saib tag
Nrog txoj kev loj hlob sai ntawm kev lag luam yas, cov khoom siv raw khoom hauv cov txheej txheem ntawm cov khoom siv extrusion tsuas yog cia siab rau phau ntawv hnyav, kev sib xyaw pub mis yog qhov nyuaj kom ntseeg tau tias nws ua haujlwm zoo thiab ua haujlwm tau zoo, tshwj xeeb tshaj yog nrog kev loj hlob sai ntawm multi-txheej co-extrusion technology, Cov khoom siv raw khoom ntawm cov txheej txheem yas extrusion tau maj mam hloov mus rau hauv ib qho kev tsis siv neeg qhov system engineering integrating raw khoom, qhuav, tswj, cia khoom. Ntawm qhov tod tes, niaj hnub no kev lag luam kev lag luam yas tau ntsib kev sib tw loj zuj zus thiab kev hloov pauv kev lag luam tas li, yuav ua li cas kom ntseeg tau cov khoom zoo thiab kev sib tw hauv kev ua lag luam, qib siab ntawm kev hloov pauv hauv kev tsim khoom yog qhov tsim nyog, thiab txo cov nqi ntawm cov khoom yog qhov tseem ceeb dua. Kev ntsuas ntsuas ntsuas tshuab yog ib qho cuab yeej tshiab uas tau tsim los sai sai kom tau raws li qhov xav tau ntawm cov neeg hauv kev lag luam yas extrusion, thiab tau nyiam dav.
Nyob rau hauv cov txheej txheem ntawm yas extrusion molding,Cov khoom siv raw khoom ntawm extruder feem ntau muab faib ua peb kauj ruam: thawj zaug yog ntsuas txhua yam uas yuav tsum tau ua los ntawm extruder, qhov thib ob yog sib tov cov khoom uas yuav tsum tau ua los ntawm txhua tus extruder, thiab qhov kawg yog muab cov khoom sib tov sib xyaw rau lub extruder hopper los ntawm cov ntsia hlau plasticizing thiab melting extrusion. Qhov kev coj ua ib txwm ua yog kom ua tiav - kab hnyav, uas yog, muaj pes tsawg pob khoom ntawm cov khoom tseem ceeb (25kg) thiab muaj pes tsawg pob khoom ntawm cov khoom siv, thiab tom qab ntawd muab cov khoom sib xyaw rau hauv lub extruder hopper. Qhov kev xyaum no feem ntau ua rau muaj teeb meem ntau: xws li qhov hnyav tsis raug; Cov sib tov tsis sib xws, tshwj xeeb tshaj yog cov dispersion ntawm additives nyob rau hauv multi- cov khoom xyaw tsis txaus; Qee zaum cov khoom pov tseg ntawm cov khoom siv raw thiab kev nce nqi ntawm kev ua haujlwm yog tshwm sim los ntawm cov khoom siv dag zog ntau dhau. Tsis muaj peev xwm muab tau tiag - lub sij hawm extruder ntau lawm, tsis muaj kev tswj kom zoo thiab lwm yam. Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum tau siv rau ntawm - kab nruam qhov hnyav ntawm qhov sib tov, uas tuaj yeem ua tau zoo kom ntseeg tau tias txhua yam khoom raug ntsuas thiab ntsuas raws li qhov hnyav feem pua yuav ua tiav, txhawm rau ua tiav lub hom phiaj ntawm kev sib xyaw ua ke.
Ntawm qhov tod tes,Cov txheej txheem extrusion tswj nyob rau hauv cov txheej txheem ntawm yas extrusion xav kom tus neeg teb xov tooj teem lub ceev ntawm lub extruder thiab phau ntawv hloov kho, thiab qhov no tsis tuaj yeem lav qhov extrusion tso zis tas li, thiab dhau sij hawm, vim qhov hloov pauv ntawm qhov kub thiab txias, qhov xwm txheej ntawm cov ntxaij lim dej thiab lwm yam kev hloov pauv, extrusion tso zis feem ntau yuav hloov raws sij hawm, Vim tias qhov ceev ntawm cov ntsia hlau thiab cov khoom siv hluav taws xob, qhov hnyav ntawm cov khoom siv hluav taws xob yog qhov hnyav. yog, longitudinal thickness ntawm cov khoom, cuam tshuam rau qhov zoo ntawm cov khoom. Daim duab hauv qab no qhia txog qhov hloov pauv ntawm qhov ntsuas qhov hnyav ntawm cov khoom nrog cov khoom siv extrusion.
Nyob rau hauv cov nqe lus ntawm extrusion tswj, xws li 'meter' hnyav tswj, nws yog feem ntau muab faib ua peb txoj kev: traction meter hnyav tswj hom, extruder meter hnyav tswj hom thiab traction extruder synchronous meter hnyav tswj hom, raws li qhia nyob rau hauv daim duab hauv qab no . 1) Traction meter hnyav tswj txhais tau hais tias lub meter hnyav ntawm cov khoom yuav tsum tau teem ua ntej. Hauv hom tsis siv neeg, qhov sib txawv ntawm qhov teeb tsa tus nqi thiab tus nqi tiag tiag tuaj yeem raug tshem tawm los ntawm kev kho qhov ceev ntawm lub tsheb laij teb; 2) Lub 'meter' hnyav tswj hom ntawm extruder txhais tau hais tias qhov ntsuas qhov hnyav ntawm cov khoom tuaj yeem teem ua ntej. Hauv hom tsis siv neeg, qhov sib txawv ntawm qhov teeb tsa tus nqi thiab tus nqi tiag tiag tuaj yeem raug tshem tawm los ntawm kev kho qhov ceev ntawm extruder ntsia hlau. Yog hais tias lub extruder yog noj los ntawm ib tug metering ntaus ntawv, lub ntsia hlau ceev ntawm lub metering feeding ntaus ntawv yuav raug kho . 3) Extruder meter hnyav tswj thiab traction extruder synchronous meter hnyav tswj txhais tau hais tias cov zis ntawm cov khoom tuaj yeem ua ntej - teeb, thiab tuaj yeem hloov kho raws li qhov chaw ua haujlwm tshiab, tus maub los synchronous ceev ntawm cov khoom lag luam, thiab cov khoom siv ceev ceev tuaj yeem hloov kho. ' meter ' qhov hnyav yog tas li. Nws yog tsuas yog siv nyob rau hauv cov txheej txheem ntawm cov khoom siv rov ua dua tshiab.
Raws li kev siv lub ntim ntsuas nws muaj:
1. Kev ntsuas qhov tseeb yuav tsum tau kho nyob ntawm lub sijhawm; 2. Kev teeb tsa cov ntaub ntawv khoom siv yuav tsum ua los ntawm cov neeg ua haujlwm tshaj lij; 3. Cov qauv thiab ua cov ntaub ntawv yuav tsum tau hloov dua siab tshiab thiab kho; 4. Lub uniformity ntawm lub ntim thiab ntom ntawm cov khoom raw khoom yuav tsum siab. Yog li ntawd, nws tsis tshua muaj siv nyob rau hauv cov txheej txheem ntawm yas extrusion.
Vim yog siv txoj kev gravimetric, nws muaj qhov zoo hauv qab no:
1. ruaj khov thiab raug tswj; 2, tuaj yeem siv ntau yam khoom sib txawv; 3, tsis siv neeg calibration muaj nuj nqi; 4, kev teeb tsa yooj yim - tsuas yog lub sijhawm luv luv; 5. Ntsuas los ntawm qhov hnyav - tsis yog los ntawm ntim; 6, tshem tawm kev ua haujlwm tsis zoo; 7. Ceev ROI. Txoj kev ntsuas qhov hnyav yog qhov tsim nyog rau kev tsim khoom extrusion nrog cov txiaj ntsig siab thiab muab kev pabcuam rau ntau lub tshuab sib xyaw siv hauv ntau- txheej co- khoom siv extrusion. Txoj kev ntsuas qhov hnyav yog tsim rau tag nrho cov khoom siv raw nrog qhov ntsuas qhov hnyav muaj: 1, qhov raug siab heev; 2. Tsis siv neeg kho; 3, ncaj qha teeb tsa qhov feem pua ntawm txhua qhov khoom; 4, teem ncaj nraim nrog lub log log; 5, kev ua haujlwm ntawm lub tshuab yog yooj yim.
Ob peb yam khoom siv hnyav tau piav qhia
