Covib-screw extruder muaj ib tug ntsia hlau nyob rau hauv lub chim. Feem ntau, qhov ntev zoo tau muab faib ua peb ntu, thiab peb qhov ntev ntev yog txiav txim siab raws li txoj kab uas hla ntawm cov ntsia hlau, lub suab, thiab qhov tob ntawm cov xov xov, thiab feem ntau sib npaug ntawm ib feem peb ntawm txhua.
Conveying segment: Pib los ntawm cov xov kawg ntawm cov khoom nkag, nws yog hu ua ntu conveying. cov khoom yuav tsum tsis txhob yuav plasticized ntawm no, tab sis yuav tsum tau preheated thiab compressed;
Melting ntu: Cov ntu compression. Qhov ntim ntawm cov ntsia hlau zawj hauv ntu no maj mam txo los ntawm qhov loj mus rau me me, thiab qhov kub thiab txias yuav tsum tau ua kom tau raws li qib plasticizing ntawm cov khoom. Compression tshwm sim ntawm no (lub ntim yog 3 nyob rau hauv lub conveying segment, thiab nws yuav tsum tau compressed rau ntim 1 ntawm no. Qhov no yog hu ua compression ratio ntawm cov ntsia hlau - 3: 1. Qee cov cav tov kuj txawv), thiab cov plasticized. cov ntaub ntawv mus rau ntu thib peb.
Metering seem yog metering seem, qhov twg cov khoom tuav ib tug plasticizing kub los muab lub taub hau, uas feem ntau yog me ntsis siab tshaj lub plasticizing kub.
Lub ntxaib-ntsia hlau extruder muaj ntxaib ntsia hlau nyob rau hauv lub chim.Lub ntsia hlau system ntawm parallel ntxaib ntsia hlau extruder feem ntau muab faib ua 4 seem: conveying seem, melting seem (chaw chaw nres nkoj), plasticizing seem (nqus chaw nres nkoj), paug seem.
Conveying seem: lub luag haujlwm yog thauj khoom thiab tiv thaiv kev tawm tswv yim.
Melting seem: seem no los ntawm kev kub nyhiab thiab kev sib txhuam shear, kom cov khoom yog tag nrho melted thiab tov.
Plasticizing seem: cov khoom ntawm cov khoom yog ntxiv melted thiab tov, nrog rau kev faib thiab dispersion mixing muaj nuj nqi.
Tshem tawm seem: conveying thiab pressurizing, tsim ib tug tej yam siab, ua cov khoom los ze zog, thaum ntxiv sib tov, kom ua tiav lub hom phiaj ntawm extrusion granulation.
Qhov sib txawv ntawm Ib leeg thiab ntxaib ntsia hlau extruder
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Yam khoom |
Ib leeg ntsia hlau extruder |
Twin ntsia hlau extruder |
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Screw diameter ratio |
luv dua, feem ntau piv yog 7: 1 ~ 11: 1, tab sis kuj muaj 18: 1 |
Ntau dua, 12: 1 ~ 16: 1 |
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Ntsia hlau seem puab |
Daim duab plaub |
arc-zoo li |
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Ntsia hlau qauv |
Yooj yim |
nyuaj |
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Degree ntawm kev tu cov cuab yeej |
Ib txwm |
Nyuaj |
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Kev tswj qhov kub thiab txias |
Kev tswj qhov kub thiab txias yog qhov yooj yim |
Kev tswj kub tsis yooj yim |
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Yooj yim theem ntawm kev hloov granules |
Yooj yim dua |
Ib txwm |
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Kev tsim qauv |
Yooj yim |
nyuaj |
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yooj |
nruj dua, tsis tuaj yeem ua ke |
tuaj yeem ua ke dawb |
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Kev ua tau zoo |
Qhov kev ua tau zoo tsuas yog ib nrab ntawm ob-ntsia hlau extruders |
Cov zis loj, ceev ceev extrusion ceev, tsis tshua muaj zog noj ib chav tsev tso zis, vim nws zoo sib tov thiab cua sov ntawm raw cov ntaub ntawv, cov khoom tsim muaj ntau yam sib xws thiab zoo dua. |
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Tus nqi |
qis |
Siab dua |
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Plasticizing muaj peev xwm |
Ib leeg ntsia hlau yog tsim rau plasticizing polymer extrusion, haum rau extrusion ua cov ntaub ntawv granular, xws li molding, tshuab zaj duab xis, txhaj molding, thiab lwm yam. |
Lub ntxaib-ntsia hlau extruder muaj kev sib xyaw zoo plasticizing muaj peev xwm thiab tsim nyog rau kev hloov kho ntawm cov yas. Thiab ntxaib-ntsia hlau extruder tuaj yeem tsim ob xim. |
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Cov ntaub ntawv siv |
PP, PE, PS, ABS, PMMA, PVC |
HDPE, PE, PP, ABS, PC, EVA + CaCO3, Talc, TiO2 thiab lwm yam. |
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Daim ntawv thov scenarios |
Ib leeg ntsia hlau extruders yog dav siv nyob rau hauv zus tau tej cov yas kav, daim hlau, films, thiab profiles; |
Twin ntsia hlau extruders feem ntau yog siv rau kev tsim cov khoom sib xyaw thiab cov khoom siv polymer, thiab lawv lub peev xwm feem ntau muaj zog dua li cov ntsia hlau extruders. |
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rhiab heev rau metallic txawv teb chaws lub cev nyob rau hauv cov ntaub ntawv |
Tus txheeb ze rhiab heev, nws tsis yooj yim rau kev ua cov hmoov ua dua tshiab |
Tsawg rhiab heev |
Yuav Ua Li Cas Xaiv Yas Extruder?
Ib leeg ntsia hlau extruder thiab ntxaib ntsia hlau extruder txhua tus muaj lawv tus kheej zoo thiab qhov tsis zoo. Qhov zoo ntawm ib qho ntsia hlau extruder yog tus nqi qis, kev saib xyuas yooj yim thiab kev ua haujlwm; Qhov tsis zoo yog tias qhov kev ua tau zoo ntawm cov khoom siv tsawg, thiab nws tsis tuaj yeem tsim cov khoom lag luam siab uas yuav tsum tau ua los ntawm lub kaw lus. Lub ntxaib-ntsia hlau extruder muaj kev ua haujlwm siab, cov khoom zoo, tab sis tus nqi siab, cov cuab yeej siv, thiab kev ua haujlwm nyuaj.
Nws yog ib qho tseem ceeb heev los xaiv qhov tsim nyog extruder raws li raw cov ntaub ntawv. Kev nkag siab txog qhov sib txawv thiab qhov zoo thiab qhov tsis zoo ntawm ib leeg ntsia hlau extruders thiab ntxaib-ntsia hlau extruders tuaj yeem pab cov lag luam xaiv cov khoom siv ntau lawm.