Igihe cy'itumba cyegereje, ubushyuhe buragenda bugabanuka no kugabanuka, kandi bimwe mubisanzwe imbeho ikomatanya byoroshye gupakira ibintu byagaragaye cyane, nkaNY / PE imifuka yatetsenaNY / CPP gusubiramo imifukaibyo birakomeye kandi byoroshye; ibifatika bifite buke buke bwambere; hamwe no kugaragara kwibicuruzwa Ibibazo nkibinyuranyo.
01 Ibifatika bifite buke buke
Kuva ubushyuhe ahantu hatandukanye bwakonje,abakiriya bamwe batangaje ko imbaraga zambere zo guhuza ubushyuhe bwo guteka ubushyuhe bwo hejuru UF-818A / UK-5000 bwaragabanutse mugihe ukora PET / AL / RCPP, bivuze ko imbaraga zurwego rwinyuma ari nziza, ariko imbaraga za imbere imbere ni hasi cyane. Ariko nyuma yo kuyishyira mucyumba cyo gusaza muminota icumi, ihita ibona imbaraga nziza. Umukiriya amaze imyaka irenga igice akoresha iki gicuruzwa kandi cyarahagaze neza cyane, kandi uburyo bwo guhuriza hamwe ntabwo bwahindutse kuva mubyambere.
Nyuma yo kugenzurwa aho, byagaragaye ko impagarara zisanzwe zisanzwe kandi ingano ya kole yakoreshejwe igera kuri 3.7 ~ 3.8g / m2, kandi ntakibazo. Icyakora, igihe igice cyo guhinduranya cyahuye na firime, byagaragaye ko film itigeze ishyuha na gato, ndetse ikumva ikonje. Urebye ibipimo byimiterere yibikoresho bya roller, ubushyuhe bwa roller ni 50 ° C naho igitutu ni 0.3MPa. Nyuma yaUbushyuhe bwa laminating bwazamutse bugera kuri 70 ° C naho umuvuduko wa laminating wazamutse ugera kuri 0.4Mpa, imbaraga za mbere zo guhuza zazamutse cyane, kandi isura yibintu nayo yaratejwe imbere.
Umukiriya yasanze bidasanzwe: ibipimo bibiri byerekana ubushyuhe bwa roller 50 ℃ hamwe nigitutu cya laminating 0.3Mpa byakoreshejwe mbere, kandi ntakibazo nk'iki cyigeze kibaho. Kuki dukeneye guhindura ubu?
Reka duhere ku isesengura ryumuvuduko ukabije: Mugihe cyumucyo wumye, igitutu cyo guhuza urupapuro rwabigenewe na mashini yumye yumye bigaragarira mukabari cyangwa MPa, muri rusange 3bar cyangwa 0.3 ~ 0.6MPa. Agaciro mubyukuri ni kimwe nigitutu cya silinderi ihujwe na rubber roller. Mubyukuri, igitutu gikomatanyije kigomba kuba igitutu kubintu byakandamijwe hagati yumuvuduko ukabije hamwe nicyuma gikomatanya. Agaciro kumuvuduko kagomba kuba kgf / m cyangwa kgf / cm, ni ukuvuga, igitutu kuburebure bwikibice. Nukuvuga ko, F = 2K * P * S / L (K ni coeffisiyoneri igereranijwe, ifitanye isano nuburyo bwumuvuduko wa silinderi. Ubwoko bwumuvuduko utaziguye ni 1, kandi ubwoko bwa lever burenze 1, bufitanye isano nikigereranyo y'imbaraga za lever nimbaraga zo kurwanya P ni igitutu cya silinderi; S ni agace ka silinderi; Kuberako ingano ya silinderi yimashini zitandukanye ziratandukanye kandi uburyo bwo gukoresha igitutu buratandukanye, mugihe indangagaciro zerekanwe kumipima yimashini yimashini zitandukanye nimwe, igitutu nyirizina ntabwo byanze bikunze ari kimwe.
Reka turebere hamwe ubushyuhe bwa lamination: Mugihe cyo kumisha, nyuma yumuti uvuye mumurongo wumye, umusemburo wahindutse cyane, hasigara kole yumye gusa. Ibi biterwa nuko ibyuma byongeye gukoresha polyurethane yumuti bizatakaza ubukonje bwubushyuhe bwicyumba nyuma yo gukama.Kugirango ibice byombi bihuze neza, ibifatika bigomba gukora neza. Kubwibyo, mugihe cyo kumurika, uruziga rwa laminating rugomba gushyuha kugirango ubushyuhe bwarwo bushobore gutera ibifatika kubyara ububobere bukora.
Nyuma yo kwinjira mu Gushyingo, ubushyuhe bwaragabanutse cyane mu turere tumwe na tumwe. Mu mpera z'Ugushyingo, ubushyuhe mu turere tumwe na tumwe bwari hafi 10 ° C. Iyo abakiriya bateranije RCPP, ibikoresho fatizo bikururwa mububiko bukajya mumahugurwa yo kubyaza umusaruro. Muri iki gihe, ubushyuhe bwa RCPP buri hasi cyane. Ufatanije nubushyuhe buke bwa lamination, firime irashyuha mugihe gito mugihe cyo kumurika, kandi ubushyuhe rusange bwa firime ikomatanya ni buke cyane. Uburemere bugereranije bwa molekile yubushyuhe bwo hejuru bwo guteka ni bunini kandi bugomba gushyuha kugirango butere imbaraga ibikorwa bifata. Niba ubushyuhe buri hasi cyane, imbaraga zambere zo guhuza zizagabanuka cyane. Nyuma yo gushyirwa mubyumba bikiza, ibikorwa bya adhesive biraterwa imbaraga kandi imbaraga zirashobora kwiyongera ako kanya.
Noneho, mugihe twongereye ubushyuhe bwo kwiyongera hamwe nigitutu cyo guhuza, iki kibazo cyarakemutse.
Ikindi kibazo gishobora guhura nacyo mugihe ubushyuhe bwa firime buri hasi ni uko kubera ko itandukaniro ryubushyuhe hagati yimbere ninyuma yaya mahugurwa ari rinini cyane, kandi amahugurwa yo gucapa aba atose, mugihe firime idafunguwe, imyuka y'amazi iba yuzuye, hamwe nubuso ya firime izaba ifite ibyiyumvo bitose, bizagira ingaruka kumiterere yibicuruzwa nyuma yo gusaza. n'imbaraga bitera akaga gakomeye. Mubyongeyeho, bitewe nuburinganire bubi buterwa nubushyuhe buke iyo ibifatika bikoreshejwe, ibibazo byo kugaragara nabyo bibaho rimwe na rimwe.
Ingamba zo gukumira:Mu gihe c'itumba, ibikoresho fatizo hamwe nibifatika bigomba gushyirwa mumahugurwa yumusaruro mbere yamasaha 24 ashoboka. Abakiriya bafite imiterere barashobora kubaka pre-greenhouse. Ongera neza ubushyuhe nigitutu cya roller ya lamination kugirango urebe ko firime "ishyushye" nyuma yo kumurika no kuzunguruka.
02 Umufuka wa retort urakomeye kandi uravunitse
Igihe cy'itumba kigeze, NY / PE imifuka yatetse hamwe na NY / CPP retort imifuka iba ikomeye kandi yoroheje. Ikibazo gikomokaho nuko igipimo cyo kumena imifuka cyiyongera. Ibi bimaze kuba ikibazo kimaze igihe kinini mu nganda zose. Ibigo byinshi binini bipakira ibigo nabyo bihangayikishijwe niki kibazo kandi birashaka ibisubizo.
NY / CPP imifuka yubushyuhe bwo hejuru yubusa muri rusange yerekeza kumifuka ikomatanya ishobora guhindurwa kuri 121 ° C muminota irenga 30. Ubu bwoko bwo gupakira bufite umucyo mwiza, imbaraga nyinshi, kandi burakoreshwa cyane. NY / PE imifuka ikoreshwa muguteka no mumifuka ya vacuum kubera imbaraga nyinshi nubukomezi bwiza.Nyamara, ubu bwoko bwimifuka ipakira hamwe na olefin nkuko urwego rwimbere rwo gufunga buri gihe ruhura nibibazo bibiri byingenzi: icya mbere, mugihe cyubukonje bukabije, ubukana bwumufuka buriyongera, kandi igipimo cyo kumena imifuka kiriyongera; icya kabiri, nyuma yo guteka cyangwa guteka, umufuka urakomera kandi ubwinshi bwiyongera.
Muri rusange, ibice byimbere byimbere yubushyuhe bwo hejuru bwimifuka ni RCPP. Inyungu nini ya RCPP ni uko ifite umucyo mwiza kandi ishobora kwihanganira ubushyuhe bwo hejuru hejuru ya 121 ° C. Ikibi ni uko bigoye kandi byoroshye kuruta ibindi bikoresho bifunga ubushyuhe. Ibi ni ukuri cyane mubushyuhe buke.RCPP igabanijwemo imbere mu gihugu no gutumizwa mu mahanga. Byumvikane ko ibicuruzwa byo murugo ahanini bikorerwa homopolymerized, kandi byukuri ibigo bimwe bigira uruhare muguhindura RCPP. RCPP yatumijwe mu mahanga ahanini ishingiye ku guhagarika, kandi ubushyuhe bwo hejuru bw’ubushyuhe bwa homopolymer ni bubi cyane kuruta guhagarika. Homopolymer RCPP izamaganwa nyuma yubushyuhe bwo hejuru, ni ukuvuga RCPP izakomera kandi ivunaguritse, mugihe guhagarika RCPP birashobora kubikwa mbere yo kuboneza urubyaro. y'ubwitonzi.
Kugeza ubu, Ubuyapani buri ku isonga mu bushakashatsi ku isi kuri polyolefine. Polyolefine yo mu Buyapani nayo yoherezwa ku isi yose. Ubworoherane nibikorwa muri rusange bya firime ya NY / PE hamwe no guteka ubushyuhe bwo hejuru bwa firime RCPP nibyiza cyane.
Kubwibyo, ku giti cyanjye ndizera ko ibikoresho bya polyolefin bigira uruhare runini mubibazo byubukomezi nubugome bwimifuka yatetse NY / PE imifuka yatetse hamwe na NY / CPP retort imifuka. Byongeye kandi, usibye ingaruka zibikoresho bya polyolefin, wino hamwe nudukomatanyirizo hamwe nabyo bigira ingaruka runaka, kandi bigomba guhuzwa kugirango amaherezo bitange imifuka yo guteka nziza kandi itetse cyane.
Igihe cy'itumba gifite ingaruka nyinshi kuri lamination ya extrusion, muribwo guhindura itandukaniro ryikirere ari ngombwa cyane, kandi buriwese agomba kubyitondera.
Igihe cyo kohereza: Ukuboza-09-2023
