Hauv kev ua haujlwm ntawm ntau- ntsia hlau extrusion tshuab, hloov tau peb - ntsia hlau extruders, nrog lawv cov qauv kev tsim kho tshiab thiab cov txiaj ntsig thev naus laus zis, tau maj mam dhau los ua cov cuab yeej tseem ceeb rau siab -kawg polymer ua. Cov cuab yeej no qhia txog tus ntsia hlau thib peb rau cov tsoos ntxaib- ntsia hlau extruder thiab ua rau nws muaj peev xwm them nyiaj elastic, yog li tsim cov yam ntxwv tshwj xeeb hauv kev xa khoom, yaj plasticizing, thiab sib tov sib xyaw, ua kom tau raws li cov kev xav tau ntawm ntau cov formulations thiab siab - cov ntaub ntawv ua tau zoo.
Ua ntej, cov nyhuv synergistic ntawm peb screws ho txhim kho kev sib xyaw thiab shearing efficiency. Peb cov ntsia hlau tau teem rau hauv ib qho tshwj xeeb thiab mesh nrog ib leeg, ua rau ntau-channel, ntau- cov khoom taw qhia kev txav mus los, ua rau kev faib cov yaj thiab cov khoom ntxiv hauv lub thoob ntau yam. Muab piv rau ntxaib- ntsia hlau extruders, peb - ntsia hlau qhov system ua rau thaj chaw zoo thiab kev sib tsoo ntau zaus nyob rau hauv tib qhov chaw, ua rau nws tshwj xeeb tshaj yog haum rau siab - filling, siab - viscosity, thiab ntau- cov khoom sib xyaw ua ke, ua kom muaj kev cuam tshuam kev cuam tshuam thiab kev cuam tshuam kev cuam tshuam.
Qhov thib ob, tus qauv tsim qauv yooj yim muab cov cuab yeej siv tus kheej - kho lub peev xwm. Yam tsawg kawg ib tus ntsia hlau tuaj yeem ua rau me ntsis hloov pauv hauv axial lossis radial kev taw qhia los tiv thaiv kev hloov pauv hauv kev tiv thaiv los ntawm kev hloov pauv ntawm cov khoom siv viscosity, muab ntim ntim hloov pauv, lossis qhov kub ntawm qhov sib txawv. Qhov no elastic nyiaj dynamically tswj zoo tagnrho ntsia hlau clearance thiab compression piv, tiv thaiv kom muaj zog noj vim lub zos overpressure los yog cov khoom degradation los ntawm localized overshearing, yog li txhim kho cov txheej txheem stability thiab cov khoom sib xws.
Thirdly, lub modular ntsia hlau thiab chim configuration txhim kho cov txheej txheem yooj. Screw Cheebtsam tuaj yeem muab tso ua ke rau hauv cov qauv uas muaj qhov sib txawv ntawm qhov sib txawv thiab lub zog shear raws li qhov xav tau, thiab lub thoob tuaj yeem ua rau nws tus kheej qhov kub thiab txias -tswj hauv cov cheeb tsam, ua tiav kev tswj xyuas thermal ua ke nrog cov ntsia hlau sab hauv cov cua txias. Qhov kev tsim no tso cai rau cov cuab yeej hloov pauv cov hom phiaj ua haujlwm sai, tau txais kev sib txuam plasticization curves los ntawm tshav kub-sensitive resins rau engineering plastics, shortening changeover thiab commissioning time.
Thib plaub, tus kheej -tu thiab qis- cov yam ntxwv khaws cia ua kom muaj peev xwm ntau lawm. Lub asymmetrical flow channel thiab elastic clearance ntawm peb - ntsia hlau txo qhov chaw tuag thiab cov khoom tsim. Ua ke nrog kev sib raug zoo nrawm, nws tuaj yeem ua kom cov phab ntsa sab hauv ntawm lub thoob huv si txawm tias nyob rau hauv kev kub ceev, txo qhov kev pheej hmoo ntawm batch - rau - batch paug thiab txo cov peev txheej ntau vim yog lub sijhawm tu.
Tsis tas li ntawd, cov qauv elastic kuj txo qis qhov hnav tsis sib xws ntawm cov ntsia hlau thiab lub thoob, ua kom lub neej kev pab cuam ntawm cov khoom tseem ceeb thiab txo qis txij nkawm thiab cov nqi khiav lag luam. Hauv cov ntsiab lus, qhov hloov pauv peb - ntsia hlau extruder, nrog rau nws cov txheej txheem thev naus laus zis ntawm kev sib xyaw ua haujlwm zoo, kev hloov kho ntse, hloov kho tau yooj yim, thiab ruaj khov thiab kev ntseeg siab, muab cov kev daws teeb meem rau kev ua cov ntaub ntawv qib siab uas ua ke nrog kev ua tau zoo thiab cov txiaj ntsig kev lag luam, thiab txhawb kev tsim cov tshuab extrusion ntawm precision thiab txawj ntse.