Nɛgɛ min tɛ sɔgɔ, o ye kɛrɛnkɛrɛnnen ye bawo a bɛ nɔgɔ ni tiɲɛni kɛlɛ cogo saba la. A bɛ ni lakanani pasif layer ye, a bɛ ni alloying elements barikamaw ye, ani surface features kɛrɛnkɛrɛnnenw. Layɛrɛ pasif (passive layer) fanba ye chrome oxide ye. O layini bɛ nɛgɛ datugu ani ka ji ni fiɲɛ bali. O barika bɛ nɔgɔ sɔrɔli hakɛ dɔgɔya. A bɛ nɛgɛ dɛmɛ ka barika sɔrɔ waati jan kɔnɔ. Nikilɛri ni molibdɛni ye fɛnw ye minnu bɛ ɲɔgɔn falen. U bɛ dilan
nɛgɛ min tɛ sɔgɔ, o bɛ mɛn yɔrɔ gɛlɛnw na. Yɔrɔ nɔgɔlenw ni saniya nɔgɔya bɛ dɛmɛ
nɛgɛ min tɛ sɔgɔ, o bɛ tiɲɛni kɛlɛ. O fɛnw fana b’a dɛmɛ a ka to a ka yeelen na.
An ka Sosiyete bɛ baara kɛ ni o nafolo ninnu ye walasa ka nɛgɛ fura barikamaw di.
Layɛrɛ pasif bɛ dɛmɛ ka sɔgɔsɔgɔninjɛ dabila.
O layini in bɛ baara kɛ i n’a fɔ kala min bɛ ji ni fiɲɛ kɛlɛ.
A bɛ baara kɛ ka ɲɛ cogo min na, o bɛ bɔ ladonni na ani a bɛ kɛ yɔrɔ min na.
Takeaways (Takeaways) kunbabaw
Nɛgɛ min tɛ sɔgɔ, o bɛ nɔgɔ dabila ni fɛn kɛrɛnkɛrɛnnen ye min bɛ ji ni fiɲɛ bali ka don.
Ni aw bɛ a saniya tuma caman na ni safinɛ nɔgɔman ye ani finimugu nɔgɔlen ye, o bɛ to ka nin layini in barika bonya ani ka nɔgɔ dabila.
Nikilɛri ni molibdɛni bɛ nɛgɛ inox barika bonya ani k’a dɛmɛ ka nɔgɔ kɛlɛ, hali yɔrɔ gɛlɛnw na.
Ka nɛgɛ inox hakɛ ɲuman ta, o nafa ka bon kosɛbɛ baara kelen-kelen bɛɛ la walasa a ka mɛn ani ka baara kɛ ka ɲɛ.
Yɔrɔ nɔgɔlenw bɛ dɛmɛ ka nɔgɔ dabila barisa ji ni kemikɛlifɛnw tɛ se ka nɛgɛ tɔɔrɔ nɔgɔya la ten.
Chrome & Layer Passif (Kɔrɔmu & Layer Passif) ye
Inox & Chrome, Bamako, Mali
Chrome bɛ nɛgɛ inox dɛmɛ ka nɔgɔ bali. Ni chrome ɲagamina nɛgɛ la, o bɛ nɛgɛ kɛcogo Changer. Nɛgɛ min tɛ sɔgɔ, o mago bɛ chrome 10,5% la a dɔgɔyalenba la walasa ka nɔgɔ kɛlɛ. A suguya fanba bɛ ni kolosinsinnan ye ka tɛmɛ o kan yɛrɛ. Kɔrɔmu caman bɛ nɛgɛ dɛmɛ ka tiɲɛniw kɛlɛ minnu bɛ sɔrɔ kemikɛlifɛnw ni fiɲɛ fɛ. Ni chrome jigira ka tɛmɛ 12% kan, nɛgɛ bɛ bɔnɛ a ka kala la. Nɔgɔ bɛ se ka daminɛ, wa nɛgɛ tɛ se ka kɛ lakanalan barikama ye.
Nɛgɛ min tɛ sɔgɔ, o mago bɛ chrome 10,5% la a dɔgɔyalenba la walasa ka wele ko nɛgɛ min tɛ sɔgɔ.
Kɔrɔmu caman sɔrɔli kɔrɔ ye ka mɔgɔ tanga ka ɲɛ kemikɛlifɛnw ni fiɲɛ fɛ.
Surface tɛ lakanani sɔrɔ ni chrome ka dɔgɔn ni 12% ye.
Kɔrɔmu min bɛ 12–15% duguma, o bɛ se ka kɛ sababu ye ka nɔgɔ bila sumanw ni ɲɔgɔn cɛ.
Film Pasif (Film Passif) ka dilancogo
Kɔrɔmu min bɛ nɛgɛ min tɛ sɔgɔ, o bɛ ɲɔgɔn sɔrɔ ni oksizɛni ye min bɛ bɔ fiɲɛ na. O bɛ kɛ sababu ye ka ɔkisizɛni (oxyde de chrome) kɛ fɛn finman ni jɛlen ye a sanfɛ. Filimu pasif bɛ baara kɛ i n’a fɔ kala. A bɛ ji, fiɲɛ ani fɛn jugu wɛrɛw bali ka maga nɛgɛ la. Nin kala in bɛ nɛgɛ inox dɛmɛ ka nɔgɔ kɛlɛ. Filimu in ka bon ani a barika ka bon cogo min na, o bɛ bɔ a yɔrɔ la. Yɔrɔ minnu tɛ asidi ye, filimu bɛ to ka barika sɔrɔ ani ka nɛgɛ lakana. Asidi bɛ yɔrɔ minnu na, filimu bɛ se ka barika dɔgɔya, wa nɔgɔ bɛ se ka daminɛ.
Filimu pasif bɛ se k’a yɛrɛ labɛn ni a sɔgɔra, o la nɛgɛ bɛ to lakana la.
Lakanali dantigɛliw
Layer passif min bɛ nɛgɛ inox kan, o bɛ baara kɛ yɔrɔ caman na. Nka fɛn dɔw bɛ se ka o kala kari. Kɔgɔ ni kɔgɔji ji la, kuloridi ionw bɛ se ka filimu pasif (passive film) tɔɔrɔ. O bɛ kɛ sababu ye ka dingɛ misɛnninw ni nɔgɔ jugumanba bila mɔgɔ la. Basi barikamaw ni ji caman fana bɛ kɛ sababu ye ka kala barika dɔgɔya. Fiɲɛ nɔgɔlen bɛ se ka kɛ sababu ye ka nɔgɔ kɛ joona. Ni kala karilen don, nɛgɛ fanga tɛ ban ka nɔgɔ ni tiɲɛni kɛlɛ.
Kloridi ionw bɛ kɛ sababu ye ka kala kari joona.
Ji caman, kɔgɔ ani fiɲɛ nɔgɔlen ye gɛlɛyabaw ye nɛgɛ min tɛ sɔgɔ.
Elements (Elements de Alliage) ye
Nickel ka jɔyɔrɔ
Nikilɛri bɛ nɛgɛ inox dɛmɛ ka nɔgɔ kɛlɛ ka ɲɛ. Ni nikɛri farala a kan, a bɛ kɛ sababu ye ka kɛ fɛn ye min tɛ se ka kɛ. O layini bɛ nɛgɛ tanga nɔgɔ ni tiɲɛni ma. Nikilɛri fana bɛ dɛmɛ ka dingɛ misɛnninw bali. O dingɛw bɛ se ka bɔ kemikɛli barikamaw la. Hali ni nikɛri dɔɔni, i n’a fɔ 3%, o bɛ dɛmɛ kosɛbɛ. Nikili bɛ a to nɛgɛ min tɛ sɔgɔ, o ka to barika la yɔrɔ caman na. A fana bɛ dɔ bɔ nɛgɛ bɛ nɔgɔ teliya cogo min na. O bɛ baara Kɛ ni surface (yɔrɔ) bɛ Kɛ walima ni a tɛ Kɛ. O de y’a to nikɛri nafa ka bon nɛgɛ caman na minnu tɛ sɔgɔ.
Molibdɛni Nafa minnu bɛ a la
Molibdɛni bɛ dɛmɛ wɛrɛ di nɛgɛ ma min tɛ sɔgɔ. Kɔgɔ walima kulori caman bɛ yɔrɔ min na, a nafa ka bon kosɛbɛ. Molibdɛni bɛ dɛmɛ ka filimu pasif bali ka kari. A fana bɛ dɔ bɔ nɛgɛ bɛ sɛgɛn teliya la cogo min na. Waati tɛmɛnen kɔfɛ, molibdɛni bɛ caya a sanfɛla la. O b’a to nɛgɛ ka fisa yɛrɛ ka nɔgɔ kɛlɛ. Tablo min bɛ duguma, o bɛ molibdɛni bɛ min kɛ:
Fɛɛrɛ min bɛ Kɛ |
Cogojirali |
Filimu pasif (Filimu) tiɲɛni kunbɛnni |
Molibdɛni bɛ dɛmɛ ka ɔkisizɛni filimuw tiɲɛni bali, ka dɔ fara dingɛw kɛlɛli kan kuloridi sigidaw la. |
Nɛgɛdaga min bɛ baara kɛ, o dɔgɔyali |
Molibdɛni bɛ nɛgɛ baarakɛta ka wuli hakɛ dɔgɔya sigida sɔgɔli waati, o bɛ dɛmɛ don ka segin-ka-bɔ. |
Surface Enrichment (Sɔrɔdasi Nafabɔ). |
Molibdɛni bɛ dugukolo sanfɛla nafa jira waati kɔnɔ, o bɛ kɛ sababu ye ka sɔgɔsɔgɔninjɛ kunbɛncogo ɲɛ. |
Nikilɛri ni molibdɛni faralen ɲɔgɔn kan, o bɛ kɛ sababu ye ka nɛgɛ min tɛ sɔgɔ, o bɛ mɛn. U b’a dɛmɛ ka barika sɔrɔ yɔrɔ gɛlɛnw na.
Corrosion Resistance Grades (Jɛkulu minnu bɛ se ka sɔgɔsɔgɔ).
Nɛgɛ min tɛ sɔgɔ, o bɛ sɔrɔ suguya wɛrɛw la. Sugu kelen-kelen bɛɛ bɛ nɔgɔ kɛlɛ a yɛrɛ cogo la. Tablo min bɛ duguma, o bɛ kalata saba suma ɲɔgɔn na minnu bɛ sɔrɔ ɲɔgɔn fɛ:
Grade ka nɛgɛ inox |
Nivo de résistance à la corrosion (Sɔgɔli kunbɛncogo). |
Fɛn kolomaw |
304 |
Ka bɛrɛbɛn |
A ka ɲi ka kɛ fɛn bɛɛ ye, a tɛ se ka asidi ni kuloridi jugumanw kɛlɛ kosɛbɛ |
316 |
Jamanjan |
A ka fisa ka pitting ni crevice corrosion kɛlɛ, a bɛnnen don kɔgɔjida la |
316L |
A ka bon kosɛbɛ |
Nɔgɔli kunbɛnni fanga bonya, min ka ɲi kosɛbɛ kemikɛli sigida juguw kama |
Sugu wɛrɛw, i n’a fɔ feritiki ni martɛnsitiki, baara kɛrɛnkɛrɛnnenw bɛ u la. Feriti inox bɛ kɛ mobili labɛnni na ani dumunikɛminɛnw na. Martensitic suguyaw ka ɲi muruw ni jibolisiraw ma. Aw ka kan ka suguya bɛnnen sugandi a bɛna kɛ yɔrɔ min na. Grade minnu bɛ ni alloy caman ye, olu musaka bɛ se ka caya a daminɛ na. Nka u bɛ mɛn ka tɛmɛ, wa u mago tɛ labɛnni na kosɛbɛ yɔrɔ gɛlɛnw na.
Surface Properties (yɔrɔ) minnu bɛ yen
Surfaces (yɔrɔ minnu bɛ sɔgɔsɔgɔ).
Yɔrɔ nɔgɔlenw bɛ nɛgɛ inox dɛmɛ ka nɔgɔ kɛlɛ. Ni nɛgɛ in sɔgɔra, a tɛ gɛlɛya kosɛbɛ. O bɛ gɛlɛya don fɛnw ma i n’a fɔ ji walima kemikɛlifɛnw ka binkanni kɛ. Dingɛw ni faraw dɔgɔyali kɔrɔ ye ko nɔgɔ bɛ daminɛ yɔrɔ caman na. Ni finimugu nɔgɔlen don, o bɛ dɛmɛ ka kɛ sababu ye ka layɛrɛ pasif kɛ ka kɛ kelen ye. Nɛgɛ min tɛ sɔgɔ ni fini ɲuman ye, o saniya ka nɔgɔn. A tɛ nɔgɔ walima kemikɛlifɛnw minɛ ka caya.
Fɛn minnu bɛ kɛ ka nɔgɔya, olu bɛ pitting corrosion (pitting corrosion) cogoya dɔgɔya.
Yɔrɔ minnu jɛlen don, olu bɛ faraw sɔgɔli kɛlɛ ka ɲɛ ka tɛmɛ yɔrɔ gɛlɛnw kan.
Inox min bɛ kɛ ni kuran ye, o bɛ ni filimu pasif ye min ka fisa.
Ni yɔrɔ nɔgɔlen don, o bɛ nɛgɛ min tɛ sɔgɔ, o dɛmɛ a ka to ka manamana. A fana b’a dɛmɛ ka mɛn yɔrɔ gɛlɛnw na.
Saniya & Ladonni
Ni aw bɛ nɛgɛ min tɛ sɔgɔ, o saniya ani k’a ladon, o bɛ kɛ sababu ye ka pasif layer lakana. Ni aw bɛ to ka saniya, o bɛ nɔgɔ ni fɛn juguw bɔ. O bɛ filimu pasif dɛmɛ ka to barika la. Aw bɛ safinɛ nɔgɔlen ni burusi nɔgɔlen kɛ ka nɛgɛ nɔgɔlen saniya. Koli kɔfɛ, aw bɛ a ko ni ji sanuman ye. Aw bɛ a ja ni finimugu nɔgɔlen ye walasa ka ji nɔw ni nɔgɔw bali.
Aw bɛ nɔgɔ ko dɔɔni dɔɔni ni nilon burusi ye.
Aw bɛ safinɛ nɔgɔman walima safinɛ kɛ min tɛ mɔgɔ tɔɔrɔ.
Aw bɛ a ko ni ji sanuman ye.
Aw bɛ a ja ni finimugu nɔgɔlen ye.
Aw kana nɛgɛdaga walima kemikɛli gɛlɛnw kɛ. Ni aw magara nɛgɛ walima nɛgɛ la min bɛ wele ko carbone, o bɛ se ka kɛ sababu ye ka nɔgɔ bila mɔgɔ la. Ni aw ye gan saniyalenw don, o bɛ bolokɔniw ni taamasiɲɛw jɔ.
Tuma caman na, saniya bɛ nɛgɛ inox dɛmɛ ka nɔgɔ kɛlɛ. A bɛ a dɛmɛ fana ka mɛn, hali yɔrɔ gɛlɛnw na.
Farikolo tiɲɛni kunbɛncogo
Nɛgɛ min tɛ sɔgɔ, o barika ka bon ani a ka gɛlɛn. A bɛ se ka doni girinmanw ta k’a sɔrɔ a ma biri. A ka gɛlɛn nka a bɛ se ka biri k’a sɔrɔ a ma kari. O bɛ a to a ka gɛlɛn ka dent walima ka sɔgɔsɔgɔ.
Ta |
Tɔnɔ |
Sɛgɛsɛgɛli fanga ka bon |
A bɛ degunba ni degunba kunbɛn |
Ductilité (Ductilité) ye |
A bɛ biri nka a tɛ kari |
Gɛlɛya |
A bɛ surface tiɲɛni ni sɛgɛn kɛlɛ |
O fɛnw bɛ nɛgɛ min tɛ sɔgɔ, o kɛ fɛn ɲumanba ye yɔrɔw la minnu mago bɛ nɛgɛ barikama na min tɛ nɔgɔ. Ni a sɔgɔra walima ni a sɔgɔra, aw bɛ se k’a labɛn nɔgɔya la. Ni aw ye finimugu sɔgɔ walima ka baara kɛ ni finimugu nɔgɔlen ye, o bɛ se ka a kɛ i n’a fɔ a bɛ kɛ kura ye tuguni.
Nɛgɛ min tɛ sɔgɔ, o bɛ nɔgɔ ni tiɲɛni dabila cogoba saba fɛ. Layɛrɛ pasif bɛ Kɛ i n’a fɔ kala ani a b’a yɛrɛ Labɛn ni a sɔgɔra. Fɛn minnu bɛ kɛ ka fɛnw fara ɲɔgɔn kan i n’a fɔ chrome, nickel ani molibdène, olu b’a to a barika ka bon nɔgɔ ma. Yɔrɔ nɔgɔlenw ni saniya bɛ nɛgɛ dɛmɛ ka to ka manamana ani ka gɛlɛya. Tablo min bɛ duguma, o b’a jira cogo kelen-kelen bɛɛ bɛ baara kɛ cogo min na:
Fɛɛrɛ min bɛ Kɛ |
Nafa sɔrɔli nɔgɔ ni tiɲɛni kama |
Layer Passif (Layer) ye |
A bɛ kala dɔ dilan min bɛ nɔgɔ bali, ka sɔrɔ karɔbɔli nɛgɛ bɛ nɔgɔ joona. |
Yɛrɛdilancogo |
Kɔlɔsili bɛ kɛ tuguni ni a joginna, ni kolosinsinnan bɛ yen. |
Laminiko fɛnw |
Fɛn minnu bɛ i n’a fɔ kɔgɔ, asidi ani funteni, olu bɛ se ka kɛ sababu ye ka nɔgɔ kɛ joona. |
Ka nɛgɛ inox hakɛ bɛnnen ta, o nafa ka bon yɔrɔ kelen-kelen bɛɛ la. Grade minnu bɛ nɔgɔ kɛlɛ ka ɲɛ, olu ka fisa yɔrɔw la, kemikɛli, ji walima kɔgɔ bɛ yɔrɔ minnu na. Dumunikɛyɔrɔw mago bɛ nɛgɛ min tɛ sɔgɔ, min tɛ ɲɔgɔn sɔrɔ ni dumuni ye. Kemikɛli jiriw mago bɛ kalataw la minnu bɛ se ka ko gɛlɛnw kunbɛn. Ni aw ye grade jugu ta, aw bɛ se ka pitting, crevice, walima stress corrosion sɔrɔ.
Nɛgɛ min tɛ sɔgɔ, o bɛ nɔgɔ kosɛbɛ ka tɛmɛ nɛgɛ tɔw kan, hali ni a ka suma.
Nɛgɛ min tɛ sɔgɔ, o bɛ mɛn, wa a mago tɛ ladonni caman na. A ka ɲi dugukolo fana ma. Tablo min bɛ duguma, o bɛ nin hakilina ɲumanw jira:
Tɔnɔ |
Cogojirali |
A bɛ mɛn ka mɛn |
Sow minnu dilannen don ni nɛgɛ ye, olu bɛ mɛn siɲɛ fila ɲɔgɔn ka tɛmɛ nɛgɛso minnu dilannen don ni nɛgɛ ye, olu bɛ mɛn siɲɛ fila ɲɔgɔn. |
Ladonni wajibiyalenw dɔgɔya |
Aw man kan k’a labɛn kosɛbɛ, o la a ka ɲi mɔgɔw bɛ taa yɔrɔ minnu na. |
Kisɛya min bɛ kɛ ka ɲɛ |
A barika ka bon, o la aw bɛ se ka nɛgɛ dɔɔni kɛ ka fɛnw nɔgɔya fo ka se kɛmɛsarada la 30 ma. |
Mɛli |
Nɛgɛ min tɛ sɔgɔ, o bɛ se ka kɛ fɛn wɛrɛ ye, wa a bɛ dɛmɛ ka dugukolo saniya. |
Sariyaw bɛ mɔgɔw dɛmɛ ka nɛgɛ inox hakɛ bɛnnen sugandi baara kelen-kelen bɛɛ kama. O b’a to nɛgɛ bɛ baara kɛ ka ɲɛ ani ka mɛn. Nɛgɛ min tɛ sɔgɔ, o ye fɛn kɛrɛnkɛrɛnnen ye bawo a bɛ nɔgɔ kɛlɛ, a barika ka bon, wa a bɛ mɛn san caman kɔnɔ.
Ɲininkaliw
Mun de bɛ nɛgɛ min tɛ sɔgɔ, o ni nɛgɛ kɔrɔlen tɛ kelen ye?
Kɔrɔmu ni fɛn wɛrɛw bɛ sɔrɔ nɛgɛ min tɛ sɔgɔ. Olu bɛ lakanani-yɔrɔ dɔ Dabɔ min bɛ nɔgɔ bali. Nɛgɛ min bɛ kɛ tuma bɛɛ, o tɛ ni o kala ye, o la a bɛ nɔgɔ joona.
Yala nɛgɛ min tɛ sɔgɔ, o bɛ se ka nɔgɔ kɔgɔ walima yɔrɔ ɲiginnenw na wa?
Ɔwɔ, nɛgɛ min tɛ sɔgɔ, o bɛ se ka nɔgɔ kɔgɔ walima yɔrɔ ɲiginnenw na. Kɔlɔri minnu bɛ kɔgɔji la, olu bɛ se ka farikolo tangalan kari. Ni i ye kalata ɲuman sugandi, o bɛ dɛmɛ ka o gɛlɛya in bali.
Mɔgɔw ka kan ka nɛgɛ min tɛ sɔgɔ, o saniya cogo di walasa ka nɔgɔ bali?
Mɔgɔw ka kan ka safinɛ nɔgɔlen, ji, ani finimugu nɔgɔlen dɔ kɛ. U ka kan ka u yɛrɛ tanga nɛgɛmafɛnw ni saniyalan gɛlɛnw ma. Ni aw bɛ to ka saniya, o bɛ a to a tangalan ka sabati.
Mun na nɛgɛ inox suguya dɔw musaka ka ca?
Nikilɛri walima molibdɛni ka ca ni kalati minnu ye, olu musaka ka ca. O fɛnw bɛ nɛgɛ barika bonya ka bɔ nɔgɔ ni tiɲɛni na. Kalanso minnu ka bon, olu bɛ mɛn yɔrɔ gɛlɛnw na.
Yala nɛgɛ inox mago bɛ ladonni kɛrɛnkɛrɛnnen na sɔgɔsɔgɔninjɛ kɔfɛ wa?
Awɔ. Ni sɔgɔsɔgɔninjɛ bɛ se ka farikolo tangalan fanga dɔgɔya. Saniya ni polishing bɛ layini dɛmɛ a yɛrɛ ka dilan. O bɛ nɛgɛ barika bonya ani ka manamana.
