Izindaba

Amafilimu e-LDPE ngokuvamile enziwa ngezinqubo zokubumba nokubumba. Ifilimu ye-polyethylene ehlanganisiwe inobukhulu obufanayo, kodwa ayisetshenziswa kakhulu ngenxa yentengo yayo ephezulu. Ifilimu ye-polyethylene efakwe i-blown yenziwe ngama-pellet e-PE esezingeni eliphakathi afakwe i-blown ngemishini yokubumba, okuyiyona esetshenziswa kakhulu ngenxa yezindleko zayo eziphansi.

Ifilimu ye-polyethylene ephansi iwukuthungwa okucacile, okucwebezelayo, okuthambile kwefilimu, okunokuqina kwamakhemikhali okuhle kakhulu, ukuvalwa kokushisa, ukumelana namanzi kanye nokumelana nomswakama, ukumelana nokubanda, okungabiliswa. Inkinga yayo eyinhloko isithiyo esibi se-oxygen, esivame ukusetshenziswa ezintweni zokupakisha eziguquguqukayo ezihlanganisiwe, ungqimba lwangaphakathi lwefilimu, kodwa futhi okwamanje isetshenziswa kakhulu, inani elikhulu kakhulu lefilimu yokupakisha yepulasitiki, ebangela ngaphezu kwama-40% okusetshenziswa kwefilimu yokupakisha yepulasitiki.

Njengoba i-molecule ye-polyethylene ingenawo amaqembu e-polar futhi inezinga eliphezulu le-crystallinity kanye namandla aphansi angenawo umphezulu, ifilimu inezakhiwo zokunyathelisa ezimbi kanye nokunamathela okubi kuma-inki nama-adhesive, ngakho-ke ukwelashwa komphezulu kuyadingeka ngaphambi kokunyathelisa nokunamathisela.

Okulandelayo ukwehluleka okuvamile kanye nezixazululo zefilimu eqhunyiswe yi-LDPE:

Ifilimu inamathela kakhulu, ayivuleki kahle

Ukuhlaziywa kwembangela:

1. Izinto zokusetshenziswa ze-resin azilona uhlobo olufanele, azilona uhlobo lwe-resin ye-LDPE yezinga lefilimu eliqhumile, elingenayo i-ejenti yokuvula noma i-ejenti yokuvula isezingeni eliphansi;

2. Izinga lokushisa le-resin encibilikisiwe liphezulu kakhulu, ukugeleza kwalo kukhulu kakhulu;

3. Isilinganiso sokuvunguza sikhulu kakhulu, okuholela ekuvulekeni kwefilimu okubi;

4. Ijubane lokupholisa lihamba kancane kakhulu, ifilimu ayipholi ngokwanele, futhi ukubopha okuhlangene kwenzeka ngaphansi kwesenzo sengcindezi ye-traction roller;

5. Ijubane lokubambelela lishesha kakhulu.

Izixazululo

① Buyisela i-resin eluhlaza, noma engeza inani elithile le-ejenti yokuvula ku-hopper;

② Nciphisa izinga lokushisa lokukhipha kanye nezinga lokushisa le-resin ngokufanele;

③ Nciphisa isilinganiso sokuvunguza ngokufanele;

④ Khulisa ivolumu yomoya ukuze uthuthukise umphumela wokupholisa futhi usheshise isivinini sokupholisa ifilimu;

⑤ Nciphisa isivinini sokuthutha ngokufanele.

Ukubonakala okungekuhle kwefilimu

Ukuhlaziywa kwembangela:

1. izinga lokushisa eliphansi lokukhipha, ukwenziwa kwe-resin plasticization okungekuhle, okuholela ekubonakaleni okungekuhle kwefilimu ngemva kokubumba nge-blow;

2. Isilinganiso sokuvunguza sincane kakhulu;

3. Umphumela omubi wokupholisa, ngaleyo ndlela kuthinta ukucaca kwefilimu;

4. Umswakama oqukethwe ku-resin eluhlaza mkhulu kakhulu;

5. Ijubane lokubambelela lishesha kakhulu futhi ifilimu ayipholi ngokwanele.

Isixazululo

① Khulisa izinga lokushisa le-extrusion ngokufanele, ukuze i-resin ikwazi ukwenziwa ipulasitiki ngokulinganayo;

② Khulisa isilinganiso sokuvunguza ngokufanele;

③Khulisa ivolumu yomoya ukuze uthuthukise umphumela wokupholisa;

③ Khulisa ivolumu yomoya ukuze uthuthukise umphumela wokupholisa;

④ Yomisa izinto ezingavuthiwe;

⑤ Nciphisa isivinini sokuthutha ngokufanele.

Imibimbi yefilimu

Ukuhlaziywa kwembangela

1. Ubukhulu befilimu obungalingani;

2. Umphumela wokupholisa onganele;

3. Isilinganiso sokuvunguza sikhulu kakhulu, okwenza ibhamuza lefilimu lingazinzile, lijike liye emuva naphambili lisuka kolunye uhlangothi liye kolunye, ngakho ifilimu ithambekele ekushwabaneni;

4. I-engeli ye-clamp ye-herringbone inkulu kakhulu, ibhamuza lefilimu liyisicaba ebangeni elifushane, ngakho-ke ifilimu nayo ithambekele ekushwabaneni;

5. Ingcindezi kuzo zombili izinhlangothi ze-traction roller ayiguquguquki, uhlangothi olulodwa luphakeme kanti olunye uhlangothi luphansi;

6. Izimbazo eziphakathi kwama-guide rollers azifani, okuthinta ukuzinza kanye nokuba yisicaba kwefilimu, ngaleyo ndlela kuba nokushwabana.

Isixazululo

① Lungisa ukujiya kwefilimu ukuqinisekisa ukujiya okufanayo;

② Thuthukisa umphumela wokupholisa ukuqinisekisa ukuthi ifilimu ingaphola ngokuphelele;

③ Nciphisa isilinganiso sokuvunguza ngokufanele;

③ Nciphisa isilinganiso sokuvunguza ngokufanele;

④ Nciphisa i-engeli yokubamba ye-clamp ye-herringbone ngokufanele;

⑤ Lungisa ingcindezi ye-traction roller ukuqinisekisa ukuthi ifilimu ingaphansi kwamandla afanayo;

⑥ Hlola i-axis yomgodi ngamunye oqondisayo bese uwenza ahambisane.

Ukusebenza kabi kokuvala ukushisa kwefilimu

Ukuhlaziywa kwembangela

1. Umugqa weqhwa uphansi kakhulu, ama-molecule e-polymer aqondiswa, okwenza ukusebenza kwefilimu kufane nokwefilimu eqondiswe kuyo, okuholela ekusebenzeni okuphansi kokuvala ukushisa;

2. Isilinganiso sokuvunguza kanye nesilinganiso sokudonswa sikhulu kakhulu, futhi ifilimu idlula ekuqondeni kokunwebeka, ngaleyo ndlela ithinta ukusebenza kokuvala ukushisa kwefilimu.

Isixazululo

① Lungisa usayizi womthamo womoya eringini yomoya ukuze wenze iphuzu lamazolo liphakame kancane, ngangokunokwenzeka, ngaphansi kwendawo yokuncibilika kokushaywa nokudonsa kwepulasitiki, ukuze kuncishiswe ama-molecule ngenxa yokushaywa nokudonsa okubangelwa ukuqondiswa kokwelula;

② Izilinganiso zokuvuthela nokudonswa kufanele zibe zincane ngokufanele. Uma isilinganiso sokuvuthela sikhulu kakhulu futhi isivinini sokudonswa sishesha kakhulu, ifilimu inwebeka kakhulu eziqondisweni eziphambeneyo nezinde, khona-ke ukusebenza kwefilimu kuvame ukunwebeka ngezindlela ezimbili, futhi izakhiwo zokuvala ukushisa kwefilimu zizoba zimbi.

Ifilimu inephunga elimnandi

Ukuhlaziywa kwembangela

1. Izinto zokusetshenziswa ze-resin ngokwazo zinephunga elimnandi;

2. Izinga lokushisa lokukhipha i-resin encibilikisiwe liphezulu kakhulu, okubangela ukuthi i-resin ibole, ngaleyo ndlela ikhiphe iphunga;

3. Ukupholisa okunganele kwebhamuza lefilimu, umoya oshisayo ngaphakathi kwebhamuza lefilimu awususwa.

Isixazululo

①Buyisela izinto zokusetshenziswa ze-resin;

② Lungisa izinga lokushisa lokukhipha;

③Thuthukisa ukusebenza kahle kokupholisa kwendandatho yomoya opholile, ukuze ibhamuza lefilimu liphole ngokwanele.

Umhlophe uwela phezu kwefilimu

Isizathu: Izithasiselo ikakhulukazi ezintweni zokusetshenziswa, ama-resin anesisindo esincane sama-molecule kanye nothuli, njll., okujiya emlonyeni ngesikhathi sokucubungula, futhi ngemva kokuqongelela inani elithile lisuswa ifilimu njalo, ngaleyo ndlela kwakhiwe ama-White precipitates efilimu.

Isixazululo

①Ngemva kwesikhathi esithile, khulisa isivinini sesikulufu, khulisa ingcindezi yokuncibilika, susa ama-precipitate.

② Hlanza njalo isikhunta somlomo.

③ Khulisa izinga lokushisa lokuncibilika ngendlela efanele ukuze kwenziwe ipulasitiki ngokuphelele;

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Izixazululo zefilimu ye-LDPE zokuthuthukisa ikhwalithi yomkhiqizo

I-SILIMER Series Non-Precipitation Film Slip Masterbatchuhlobo lwe-copolysiloxane eguquliwe equkethe amaqembu asebenzayo e-organic athuthukiswe yi-Silicone. Uchungechunge olude lwekhabhoni luhambisana ne-resin ukuze ludlale indima yokubambelela, kanti uchungechunge lwe-silicon luhlukaniswe phezulu kwefilimu ukuze ludlale indima yokushelela, okungadlala indima yokushelela ngaphandle kwemvula ephelele.

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