hauv cov pwm kab noj hniav, thiab cov pwm sab saud qis qis rau hauv qhov kev txiav txim ntawm hydraulic siab, thiaj li hais tias lub pulp yog tsim nyob rau hauv lub mesh pwm nyob rau hauv lub pwm kab noj hniav thiab cov dej tawm. Los ntawm hauv qab ntawm tus qauv net. Cov khoom raug tshem tawm ntawm pwm los ntawm lub tshuab nqus tsev nqus thiab xa mus rau cov txheej txheem tom ntej. Vim yog lub siab molding siab, txoj kev no yog tsim los tsim cov khoom lag luam ntiav nrog lub hauv paus hnyav thiab ntau dua.
