Filime yububiko bwa plastike nibikoresho bisanzwe bikoreshwa mubipfunyika kubisubiramo. Gusubiramo no gushyushya ubushyuhe ninzira yingenzi yo gupakira ibiryo byo mu rwego rwo hejuru. Nyamara, ibintu bifatika bya firime ya plastike ikunda kubora nyuma yo gushyuha, bikavamo ibikoresho byo gupakira bitujuje ibyangombwa. Iyi ngingo isesengura ibibazo bisanzwe nyuma yo guteka imifuka yubushyuhe bwo hejuru yubushyuhe, kandi ikanerekana uburyo bwabo bwo gupima imikorere, twizeye ko bufite akamaro kayobora umusaruro nyawo.
Ibipapuro bipfunyika ubushyuhe bwo hejuru cyane ni uburyo bwo gupakira bukunze gukoreshwa ku nyama, ibikomoka kuri soya nibindi bicuruzwa byokurya byateguwe. Mubisanzwe ni vacuum ipakiye kandi irashobora kubikwa mubushyuhe bwicyumba nyuma yo gushyukwa no guterwa mubushyuhe bwinshi (100 ~ 135 ° C). Ibiryo bipfunyitse birwanya retort biroroshye gutwara, byiteguye kurya nyuma yo gufungura umufuka, isuku kandi byoroshye, kandi birashobora gukomeza uburyohe bwibiryo, bityo bikundwa cyane nabaguzi. Ukurikije uburyo bwo kuboneza urubyaro hamwe nibikoresho byo gupakira, ubuzima bwigihe cyibicuruzwa bipfunyika bidasubirwaho biva hagati yumwaka kugeza kumyaka ibiri.
Uburyo bwo gupakira ibiryo bisubirwamo ni ugukora imifuka, gupakira, gukurura, gufunga ubushyuhe, kugenzura, guteka no gushyushya sterisizione, kumisha no gukonjesha, no gupakira. Guteka no gushyushya sterilisation ninzira yibanze yibikorwa byose. Nyamara, iyo gupakira imifuka ikozwe mubikoresho bya polymer - plastiki, urunigi rwa molekile rugenda rwiyongera nyuma yo gushyuha, kandi ibintu bifatika byibintu bikunda kwiyongera. Iyi ngingo isesengura ibibazo bisanzwe nyuma yo guteka imifuka yubushyuhe bwo hejuru yubushyuhe, ikanerekana uburyo bwabo bwo gupima imikorere.
1. Isesengura ryibibazo bisanzwe hamwe nudukapu two gupakira
Ubushyuhe bwo hejuru cyane retort ibiryo birapakirwa hanyuma bigashyuha hanyuma bigahagarikwa hamwe nibikoresho byo gupakira. Kugirango ugere kumiterere ihanitse yumubiri nibintu byiza bya barrière, gupakira-retort-idashobora gupakira bikozwe mubikoresho bitandukanye byibanze. Ibikoresho bisanzwe bikoreshwa harimo PA, PET, AL na CPP. Ibikoresho bisanzwe bikoreshwa bifite ibice bibiri bya firime ikomatanya, hamwe nurugero rukurikira (BOPA / CPP, PET / CPP), firime igizwe nibice bitatu (nka PA / AL / CPP, PET / PA / CPP) hamwe na firime yibice bine (nka PET / PA / AL / CPP). Mubikorwa nyabyo, ibibazo byubuziranenge bikunze kugaragara ni iminkanyari, imifuka yamenetse, umwuka uhumeka numunuko nyuma yo guteka:
1). Muri rusange hari uburyo butatu bwo gukuna mu mifuka yo gupakira: gutambuka cyangwa guhagarikwa cyangwa iminkanyari idasanzwe ku bikoresho fatizo bipfunyika; iminkanyari n'ibice kuri buri cyiciro kigizwe n'uburinganire bubi; kugabanuka kw'ibikoresho fatizo bipfunyika, hamwe no kugabanuka k'urwego rugizwe hamwe nibindi bice bitandukanye Gutandukanya, guhanagura. Imifuka yamenetse igabanijwemo ubwoko bubiri: guturika no gukuna hanyuma guturika.
2) .Gusenya bivuga ibintu byerekana ko ibice bigize ibikoresho byo gupakira bitandukanijwe. Gusibanganya gato bigaragarira nkibice bisa nkibice mu bice bitsindagiye bipfunyika, kandi imbaraga zo gukuramo ziragabanuka, ndetse birashobora no gutanyagurwa buhoro n'intoki. Mubihe bikomeye, ipaki igizwe nibice bitandukanye nyuma yo guteka. Niba delamination ibaye, guhuza imbaraga kwimitungo ifatika hagati yibice bigize ibikoresho byo gupakira bizashira, kandi imitungo yumubiri hamwe nimbogamizi bizagabanuka cyane, bigatuma bidashoboka kuzuza ibisabwa mubuzima bwubuzima, akenshi bitera igihombo kinini kubigo .
3) .Icyuka cyuka cyoroshye muri rusange gifite igihe kirekire cyo gukuramo kandi ntabwo byoroshye kubimenya mugihe cyo guteka. Mugihe cyo kuzenguruka no kubika ibicuruzwa, urugero rwa vacuum rwibicuruzwa rugabanuka kandi umwuka ugaragara ugaragara mubipakira. Kubwibyo, iki kibazo cyiza gikubiyemo umubare munini wibicuruzwa. ibicuruzwa bifite ingaruka nyinshi. Kuba umwuka uva mu kirere bifitanye isano rya bugufi no gufunga ubushyuhe buke hamwe no kutamenya neza imifuka ya retort.
4). Impumuro nyuma yo guteka nayo nikibazo gisanzwe. Impumuro idasanzwe igaragara nyuma yo guteka ifitanye isano nibisigara bikabije mubikoresho byo gupakira cyangwa guhitamo ibikoresho bidakwiye. Niba firime ya PE ikoreshwa nkigice cyo gufunga imbere yimifuka yo guteka yubushyuhe bwo hejuru hejuru ya 120 °, firime ya PE ikunda kunuka mubushyuhe bwinshi. Kubwibyo, RCPP muri rusange yatoranijwe nkurwego rwimbere rwimifuka yo guteka cyane.
2. Uburyo bwo gupima ibintu bifatika byo gupakira ibintu
Ibintu biganisha ku bibazo byubuziranenge bipfunyika retort biragoye kandi birimo ibintu byinshi nkibikoresho fatizo byibanze, ibifatika, wino, kugenzura hamwe no gukora ibikapu, hamwe nuburyo bwo gusubira inyuma. Kugirango hamenyekane neza uburyo bwo gupakira hamwe nubuzima bwibiryo, birakenewe gukora ibizamini byo kurwanya guteka kubikoresho.
Igipimo cy’igihugu gikurikizwa ku mifuka yo gupakira idashobora kwisubiraho ni GB / T10004-2008 “Filime ya plastike ikomatanya yo gupakira, imifuka yumye, Lumination ya Extrusion”, ishingiye kuri JIS Z 1707-1997 “Amahame rusange ya firime ya plastiki yo gupakira ibiryo” Byashyizweho kugirango bisimbuze GB / T 10004-1998 “Retort Resistant Composite Films and Bags” na GB / T10005-1998 “Filime ya Biaxically Orient Polypropylene / Filime Yuzuye ya Polyethylene Yuzuye hamwe nisakoshi”. GB / T. Uburyo ni ukuzuza imifuka yo gupakira irwanya retort hamwe na 4% acide acetike, 1% sodium sulfide, 5% ya sodium ya chloride hamwe namavuta yimboga, hanyuma ugahumeka ukanashyiraho kashe, ubushyuhe no kotsa igitutu mumasafuriya yo guteka afite umuvuduko mwinshi kuri 121 ° C kuri Iminota 40, hanyuma ukonje mugihe igitutu kidahindutse. Noneho isura yayo, imbaraga zingana, kurambura, imbaraga zo gukuramo nimbaraga zo gufunga ubushyuhe birageragezwa, kandi igipimo cyo kugabanuka gikoreshwa mugusuzuma. Inzira niyi ikurikira:
R = （AB） / A × 100
Muri formula, R nigabanuka ryikigereranyo (%) cyibintu byapimwe, A ni impuzandengo yikigereranyo cyibintu byageragejwe mbere yikigereranyo cyo hagati yubushyuhe bwo hejuru; B ni impuzandengo yibintu byageragejwe nyuma yubushyuhe bwo hejuru bwihanganira ikigereranyo. Ibisabwa mu mikorere ni: “Nyuma y’ikigereranyo cyo guhangana n’ubushyuhe bwo hejuru bwa dielectric, ibicuruzwa bifite ubushyuhe bwa serivisi ya 80 ° C cyangwa hejuru yayo ntibigomba kugira delamination, kwangirika, guhindura ibintu bigaragara imbere mu gikapu cyangwa hanze, no kugabanuka kwingufu zo gukuramo, gukurura- imbaraga, imbaraga zomwanya kuruhuka, nimbaraga zo gufunga ubushyuhe. Igipimo kigomba kuba ≤30% ”.
3. Kugerageza imiterere yumubiri yimifuka ipakira
Ikizamini nyirizina kuri mashini kirashobora kumenya neza imikorere rusange yububiko bwa retort. Nyamara, ubu buryo ntabwo butwara igihe gusa, ahubwo bugarukira kuri gahunda yumusaruro n'umubare w'ibizamini. Ifite imikorere mibi, imyanda nini, nigiciro kinini. Binyuze mu kizamini cya retort kugirango umenye ibintu bifatika nkibintu bitera imbaraga, imbaraga zishishwa, ubushyuhe bwa kashe mbere na nyuma yo gusubira inyuma, ubwiza bwokwirinda retort yumufuka wa retort burashobora kugenzurwa byimazeyo. Ibizamini byo guteka muri rusange ukoresha ubwoko bubiri bwibintu bifatika nibikoresho byigana. Ikizamini cyo guteka ukoresheje ibintu bifatika birashobora kuba hafi bishoboka uko ibintu byifashe kandi birashobora gukumira neza ibipfunyika bitujuje ibyangombwa kwinjira mumurongo wibyakozwe mubice. Ku bipfunyika inganda, ibikoresho byifashishwa mugupima ibikoresho byo gupakira mugihe cyo kubyara na mbere yo kubika. Kugerageza imikorere yo guteka nibyiza kandi birashoboka. Umwanditsi atangiza uburyo bwo gupima imikorere yumufuka wapakira udukapu twuzuza ibyokurya byigana ibicuruzwa biva mu nganda eshatu zitandukanye kandi bigakora ibizamini byo guteka no guteka. Inzira y'ibizamini niyi ikurikira:
1). Ikizamini cyo guteka
Ibikoresho: Umutekano kandi ufite ubwenge bwinyuma-yumuvuduko mwinshi wo guteka, HST-H3 yipimisha kashe
Intambwe yikizamini: Witonze shyira 4% acide acetike mumufuka wa retort kugeza kuri bibiri bya gatatu byijwi. Witondere kutanduza kashe, kugirango utagira ingaruka ku kwihuta. Nyuma yo kuzuza, funga imifuka yo guteka hamwe na HST-H3, hanyuma utegure ingero 12 zose. Mugihe cyo gufunga, umwuka uri mumufuka ugomba kunanirwa bishoboka kugirango wirinde kwaguka kwikirere mugihe cyo guteka bitagira ingaruka kubisubizo.
Shira icyitegererezo gifunze mu nkono yo guteka kugirango utangire ikizamini. Shyira ubushyuhe bwo guteka kuri 121 ° C, igihe cyo guteka kugeza muminota 40, koresha ibyitegererezo 6, hanyuma uteke 6. Mugihe cyo kugerageza guteka, witondere cyane impinduka zumuvuduko wumwuka nubushyuhe mumasafuriya yo guteka kugirango urebe ko ubushyuhe nigitutu bigumaho mugihe cyagenwe.
Ikizamini kimaze kurangira, ukonje kugeza mucyumba cy'ubushyuhe, ubikuremo urebe niba hari imifuka yamenetse, iminkanyari, gusiba, n'ibindi. Nyuma yikizamini, ubuso bwa 1 # na 2 # byoroheje nyuma yo guteka kandi nta gusiba. Ubuso bwa 3 # sample ntabwo bwari bworoshye nyuma yo guteka, kandi impande zazengurutse kuburyo butandukanye.
2). Kugereranya imitungo ihindagurika
Fata imifuka yo gupakira mbere na nyuma yo guteka, gabanya ingero 5 zurukiramende rwa 15mm × 150mm mu cyerekezo cyambukiranya na 150mm mu cyerekezo kirekire, hanyuma ubishyire mumasaha 4 mubidukikije bya 23 ± 2 ℃ na 50 ± 10% RH. Imashini ya XLW (PC) ifite ubwenge bwa elegitoronike ikoreshwa mugupima imbaraga zimena no kurambura kuruhuka bitewe na 200mm / min.
3). Ikizamini
Ukurikije uburyo A bwa GB 8808-1988 “Uburyo bwo Kwipimisha Peel Kubikoresho Byoroheje Byibikoresho bya Plastike”, gabanya icyitegererezo gifite ubugari bwa 15 ± 0.1mm n'uburebure bwa 150mm. Fata ingero 5 buri cyerekezo gitambitse kandi gihagaritse. Mbere yo gukuramo ibice bigize icyerekezo cy'uburebure bw'icyitegererezo, ubishyire muri XLW (PC) ifite ubwenge bwa elegitoronike yo gupima, hanyuma ugerageze imbaraga zo gukuramo kuri 300mm / min.
4). Ikizamini cyo gushyushya ikimenyetso
Ukurikije GB / T 2358-1998 “Uburyo bwo Kwipimisha Ubushyuhe bwo Gufata Ubushyuhe Bwuzuye Amashashi Yapakira Amapaki”, gabanya urugero rwa 15mm z'ubugari ku gice cyo gufunga ubushyuhe bw'icyitegererezo, ukingure kuri 180 °, hanyuma ushyire ku mpande zombi z'icyitegererezo kuri XLW (PC) ifite ubwenge Kumashini yipimisha ya elegitoronike, umutwaro ntarengwa urageragezwa ku muvuduko wa 300mm / min, kandi igipimo cyo kugabanuka kibarwa ukoresheje formulaire irwanya ubushyuhe bwa dielectric muri GB / T 10004-2008.
Vuga muri make
Ibiryo bipfunyitse birwanya retort bigenda bikundwa nabaguzi kubera kuborohereza kurya no kubika. Kugirango ubungabunge neza ubuziranenge bwibirimo no kwirinda ko ibiryo byangirika, buri ntambwe yuburyo bwo gukora ubushyuhe bwo mu mufuka mwinshi bigomba gukurikiranwa cyane kandi bikagenzurwa neza.
1. Imifuka yo guteka irwanya ubushyuhe bwinshi igomba gukorwa mubikoresho bikwiye ukurikije ibirimo nibikorwa. Kurugero, CPP muri rusange yatoranijwe nkimbere yo gufunga imbere yimifuka yo guteka irwanya ubushyuhe bwinshi; mugihe gupakira imifuka irimo ibice bya AL bikoreshwa mugupakira aside hamwe nibirimo alkaline, urwego PA rugomba kongerwamo hagati ya AL na CPP kugirango byongere imbaraga zo kurwanya aside na alkali; buri cyiciro kigizwe nubushyuhe bwo kugabanuka bugomba kuba buhoraho cyangwa busa kugirango wirinde guturika cyangwa no gusibanganya ibikoresho nyuma yo guteka kubera guhuza nabi nubushyuhe bwo kugabanya ubushyuhe.
2. Kugenzura mu buryo bushyize mu gaciro inzira. Ubushyuhe bwo hejuru burwanya retort imifuka ahanini ikoresha uburyo bwumye. Mubikorwa byo gutunganya firime ya retort, birakenewe guhitamo uburyo bukwiye bwo gufatira hamwe no gufata neza, kandi ukagenzura neza uburyo bwo gukira kugirango umenye neza ko umukozi mukuru wibiti hamwe nuwakize yakira neza.
3. Kurwanya ubushyuhe buringaniye buringaniye nuburyo bukomeye muburyo bwo gupakira imifuka yubushyuhe bwo hejuru. Kugirango ugabanye ibibazo byubuziranenge bwicyiciro, imifuka yubushyuhe bwo hejuru yubushyuhe igomba gusubirwamo ikagenzurwa hashingiwe kumiterere nyayo yakozwe mbere yo kuyikoresha no mugihe cyo kuyibyaza umusaruro. Reba niba isura ya paki nyuma yo guteka iringaniye, yuzuye inkeke, ihindagurika, ihindagurika, niba hariho gusiba cyangwa kumeneka, niba igipimo cyo kugabanuka kumiterere yumubiri (imitungo ya tensile, imbaraga zishishwa, imbaraga zifunga ubushyuhe) zujuje ibisabwa, nibindi.
Igihe cyo kohereza: Mutarama-18-2024
