Anti-lalata epoxy foda shafi yana taka aikin kariya

Aikace-aikacen haɗin gwiwa na kariyar cathodic da kariyar lalata, yana ba da damar tsarin ƙarfe na ƙarƙashin ƙasa ko ƙarƙashin ruwa don samun mafi kyawun tattalin arziki da ingantaccen kariya. Yawancin lokaci an rufe shi da murfin kariya kafin amfani da shi, zuwa ƙarfe da dielectric muhalli keɓewar keɓewar wutar lantarki, mai kyau mai laushi zai iya kare fiye da 99% na sifofin farfajiyar waje daga lalata. A bututu shafi a samar, sufuri da kuma yi, ba zai iya da cikakken garanti a kan wani lalacewa zuwa (cika bakin shafi, da shafi yawa, shafi pinhole, da dai sauransu), ba zai yiwu a bututun lalata yanayi ne gaba daya ware. Amma kuma ga anti-lalata rufi Layer na daban-daban kayan, a sãɓãwar launukansa digiri, absorbent da breathable, kuma za a binne absorbent a hankali. Don kula da ingantaccen maganin lalata, wajibi ne a dauki kariya ta cathodic wato, kariya ta haɗin gwiwa. Ƙaƙƙarfan sutura (kauri> 1mm), kariya ta haɗin gwiwar bututu ya kamata a zaɓi yuwuwar kariya daga -1.10 zuwa-1.15V (CSE), murfin bakin ciki (kauri ≤ 1mm) ɗaukar yuwuwar kariyar -1.05 zuwa-1.10V (CSE), Yin la'akari da abun da ke ciki na ƙasa, zafi, zafin jiki, nau'in sutura, ingancin sutura, da ƙananan ƙwayoyin cuta, gyare-gyare masu dacewa ga yuwuwar kariyar, duka don kare bututun ba tare da lalata murfin lalata ba. Lalacewar yanayin ƙima na halin yanzu ya fi tasiri. "Kariya" wani muhimmin ra'ayi ne a nan, wanda anti-lalata epoxy foda a wurin, "kariya"?

The rufi cathode tsiri da shafi, halakarwa effects, da ainihin binne karfe bututun gudu mafi kyau kariya m zaba cathodic kariya shafi (3PE shafi, da m Fusion bonded epoxy foda) kashe dalilan daraja bincikowa. Game da mafi kyawun damar kariya. Matsakaicin yuwuwar lankwasa na yanzu a cikin malaman ƙasashen waje suna nazarin lalata da yanayin kariyar katodik, matsanancin ɓatawar halayen hydrogen na-1.15V. Bisa ga binciken Malaysia, Lloyd's Register, Shell yana ba da iyakar kariya ta-1.1V iyaka ɗaukar-1.15V; Jamus misali DIN30676-19853.1 karanta kamar haka: a cikin bakin ciki shafi (<1mm) lokacin farin ciki da aka yi amfani da lalata kariya yanayin, saboda polarization zai yi m tasiri kamar blisters kafa, domin rage girman tasiri, ya kamata iyakance. iyawar yuwuwar kariyar azaman aikin sutura, kamar matsakaicin yuwuwar kariya ta -1.00 ~~-1.20V (dangi CSE) . Ƙasashen waje, musamman da aka ambata yuwuwar dalilin rashin nasarar rufin ta wasu dalilai masu yawa, ciki har da abun da ke ciki na ƙasa, zafi, zafin jiki, nau'in sutura, ingancin sutura da ƙananan ƙwayoyin cuta, tsarin masana'antu.ralAn yi la'akari da shi don kauce wa yuwuwar wutar lantarki da aka rasa -1.05 ~ - 1.10V (CSE) (Lura: yawan amfani da fusion bonded epoxy foda shafi). Cathodic kariya shafi gubar (3PE shafi kasa kashe inji na Fusion bonded epoxy foda shafi).

Nau'in sutura, zafi, zafin jiki yana ƙayyade suturar shayar da ruwa, juriya ga ikon shiga shiga cikin aiki na kauri da shafi a ƙarƙashin yanayi guda. Bincike ya nuna cewa resin epoxy mai haɗe-haɗe zai samar da wani adadin tashoshi na pore da pore don kwayoyin ruwa a cikin guduro epoxy. Magani isa shafi / karfe dubawa, daga cikin rami a cikin lalata samfurin film generated a dubawa tare da karfe dauki, wannan Layer na lalata samfurin fim don hana dauki na karfe da kuma bayani, da shafi juriya rage a hankali. Tare da ƙari da ƙari masu lalata ions sun isa wurin dubawa, wannan Layer na fim ɗin samfurin lalata yana lalacewa a hankali, lalata ya ƙaru, kuma yana haifar da murfin epoxy da aka cire daga drum. Fusion bonded epoxy foda coatings warke har yanzu mai arziki a cikin ether da hydroxyl kungiyoyin, wadannan aiki kungiyoyin da bututu surface da tabbaci bonded tare da sinadaran bond don samar da anti-lalata shafi. Cika bakin murfin, mai yawa, dalilai na pinhole, suturar su ne nau'i daban-daban na sha ruwa da haɓaka, idan kariyar cathodic ya wuce kima, wanda ya haifar da juyin halittar hydrogen na cathodic, tare da kwayoyin hydrogen masu aiki na tarawa, zuwa wani matsayi. , Hydrogen zai ether da hydroxyl dauki, game da shi ya raunana bond ƙarfi na shafi da karfe bututu, sakamakon a cikin bacewar bond ƙarfi. Sakamakon shi ne cewa an rufe murfin daga bututun karfe.