Pulp molded cov khoom tau dhau los ua cov khoom ntim tshiab sai sai hauv xyoo tas los no, thiab lawv yog lwm txoj hauv kev zoo rau ntoo. Cov txheej txheem ntawm cov pulp molding tuaj yeem muab sau ua tsib kauj ruam tseem ceeb: pulping, blending, forming, drying, shaping, and post- processing.
Pulping, Blending, thiab Forming Kauj Ruam: Qhov no yog thawj kauj ruam hauv kev tsim cov khoom siv pulp molded, uas yog qiv los ntawm cov txheej txheem papermaking. Txij li cov ntawv pov tseg los ntawm ntau qhov chaw, nws yuav tsum tau ua tib zoo txheeb thiab txhua yam ntawm impurities tshem tawm ua ntej pulping. Tom qab ntawd, cov ntawv txheeb thiab purified pov tseg yog av thiab pulped rau hauv cov ntawv fibers. Tom qab ntawd, lub pulp yog sib xyaw kom tau raws li qhov yuav tsum tau ua ntawm cov khoom uas yuav tsum tau ua, raws li qhov ceev, hardness, thiab xim ntawm cov ntaub ntawv nyoos yuav txawv. Thaum kawg, lub pulp yog coated nrog cov nplaum, xws li rosin, paraffin emulsion, los yog rosin -paraffin nplaum. Qhov concentration ntawm pulp thaum lub sij hawm tsim khoom yuav tsum yog siab, nyob ib ncig ntawm 1% -2%. Khoom siv: pulper, blending pas, pulp pas, thiab lwm yam.
Txoj Kev Ua Cov Kauj Ruam: Cov txheej txheem tsim cov khoom siv pulp molded tsuas yog siv ntau txoj hauv kev xws li lub tshuab nqus tsev molding thiab slurry molding los tsim cov khoom qub pulp rau hauv cov duab xav tau tsim los ntawm cov pwm. Lub tshuab nqus tsev molding yog txoj kev siv ntau tshaj plaws thiab siv tau zoo. Tom qab tsim, cov pwm yog lifted nrog kev pab los ntawm hydraulic thooj voos kheej kheej, thiab sab sauv thiab sab pwm raug kaw kom compress cov khoom, uas feem ntau squeezes tawm ib co ntawm noo noo nyob rau hauv cov khoom. Feem ntau, cov ntsiab lus noo noo ntawm cov khoom tom qab compression yog li ntawm 50% -75% vim muaj ntau theem ntawm extrusion. Khoom siv: molding tshuab.
Kauj Ruam Qhuav: Kev ziab ntawm cov khoom siv pwm pwm feem ntau yog ua nyob rau hauv ib lub sij hawm los yog tas li ziab qhov cub, nrog lub hom phiaj tseem ceeb ntawm kev txo cov dej noo ntawm cov khoom mus rau 10% -12%. Cov cua kub feem ntau yog siv los ziab cov khoom hauv qhov cub kom qhuav lossis ziab kom qhuav tas li. Thawj qhov kub yog 250℃-300℃(cov dej noo ntawm cov khoom txo qis los ntawm 50% hauv 7-10 vib nas this), thiab tom qab ntawd nws poob rau 100℃-105 degree. Hauv qhov cub kom qhuav tas mus li, cov khoom raug xa mus los ntawm qhov sib txawv ntawm qhov kub thiab txias kom txog thaum nws qhuav mus rau cov ntsiab lus noo ntawm kwv yees li 10% -12%. Khoom siv: tshuab ziab khaub ncaws.
Shaping Kauj Ruam: Lub shaping ntawm pulp molded cov khoom yog feem ntau nqa tawm los ntawm kub extrusion ntawm lub kub molding tshuab, ua cov khoom denser, nrog uniform phab ntsa thickness, du thiab tiaj tus, thiab txhim kho lub zog, uas yog ib qho tseem ceeb rau cov khoom. Qee zaum, qee cov cim yuav tsum tau nias rau ntawm daim ntawv pwm, uas tuaj yeem ua tiav hauv cov kauj ruam no kom tsis txhob muaj cov cim tsis meej lossis ntxhib. Khoom siv: trimming thiab shaping tshuab.
Ncej- Cov kauj ruam ua tiav: Tom qab ziab, cov khoom siv pwm tuaj yeem siv tau, tab sis qee zaum kev tshaj tawm tshwj xeeb - yuav tsum tau ua, xws li polishing, txheej ci, lossis luam tawm cov qauv thiab cov ntawv sau rau saum npoo. Nyob ntawm cov yam ntxwv ntawm cov khoom sib txawv, phau ntawv lossis lub tshuab ntim tsis siv neeg tuaj yeem siv rau suav thiab ntim. Khoom siv: tsis siv neeg ntim tshuab.
