Uhlolojikelele lokuthuthukiswa komkhakha wamafilimu

Ifilimu yokwelula, eyaziwa nangokuthi i-pallet packaging. Eyokuqala e-China ukukhiqiza ifilimu enwetshiwe ye-PVC ene-PVC njengento eyisisekelo kanye ne-DOA njenge-plasticizer kanye nomsebenzi wokuzinamathisela. Ngenxa yezinkinga zokuvikela imvelo, izindleko eziphezulu (ezihlobene ne-PE, indawo encane yokupakisha iyunithi), ukunwebeka okungalungile nezinye izizathu, ifilimu ye-PE stretch yaqedwa kancane kancane lapho ukukhiqizwa kwasekhaya kwefilimu ye-PE stretch iqalwa ngo-1994-1995. Ifilimu yokwelula ye-PE kuqala isebenzisa i-EVA njengezinto ezinamathelayo, kodwa izindleko zayo ziphezulu futhi zinambitheka. Kamuva, i-PIB ne-VLDPE zisetshenziswa njengezinto ezinamathelayo. Izinto eziyisisekelo manje seziyi-LLDPE, okuhlanganisa i-C4, i-C6, i-C8 ne-metallocene PE. (MPE). Manje ingxenye esenyakatho yeChina imelelwe ifilimu ethi "TOPEVER" ekhiqizwe yiShandong Topever Group, ezuze umusa wamakhasimende avela emazweni amaningi.

Ifilimu yasekuqaleni ye-LLDPE eyeluliwe yayiyifilimu eshaywayo kakhulu, isuka kungqimba olulodwa iye kwezimbili futhi izendlalelo ezintathu; manje ifilimu yokwelula ye-LLDPE ikhiqizwa ngokuyinhloko ngendlela yokusakaza, ngoba ukukhiqizwa komugqa wokulingisa kunezinzuzo zokujiya okufanayo nokubonakala okuphezulu. Ingasetshenziswa ezidingweni zesilinganiso esiphezulu sokunwetshwa kwangaphambili. Njengoba ukusakaza kwesendlalelo esisodwa kungakwazi ukuzuza ukunamathela kohlangothi olulodwa, inkambu yohlelo lokusebenza inomkhawulo. Ukusakazwa kwesendlalelo esisodwa kanye nesendlalelo esikabili akubanzi njengokusakazwa kwezendlalelo ezintathu ngokuya ngokukhetha impahla, futhi izindleko zokubunjwa nazo ziphezulu, ngakho-ke uhlaka lwe-co-extrusion enezendlalelo ezintathu lufaneleka kakhulu. Ifilimu enwebekayo yekhwalithi ephezulu kufanele ibe nezici zokucaca okuphezulu, ukunwetshwa kwe-longitudinal okuphezulu, indawo yokukhiqiza ephezulu, amandla aphezulu okudabula aguquguqukayo, nokusebenza kahle kokubhoboza.

Ukuhlukaniswa Kwefilimu Yokunwebeka

Njengamanje, amafilimu enwetshiwe emakethe ahlukaniswe abe izinhlobo ezimbili: amafilimu okwelula izandla namafilimu okwelula umshini ngokuya ngokusetshenziswa okuhlukile. Ugqinsi lwefilimu enwetshiwe yesandla ngokuvamile luyi-15μ-20μ, futhi ukujiya kwefilimu enwetshiwe yomshini kungu-20μ-30μ, ngaphandle kwamacala akhethekile. Ngokwendlela yokupakisha, ukupakishwa kwefilimu yokwelula kungahlukaniswa kube ukupakisha okunwebeka ngesandla, ukupakisha okunwebekayo okudambisayo, kanye nokupakishwa kwangaphambi kokunwetshwa. Ihlukaniswa ngezinto ezibonakalayo, ifilimu enwetshiwe ingahlukaniswa ibe ifilimu ye-polyethylene elula, ifilimu ye-polyvinyl chloride elula, ifilimu ye-ethylene-vinyl acetate stretch film, njll. abe insakavukela yamafilimu ezelula. Ngokwesakhiwo sefilimu, ifilimu elula ingahlukaniswa ibe ifilimu yokwelula isendlalelo esisodwa kanye nefilimu yokwelula enezingqimba eziningi. Ngokuvamile, uhlangothi olulodwa kuphela olunamathelayo, ngakho-ke luvame ukubizwa ngokuthi ifilimu enamathele ehlangothini olulodwa. Ngokuthuthukiswa kwemishini yokukhiqiza amafilimu nobuchwepheshe, izinzuzo zamafilimu anezingqimba eziningi, asiza ekuthuthukiseni ikhwalithi yomkhiqizo kanye nokunciphisa izindleko zomkhiqizo, sezivele zabonakala kakhulu. Njengamanje, amafilimu anwetshiwe anezakhiwo zongqimba olulodwa aye ancipha kancane kancane. Ngokwezindlela ezihlukene zokubumba nezindlela zokucubungula, ifilimu enwetshiwe ingahlukaniswa ibe ifilimu enwetshiwe eshaywayo kanye nefilimu yokwelula, futhi ifilimu yokwelula ye-cast inokusebenza okungcono. Ihlukaniswa ngokwesicelo, ifilimu enwetshiwe ingahlukaniswa ibe ifilimu enwetshiwe yokupakishwa komkhiqizo wezimboni (njengefilimu enwetshiwe yokupakishwa kwempahla yasendlini, imishini, amakhemikhali, izinto zokwakha, njll.), ifilimu enwetshiwe yokupakishwa kwezolimo, nefilimu enwetshiwe yokupakishwa kwasendlini. .

Yelula Ifilimu Engavuthiwe Material

Izinto ezisetshenziswayo eziyinhloko zefilimu enwetshiwe yi-LLDPE, futhi ibanga elihilelekile ngokuyinhloko liyi-7042. Ngenxa yezidingo ezikhethekile zefilimu, i-7042N, 1018HA, 1002YB, 218N kanye ne-3518CB nayo ingasetshenziswa.

Ukusetshenziswa Kwefilimu Yelula

Njengengxenye ebalulekile yokuthutha impahla, ifilimu enwetshiwe idlala indima yokulungisa impahla. Isetshenziswa kabanzi ekwenzeni iphepha, izinto, imboni yamakhemikhali, izinto zokusetshenziswa zepulasitiki, izinto zokwakha, ukudla, ingilazi, njll.; ekuhwebeni kwamanye amazwe, ukwenza amaphepha, ihardware, amakhemikhali epulasitiki, izinto zokwakha, Ukudla, imithi kanye neminye imikhakha. Kungashiwo ukuthi nomaphi lapho kukhona ukudluliswa kwendawo kwezinto, kukhona ukuba khona kwefilimu yethu elula.

Yelula Izisetshenziswa Zokukhiqiza Amafilimu

Ngokuphathelene nemishini, okwamanje imishini yokukhiqiza ifilimu elula yasekhaya ihlukaniswe imigqa engenisiwe kanye nemigqa yokukhiqiza yasekhaya. Imigqa yokukhiqiza engenisiwe ikakhulukazi ivela e-Italy, e-United States, naseJalimane; imigqa yokukhiqiza yasekhaya igxile eJiangsu, eZhejiang, eHebei naseGuangdong. Futhi iChanglongxing Machinery Manufacturing Factory yaziwa kakhulu eChina. I-Shandong Topever Group manje seyethule imigqa eminingi yokukhiqiza evela kwamanye amazwe ukuze isebenzisane nemigqa yokukhiqiza yasekhaya engaphezu kweshumi ukuze kuthunyelwe ukukhiqizwa. Ngokusho kweminyaka eminingi yokuqonda imboni, amandla okukhiqiza imishini ahlukile ezindaweni ezahlukene. Isivinini sokukhiqiza somugqa wokukhiqiza wasekhaya singama-80-150 m/min. Eminyakeni yamuva, imishini yasekhaya yejubane eliphezulu ye-200-300 m/min isesigabeni socwaningo nentuthuko; kuyilapho isivinini sokukhiqiza somugqa ongenisiwe senyuswe ku-300-400 m / min, 500 m / min Umugqa wejubane eliphezulu nawo uphumile. Imishini yokukhiqiza ifilimu enwetshiwe iyahlukahluka ngentengo ngenxa yobubanzi obuhlukene nesivinini sokukhiqiza. Njengamanje, umshini wasekhaya we-0.5m wokwelula ifilimu osetshenziswa ngesandla yi-70,000-80,000/ucezu, futhi umshini wefilimu owelula osebenzisa umshini yi-90,000-100,000/ucezu; Intambo yemitha eyi-1 yi-200,000-250,000 / ucezu; Ulayini wamamitha angu-2.0 uphakathi kuka-800,000 no-1.5 wezigidi/ucezu.