Incazelo eningiliziwe yomsebenzi, umthamo, kanye nomgomo womlawuli we-PVC foaming

一、Indima yomlawuli we-PVC foaming
Enqubweni yokukhiqiza imikhiqizo ye-foam ye-PVC, umlawuli we-foam we-PVC udlala indima ebalulekile. Imisebenzi yakhe eyinhloko ibonakala kulezi zici ezilandelayo:
1. Thuthukisa amandla okuncibilika: Ama-PVC foam modifier angathuthukisa kakhulu amandla okuncibilika kwePVC, okwenza kube ngcono kakhulu ekuhlanganiseni amagesi nokuvimbela ukuphuma kwegesi nokuwa kweseli. Lo msebenzi ubalulekile ekugcineni ukuqina kwesimo seseli ngesikhathi senqubo yokuncibilika, okusiza ukuthola isakhiwo sokuncibilika esifana kakhulu.
2. Lungiselela isakhiwo seseli: Ngokulungisa i-viscoelasticity ye-PVC melt and foaming regulator, qiniseka ukuthi amaseli agcina isimo esizinzile ngesikhathi senqubo yokukhula, ugweme ukuqhekeka ngenxa yokucindezelwa kweseli eliseduze noma amandla anele okuncibilika. Isakhiwo seseli esilungiselelwe senza ukusatshalaliswa kokucindezeleka kwangaphakathi kwebhodi le-foam kufane kakhulu uma kuqhathaniswa nezici zangaphandle, ngaleyo ndlela kuthuthukiswe ukuzinza kobukhulu.
3. Khuthaza inqubo yokwenza ipulasitiki: Abalawuli be-foam bangakhuthaza ukwenza ipulasitiki ye-resin ye-PVC, benze ukwenza ipulasitiki ye-PVC ifane kakhulu, ngaleyo ndlela kuthuthukiswe ukukhazimula kobuso kanye nekhwalithi yomkhiqizo womkhiqizo.
Isilinganiso kanye nezici ezithonyayo zomlawuli we-PVC foaming
Umthamo womlawuli we-PVC foaming uyahlukahluka kuye ngemikhiqizo yabakhiqizi abahlukene, imishini esetshenzisiwe, izimo zenqubo, kanye nezidingo ezithile zomkhiqizo. Ngokuvamile, umthamo wayo uphakathi kuka-1% no-5%. Lolu hlu lusekelwe kokuhlangenwe nakho kwangempela kokukhiqiza kanye nenani elikhulu ledatha yokuhlola, futhi lungasetshenziswa njengereferensi.
Kodwa-ke, kubalulekile ukuqaphela ukuthi inani lomlawuli we-foam osetshenziswayo alingcono ngempela. Umlawuli we-foam owedlulele ungaholela ekuqhumeni kwe-foam okweqile, okuholela enanini elingalawulwa kanye nosayizi we-pores, ngaleyo ndlela kuthinte ikhwalithi yomkhiqizo. Ngokuphambene nalokho, umthamo onganele ungaholela ekuqhumeni kwe-foam okunganele, ukwanda kwenani lamaphutha, futhi kunciphise nekhwalithi yomkhiqizo.
Ngakho-ke, lapho kunqunywa umthamo womlawuli we-PVC foaming, izici eziningi ezifana nemigomo yomkhiqizo, amakhono emishini, kanye nezimo zenqubo kufanele zicatshangelwe ngokuphelele ukuze kutholakale iphuzu lokulinganisela elifanele.
Ngaphezu kwalokho, isimiso sokusebenza somlawuli we-PVC foaming
Isilawuli se-PVC foaming empeleni siyisisetshenziswa sokucubungula i-acrylic, esinesisindo sama-molecule esiphezulu kakhulu kunesezinsiza zokucubungula ezijwayelekile. Ngesikhathi sokucubungula, amaketanga amade ama-molecule esilawuli se-foaming azogoqa futhi anamathele kumaketanga ama-molecule e-PVC, akhe isakhiwo esithile senethiwekhi. Lesi sakhiwo asigcini nje ngokuthuthukisa amandla okuncibilika kwe-PVC, kodwa futhi sithuthukisa izakhiwo zomzimba ezifana nokuqina nokwelulwa kokuncibilika, ngaleyo ndlela kube lula ukufakwa kwama-bubbles futhi kuvimbele ukuhlangana kwawo noma ukuqhekeka.
Ngaphezu kwalokho, abalawuli be-foam bangalawula nokugeleza kwamaketanga e-PVC molecular, banciphise ukungqubuzana phakathi kwamaketanga e-molecule, futhi benze i-resin ye-PVC igeleze kangcono ngesikhathi sokucubungula. Lokhu kusiza ukuthola imikhiqizo ye-foam ebukeka kahle.
Ngamafuphi, abalawuli be-foam be-PVC badlala indima engenakuphikwa ekukhiqizweni kwemikhiqizo ye-foam ye-PVC ngokusebenzisa isimiso sabo esiyingqayizivele sokusebenza. Akugcini nje ngokuthuthukisa ikhwalithi nokusebenza kwemikhiqizo, kodwa futhi kuthuthukisa izinqubo zokukhiqiza futhi kwandise ukusebenza kahle kokukhiqiza. Ngakho-ke, kubalulekile ukukhetha i-ejenti efanele yokukhipha igwebu enqubweni yokukhiqiza yemikhiqizo ye-foam ye-PVC.