Pulp molding compound
Nyob rau hauv thaum ntxov xyoo, cov khoom siv pulp molding feem ntau siv cov ntawv pov tseg ua cov khoom siv hauv paus, thiab siv cov cuab yeej tshwj xeeb thiab cov pwm los ua peb - qauv qauv los ntawm cov txheej txheem ntau los tsim cov khoom ntim thiab cov khoom ntawm ntau yam duab. Pulp molding cov khoom ua ntej pib los ntawm kev thauj cov ntim khoom siv rau cov qe, txiv hmab txiv ntoo thiab lwm yam khoom ua liaj ua teb thiab sab nrauv, thiab maj mam nthuav dav ntawm kev siv thiab kev tshawb fawb. Niaj hnub no, high- ntawv zoo- cov khoom yas ua los ntawm reeds, straw husks, qab zib, nplej straw, xyoob, ntoo, thiab lwm yam yog siv ntau thiab ntau lug, thiab muaj kev tiv thaiv ntim rau industrial cov khoom, xws li: electronics, khoom siv hauv tsev, sab nrauv, iav ceramic khoom, me machinery, thiab lwm yam. {7} Muaj cov khoom zoo. ntawv- cov khoom ntim khoom yas rau cov neeg siv khoom ruaj khov. Pulp molding feem ntau yog siv qis- nqi txuas dua tshiab thiab rov ua dua tshiab fiber ntau-raws li cov ntaub ntawv ntuj raws li cov khoom siv raw los tsim cov khoom siab -tus nqi thiab ib puag ncig- cov khoom ntim khoom zoo. Nws zoo nkaus li txo qhov kev siv ntawm foamed plastics. Ib puag ncig muaj kuab paug Tib lub sijhawm, nws tau qhib txoj kev tshiab dav rau kev rov ua dua ntawm cov ntawv pov tseg.
Cov txheej txheem ntawm cov khoom siv pulp molding
1. Pulping → pulping → pulping txheej txheem
Siv reeds, straw husks, qab zib, nplej straw, xyoob, ntoo thiab recycled ntawv raws li raw cov ntaub ntawv, los ntawm pulping, refining thiab lwm yam txheej txheem, nws yog tig mus rau hauv fibers, tshem tawm nyob rau hauv dej, thiab ua ib tug ntshiab pulp. Raws li cov yam ntxwv ntawm cov khoom kawg, nws tuaj yeem ua rau hauv cov txheej txheem ntawm pulping → pulping → pulping, tswj qhov ntev ntawm cov ntaub so ntswg fiber ntau, cov ntsiab lus ntawm cov ntaub so ntswg, ntxiv cov khoom siv ntxiv (brighteners, dej repellent, thiab lwm yam), dyes thiab lwm yam kev pab cuam, thiab qhov kawg muaj pes tsawg leeg tuaj yeem ua tau raws li cov khoom tsim tawm.
Khoom siv: pulper, tov tank, pulping tank, thiab lwm yam.
2. txheej txheem tsim
Cov txheej txheem molding ntawm cov khoom siv pulp molding yog tsuas yog los ntawm ntau txoj hauv kev xws li lub tshuab nqus tsev txoj kev thiab cov txheej txheem grouting, yog li ntawd cov khoom qub pulp yog tsim rau hauv cov duab npaj los ntawm pwm; ntawm cov uas lub tshuab nqus tsev txoj kev yog feem ntau siv thiab siv tau zoo tshaj.
Khoom siv: molding tshuab
3. Kev ziab kom qhuav
Cov txheej txheem kom qhuav yog qhov tseem ceeb ntawm lub tshuab ziab khaub ncaws siv roj, roj, roj, hluav taws xob lossis chav dej, cov roj hloov hluav taws xob lossis lwm yam nruab nrab raws li qhov cua sov, ua kom cua sov, ziab cov khoom lag luam hauv cov cua kub, thiab siv lub kiv cua los tshem tawm cov khoom evaporated. Moisture kom qhuav sai sai.
Cov cuab yeej siv: tshuab ziab khaub ncaws (cov txheej txheem cua sov: roj, roj, roj, chav, hluav taws xob cua sov)
4. Yas trimming txheej txheem
Tom qab cov khoom siv pulp yog tsim thiab qhuav, nws tau ua raws li lub hauv paus, thiab tom qab ntawd lub phaj cua sov yog rhuab los ntawm hluav taws xob cua sov los yog lwm yam cua sov nruab nrab (xws li cov roj hloov hluav taws xob), kom cov khoom siv pulp muaj qhov kub thiab txias (150 ~ 250 degree), siv cua siab lossis hydraulic siab, nias cov ntawv txhawb cov khoom nyob rau hauv qhov kub thiab siab siab ua kom cov duab zoo nkauj thiab zoo nkauj, thiab zoo dua poob siab.
Khoom siv: shaping, trimming tshuab
5. Ntim
Tshawb xyuas, ntim thiab khaws cov khoom uas thaum kawg tsim los ntawm cov txheej txheem ntau lawm. Raws li cov yam ntxwv ntawm cov khoom sib txawv, phau ntawv packing lossis tsis siv neeg ntim tshuab tuaj yeem siv rau suav thiab ntim.
Khoom siv: Active baler
Pulp molding khoom muaj cov yam ntxwv hauv qab no
1. Nws tuaj yeem tsim cov khoom lag luam nrog ntau yam kev qhia tshwj xeeb thiab cov duab los ntawm cov pwm, kom nws tuaj yeem hloov kho raws li qhov xav tau ntim ntawm cov khoom ntawm ntau cov duab, pab txhawb kev thaiv thiab qhov chaw, thiab tiv thaiv pob.
2. Cov ntawv yog lub teeb thiab mos, thiab tag nrho cov qauv muaj lub zog tsim nyog thiab rigidity, uas ua rau nws zoo heev hauv kev tiv thaiv thiab cushioning.
3. Nws muaj qhov zoo tshaj plaws qhov cua thiab nqus dej noo, uas yog qhov zoo rau kev khaws cov khoom noj. Ntev npaum li qhov tsim nyog cov tshuaj tiv thaiv dej ntxiv rau cov slurry, cov ntawv molded cov khoom tuaj yeem tau txais cov dej tsis zoo; Piv txwv li, cov tais qe thiab cov txiv hmab txiv ntoo tuaj yeem ntim dej ntawm qhov kub tsis siab tshaj 35℃hauv 24 teev. Lub ntim ntim sab hauv ntawm cov khoom lag luam dav dav tsis tas yuav tsum muaj cov haujlwm no, vim tias cov dej tsis muaj dej yuav tsum yog qhov yuav tsum tau khaws cia, kev thauj mus los thiab kev ntim khoom sab nraud.
4. Pulp molded khoom tuaj yeem yog nplaim hluav taws-retardant, anti-static, waterproof, film-coated, luam tawm, thiab siv nyob rau hauv lub khw muag khoom ntim ntim raws li xav tau.
5. Nyob rau hauv cov nqe lus ntawm kev tiv thaiv ntim, pulp molded qhov chaw muaj ntau qhov zoo dua EPS, EPE, thiab EPP tsis khoom:
A. Cov khoom siv raw ntawm cov khoom ntim cov khoom ntim khoom yog cov ntawv pov tseg thiab ntau cov ntaub ntawv fiber ntau, uas yog cov khoom siv dav thiab khaws tau yooj yim, uas yuav tsis cuam tshuam rau ib puag ncig thiab rov ua dua tshiab, thiab tsim nyog rau cov khoom xa tawm. Thiab foamed plastics yog muab los ntawm cov khoom siv roj av, thiab cov peev txheej depletion thiab nqi teeb meem yuav dhau los ua qhov hnyav dua.
B. Pulp molding ntim cov khoom siv dav siv hauv ntau hom kev siv, thiab cov khoom siv ua npuas ncauj li hauv ob sab hauv tuaj yeem hloov pauv los ntawm cov khoom siv pulp molding. Pulp molding cov khoom tuaj yeem muab tso ua ke thiab khaws cia, uas yog 1/2 ~ 2/5 tsawg dua qhov chaw cia khoom nyob hauv foamed plastics, thiab cov nqi thauj khoom thiab cov nqi cia me me.
C. Cov khoom siv ntawv muaj cov khoom zoo los tiv thaiv- zoo li qub, thiab cov yas foamed yog qhov ua rau hluav taws xob zoo li qub vim muaj kev sib txhuam, uas muaj kev tiv thaiv zoo rau cov khoom siv hluav taws xob thiab cov khoom siv hauv tsev.
D. Thaum cov khoom yas ntim khoom, cov khoom noj khoom haus tsis yooj yim rau evaporate, thiab nws yooj yim rau pwm thiab rot, thaum cov khoom siv ntawv muaj cov dej vapor permeability, thiab tom qab ntawd ua tiav los tiv thaiv - cov nyhuv corrosion.
E. Tam sim no, daim ntawv moldings yog pheej yig dua li ua npuas ncauj yas raws li cov nqi ntim tshwj xeeb.
6. Cov khoom siv raw yog dav thiab siv tau raws li cov khoom pov tseg, nrog cov txiaj ntsig tseem ceeb hauv kev sib raug zoo, thiab cov khoom siv rov ua dua tshiab yog siab. Tsis muaj teeb meem cov khoom pov tseg hauv kev tsim khoom lossis cov khoom tiav tom qab siv, lawv tuaj yeem siv los ua cov khoom siv raw rau remanufacturing.
Txoj kev loj hlob ntawm Pulp Moulding
Kev ua lag luam rau pulp molding ntim cov ntaub ntawv yog qhov paub tab. Tam sim no, peb lub chaw tsim khoom siv tshuab tsim tawm hauv Pearl River Delta, Yangtze River Delta thiab Beijing, Tianjin thiab Dalian cheeb tsam tau tsim nyob rau hauv Suav teb. Tshwj xeeb txij li xyoo 2001, cov tuam txhab muaj feem cuam tshuam tau nce 20% txhua xyoo. Thaum lub sij hawm ntawd, theem kev loj hlob ntawm domestic pulp molding tshuab yog ze rau ntawm txawv teb chaws lub teb chaws, thiab ntau domestic pulp molding manufacturers muaj peev xwm tsim cov khoom siv sib xws, cov txheej txheem tshwj xeeb thiab cov khoom siv los tsim cov nruab nrab thiab siab - ntawv kawg - cov khoom ntim yas.
