Uma kuqhathaniswa neminye imikhiqizo ye-plastic extruded, ukukhiqizwa kwe-SUZHOU SUPXTECH kwemikhiqizo yepulasitiki ye-PVC enegwebu eliphansi ayidingi nje kuphela i-plasticization enhle ngaphansi kwengcindezi ethile yokuncibilika, kodwa futhi inezidingo zobuchwepheshe ezihambisanayo zobukhulu, ubuningi kanye nokufana kwezimbobo zegwebu, kanye ukujiya, ubulukhuni, ukukhanya nokuqedwa kwesikhumba.Izinga lomzimba onamagwebu alihlobene kuphela nefomula nezinto zokusetshenziswa, kodwa futhi lithinteka ngokuqondile futhi livinjelwe ukusebenza kwe-shear ye-scruder screw, ingcindezi encibilikayo, izinga lokushisa, isivinini se-extrusion (traction), igebe lezindebe zesikhunta, igebe lesikhunta, ukupholisa. izinga lokushisa kwamanzi nezinye izici.Ngakho-ke, uma kuqhathaniswa neminye imikhiqizo yepulasitiki ekhishwe, imikhiqizo yepulasitiki yegwebu lesikhumba inobunzima obuthile bezobuchwepheshe, kusukela kumkhuba kanye nethiyori kunezinkinga eziningi ezingaxazululiwe ezifanele ochwepheshe bemboni ukuthi bafunde futhi bazixazulule.
1, igwebu lesikhumba PVC ubuchwepheshe bokukhiqiza ishidi lepulasitiki nezici
Ubunzima bezobuchwepheshe ekukhiqizeni imikhiqizo yepulasitiki ye-PVC enegwebu buyagwebu.Igwebu kuwumphumela wokwanda nokwanda kwe-viscosity encibilikayo, ingcindezi yegesi ekhiqizwa i-ejenti enegwebu kanye nomfutho womkhathi.
Inqubo yokukhipha amagwebu ngokuvamile ihamba ngezigaba ezintathu:
(1) Igesi enegwebu incibilika engxubeni ye-plasticized uniform ncibilika ezingeni lokushisa elithile kanye nokucindezela ku-extruder futhi ifinyelele esimweni sokugcwala ukuze yenze i-bubble core;
(2) Ukuncibilika kukhishwa ku-die, futhi ngokukhululwa kwengcindezi, i-supersaturated gas nucleates encibilike, iyanwebeka futhi ihlehle, yenze izimbobo zebhamuza ezifanayo neziminyene esikhaleni se-formwork;
(3) Ngaphansi komphumela wokupholisa wedivayisi yokubunjwa, imikhiqizo egwazayo iyaqina futhi ibunjwe.Ikhwalithi enhle kakhulu yemikhiqizo yepulasitiki ye-PVC ye-foam yesikhumba inezici zezimbobo ze-bubble eziningi neziminyene, ezincane nezifanayo, ukuminyana nokushuba zihlangabezana nezidingo, ukubukeka okubushelelezi, ubulukhuni obuphezulu nokukhanya.
2, isikhumba Foam PVC plastic ibhodi izinga izici
Izinto zokusetshenziswa eziyinhloko ezithinta ngqo ikhwalithi yesakhiwo sebhamuza lepulasitiki i-ejenti egwebuzelayo kanye ne-harmonizer egwebuzelayo.Izinto zokusetshenziswa ezifana ne-stabilizer, i-lubricant, i-calcium carbonate kanye nokulawulwa kwenqubo ye-extrusion kungakhuthaza futhi kuqondise ikhwalithi yokugwebu ngezinga elithile.Ngenxa yokuthi izinga lokushisa lepulasitiki lokuncibilika enqubweni yokukhipha amagwebu kufanele libe ngaphansi kancane kunezinga lokushisa lokubola le-ejenti egwetshwayo, lehla izinga eliphakathi le-polymerization ye-PVC resin, lehla izinga lokushisa lokucubungula elidingekayo ukuze kuncibilike ipulasitiki.Ukuthola imikhiqizo yepulasitiki enegwebu ngokuphelele, i-resin viscosity akufanele ibe phezulu kakhulu.Ngesikhathi esifanayo, uma kuqhathaniswa neminye imikhiqizo enegwebu, ngoba ingxenye yesiphambano sokwakheka kweshidi ibanzi, kusukela ekhanda le-extrusion lingene emlonyeni lizosatshalaliswa libe ububanzi obuyi-1.3m, ukuze kube lula ukuhlakazwa nokwanda kwamabhamuza. , ukucindezela kwayo yonke ingxenye yeshidi kufanele kuhlanganiswe, uketshezi lokuncibilika kuphezulu, futhi isisindo samangqamuzana e-resin ngokuvamile sincane.Okufana ne-SC-7 noma i-SC-8 indlela yokumiswa i-resin loose ifaneleka kakhulu.I-SUZHOU SUPXTECH
Isikhathi sokuthumela: Dec-07-2022