Maganin cire gassing wani abu ne mai taimako wanda ke fitar da abubuwa masu canzawa kamar iska, danshi, da ƙananan ƙwayoyin halitta da aka samar yayin haɗin gwiwa da ƙarfafawar murfin foda lokacin da suka narke suka samar da fim. Hakanan yana rama ramukan ƙananan ƙwayoyin halitta da aka saki cikin lokaci, yana guje wa faruwar ƙananan ramuka ko ramuka a cikin fim ɗin rufewa. Wannan nau'in ƙari yana ɗaya daga cikin abubuwan da aka fi amfani da su a cikin murfin foda, kuma yawanci ana ƙara shi zuwa ga tsarin murfin foda.
Maganin cire gass da aka fi amfani da shi a cikin shafa foda shine benzoin. Benzoin lu'ulu'u ne fari ko rawaya mai haske wanda ba shi da wari mai kauri 133-137 ℃ da kuma wurin tafasa na 344 ℃. Yana narkewa kaɗan a cikin ruwa da ether, kuma yana narkewa a cikin acetone mai zafi da ethanol; Rashinsa shine yana iya haifar da launin rawaya na murfin a yanayin zafi mai yawa. Domin shawo kan matsalolin benzoin,gyare-gyaren benzoin da abubuwan cire gas daga kakin zumawaɗanda ba sa yin launin rawaya a lokacin yin burodi da kuma yanayin warkarwa an haɓaka su.
Sakamakon gwaje-gwaje da ayyukan samarwa sun nuna cewa a lokacin haɗakarwa da warkar da murfin foda, nau'ikan rufewa waɗanda ke samar da ƙananan mahaɗan ƙwayoyin halitta suna buƙatar ƙara sinadaran cire gas. Yana da kyau a ƙara wakilin cire gas a cikin murfin epoxy, polyester epoxy, polyester, da polyurethane gabaɗaya saboda murfin foda yana da matsaloli kamar sauƙin sha danshi yayin samarwa da amfani. A cikin murfin epoxy matte da matte foda, ba abu ne mai sauƙi a samar da ramuka da sauran lahani ba tare da ƙara masu cire ƙura kamar benzoin ba. Ba za a iya bayyana dalilin a sarari ba tukuna, kuma yana iya kasancewa saboda saman murfin bai yi santsi da sheƙi kamar mai sheƙi mai yawa ba, kuma wasu lahani na rufewa ba a bayyane suke ba, wanda ke haifar da jin daɗi.
A halin yanzu, benzoin har yanzu wani abu ne da ake amfani da shi wajen cire gas, wanda ke da kusan kashi 0.5% na jimlar kayan da ke samar da fim a cikin murfin foda, wanda za a iya daidaita shi yadda ya kamata a cikin wani takamaiman kewayon gwargwadon nau'in da kuma abun da ke cikin murfin foda. A cikin murfin foda na polyester-HAA (hydroxyalkylamide), idan aka yi la'akari da tasirin benzoin akan launin rawaya na fim ɗin murfin, ya kamata a sarrafa yawansa a kusan kashi 0.3% na jimlar kayan da ke samar da fim, kuma ya kamata a rage amfani da shi gwargwadon iko.Bugu da ƙari, ana iya amfani da sinadaran laushi da kuma cire gas daga jiki ta hanyar amfani da kakin zuma, tare da kashi 1% na jimlar dabarar shafa foda.
A cikin tsarin shafa foda, ana ƙara mayukan cire kumfa a cikin ƙarfen siminti, aluminum da aka yi da siminti, faranti na ƙarfe da aka jika da zafi, da faranti na ƙarfe masu zafi da ramukan yashi ko ramuka a saman abin da aka shafa (aiki) yayin shafa foda don hana samuwar barbashi ko ramukan aman wuta a cikin fim ɗin shafa. Su ƙari ne da aka ƙara don hana samuwar kumfa a cikin fim ɗin shafa.
Idan aka shafa foda a kan sassan ƙarfe na siminti, sassan aluminum da aka yi da siminti, sassan galvanized da aka tsoma a cikin ruwan zafi ko faranti na ƙarfe masu zafi da ramukan yashi ko ramukan fil, a lokacin yin burodi da kuma tsaftace murfin, murfin foda yana narkewa kuma yana lanƙwasa yayin da yake rufe ramukan yashi da ramukan fil a saman abin da aka shafa. Yayin da zafin kayan da aka shafa ya ƙaru, iskar da ke cikin ramukan yashi da ramukan fil na kayan da aka shafa tana faɗaɗa, kuma matsin lambar ciki yana ƙaruwa akai-akai. Lokacin da matsin lambar ciki ya ɗan fi ƙarfin murfin da aka narke, iskar ciki za ta fashe murfin kuma ta samar da ƙananan kumfa don tserewa. Saboda tasirin ƙarfafa murfin foda yayin aikin samar da fim, narkewar ɗanko na murfin yana ƙaruwa akai-akai kuma daga ƙarshe ya zama fim mai kauri. Saboda haka, lokacin da matsin lamba na ciki a cikin ƙananan kumfa bai isa ga ƙarfin da ake buƙata don fashe fim ɗin rufi ba, waɗannan ƙananan kumfa suna samar da barbashi ko granules da ke fitowa daga saman fim ɗin rufi. Lokacin da matsin lamba na ciki a cikin ƙaramin kumfa ya isa ya fashe murfin, ƙaramin kumfa zai fashe kuma iskar da ke ciki za ta tsere zuwa cikin yanayi. Idan murfin a wannan lokacin ya rasa ƙarfin daidaita shi kuma ba zai iya haɗa ƙananan ramukan iska da ke ba da damar iska ta fita ba, ƙwayoyin ko ƙwayoyin dutse na dutse masu aman wuta za su yi ta fitowa, wanda hakan zai zama babbar matsala.
Idan aka ƙara mayukan fesawa a cikin mayukan fesawa, za su iya rage narkewar murfin foda da kuma rage matsin lamba a saman mayukan. Wannan yana ba da damar iska a cikin ramukan yashi da ramukan fil a saman kayan da aka shafa, wanda zafin yin burodi da matsin lamba ke shafarsa, ta fashe cikin sauƙi ta kuma daidaita fim ɗin da ba a goge ba zuwa cikin yanayi. A lokaci guda, gibin da ke cikin fim ɗin da aka shafa inda kumfa ke fitowa shi ma zai iya haɗa matakin cikin sauƙi, yana hana samuwar ƙwayoyin cuta da ƙwayoyin cuta a cikin fim ɗin da aka shafa, ko ƙwayoyin cuta da ramukan da ke da ramukan aman wuta.
Saboda hanyoyin lalata murfin da aka yi da ruwa da kuma na roba sun bambanta gaba ɗaya da na foda, ba za a iya shafa murfin da aka yi da ruwa da na roba kai tsaye ga murfin foda ba. Saboda takamaiman murfin foda, babu nau'ikan murfin da aka yi da foda da yawa kamar na murfin da aka yi da ruwa da kuma na roba.
Lokacin Saƙo: Agusta-15-2025