Nekukurumidza kusimudzira kweindasitiri yekurongedza, huremu uye nyore kutakura zvinhu zvekurongedza zvinogadzirwa zvishoma nezvishoma uye kushandiswa zvakanyanya. Nekudaro, kuita kweiyi mitsva yekurongedza zvinhu, kunyanya iyo okisijeni barriers kuita inogona kusangana nemhando yezvinodiwa zvechigadzirwa kurongedza? Izvi zvinowanzoitika kune vatengi, vashandisi uye vagadziri vezvigadzirwa zvekutakura, masangano ekuongorora mhando pamatanho ese. Nhasi tichakurukura mapoinzi makuru ekuyedzwa kweokisijeni permeability yekurongedza chikafu.
Mwero wekutapurirana okisijeni unoyerwa nekugadzirisa pasuru kumudziyo wekuyedza uye kusvika pakuenzanisa munzvimbo yekuyedza. Okisijeni inoshandiswa seyeyedzo gasi uye nitrogen seyekutakura gasi kugadzira imwe mutsauko weokisijeni pakati pekunze nemukati mepakeji. Chikafu kurongedza permeability yekuyedza nzira inonyanya kusiyanisa nzira yekumanikidza uye isobaric nzira, iyo inonyanya kushandiswa ndiyo yekusiyanisa kumanikidza nzira. Iyo yekumanikidza musiyano nzira yakakamurwa kuita zvikamu zviviri: iyo vacuum yekumanikidza musiyano nzira uye yakanaka yekumanikidza musiyano nzira, uye nzira yevacuum ndiyo inomiririra yakanyanya bvunzo nzira mune yekumanikidza musiyano nzira. Iyo zvakare ndiyo yakanyatso kuyedza nzira yekuyedza data, ine huwandu hwakasiyana hwemagasi ekuyedza, akadai seokisijeni, mweya, kabhoni dhaidhirodhi uye mamwe magasi kuyedza kupera kwezvinhu zvekurongedza, kushandiswa kweiyo yakajairwa GB/T1038-2000 plastiki. firimu uye sheet gasi permeability bvunzo nzira
Nheyo yekuyedza ndeye kushandisa sampuli kupatsanura kamuri yekupinda munzvimbo mbiri dzakaparadzana, kutanga vacuum mativi ese emuenzaniso, wozozadza rimwe divi (yakakwirira kudzvanya divi) ne 0.1MPa (yakazara kumanikidza) gasi rekuyedza, nepo rimwe divi. (low pressure side) inoramba iri vacuum. Izvi zvinogadzira gasi rekuyedza kudzvanya musiyano we0.1MPa pamativi ese emuenzaniso, uye gasi rekuyedza rinopinda nemufirimu richienda kune yakaderera dzvinyiriro yedivi uye rinokonzera shanduko yekumanikidza kune yakaderera yekumanikidza divi.
Huwandu hukuru hwemhedzisiro yebvunzo inoratidza kuti pamukaka mutsva wekurongedza, iyo yekurongedza okisijeni permeability pakati pe200-300, yefiriji pasherufu yemazuva angangoita gumi, oksijeni permeability pakati pe100-150, kusvika kumazuva makumi maviri, kana iyo oxygen permeability ichidzorwa pazasi 5. , ipapo hupenyu hwesherufu hunogona kusvika kupfuura mwedzi 1; yezvigadzirwa zvenyama yakabikwa, haingofanire kutarisisa kuwanda kweokisijeni permeability yezvinhu kudzivirira oxidation uye kuparara kwezvigadzirwa zvenyama. Uye zvakare teerera kune hunyoro chipingamupinyi kuita kwechinhu. Zvechikafu zvakakangwa senge ma noodles ekare, chikafu chakazvitutumadza, zvekurongedza zvinhu, zvakafanana chipingamupinyi kuita hachifanirwe kufuratirwa, kurongedza kwechikafu chakadaro kunonyanya kudzivirira chigadzirwa oxidation uye rancidity, saka kuwana airtight, kuvharwa kwemhepo, mwenje, gasi chipingamupinyi, nezvimwewo, iyo yakajairwa kurongedza inonyanya kuve vacuum aluminized firimu, kuburikidza nekuyedzwa, iyo yakajairika oksijeni permeability yezvinhu zvekurongedza zvakadaro zvinofanirwa kuve. pazasi 3, mwando permeability mune zvinotevera 2; musika wakajairika gasi conditioning packaging. Kwete chete kudzora huwandu hweokisijeni permeability yezvinhu, kune zvakare zvimwe zvinodikanwa zvepermeability yecarbon dioxide.
Nguva yekutumira: Feb-24-2023