Iphrofayili yokukhishwa kwe-PE

Amaphrofayli we- HONYPRO ® polyethylenee pe ama-thermoplastics ajwayelekile, angenawo amakha, angenambisi, angenakuhlungu, abuhlungu. Ama-pelins abunjiwe akhishwa futhi afakwe ama-waxy pellets abukeka emhlophe e-milky. Isisindo sayo samangqamuzana sisebangeni lakwa-10,000 kuya ku-100,000.

Labo abanesisindo samangqamuzana abangaphezu kuka-100,000 bangama-polyethylene aphezulu we-molecular. Isisindo se-molecular, i-engcono izakhiwo zayo ezingokomzimba nezemishini, kanye nokusondela kufinyelela ezingeni elidingekayo lezinto zokwakha zobunjiniyela. Kodwa-ke, kukhuphuka isisindo samangqamuzana, kunzima kakhulu ukucubungula. Iphuzu lokuncibilika le-polyethylene lingu-100-130C, futhi ukumelana kwalo okuphansi okuphansi kuhamba kahle. Kusakwazi ukugcina izakhiwo ezinhle zemishini ku- -60 ° C, kepha izinga lokushisa elisetshenzisiwe lingu-80 ~ 110 ° C.

Ngaphansi kwesenzo somkhathi, ukukhanya kwelanga nomoya-mpilo, i-polyethylene izokhula, i-discolor, ukuqhekeka, iba brittle noma idili, bese ulahlekelwe yimishini yayo yemishini.

Emazingeni okushisa okubuyisa, ngenxa ye-oxidation, ukuncibilika ukuncipha kuzokwehla, kuzovela ukuguquguquka kanye nemithambo ye-streaks, ngakho-ke kufanele kukhokhwe ekusebenzeni kokubumba nokusebenzisa inqubo noma ngezinto ezibonakalayo. Ngoba i-polyethylene inezici ezingenhla futhi kulula ukuyicubungula kanye nokwakheka, ukuvumelanisa kwe-polyethylene kunenani elikude kakhulu.

Izimo eziphambili zokubumba zamaphrofayili we-PE

Ukushisa kwesilinda: izinga lokushisa lomgqomo lihlobene kakhulu nobuningi be-PE kanye nenani lokugeleza. Kuhlobene futhi nohlobo nokwenziwa komshini wokubumba umjovo kanye nokwakheka kwengxenye yepulasitiki eyinhloko.

Njengoba i-PE iyi-polymer ye-crystalline, okusanhlamvu kwekristalu kuthatha inani elithile lokushisa ngesikhathi sokuncibilika, ngakho-ke izinga lokushisa lomgqomo kufanele libe ngama-degree aphezulu. Nge-LDPE, izinga lokushisa le-barrel lilawulwa ku-140-200 ° C, futhi izinga lokushisa le-HDPE lilawulwa ku-220 ° C, inani eliphansi lithathwa ngemuva komgqomo, futhi inani eliphakeme lithathwa ekugcineni .

Izinga lokushisa le-Main: Izinga lokushisa le-Main linethonya elikhulu esimweni se-crystallization sezingxenye zepulasitiki. Izinga lokushisa eliphakeme eliphakeme liholela ku-high mell crystallity namandla aphezulu, kepha isilinganiso se-shrinkage sizokhula futhi. Usually, the mold temperature of LDPE is controlled at 30°C to 45°C, while the temperature of HDPE is correspondingly higher by 10°C to 20°C.

Ingcindezi yokubumba: ukukhuphula ingcindezi yomjovo kunenzuzo ekugcwalisweni kwezinto ezincibilikisiwe. Njengoba i-PE ine-fluidity enhle, ngaphandle kwemikhiqizo emincane eyenziwe ngodonga nethambile, ingcindezi yomjovo ephansi kufanele ikhethwe ngokucophelela. Ingcindezi yomjovo ejwayelekile ingu-50-100MPA. Isimo silula. Ezingxenyeni ezinkulu zepulasitiki ngemuva kodonga, ingcindezi yomjovo ingaba ngaphansi, futhi okuphambene nalokho.

Ukomisa: Akukhomiswa okudingekayo uma kugcinwa kahle.
Ukushisa okuncibilikayo: 220 ~ 260C. Ukuze uthole izinto ezinama-molekyuli amakhulu, uhla lokushisa olunconyiwe luphakathi kwama-200 no-250c.
Ukushisa kwesilisa: 50 ~ 95c. Izingxenye zepulasitiki ezinesigqila sodonga esingaphansi kwe-6mm kufanele zisebenzise izinga lokushisa elikhulisa eliphakeme, kanye nezingxenye zepulasitiki ezinesigqila sodonga ngenhla kwe-6mm kufanele zisebenzise izinga lokushisa elikhulisa eliphansi.
Izinga lokushisa elipholile lezingxenye ezihleliwe ze-PE kufanele lifane ukunciphisa umehluko eShrikage. Ngezikhathi ezinhle zomjikelezo wemishini, ububanzi besiteshi bupholile kufanele bube ngaphansi kwama-8mm futhi kufanele babe ngaphakathi kwe-1.3D yendawo yokubumba (lapho 'D' iyisiteshi esipholile).

I-Polyethylene (PE) ibiza kakhulu, iguquguqukayo, futhi ngokuvamile kulula ukuyicubungula, okwenza kube ngenye yezindawo ezithandwa kakhulu ze-thermoplastic ezisetshenziswayo namuhla. Njenge-extuder ephambili yepulasitiki yepulasitiki, amapulasitiki e-hony asebenza ngezihlanganisi ezijwayelekile ze-polyethylene kufaka phakathi i-HDPE, MDPE neLDPE. Senza amaphrofayili ahlukahlukene ahlukahlukene we-polyethylene akhishwe kufaka ama-tubing, iziteshi, ukufakwa kwezingxenye nezinye izingxenye zangokwezifiso.