1. Raw Material Preparation and Mixing
Cov khoom xyaw: Raws li qhov yuav tsum tau ua ntawm cov yeeb nkab, ntsuas cov khoom siv (PVC, PE, thiab lwm yam) thiab cov khoom siv ntxiv xws li stabilizers, lubricants, thiab xim masterbatches raws li cov qauv.
Kev sib xyaw: Siv lub tshuab ua kom siab - sib tov kom huv si kom huv si cov ntaub ntawv raw los ua kom qhuav. Rau cov dej- cov khoom nqus dej xws li PE thiab PPR, kuj tseem yuav tsum tau ziab (kom tswj cov dej noo hauv qab 0.02%) los tiv thaiv kev tsim cov npuas hauv cov yeeb nkab.
2. Extrusion thiab Plasticization
Khoom siv: PVC kav feem ntau yog tsim los siv conical ntxaib - ntsia hlau extruders (tsim rau kev pub mis hmoov); PE / PPR kav feem ntau yog tsim los siv ib zaug xwb - ntsia hlau extruders (tsim rau pellets).
Cua sov thiab Melting: Lub thoob yog rhuab kom yaj cov khoom raw. Kev ua haujlwm kub yog 160-190℃rau PVC thiab 180-220℃rau PE. Qhov kub thiab txias yuav tsum tau tswj tsis pub dhau ± 2℃kom ntseeg tau tias cov yas zoo ib yam.
3. Moulding
Molten yas yog pub rau hauv extrusion tuag. Cov kauv ntws channel tsim nyob rau hauv qhov tuag kom ntseeg tau tias txawm faib cov yaj, lav zoo ib yam phab ntsa tuab thoob plaws hauv cov yeeb nkab, thiab thaum kawg shaping lub yaj mus rau hauv ib qho txuas txuas txuas txuas txuas.
4. Txias thiab qhov loj me
Nqus sizing: Cov yeeb nkab dawb paug dhau los ntawm lub tes tsho loj nrog cov grooves sab hauv thiab lub tshuab nqus tsev sab nraud. Nyob rau hauv qhov tsis zoo siab (kwv yees li -0.08 txog -0.1 MPa), sab nrauv phab ntsa ntawm cov yeeb nkab yog kos tawm tsam sab hauv phab ntsa ntawm lub tes tsho sizing, precisely tswj lub sab kab thiab roundness.
Txias thiab Curing: Cov yeeb nkab hla dhau los ntawm lub tshuab nqus tsev vacuum teeb tsa chamber thiab lub tank dej txias, qhov chaw uas nws txias rau chav sov nrog dej txias, ua kom tawv thiab ruaj khov.
5. Hauling, Marking, thiab txiav
Hauling: Ib tug taug qab hauler rub cov yeeb nkab tawm ntawm qhov ceev tsis tu ncua synchronized nrog lub extruder qhov kev sib hloov ceev (nrog rau qhov yuam kev ntawm<0.1%), ensuring uniform wall thickness.
Kev Kos Npe: Cov tshuaj tsuag coder lossis lub tshuab luam ntawv yog siv los luam tawm cov ntaub ntawv xws li cov lus qhia tshwj xeeb, cov qauv, thiab cov npe khoom rau ntawm cov yeeb nkab.
Txiav: Nyob ntawm cov yeeb nkab txoj kab uas hla, tsau - ntev txiav yog tsim los ntawm lub ntiaj teb cutter (rau cov kav dej loj) los yog ib lub voj saw cutter (rau cov kav me thiab nruab nrab).
6. stacking, coiling, thiab ntim
Cov kav me me - txoj kab uas hla (feem ntau Tsawg dua lossis sib npaug li 160 mm): Cov kav dej no muaj qee qhov kev hloov pauv tau yooj yim thiab tau coiled rau hauv cov pob khoom siv dual - chaw nres tsheb coiler.
Loj - txoj kab uas hla nruj: Cov no yog cov khoom sib dhos zoo zoo siv lub tshuab tig los yog cov khib nyiab tsis siv neeg.
Kev tshuaj xyuas thiab ntim khoom: Cov khoom tiav tau raug soj ntsuam zaum kawg rau qhov zoo li, qhov ntev, thiab lwm yam; cov uas hla tau ntim thiab khaws cia rau hauv lub tsev rau khoom.