Yadda muke hana tsatsa akan faɗuwar karfen ragar guardrail sune kamar haka:
1. Canja tsarin ciki na karfe
Misali, kera gami daban-daban masu jure lalata, kamar ƙara chromium, nickel, da sauransu zuwa ƙarfe na yau da kullun don yin bakin karfe.
2. Hanyar Layer kariya
Rufe saman karfe tare da Layer na kariya yana ware samfurin ƙarfe daga matsakaicin lalata da ke kewaye don hana lalata.
(1) . Rufe saman ragamar ƙarfe da aka faɗaɗa da man inji, jelly na man fetur, fenti ko rufe shi da kayan da ba na ƙarfe ba masu juriya kamar enamel da filastik.
(2) . Yi amfani da electroplating, zafi plating, fesa plating da sauran hanyoyin da za a shafa saman farantin karfe da wani Layer na karfe wanda ba a sauƙi lalacewa, kamar zinc, tin, chromium, nickel, da dai sauransu. Wadannan karafa sukan samar da wani mai yawa oxide fim saboda oxidation, wanda ya hana ruwa da iska daga lalata karfe.
(3) . Yi amfani da hanyoyin sinadarai don samar da fim mai kyau da tsayayye akan saman karfe. Alal misali, an kafa fim ɗin baƙar fata mai kyau na ferric oxide a saman farantin karfe.
3. Hanyar kariya ta lantarki
Hanyar kariyar electrochemical tana amfani da ka'idar ƙwayoyin galvanic don kare karafa da ƙoƙarin kawar da halayen galvanic cell wanda ke haifar da lalata galvanic. Hanyoyin kariya na lantarki sun kasu kashi biyu: kariya ta anode da kariya ta cathodic. Hanyar da aka fi amfani da ita ita ce kariyar cathodic.
4. Magance kafofin watsa labarai masu lalata
Kawar da kafofin watsa labarai masu lalata, kamar su shafan kayan ƙarfe akai-akai, sanya kayan bushewa a cikin na'urori masu mahimmanci, da ƙara ƙaramin adadin masu hana lalata wanda zai iya rage ƙarancin lalata ga kafofin watsa labarai masu lalata.
5. Kariyar lantarki
1. Hanyar kariya ta anode hadaya: Wannan hanyar tana haɗa ƙarfe mai aiki (kamar zinc ko zinc alloy) zuwa ƙarfe don kariya. Lokacin da lalata galvanic ya faru, wannan ƙarfe mai aiki yana aiki azaman electrode mara kyau don ɗaukar halayen iskar shaka, ta haka ragewa ko hana Lalacewar ƙarfe mai kariya. Ana amfani da wannan hanya sau da yawa don kare tulin karfe da harsashi na jiragen ruwa a cikin ruwa, kamar kariya ga kofofin karfe a cikin ruwa. Yawancin nau'ikan zinc da yawa ana walda su a ƙasan layin ruwa na harsashi na jirgin ko kuma a kan maƙallan da ke kusa da farfasa don hana ƙwanƙwasa, da sauransu na lalata.
2. Hanyar kariya ta halin yanzu mai burgewa: Haɗa ƙarfen da za a kiyaye shi zuwa madaidaicin sandar wutar lantarki, kuma zaɓi wani yanki na kayan aikin inert don haɗawa da ingantaccen sandar wutar lantarki. Bayan samun kuzari, tara ƙananan caji (electrons) yana faruwa akan saman ƙarfe, don haka hana ƙarfe daga asarar electrons da cimma manufar kariya. Ana amfani da wannan hanya musamman don hana lalata kayan ƙarfe a cikin ƙasa, ruwan teku da ruwan kogi. Wata hanyar kariya ta electrochemical ana kiranta kariya ta anode, wanda shine tsari wanda aka yi amfani da anode a cikin wani yanki mai mahimmanci ta hanyar amfani da wutar lantarki ta waje. Yana iya toshewa yadda yakamata ko hana kayan ƙarfe daga lalacewa a cikin acid, alkalis da gishiri.
Lokacin aikawa: Fabrairu-22-2024