Izinga lokushisa kanye nokukhanya kwelanga kuzothinta isikhathi sokugcina se-polyester resin engagcwalisiwe. Eqinisweni, kungakhathaliseki ukuthi yi-polyester resin engagcwalisiwe noma amanye ama-resin, izinga lokushisa lokugcina kungcono libe ngama-degree Celsius angama-25 endaweni yamanje. Ngalesi sisekelo, lapho izinga lokushisa liphansi, isikhathi sokusebenza se-polyester resin engagcwalisiwe siba side; lapho izinga lokushisa liphakama, isikhathi sokusebenza siba sifushane.
I-resin idinga ukuvalwa futhi igcinwe esitsheni sokuqala ukuvimbela ukulahlekelwa yi-monomer volatilization kanye nokuwa kokungcola kwangaphandle. Futhi isembozo sebhakede lokupakisha lokugcina i-resin akufanele senziwe ngethusi noma i-alloy yethusi, okungcono kakhulu i-polyethylene, i-polyvinyl chloride nezinye izivalo zensimbi.
Ngokuvamile, ezimweni zokushisa okuphezulu, gwema ukukhanya kwelanga okuqondile emgqonyeni wokupakisha, kodwa isikhathi sokugcina sizoqhubeka sithinteke, ngoba esimweni sezulu sokushisa okuphezulu, isikhathi sejeli se-resin sizofinyezwa kakhulu, uma kuyi-resin yekhwalithi ephansi, ngisho noma izoqina ngqo emgqonyeni wokupakisha. Ngakho-ke, phakathi nesikhathi sokushisa okuphezulu, uma izimo zivuma, kungcono ukuyigcina endaweni yokugcina enomoya opholile enezinga lokushisa elingaguquki elingu-25 degrees Celsius. Uma umenzi engalungiseleli indawo yokugcina enomoya opholile, kumele aqaphele ukufinyeza isikhathi sokugcina se-resin.
Kubalulekile ukuqaphela ukuthi i-resin exutshwe ne-styrene kumele iphathwe njengama-hydrocarbon avuthayo ukuze kuvinjelwe umlilo. Kumelwe kube nokuphathwa okuqinile kwezindawo zokugcina impahla nezitshalo ezigcina lolu hlobo lwe-resin, futhi umsebenzi wokuvimbela umlilo kanye nokushisa kumele wenziwe ngaso sonke isikhathi.
Izindaba zokuphepha okumele ziqashelwe ngesikhathi kucutshungulwa i-resin ye-polyester engagcwele endaweni yokusebenzela
1. I-resin, i-ejenti yokwelapha, kanye ne-accelerator konke kuyizinto ezivuthayo, ngakho-ke ukuvimbela umlilo kumele kunakwe, futhi kumele kugcinwe ngokwehlukana, ngaphandle kwalokho kulula kakhulu ukubangela ukuqhuma.
2. Akufanele kube khona ukubhema futhi kungabikho amalangabi avulekile endaweni yokukhiqiza.
3. Indawo yokukhiqiza kumele igcine umoya owanele. Kunezinhlobo ezimbili zomoya ophumayo e-workshop, enye iwukugcina umoya ujikeleza ngaphakathi, ukuze kususwe i-styrene eguquguqukayo nganoma yisiphi isikhathi. Ngenxa yokuthi umusi we-styrene uminyene kunomoya, ukugcwala kwe-styrene eduze komhlabathi nakho kuphakeme kakhulu. Ngakho-ke, umoya ophumayo e-workshop kungcono ubekwe eduze nomhlaba. Enye ukusebenzisa amathuluzi nemishini ukukhipha umoya endaweni yokusebenza. Isibonelo, setha ifeni ehlukile yokukhipha umoya ukuze ukhiphe umoya we-styrene ogcwele ukugcwala endaweni yokusebenza, noma ukhiphe igesi yomoya ngepayipi elikhulu lokudonsa elifakwe e-workshop.
4. Ukuze kuxazululwe izigameko ezingalindelekile, indawo yokukhiqiza kumele okungenani ibe nezindawo ezimbili zokuphuma.
5. I-resin kanye nezisheshisi ezahlukahlukene ezigcinwe endaweni yokukhiqiza akufanele zibe ziningi kakhulu, kungcono ukugcina inani elincane.
6. Ama-resin angasetshenziswanga kodwa anezelwe ngama-accelerator kufanele adluliselwe endaweni ephephile futhi agcinwe ngokwehlukana ukuze kuvinjelwe ukushisa okukhulu ekuqongeleleni okubangelwa ukuqhuma nomlilo.
7. Uma i-resin ye-polyester engagcwali ivuza futhi ibangela umlilo, amagesi anobuthi azokhishwa phakathi nenqubo futhi abeke impilo yabantu engozini. Ngakho-ke, kumele kuthathwe izinyathelo eziphuthumayo ukubhekana nayo.
Isikhathi sokuthunyelwe: Disemba 16-2021
