1. Kev Tswj Xyuas Qhov Chaw: Ua kom cov khoom zoo raw khoom thiab kev pub mis
Strict Raw Material Pretreatment: Tom qab sib tov, PVC resin hmoov thiab lwm yam additives yuav muaj impurities. Nws raug nquahu kom nruab ib lub vijtsam zoo txaus ua ntej pub nkag mus rau lub cev cuam tshuam cov khoom loj. Yog tias cov khoom siv rov ua dua tshiab, xyuas kom nws huv si kom tsis txhob muaj impurities los ntawm clogging lub taub hau tuag.
Kev noj zaub mov ruaj khov: PVC hmoov muaj cov dej tsis zoo thiab ua rau "txhim kho" hauv lub hopper, ua rau muaj kev cuam tshuam rau kev noj mov. Kev tiv thaiv - cov khoom siv txuas los yog cov cuab yeej siv nrog cov tshuab pub mis yuam kev tuaj yeem siv los xyuas kom meej cov khoom ntws zoo. Tsis tas li ntawd, qhov kev pub mis yuav tsum tau sib npaug rau qhov ceev ntawm extrusion. Kev pub noj ceev heev tuaj yeem ua rau cov khoom ntim hauv lub thoob, thiab cov khoom siv tsis muaj yas uas tsis tuaj yeem tawm hauv lub sijhawm yuav ua rau muaj kev cuam tshuam.
2. Melt Conveyance: Optimizing chim thiab ntsia hlau tswj
Nyob rau hauv lub thoob, qhov kub tsis zoo kuj tuaj yeem ua rau muaj kev thaiv. Piv txwv li, yog tias qhov kub thiab txias nyob rau hauv qab ntawm lub thoob yog siab dhau lawm, PVC yuav yaj ntxov ntxov ua ntej mus txog lub qhov cua, ua rau cov khoom ntim cov ntsia hlau grooves thiab thaiv cov qhov cua. Koj yuav tsum xyuas kom meej, raws li tus qauv ntsia hlau, tias cov khoom yog tag nrho melted thaum nws ncav cuag lub qhov cua. Cov tswv yim daws teeb meem yog sim ua kom qhov kub thiab txias hauv Zones 2 thiab 3 ntawm lub thoob los ntawm 5-10 degree, los yog txo qhov kub hauv cheeb tsam 1 los ntawm 10-20 degree, kom sib npaug lub peev xwm thauj khoom ntawm sab pem hauv ntej thiab nram qab.
3. Cov pa paug tawm: Tiv thaiv cov khoom spillage thiab blockages ntawm lub tshuab nqus tsev qhov hluav taws xob
Lub tshuab nqus tsev qhov hluav taws xob yog lwm qhov chaw uas ua rau muaj kev cuam tshuam. Cov khoom "spills" tawm ntawm qhov hluav taws xob thiab txhaws cov kav dej, feem ntau yog vim li cas hauv qab no:
Screw Configuration Issues: mismatched conveying capacities nruab nrab ntawm thawj - thiab thib ob -stage screws ua rau cov khoom noj tsis txaus rau theem thib ob, ua rau cov khoom ntws rov qab rau hauv qhov hluav taws xob.
Cov txheej txheem tsis tsim nyog: xws li kev tuag ntau dhau los yog cov ntxaij lim dej zoo heev.
Tsim qhov tsis zoo hauv qhov chaw nres nkoj: Qhov qhib qhov tsis zoo lossis qhov mob - xeeb tub tuaj yeem ua rau yaj mus rau qhov ntawd.
4. Die Setting: Xyuas kom tsis muaj kev cuam tshuam ntawm lub taub hau tuag thiab lub tes tsho loj
Blockages nyob rau hauv qhov tuag thiab sizing lub tes tsho ncaj qha cuam tshuam rau txoj kev zoo ntawm cov yeeb nkab.
Tuag Lub Taub Hau thiab Filter Screen: Cov ntxaij lim dej (screen changer) hauv lub taub hau tuag yog ib qho tseem ceeb pom cov khoom uas ua rau txhaws los ntawm impurities los yog decomposed cov ntaub ntawv. Kev tshuaj xyuas tsis tu ncua thiab ntxuav cov tawv nqaij - mus rau - mus txog thaj chaw hauv lub taub hau tuag yog qhov tsim nyog, vim tias cov chaw no muaj cov khoom siv decomposed, tsim cov sludge uas tuaj yeem thaiv cov dej ntws. Tsis tas li ntawd, tswj kom ruaj khov siab ua ntej thiab tom qab lub vijtsam lim; ib tug sudden siab spike feem ntau yog ib tug kos npe rau ntawm clogging.
Sizing Lub Tes Tsho: Qhov no yog qhov tseem ceeb rau shaping thiab txias thiab tseem yog heev nquag mus clogging. Cov laj thawj tseem ceeb suav nrog:
Scale thiab Impurities: Lub tshuab nqus tsev me me ntawm lub tes tsho loj (feem ntau 1-2 mm inch) tau yooj yim thaiv los ntawm nplai lossis impurities, uas ua rau lub tshuab nqus tsev tsis sib xws.
Kev sib sau ntawm Precipitates: Tsawg-molecular- cov khoom hnyav hauv PVC formulation tuaj yeem ua kom nag thiab sib sau hauv cov grooves ntawm phab ntsa sab hauv ntawm lub tes tsho sizing, cuam tshuam rau qhov kawg ntawm cov yeeb nkab.
Cov cua txias tsis sib xws: Thaiv cov cua txias tuaj yeem ua rau muaj cua sov hauv cheeb tsam, ua rau cov khoom lo rau hauv lub tes tsho loj.
Nyob rau hauv cov ntsiab lus, tus yuam sij rau kev tiv thaiv blockages nyob rau hauv PVC yeeb nkab ntau lawm nyob rau hauv: zoo raw khoom pretreatment, ruaj khov noj, meej kub tswj, unobstructed nqus tsev vacuum, huv si dej txias, unobstructed sizing lub tes tsho, thiab tsis tu ncua, huv si.