Reba: 0 Umwanditsi: Muhinduzi wurubuga Gutangaza Igihe: 2025-12-09 Inkomoko: Urubuga
Kuva ku biryo turya kugeza ku bicuruzwa twohereza, firime ya pulasitike ni kimwe mu bigize ubuzima bwa none. Ituma salade yacu igashya, ikarinda ibikoresho bya elegitoroniki, kandi igahuza ibicuruzwa byacu kugirango bitwarwe neza. Ariko wigeze wibaza uburyo ibi bikoresho bitandukanye bikozwe? Bumwe mu buryo busanzwe kandi bunoze ni inzira yitwa firime ya extrusion.
Aka gatabo kazakunyura mubintu byose ukeneye kumenya kubijyanye no gukuramo film. Tuzareba icyo aricyo, uburyo inzira ikora kuva itangiye kugeza irangiye, niki gitandukanya nubundi buhanga bwo gukora film. Uzasobanukirwa neza impamvu ubu buryo ari ingenzi mu gukora ama firime menshi yo mu rwego rwo hejuru dukoresha buri munsi.
Gukuramo firime ni uburyo bwo gukora bukoreshwa mugukora firime nziza ya plastike nziza kandi isobanutse neza, ubunini buhoraho, hamwe nubuso bworoshye. Tekinike ikubiyemo gushonga polimeri ya polimoplastique no kuyisohora mu rupfu rumanutse kuri roller ikonje, izunguruka. Uku gukonjesha byihuse, cyangwa 'kuzimya, ' gushimangira plastiki yashongeshejwe mumpapuro ikomeza, hanyuma igacibwa hanyuma igakomeretsa.
Ubu buryo buhabwa agaciro cyane kubushobozi bwabwo bwo gukora firime zifite imiterere ihanitse ya optique hamwe no kugenzura neza. Amafirime yavuyemo akoreshwa muburyo butandukanye bwa porogaramu, kuva gupakira byoroshye no gupfunyika ibicuruzwa kugeza ku bicuruzwa by’isuku ku giti cye ndetse nikirahure cyumutekano. Uwiteka imashini ikuramo firime nigice cyibanze cyibikoresho bituma iyi nzira yose ishoboka, ikora ibintu byose kuva gushonga ibisigazwa kugeza ibicuruzwa byanyuma.
Mugihe igitekerezo cyoroshye, inzira nyayo ikubiyemo ibyiciro byinshi. Buri ntambwe ningirakamaro kugirango film yanyuma yujuje ubuziranenge bwihariye. Dore uburyo imashini isanzwe yo gukuramo firime ihindura pellette mbisi mubicuruzwa byuzuye.
Inzira itangirana na polymeroplastique polymer, mubisanzwe muburyo bwa pellet nto cyangwa granules. Ibikoresho bisanzwe birimo polyethylene (PE), polypropilene (PP), polyethylene terephthalate (PET), na nylon. Iyi pellet igaburirwa kuva hopper nini muri barri ya extruder. Inyongeramusaruro nkamabara, UV stabilisateur, cyangwa anti-slip agent nayo irashobora kuvangwa muriki cyiciro kugirango itange firime ibintu byihariye.
Imbere muri barriel yashyutswe, umugozi munini uzunguruka utanga pellet imbere. Ihuriro ryubushyuhe buturuka kumashanyarazi yo hanze ya barriel hamwe nubuvanganzo buterwa no kugenda kwa screw byashongesheje polymer resin mumazi atajegajega. Imashini yashizweho ubuhanga bwo kuvanga plastike yashongeshejwe neza, kugirango ubushyuhe bumwe kandi buhoraho. Iyi ntambwe ningirakamaro mu gukumira inenge muri firime yanyuma.
Mbere yuko plastiki yashongeshejwe igera ku rupfu, inyura muri paki ya ecran. Sisitemu yo kuyungurura ikuraho umwanda uwo ariwo wose, umwanda, cyangwa polymer zidashonga zishobora gutera intege nke, geles, cyangwa inenge ya optique muri firime. Gushonga, gushonga ni ngombwa mugukora ibicuruzwa byiza byujuje ubuziranenge.
Ibikurikira, muyungurura polymer yashizwemo agahato binyuze mumashanyarazi apfa, bizwi kandi nka T-gupfa. Igishushanyo cyimbere cyurupfu gikwirakwiza plastike yashongeshejwe neza mubugari bwayo, ikabigira umwenda muto, mugari wa polymer wamazi. Ubusobanuro bwo gufungura bipfuye nibyingenzi mugucunga ubunini bwambere nuburinganire bwa firime.
Mugihe umwenda ushongeshejwe wa pulasitike usohoka mu rupfu, uhita ujugunywa hejuru yuruziga runini, rusize cyane, kandi rugenzurwa nubushyuhe ruzwi nka chill roll. Uru ruziga rukonjeshwa imbere, akenshi rufite amazi, kandi ubuso bwarwo bukonje buzimya vuba plastiki yashongeshejwe, ikomera muri firime ikomeye. Uku gukonjesha byihuse nicyo gitanga firime iranga ibintu bisobanutse neza kandi birabagirana, kuko ihagarika iminyururu ya polymer muburyo bwa amorphous, ikabuza gushiraho kristu nini, ikwirakwiza urumuri. Rimwe na rimwe, icyuma cyo mu kirere cyangwa agasanduku ka vacuum bikoreshwa mu gukanda firime irwanya ubukonje kugira ngo habeho guhuza hamwe no gukonja neza.
Iyo firime imaze gukomera kuri chill roll, inyura murukurikirane rwibizunguruka bya kabiri bigenzura impagarara nicyerekezo. Muri iki cyiciro, impande za firime, akenshi usanga ari ndende kandi zidahuye neza (zizwi nka 'amasaro yo ku nkombe '), zicibwa hakoreshejwe ibyuma bityaye. Uku gutondagura mubisanzwe byegeranijwe kandi bigasubirwamo muburyo bwo kugabanya imyanda.
Hanyuma, firime yarangiye, yatunganijwe irakomereka ku ikarito nini cyangwa intoki ya plastike, ikora umuzingo mukuru. Uyu muzingo urashobora kuba ufite metero nyinshi z'ubugari kandi ufite ibiro amajana. Iyi mizingo minini noneho yiteguye gucamo ibice bigufi kubisabwa byihariye cyangwa byoherejwe kubindi gutunganya, nko gucapa cyangwa kumurika.
Mugihe muganira kubijyanye no gukora firime, ubundi buryo busanzwe ni ugusohora firime. Mugihe inzira zombi zitanga firime ya plastike, babikora muburyo butandukanye, bikavamo ibintu bitandukanye nibisabwa.
Inzira: Gukuramo firime bikubiyemo gukuramo plastike unyuze mu rupfu rushyushye. Ku rundi ruhande, gukuramo firime byashyizwe ahagaragara, bihatira plastiki yashongeshejwe binyuze mu rupfu ruzenguruka hanyuma ikayihinduramo umubyimba munini wa firime ufite umwuka mwiza.
Igipimo cyo gukonjesha: Fata firime ikonjesha vuba cyane kuri chill roll, mugihe firime ya firime ikonja buhoro buhoro uko igituba kizamutse. Iri tandukaniro mugipimo cyo gukonjesha nimpamvu yambere yimiterere yabo itandukanye.
Kugaragara no Kurabagirana: Kuzimya byihuse muri gukina firime gukuramo biratanga ibisobanuro byiza kandi byuzuye. Filime ya firime isanzwe ni hazier kandi ntigaragara neza.
Kugenzura Ubunini: Gukuramo firime bitanga kugenzura hejuru yubunini bwa firime (gauge), bikavamo ibicuruzwa bimwe.
Imbaraga: Filime yerekana muri rusange ifite imiterere yubukanishi iringaniye, hamwe nimbaraga nziza zingana mubyerekezo byimashini (MD) no guhinduranya (TD). Filime ya firime ikunda kugira imbaraga zisumba icyerekezo cyimashini.
Umuvuduko Wumusaruro: Imirongo ya firime irashobora gukora kumuvuduko mwinshi cyane kuruta imirongo ya firime, biganisha kumusaruro mwinshi.
Kubera itandukaniro, firime ya firime ihitamo kubisabwa aho ubwiza bwa optique hamwe nuburinganire bwambere, nkibikoresho byo murwego rwohejuru hamwe na laminates. Filime ya firime ikoreshwa kenshi mubisabwa aho imbaraga zingana ningirakamaro, nkimifuka yimyanda hamwe nimpapuro zubaka.
Ibikorwa byo gukuramo firime ni ibuye rikomeza imfuruka yinganda zigezweho za plastiki, zifasha gukora firime zikora cyane zikenewe mubikorwa bitabarika. Mugutanga ibisobanuro bitagereranywa, uburabyo, nuburinganire bwuburinganire, byujuje ibyifuzo byinganda zisaba ubwiza bwubwiza nibikorwa byizewe.
Nkuko ikoranabuhanga rikomeje gutera imbere, niko n'ubushobozi bwa imashini ikuramo firime . Udushya muri siyanse ya polymer, gupfa gushushanya, no kugenzura inzira bizaganisha ku musaruro unoze ndetse na firime nziza. Haba kubipakira, gukoresha ubuvuzi, cyangwa gukoresha inganda, gukuramo firime bizakomeza kuba tekinike yingirakamaro mumyaka iri imbere.
