Indwangu ye-fiberglass ene-PTFE iphephile ngempela ukuthintana nokudla uma yenziwe kahle futhi isetshenziswa ngokweziqondiso. Le nto emisha ihlanganisa izinto ezinganamathi ze-PTFE (i-polytetrafluoroethylene) namandla nokuhlala isikhathi eside kwe-fiberglass, idala indawo eguquguqukayo elungele izinhlelo zokusebenza ezahlukahlukene ezihlobene nokudla. I-FDA igunyaze i-PTFE ukuthintana nokudla, futhi uma isetshenziswa ngendlela efanele ku-fiberglass, igcina imvelo yayo engasebenzi. Kodwa-ke, kubalulekile ukuqinisekisa ukuthi i-coating ayiguquki futhi isetshenziswa ngaphakathi kwamazinga okushisa anconyiwe ukuze kuvinjelwe noma yikuphi ukuwohloka okungaba khona. Uma ithathwe kubakhiqizi abahloniphekile abathobela izinyathelo eziqinile zokulawula ikhwalithi, i-PTFE coated fiberglass inikeza isixazululo esiphephile, esingenabuthi, nesisebenza kahle sezimboni zokucubungula ukudla kanye nokupakisha.
![I-PTFE Coated Fabric]( "PTFE Coated Fabric")
Ukuqonda i-PTFE Coated Fiberglass kanye Nezindawo Zayo Zokuphepha Kokudla
Ukubunjwa kanye Nenqubo Yokukhiqiza ye-PTFE Coated Fiberglass
Indwangu ye-fiberglass ehlanganisiwe ye-PTFE iyinhlanganisela ehlanganisa izici ezihlukile zakho kokubili i-PTFE ne-fiberglass. Inqubo yokukhiqiza iqala ngongqimba oluyisisekelo lwe-fiberglass elukiwe, olunikeza amandla nokuzinza kobukhulu. Le substrate ye-fiberglass ibe isimbozwa nge-PTFE, eyaziwa nangokuthi i-Teflon, ngenqubo ekhethekile eqinisekisa ukunamathela okufanayo nokuqinile.
I-PTFE enamathela isetshenziswa kusetshenziswa amasu ahlukahlukene, okuhlanganisa ukucwiliswa kwe-dip, ukunamathela kwesifutho, noma ukunamathela nge-roller. Ngemva kokufaka isicelo, okubalulekile kungena inqubo yokwelapha ukushisa ebizwa ngokuthi i-sintering. Le nqubo yezinga lokushisa eliphezulu incibilikisa izinhlayiya ze-PTFE, izenze zigeleze futhi zakhe indawo eqhubekayo, ebushelelezi enamathela ngokuqinile ku-fiberglass substrate.
Umphumela uba into ezuzisayo ezintweni ezinganamatheli, ezimelana namakhemikhali ze-PTFE namandla nokumelana nokushisa kwe-fiberglass. Le nhlanganisela eyingqayizivele yenza i-PTFE coated fiberglass ibe yisinqumo esihle ezinhlelweni eziningi zokusebenza, okuhlanganisa lezo ezibandakanya ukuthintana nokudla.
Ukungabi Nalutho Kwekhemikhali kanye Nokungavuselelwa Kwezinto Zokudla
Esinye sezizathu eziyinhloko i-PTFE ehlanganiswe ngendwangu ye-fiberglass ithathwa njengephephile ukuthintana nokudla ukungangeni kwayo kwamakhemikhali okukhethekile. I-PTFE yaziwa ngokungasebenzi kwayo, okusho ukuthi ayihlangani ngamakhemikhali nezinto eziningi, okuhlanganisa nokudla.
Lokhu kuzinza kwamakhemikhali kungenxa yebhondi eqinile ye-carbon-fluorine ku-molecule ye-PTFE. Lezi zibopho ziqine kangangokuthi zimelana nokubhidlika noma ukusabela nezinye izinto, ngisho nangaphansi kwamazinga okushisa aphezulu noma lapho kukhona amakhemikhali anonya. Njengomphumela, i-PTFE coated fiberglass ayingenisi izinto eziyingozi ekudleni, futhi ayimumbi iphunga noma ukunambitheka ezintweni zokudla.
Imvelo engasasebenzi ye-PTFE iphinde isho ukuthi ayikukhuthazi ukukhula kwebhaktheriya, okuyenza ibe ukukhetha okuhle kakhulu kwezindawo zokucubungula ukudla lapho ukuhlanzeka kubaluleke kakhulu. Lesi sakhiwo, sihlanganiswe nendawo yayo ebushelelezi, engenazimbobo, yenza i-PTFE coated fiberglass kube lula ukuyihlanza nokuyigcina ezimeni eziphephile ekudleni.
Ukumelana Nezinga Lokushisa Nokuqina Ezindaweni Zokucubungula Ukudla
I-PTFE coated fiberglass ibonisa ukumelana nezinga lokushisa okuphawulekayo, isici esibalulekile ekufanelekeni kwayo kwezinhlelo zokusebenza zokuxhumana nokudla. Impahla ingamelana namazinga okushisa asukela ku -100°F kuya ku-500°F (-73°C kuya ku-260°C) ngaphandle kokuwohloka okukhulu noma ukulahlekelwa izakhiwo.
Lolu hlu olubanzi lokushisa lwenza i-PTFE camera fiberglass ilungele izinhlelo zokusebenza ezihlukahlukene zokucubungula ukudla, ukusuka emakhazeni kuye ekubhakeni. Ezindaweni ezibandayo, okokusebenza kuhlala kuvumelana nezimo futhi akubi brittle. Ezinhlelweni zokushisa okuphezulu, igcina izakhiwo zayo ezingezona izinti kanye nobuqotho besakhiwo ngaphandle kokukhipha izinto eziyingozi.
Kodwa-ke, kubalulekile ukuqaphela ukuthi ngenkathi i-PTFE ngokwayo ikwazi ukumelana namazinga okushisa aphakeme, izinga lokushisa eliphezulu elinconyiwe le-PTFE coated fiberglass ngokuvamile liba ngu-500°F (260°C). Ngale kwaleli zinga lokushisa, kunengozi yokuthi ukumbozwa kuqale ukuwohloka, okungase kubeke engcupheni izici zayo ezivikela ukudla.
Izimvume Zokulawula kanye Namazinga Omkhakha Wezinto Zokuxhumana Zokudla
Imithethonqubo ye-FDA kanye Nokuvunyelwa kwe-PTFE kokuthi Izicelo Zokuthintana Nokudla
I-US Food and Drug Administration (FDA) iyihlole kabanzi i-PTFE kanye nokufaneleka kwayo kwezinhlelo zokusebenza zokuxhumana nokudla. I-PTFE isohlwini lwe-FDA's Code of Federal Regulations (CFR) Isihloko 21, ikakhulukazi ezingxenyeni 177.1380 kanye no-177.1550, ezimboza izinhlaka ze-fluorocarbon.
Le mithetho ibeka imibandela lapho i-PTFE ingasetshenziswa ngokuphepha ezinhlelweni zokuxhumana zokudla. Bahlanganisa izici ezifana nezinto zokusetshenziswa ezivumelekile, izinsiza zokucubungula, nezindlela zokukhiqiza. Ukugunyazwa kwe-FDA kusekelwe ocwaningweni olunzulu lwesayensi nezifundo ze-toxicological ezibonise ukuphepha kwe-PTFE uma isetshenziswa njengoba kuhlosiwe.
Kuhle ukuqaphela ukuthi ngenkathi i-FDA igunyaza i-PTFE ukuthintana nokudla, abakhiqizi be-PTFE coated fiberglass kufanele baqinisekise ukuthi imikhiqizo yabo ethile ihlangabezana nayo yonke imithetho efanele. Lokhu akubandakanyi kuphela ukunamathela kwe-PTFE kodwa futhi ne-fiberglass substrate nanoma yiziphi izithasiselo noma izinsiza zokucubungula ezisetshenziswa enqubweni yokukhiqiza.
I-European Union kanye Namanye Amazinga Omhlaba Wezinto Zokuxhumana Zokudla
Ngokungeziwe emithethweni ye-FDA, i-PTFE coated fiberglass fabric kumele ihambisane nezindinganiso zamazwe ngamazwe, ikakhulukazi emikhiqizweni ethunyelwa emhlabeni wonke. I-European Union (EU) inesethi yayo yemithethonqubo yezinto ezihloselwe ukuthintana nokudla, eyaziwa ngokuthi i-Framework Regulation (EC) No 1935/2004.
Ngaphansi kwalolu hlaka, i-PTFE ithathwa njengepulasitiki futhi ingaphansi kwezinyathelo ezithile ezichazwe ku-Regulation (EU) No 10/2011 ngezinto zepulasitiki nama-athikili okuhloswe ukuthi ahlangane nokudla. Lo mthethonqubo ubeka uhlu oluhle lwezinto ezingasetshenziswa ekwenzeni amapulasitiki okuxhumana nokudla, okuhlanganisa i-PTFE.
Amanye amazwe nezifunda zinezindinganiso nemithetho yazo. Isibonelo, i-Japan inoMthetho Wokuthuthwa Kwendle Wase-Japan, kuyilapho i-China inezindinganiso ze-GB zezinto zokuxhumana zokudla. Abakhiqizi abaphokophele izimakethe zomhlaba kumele baqinisekise ukuthi imikhiqizo yabo ye-fiberglass ene-PTFE ithobelana nalawa mazinga ahlukahlukene wamazwe ngamazwe.
Izitifiketi Eziqondene Nemboni kanye Nezinyathelo Zokuqinisekisa Ikhwalithi
Ngaphandle kokuthobela imithetho, abakhiqizi abaningi be-PTFE coated fiberglass bafuna izitifiketi ezengeziwe ukuze babonise ikhwalithi nokuphepha kwemikhiqizo yabo. Lezi zitifiketi ngokuvamile zihlanganisa ukuhlola okuqinile nezinqubo zokuhlola ukuze kuqinisekiswe ikhwalithi engaguquki namazinga okuphepha.
Esinye sezitifiketi ezinjalo yizinga le-ISO 22000, elicacisa izidingo zohlelo lokuphatha ukuphepha kokudla. Nakuba leli zinga livame ukusetshenziswa kubakhiqizi bokudla, abahlinzeki bezinto zokudlala ezifana ne-PTFE coated fiberglass bangase bafune isitifiketi ukuze babonise ukuzibophezela kwabo ekuphepheni kokudla.
Esinye isitifiketi esifanelekile wuhlelo lwe-HACCP (I-Hazard Analysis and Critical Control Points). Yize isetshenziswa kakhulu embonini yokudla, imigomo ye-HACCP ingasetshenziswa ekwakhiweni kwezinto zokuxhumana zokudla ukuze kuqinisekiswe ukuthi izingozi ezingaba khona ziyakhonjwa futhi ziyalawulwa.
Abakhiqizi abaningi baphinde basebenzise izinyathelo eziqinile zokulawula ikhwalithi kuyo yonke inqubo yabo yokukhiqiza. Lokhu kungase kuhlanganise ukuhlolwa okuvamile kwezinto zokusetshenziswa, ukuhlolwa okusetshenzwayo, nokuhlolwa komkhiqizo kokugcina ukuze kuqinisekiswe ukuthi i-PTFE enamathelayo isetshenziswa ngendlela efanele futhi ihlangabezana nayo yonke imininingwane edingekayo ukuze kusetshenziswe ukudla.
Imikhuba Engcono Kakhulu Yokusebenzisa I-PTFE Coated Fiberglass Ekucubunguleni Ukudla
Ukuphathwa Okufanelekile Nokugcinwa Kwemikhiqizo ye-PTFE Coated Fiberglass
Ukugcina izakhiwo eziphephile zokudla ze-PTFE coated fiberglass, ukuphatha nokunakekelwa okufanele kubalulekile. Abasebenzisi kufanele bagweme ukusebenzisa izinto ezicijile noma izinto ezilumayo ezingaklwebha noma zonakalisa ukunamathela kwe-PTFE. Ngisho nokuklwebheka okuncane kungonakalisa indawo enganamathele futhi kudale izindawo lapho izinhlayiya zokudla noma amagciwane anganqwabelana khona.
Ukuhlolwa okuvamile kwemikhiqizo ye-fiberglass eboshiwe ye-PTFE kuyanconywa ukuthi kuhlole noma yiziphi izimpawu zokuguga noma zokulimala. Uma kukhona ukuwohloka okubonwayo, umkhiqizo kufanele ushintshwe ukuze kuqinisekiswe ukuphepha kokudla okuqhubekayo. Kubalulekile futhi ukulandela imihlahlandlela yomkhiqizi yokuhlanza nokunakekela, okuvamise ukubandakanya ukusebenzisa okokuhlanza okuncane kanye nokugwema izihlanzi zamakhemikhali ezinokhahlo ezingahle zehlise isithunzi se-PTFE.
Isitoreji esifanele esinye isici esibalulekile sokugcina imikhiqizo ye-fiberglass ehlanganiswe ne-PTFE. Kufanele zigcinwe endaweni ehlanzekile, eyomile kude nelanga eliqondile kanye namazinga okushisa aphezulu. Ukupakisha izinto ezisindayo phezu kwamashidi noma izindwangu ezimbozwe nge-fiberglass ye-PTFE kufanele kugwenywe ukuze kuvinjelwe ukulimala kwento enamathelayo.
Imikhawulo Yezinga Lokushisa kanye Nokugwema Ukushisisa ngokweqile
Nakuba i-PTFE camera fiberglass Indwangu yaziwa ngokuhle kakhulu ukumelana nokushisa, kubalulekile ukuthobela imikhawulo yokushisa enconywayo. Njengoba kushiwo ngaphambili, izinga lokushisa elijwayelekile eliphezulu lokusebenza le-PTFE coated fiberglass lizungeze u-500°F (260°C). Ukweqa leli zinga lokushisa kungaholela ekucekeleni phansi kwe-PTFE enamathelayo, okungase kubeke engcupheni izici zayo eziphephile ekudleni.
Ezinhlelweni zokucubungula ukudla, kubalulekile ukuqapha nokulawula amazinga okushisa ngokucophelela. Lokhu kubaluleke kakhulu ekusetshenzisweni kokushisa okuphezulu njengokubhaka noma ukucubungula ukudla kwasembonini. Ukusebenzisa izinhlelo zokuqapha izinga lokushisa nokusungula izinqubo zokusebenza ezicacile kungasiza ekuvimbeleni ukushisa ngokweqile ngengozi.
Kuhle futhi ukuqaphela ukuthi nakuba i-PTFE ngokwayo ingancibiliki kuze kube yilapho izinga lokushisa liphezulu kakhulu (cishe u-620°F noma 327°C), izici zomshini ze-fiberglass substrate zingase ziqale ukuwohloka emazingeni okushisa aphansi. Ngakho-ke, ukuhlala ngaphakathi kwebanga lokushisa elinconywayo kubalulekile ekugcineni kokubili ukusebenza nokuphepha kwempahla.
Izinqubo Zokuhlanza Nokuhlanza Kwezindawo Zokuthintana Nokudla
Ukuhlanzwa ngendlela efanele kanye nokukhuculula izindawo ze-fiberglass ezinamekwe nge-PTFE kubalulekile ezindaweni zokucubungula ukudla. Izindaba ezinhle ukuthi imvelo enganamatheli ye-PTFE yenza lezi zindawo kube lula ukuzihlanza. Kodwa-ke, izivumelwano ezithile kufanele zilandelwe ukuze kuqinisekiswe ukuhlanzwa okuphelele ngaphandle kokulimaza ukunamathela.
Ukuhlanza okujwayelekile, amanzi afudumele kanye nesihlanzi esithambile ngokuvamile kwanele. Gwema ukusebenzisa amathuluzi okuhlanza abrasive noma amakhemikhali anokhahlo angase alimaze i-PTFE enamathelayo. Kunconywa izindwangu ezithambile noma izipontshi ukuze kuhlanzwe. Ngemuva kokugeza, izindawo ezingaphezulu kufanele zihlanjululwe kahle ngamanzi ahlanzekile ukuze kukhishwe noma yimuphi umuthi osele.
Ukuze kuhlanzwe indle, izibulali magciwane zebanga lokudla ezigunyazwe ukusetshenziswa ezindaweni ezithinta ukudla kufanele zisetshenziswe. Kubalulekile ukulandela imiyalelo yomkhiqizi mayelana nokugxilisa ingqondo nesikhathi sokuxhumana. Ngemuva kokuhlanzwa kwendle, izindawo ezingaphezulu kufanele futhi zihlanjululwe kahle ngamanzi aphuzwayo.
Kwezinye izindawo zokucubungula ukudla, ukuhlanza isitimu kungasetshenziswa. I-PTFE coated fiberglass ngokuvamile ingamelana nokuhlanzwa kwesitimu, kodwa kufanele kuqashelwe ukuthi kungeqi imikhawulo yezinga lokushisa. Ngaso sonke isikhathi landela izincomo zomkhiqizi zokuhlanza kanye nezindlela zokukhucululwa kwendle.
Isiphetho
Indwangu ye-fiberglass eboshwe nge-PTFE ikhombisa ukuthi iyimpahla ephephile nesebenzayo yezinhlelo zokusebenza zokuxhumana nokudla uma yenziwe futhi isetshenziswa kahle. Inhlanganisela yayo eyingqayizivele yokungangeni kwamakhemikhali, ukumelana nezinga lokushisa, kanye nezakhiwo ezinganamatheli kuyenza ibe yisinqumo esihle kakhulu semisebenzi ehlukahlukene yokucubungula ukudla kanye nokupakisha. Ngokunamathela ezindinganisweni zokulawula, ukulandela izinqubo ezingcono kakhulu zokuphatha nokunakekela, nokusebenzisa izimiso ezifanele zokuhlanza, izimboni zingasebenzisa izinzuzo ze-PTFE coated fiberglass kuyilapho ziqinisekisa amazinga aphezulu okuphepha kokudla. Njenganoma iyiphi into yokuxhumana nokudla, kubalulekile ukuthola imikhiqizo ye-fiberglass ene-PTFE evela kubakhiqizi abahloniphekile ababeka phambili ikhwalithi nokuhambisana nemithetho yokuphepha kokudla.
Xhumana nathi
Ngendwangu ye-fiberglass ehlanganiswe nekhwalithi ephezulu ye-PTFE ehlangabezana nezindinganiso eziphakeme kakhulu zokuphepha zezinhlelo zokusebenza zokuxhumana nokudla, cabanga Aokai PTFE . Imikhiqizo yethu ikhiqizwa ngokunemba nangokucophelela, iqinisekisa ukusebenza kahle nokuphepha ezindaweni zokucubungula ukudla. Ukuze ufunde kabanzi mayelana nohlu lwethu lwemikhiqizo ye-fiberglass ehlanganisiwe ye-PTFE nokuthi ingazuza kanjani ekusebenzeni kwakho kokucubungula ukudla, xhumana nathi ku- mandy@akptfe.com . Vumela i-Aokai PTFE ibe nguzakwethu ekugcineni ukuphepha kokudla nokusebenza kahle.
Izithenjwa
I-FDA. (2021). Ikhodi Yemithetho Yombuso Isihloko 21, Ingxenye 177 - Izengezo Zokudla Ezingaqondile: Ama-Polymers. I-US Food and Drug Administration.
Ikhomishini yaseYurophu. (2004). I-Regulation (EC) No 1935/2004 ngezinto zokwakha nezindatshana ezihloselwe ukuthintana nokudla. Ijenali Esemthethweni Ye-European Union.
I-Dupont. (2020). I-DuPont™ Teflon® Industrial Coatings: Ukuthobela Ukuthintana Nokudla. Inkampani engu-DuPont de Nemours, Inc.
Warwick, D. (2018). Izinto Zokuxhumana Zokudla - Amarabha, Ama-Silicone, Ama-coatings kanye Noyinki. Inkampani Smithers Information Ltd.
ISO. (2018). I-ISO 22000:2018 Izinhlelo zokuphatha ukuphepha kokudla - Izimfuneko zanoma iyiphi inhlangano esemgqeni wokudla. Inhlangano Yamazwe Ngamazwe Yokumisa.
Ikhomishini ye-Codex Alimentarius. (2003). Imithetho Ejwayelekile Yokuzilolonga Enconyiwe Yamazwe Ngamazwe Yenhlanzeko Yokudla. Inhlangano Yezokudla Nezolimo yeNhlangano Yezizwe Ezihlangene.
