Iitships zepolymer zepolyester ezifana nePET zi-hygroscopic kwaye zifunxa umswakama ovela emoyeni ojikelezileyo. Umswakama omninzi kwiitships unokubangela iingxaki ngexesha lokubumba nokukhupha i-injection. Xa iplastiki ishushu, amanzi equlethwe kuyo ayenza i-hydrolyze i-PET, nto leyo enciphisa amandla ayo kunye nomgangatho wayo. Oku kuthetha ukususa umswakama omninzi kangangoko kunokwenzeka kwi-resin ngaphambi kokuba i-PET icutshungulwe kumatshini wokubumba. Phantsi kweemeko zomoya, ii-resin zinokuba namanzi afikelela kwi-0.6% ubunzima.
Ngoko ke ukomisa iiPET ukuze kulinganiswe ukufuma njani?
Apha sidwelisa amacebiso amabini ekufuneka uwakhathalele xa usenza i-PET drying ukuze ulinganise ukufuma.
Iipellets zezilwanyana zasekhaya zomiswa ngaphambi kokuba zicutshungulwe
Iitships zomthi zifakwa kwi-hopper, emva koko umoya oshushu, owomileyo onobushushu obufana nomhlwa obumalunga nama-50°C uphonswa ezantsi kwe-hopper, kwaye ugeleza phezulu phezu kwee-pellets, ususa naluphi na umswakama endleleni. Umoya oshushu ushiya i-hopper ephezulu uze udlule kwi-cooler emva koko, njengoko umoya obandayo ususa umswakama ngokulula kunomoya oshushu. Umoya obandayo, omanzi ophumayo udlula kwi-desiccant bed. Ekugqibeleni, umoya obandayo, owomileyo ophuma kwi-desiccant bed ufudunyezwa kwakhona kwi-process heater uze uthunyelwe kwakhona ngenkqubo efanayo kwi-closed loop. Umxholo womswakama weetships kufuneka ube ngaphantsi kwe-30 ppm ngaphambi kokuba ucutshungulwe. Xa i-PET ifudunyezwa, naliphi na amanzi akhoyo aya kuyi-hydrolyze ngokukhawuleza i-polymer, inciphise ubunzima bayo beemolekyuli kwaye itshabalalise iimpawu zayo zomzimba.
Ukulinganisa kwi-Intanethi kunye nokujonga indawo
Kukho iindlela ezimbini zokulinganisa ukufuma ngexesha lokomisa: ukulinganisa kwi-intanethi kunye nokujonga indawo.
① ukulinganisa kwi-intanethi
Ii-dryer nganye nganye zijongwa rhoqo ukuqinisekisa ukuba umoya oya kwi-PET ungcono kunomda wobushushu obuchaziweyo be-dew point we-50°C dew point ukuqinisekisa ukuba izinto ze-chip zomile ngokufanelekileyo. Apho kufuneka khona ukulinganisa okuchanekileyo ngokulinganisa kwangaphakathi ngokuzenzekelayo, unokufaka i-Inzwa ye-HT-608 dew pointkufutshane nendawo yokungena ye-drying hopper, kwaye ubukhulu bayo obuncinci kunye nobunzima bayo kwenza kube lula ukuyifaka kwiipayipi okanye kwiindawo ezixineneyo ukujonga ukuvuza kwindlela yomoya wokomisa. Ukuchaneka okuphezulu ±0.2 ° C (5-60 ° C Td), xa kuthelekiswa nomgangatho weemveliso ezingenisiweyo, ezifikelelekayo, yindlela efanelekileyo engabizi kakhulu.
② Jonga kwaye ulinganise
Uhlolo oluqhelekileyo noHengkoImitha yobushushu kunye nokufuma ephathwayo ye-HK-J8A102Imitha yobushushu kunye nokufuma ephathwayo enokulinganiswa inokubonelela ngoqinisekiso lomgangatho wemveliso olungabizi kakhulu. Kulula ukuyisebenzisa, ilinganisa ubushushu ngaxeshanye, ukufuma, indawo yomthunzi, ibhalbhu emanzi, kunye nolunye ulwazi. Phendula ngokukhawuleza kwiindawo zomthunzi ezisemgangathweni zoshishino ezingaphantsi kwama-50℃.
Uluhlu lokulinganisa iqondo lobushushu kunye nokufuma kwemitha yi--50℃-60℃, kwaye isikrini esikhulu se-LCD silungele ukufunda nokufunda. Idatha yokulinganisa ibalwa kanye emva kwe-10 milliseconds, kwaye isantya sempendulo sibucayi, kwaye umlinganiselo uchanekile.
Usenemibuzo kwaye ungathanda ukwazi iinkcukacha ezingaphezulu malunga nokubeka iliso kumswakama phantsi kweemeko zemozulu ezimbi, nceda uzive ukhululekile ukuqhagamshelana nathi ngoku.
Kwakhona UnakoSithumelele i-imeyileNgqo Njengoko Landela:ka@hengko.com
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Ixesha lokuthumela: Epreli-21-2022
