Menene ke haifar da alluran jan ƙarfe don lalata?

1. Lalacewar yanayi: lalacewar yanayi na kayan ƙarfe ya dogara ne akan tururin ruwa a cikin yanayi da kuma fim ɗin ruwa a saman kayan. Ana kiran yanayin yanayin yanayin zafi mai tsananin zafi lokacin da lalata yanayin ƙarfe ya fara ƙaruwa sosai. A m zafi najan karfegami da sauran karafa da yawa tsakanin 50% da 70%. Gurɓataccen yanayi yana da tasiri mai mahimmanci na haɓakawa a kan lalatawar ƙarfe na jan karfe. Rushewar shuka da iskar gas na masana'anta, ammonia da iskar hydrogen sulfide a cikin yanayi, ammoniya suna hanzarta lalata tagulla da gami da jan ƙarfe, musamman lalatawar damuwa. C02, SO2, NO2 da sauran gurɓataccen acidic a cikin yanayin masana'antu na birane sun narke a cikin fim ɗin ruwa da hydrolyze, yin fim ɗin ruwa acidified kuma fim ɗin kariya ba shi da tabbas.
2. Fashewa yankin lalata: da lalata hali na jan karfe gami a fantsama yankin na ruwan teku yana kusa da cewa a cikin teku yanayi. Duk wani gami da jan ƙarfe mai kyau da juriya mai kyau ga yanayin yanayin ruwa shima zai sami juriya mai kyau na lalatawa a yankin fantsama. Yankin spatter yana ba da isassun iskar oxygen don hanzarta lalata ƙarfe, amma yana sa jan ƙarfe da jan ƙarfe na jan ƙarfe ya zama mafi sauƙi su kasance cikin duhu. Adadin lalatawar gami da jan karfe da aka fallasa zuwa yankin fantsama yawanci baya wuce 5μm/a.
3. Stress lalata: kakar crack na tagulla ne na hali wakilin danniya lalata na jan karfe gami. Tsage-tsage na lokaci, da aka gano a farkon karni na 20, tsaga ne a cikin ɓangaren sama na kwandon harsashi wanda ke ruɗewa zuwa kan yaƙi. Wannan al’amari yakan faru ne a wurare masu zafi, musamman a lokutan damina, don haka ake kiran sunan sahun lokaci. Domin yana da alaƙa da ammoniya ko ammoniya, ana kuma kiranta da ammonia crack. A gaskiya ma, kasancewar iskar oxygen da sauran oxidants, da kasancewar ruwa kuma sune mahimman yanayi don damuwa da lalata tagulla.
4. Bazuwar lalata: Brass dezinc yana daya daga cikin mafi yawan al'ada tagulla gami da lalata lalata, ana iya tare da tsarin lalatawar damuwa a lokaci guda, kuma yana iya faruwa shi kaɗai. Akwai nau'i nau'i biyu na dezincification: ɗaya shine nau'in zubar da lamellar, yana nuna nau'in lalata iri ɗaya, ƙananan lahani ga amfani da kayan. Sauran shine nau'in haɓaka mai zurfi-kamar nau'in haɓakawa, a cikin nau'i na lalata ramin, don haka ƙarfin kayan ya ragu sosai, babban lahani.
5. Lalacewar muhallin ruwa: lalata gami da jan ƙarfe a cikin yanayin ruwa ban da yanayin tekun, akwai yankin ruwan teku da ke fantsama, kewayon magudanar ruwa da cikakken yankin nutsewa.