Daim ntawv thov ntawm Barrels thiab Screws
Lub thoob thiab cov ntsia hlau sib dhos yog qhov tseem ceeb ntawm cov khoom siv yas (xws li kev txhaj tshuaj molding tshuab thiab extruders). Nws lub luag haujlwm tseem ceeb yog xa, sib cog lus, yaj, sib tov, thiab nias cov ntaub ntawv yas raw khoom, yog li ncaj qha txiav txim siab plasticization zoo thiab kev ua haujlwm ntawm cov khoom kawg.
Core Functions thiab Cov Cai Ua Haujlwm
Lub thoob thiab ntsia hlau ua haujlwm nyob rau hauv tandem; cov ntsia hlau tig nyob rau hauv lub thoob, hloov cov khoom yas rau hauv lub xeev molten los ntawm kev sib xyaw ua ke ntawm kev sib txhuam hluav taws xob thiab cov cua sov sab nraud.
Conveying thiab Compacting: Kev sib hloov ntawm cov ntsia hlau propels yas rau pem hauv ntej los ntawm lub hopper, maj mam compacting nws thaum lub sij hawm tus txheej txheem.
Melting thiab Mixing: Los ntawm kev siv cov shear thiab compressive zog tsim los ntawm kev hloov ntim ntawm cov ntsia hlau channels - nrog rau cov cua sov sab nraud siv rau lub thoob - cov yas yog uniformly yaj thiab tov.
Metering thiab Pressurizing: Ntu metering kom ruaj khov ntawm cov yaj qhov kub thiab txias, thaum kawg xa cov khoom ntawm cov yas molten rau hauv pwm (rau kev txhaj tshuaj molding) lossis los ntawm kev tuag (rau extrusion molding).
Thawj daim ntawv thov teb
Lub thoob thiab cov ntsia hlau sib dhos tau dav siv thoob plaws ntau hom yas molding khoom, nrog rau hauv qee qhov chaw ntawm kev lag luam khoom noj khoom haus:
Txhaj Moulding: Siv rau kev tsim khoom ntawm ntau yam khoom yas, nrog rau cov khoom siv niaj hnub, cov khoom siv tsheb, cov khoom siv hluav taws xob, thiab lwm yam. Cov ntsia hlau tsim yuav tsum tau hloov kho kom haum rau cov yam ntxwv tshwj xeeb ntawm cov yas sib txawv (xws li, maj mam hloov cov ntsia hlau rau PVC, lossis cov ntsia hlau hloov pauv sai rau polyolefins).
Extrusion Moulding: Siv rau kev tsim cov yas profiles, kav dej, nplooj ntawv, thiab zaj duab xis. Lub thoob thiab cov ntsia hlau sib dhos ua kom cov khoom siv txuas ntxiv thiab tsis sib xws ntawm cov khoom siv raw.
Kev Ua Khoom Noj: Ntxaib- cov ntsia hlau ntsia hlau feem ntau ua haujlwm hauv kev tsim cov khoom noj txom ncauj, cov zaub mov tsiaj, thiab cov khoom noj hauv dej, siv qhov kub thiab txias siab rau gelatinize thiab nthuav cov ntaub ntawv raw.
