Extruder Mechanical Principple

Ib leeg ntsia hlau extruder txoj cai
Ib qho ntsia hlau feem ntau muab faib ua peb ntu raws li qhov ua tau zoo ntev. Qhov ntev ntawm peb ntu yog txiav txim siab raws li cov ntsia hlau txoj kab uas hla, lub suab thiab ntsia hlau qhov tob. Feem ntau, txhua ntu tau muab faib ua ib feem peb.
Cov xov kawg ntawm cov khoom siv chaw nres nkoj hu ua seem conveying: cov khoom tsis tas yuav tsum tau plasticized ntawm no, tab sis nws yuav tsum tau preheated, nias thiab nyem. Yav dhau los, txoj kev xav extrusion qub ntseeg tias cov khoom ntawm no yog lub cev xoob. Tom qab ntawd, nws tau ua pov thawj tias kev txav ntawm cov khoom ntawm no Nws zoo ib yam li cov khoom piston, tsuav yog nws ua tiav cov haujlwm thauj khoom, nws yog nws txoj haujlwm.
Qhov thib ob yog hu ua ntu compression. Lub sijhawm no, qhov ntim ntawm cov ntsia hlau zawj maj mam txo qis los ntawm qhov loj mus rau me me, thiab qhov kub nce mus txog qib plasticization ntawm cov khoom. Compression yog generated ntawm no los ntawm peb seem conveyor, thiab yog compressed rau ib qho ntawm no. Qhov no yog hu ua compression ratio ntawm cov ntsia hlau - 3﹕1, qee lub cav kuj muaj kev hloov pauv, thiab cov khoom siv yas nkag mus rau theem thib peb.
Qhov thib peb yog seem metering, qhov twg cov khoom tuav lub plasticizing kub, tab sis cov khoom yaj yog raug thiab quantitatively thauj zoo li lub metering twj tso kua mis muab lub taub hau tshuab. Lub sijhawm no, qhov kub tsis tuaj yeem qis dua qhov kub ntawm plasticizing, feem ntau yog siab dua me ntsis.