I. Muab cov hauv paus hniav hauv cov khoom siv raw
Kev tsim cov khoom lag luam pulp molded, ib ntu tseem ceeb hauv kev lag luam ntim ntawv, yog qhov tseem ceeb hauv cov txheej txheem papermaking. Ib qho kev sib koom ua ke muaj zog muaj nyob nruab nrab ntawm ob qho hauv kev kho ua ntej ntawm cov khoom siv raw. Ob qho tib si molded khoom thiab paperboard manufacturing feem ntau siv cov ntawv pov tseg los yog tsis yog - ntoo pulps raws li lawv lub hauv paus Tshuag. Cov khoom siv raw yuav tsum tau ua cov txheej txheem tseem ceeb: sorting, hydropulping / defibering, ntaus / refining, sizing, thiab npaj npaj.
Piv txwv li, kev tsim cov ntaub ntawv los ntawm cov ntawv pov tseg yuav tsum muaj fiber ntau sib cais hauv lub pulper, kev kho mob hauv cov khoom siv kho kom zoo dua qub, kev siv cov sizing tus neeg sawv cev los txhim kho cov khoom, ua ntej cov khoom lag luam yog pumped mus rau hauv seem tsim. Lub pulp molding ntau lawm kab qhia tau hais tias siab sib tshooj nrog cov kab ke no: nws zoo ib yam li ntawm hydraulic pulpers rau fiber ntau liberation, siv refining hauj lwm los hloov cov khoom pulp, siv sizing, thiab ces conveys cov Tshuag rau txoj kev tsim. Nyob rau theem no raw khoom ua, cov cuab yeej siv nyob rau hauv ob qho tib si txheej txheem ntau lawm yog interchangeable loj. Thawj qhov sib txawv tshwm sim hauv cov txheej txheem tom ntej thiab ziab khaub ncaws.
II. Common Foring Principple, Divergent Equipment
Hais txog kev tsim cov hauv paus ntsiab lus, ob lub thev naus laus zis muaj nyob rau hauv cov txheej txheem ntub dej - txheej txheem tsim. Lub hom phiaj tseem ceeb yog tib yam: dewatering ib qho fiber ntau ncua ntawm cov ntaub ntawv los tsim cov duab, ua raws li ziab los ua cov khoom kawg. Txawm li cas los xij, lawv cov kev siv tshwj xeeb thiab cov cuab yeej siv cuab yeej ua raws li txoj hauv kev sib txawv.
Kev sau ntawv ib txwm siv rau kev txuas mus ntxiv ob-sib nqus daim ntawv ntau lawm. Tshuag yog sib npaug faib mus rau hauv Foursdrinier (xaim) los yog lub tog raj kheej pwm tsim chav tsev. Dewatering tshwm sim nyob rau hauv seem hlau los tsim ib tug ntub web. Lub vev xaib no tau dewatered ntxiv rau hauv ntu xovxwm thiab tom qab ntawd nkag mus rau hauv ntu tshuab ziab khaub ncaws (piv txwv li, chav ua haujlwm -kho lub tog raj kheej rhaub) kom evaporate cov dej noo seem. Qhov kawg tso zis yog ib tug nruam yob los yog cov ntaub ntawv tiaj tus. Cov cuab yeej siv feem ntau yog lub tshuab loj, kev sib xyaw ua ke sib txuas ua ke, nias, thiab ziab ua haujlwm, tsim los rau kev kub ceev thiab loj - nplai ntau lawm.
Pulp molding tsom mus rau shaping peb -cov khoom seem. Cov khoom lag luam tau nkag mus rau hauv kev tsim pwm (poj niam lossis txiv neej) npog nrog cov hlau lossis yas mesh. Fibers tau muab tso rau hauv pwm nto thiab dewatered, feem ntau ntawm lub tshuab nqus tsev nqus tsev vacuum, los tsim ib tug ntub preform uas phim cov pwm lub contours. Cov txheej txheem no feem ntau cuam tshuam los yog batch- hom. Qhov ntub dej preform yog tom qab ntawd "tshem tawm" thiab pauv mus. Kev teeb tsa cov cuab yeej siv tau yooj yim dua. Lub tshuab tsim thiab tshuab ziab khaub ncaws tuaj yeem teeb tsa ua ke cais lossis sib xyaw ua ke rau hauv cov kab ntau lawm. Cov pwm tsim yog cov khoom tseem ceeb; nws cov qauv thiab mesh ncaj qha txiav txim siab cov khoom peb - qhov ntev thiab cov ntsiab lus ntawm cov qauv.
III. Txoj hauv kev sib txawv rau kev ziab thiab khoom siv
Kev teeb tsa ntawm theem ziab kom pom qhov sib txawv ntawm ob lub thev naus laus zis no. Lub tshuab ziab khaub ncaws yog ib qho tseem ceeb, sib cais tsis tau ntawm lub tshuab ntawv ib txwm siv. Lub tog raj kheej kom qhuav yog txheej txheem ntom ntom, tshem tawm cov dej noo feem ntau los ntawm kev coj ua thiab convection. Cov cuab yeej muaj kev sib koom ua ke siab, thiab kev tswj xyuas thermal efficiency yog qhov kev txhawj xeeb tseem ceeb.
Qhuav nyob rau hauv pulp molding muab kev yooj yim dua. Tom qab tsim, cov ntub dej preforms raug xa mus rau qhov chaw qhuav qhuav, qhov cub, lossis ntau-tier tshuab ziab khaub ncaws. Thaum tshav kub kub qhov chaw muaj ntau hom (hluav taws xob, roj, chav). Thaum tshav kub kub hloov feem ntau sib txuas convection thiab hluav taws xob. Vim tias cov khoom lag luam muaj peb - cov qauv sib txawv, cov txheej txheem ziab yuav tsum sib npaug ntawm cov khoom khaws cia nrog cov khoom sib xws. Tswj kom qhuav qhov kub, lub sij hawm, thiab cov qauv airflow yuav tsum tau precision ntau dua. Cov cuab yeej ziab tuaj yeem teeb tsa ntawm nws tus kheej, tso cai yooj yim dua nrog kev tsim cov cav tov ntawm cov peev txheej sib txawv. Qhov kev teeb tsa no haum rau kev tsim khoom ntawm ntau yam, customized khoom.
IV. Qhov sib txawv hauv cov khoom tsim thiab cov hom phiaj kev ua tau zoo
Cov txheej txheem sib txawv no coj ncaj qha mus rau cov khoom kawg sib txawv. Papermaking yields feem ntau nruam nplooj ntawv los yog yob (xws li, linerboard, corrugating nruab nrab). Nws qhov kev ua tau zoo tsom mus rau ob - qhov ntsuas qhov ntev xws li kev tsim cov khoom sib xws, lub zog, thiab du. Cov khoom no ua rau cov txheej txheem hloov pauv tom ntej xws li luam ntawv, tuag- txiav, thiab laminating.
Pulp molded cov khoom raug tsim ncaj qha rau hauv peb- cov khoom seem (xws li, tais, ntim khoom noj, cushioning inserts). Lawv qhov kev ua tau zoo tseem ceeb nyob hauv cov khoom siv tau los ntawm lawv cov qauv 3D: kev thauj khoom tshwj xeeb- bearing lub zog, cushioning kev ua tau zoo, stacking stability, thiab meej geometric haum. Lawv tsis yog cov khoom siv xwb; lawv ua tiav cov khoom siv nrog cov haujlwm uas tau hais tseg.
V. Technological Evolution thiab Industry Positioning
Los ntawm kev txhim kho kev xav, pulp molding tuaj yeem pom tau tias yog qhov tseem ceeb txuas ntxiv thiab kev tsim kho tshiab ntawm papermaking technology rau hauv peb lub -seem. Nws tau txais qhov ntub dej - tsim cov hauv paus ntawm papermaking tab sis tau tsim nws tus kheej cov txheej txheem kev ywj pheej hauv pwm tshuab, tsim cov dynamics, peb - qhov ntev kom qhuav, thiab cov txheej txheem shaping.
Tsav los ntawm kev loj hlob ntawm ib puag ncig xav tau thiab xav tau ntau ntxiv rau kev hloov kho cushioning / txhawb kev daws teeb meem hauv kev lag luam thiab cov neeg siv khoom ntim, qhov "peb -papermaking" thev naus laus zis txuas ntxiv mus. Nws yog ua kom tsis tu ncua hauv pwm precision, ntau lawm automation, thiab cov khoom siv functionalization (xws li, dej tsis kam, reinforcement).
Thaum sib koom ua cov khoom siv raw thiab cov hauv paus ntsiab lus ntawm kev ntub dej, pulp molding thiab cov ntaub ntawv ib txwm siv tau tsim rau hauv cov ceg kev paub meej. Lawv txawv ntawm cov khoom siv, hom kev tsim khoom (nruam txuas ntxiv thiab sib tshuam), cov khoom loj (2D vs. 3D), thiab cov hom phiaj ua haujlwm tseem ceeb. Cov qub tshwj xeeb hauv cov 3D fiber ntau ua los ntawm cov pwm kom tau raws li cov ntim tshwj xeeb thiab thauj khoom -cov kabmob ua haujlwm. Cov tom kawg yog ua raws li kev ua tau zoo, loj - nplai ntawm cov khoom siv tiaj tus fiber ntau -raws li cov ntaub ntawv. Ua ke, lawv tsim ib qho kev nplua nuj ntawm cov khoom siv fiber ntau ua cov thev naus laus zis.