Ntoo yas composites (WPCs) yog ib hom tshiab ntawm cov khoom sib xyaw uas tau vam meej hauv tsev thiab txawv teb chaws nyob rau xyoo tas los no.Lawv xa mus rau cov phiaj los yog cov ntaub ntawv tsim los ntawm kev siv polyethylene, polypropylene thiab polyvinyl chloride es tsis txhob siv cov nplaum nplaum, thiab sib tov ntau tshaj 35% - 70% ntawm cov hmoov nplej, nplej husk, straw thiab lwm cov khib nyiab cog fibers rau hauv cov ntaub ntawv tshiab, thiab Tom qab ntawd los ntawm extrusion, molding, txhaj tshuaj molding thiab lwm yam txheej txheem yas.Nws yog tsuas yog siv nyob rau hauv lub tsev cov ntaub ntawv, rooj tog, logistics ntim thiab lwm yam lag luam.Yas thiab ntoo hmoov sib tov nyob rau hauv ib qho kev faib ua feem thiab ces tsim los ntawm kub extrusion, uas yog hu ua extruded ntoo yas composite phaj.
Screw configuration plays lub luag haujlwm tseem ceeb hauv cov txheej txheem extrusion ntawm ntoo yas composites.Cov qauv ntsia hlau tsim nyog tuaj yeem txo qhov kev sib txhuam ntawm cov ntsia hlau thiab ntoo fiber ntau, tsim kom raug shearing thiab dispersion sib xyaw, thiab ua rau cov khoom siv uas muaj cov hmoov ntoo loj zoo plasticized.
Pwm tsim thiab ua kom txias kawg
Ntxiv nrog rau kev ua kom muaj kev hloov pauv zoo thiab tsim nyog txaus faib ntawm tus qauv tsim, cov ntaub ntawv yas sib xyaw ntoo muaj cov kev xav tau siab dua rau kev tsim lub peev xwm thiab kev tswj qhov kub thiab txias.
Yuav kom tau txais cov kev taw qhia zoo fiber ntau thiab cov khoom lag luam zoo, nws yog ib qho tsim nyog los xyuas kom meej tias lub taub hau tuag muaj peev xwm txaus siab rau lub tsev thiab qhov ntev ntawm qhov loj me, thiab txawm siv ob chav taper qauv hauv seem compression thiab sizing seem.
Ntoo cov ntaub ntawv yas sib xyaw muaj cov thermal conductivity tsis zoo, thiab feem ntau ntawm nws cov khoom yog cov ntaub ntawv profiled, uas nyuaj rau txias thiab zoo li tus, yog li lawv feem ntau yog dej txias.Cov cua txias channel yuav tsum tau tsim tsim nyog los xyuas kom meej qhov txias txias.
