O le a le uamea?
O le u'amea o se fa'afefiloi o le Uamea ma o le elemene autu (autu) fa'afefiloi o le Carbon. Ae ui i lea, o loʻo i ai ni tuusaunoaga i lenei faʻamatalaga e pei o uʻamea interstitial-free (IF) ma ituaiga 409 ferritic stainless steels, lea e manatu ai le carbon o se mea le mama.
O le a le Alloy?
Pe a faʻafefiloi elemene eseese i ni aofaʻi laiti i totonu o le elemene faavae, o le mea e maua mai e taʻua o se uʻamea o le elemene faavae. O le mea lea o le uamea o se u'amea o le uamea ona o le uamea o le elemene faavae (mea autu) i le uamea ma o le elemene faʻafefiloi autu o le Carbon. O isi elemene e pei o le Manganese, Silicon, Nickel, Chromium, Molybdenum, Vanadium, Titanium, Niobium, Aluminum, ma isi mea faapena ua faaopoopo foi i aofaiga eseese e maua ai togi eseese (po o ituaiga) o Uamea.
Jindalai (Shandong) Steel Group Co., Ltd. o se tagata tomai faapitoa ma taʻutaʻua le faʻatauina o paʻu uʻamea ma uʻamea uʻamea / paipa / coils / papatusi. Auina atu lau suʻesuʻega ma o le a matou fiafia e faʻatalanoa oe faʻapitoa.
O a Ituaiga Uamea Eseese?
Faʻavae i luga o vailaʻau vailaʻau, e mafai ona faʻavasegaina le uamea i le fa (04) ituaiga faʻavae:
● Uamea Carbon
● Uamea uamea
● Uamea uamea
● Uamea Meafaigaluega
1. Uamea Carbon:
Uamea carbon o le uamea sili ona faʻaaogaina i alamanuia ma e sili atu i le 90% o le aofaʻi o le gaosiga o le uamea. Faʻavae i luga o le carbon content, ua faʻavasegaina sili carbon steels i vaega e tolu.
● Umea Maualalo Kabonu/Uamea Malu
● Medium Carbon Steel
● Uamea High Carbon
O lo'o tu'uina atu i le laulau o lo'o i lalo:
| Leai. | Ituaiga uamea carbon | Pasene o Carbon |
| 1 | Uamea Kaponi Maualalo/Uamea malu | E oo atu ile 0.25% |
| 2 | Medium Carbon Steel | 0.25% i le 0.60% |
| 3 | Uamea High Carbon | 0.60% i le 1.5% |
2. Uamea uamea:
u'amea uamea o se u'amea uamea e aofia ai le 10.5% Chromium (Laiti). u'amea u'amea fa'aalia mea e tete'e ai le pala, ona o le fa'atupuina o se vaega manifinifi o le Cr2O3 i luga. E ta'ua fo'i lea vaega o le pa'aga pa'u. O le fa'ateleina o le aofa'i o Chromium o le a fa'ateleina ai le fa'a'ele'ele o mea. E le gata i le Chromium, Nickel ma le Molybdenum e faʻaopoopoina e tuʻuina atu mea manaʻomia (pe faʻaleleia). E iai fo'i le u'amea u'amea 'ese'ese aofa'i o Carbon, Silicon, ma Manganese.
u'amea uamea ua fa'avasegaina atili;
1. Uamea u'amea Ferritic
2. u'amea u'amea Martensitic
3. Austenitic Stainless Steels
4. u'amea uamea fa'ama'i
5. Uamea Fa'ama'a'a (PH).
● u'amea u'amea Ferritic: O u'amea u'amea e aofia ai u'amea-Chromium u'amea fa'atasi ma fausaga tioata kupita fa'atotonugalemu (BCC). O nei mea e masani ona fa'amaneta ma e le mafai ona fa'ama'a'a e ala ile fa'avevelaina ae mafai ona fa'amalosia ile galue malulu.
● Austenitic Stainless Steel: Austenitic sila e sili ona pala. E le fa'amaneta ma e le mafai ona fa'avevela. E masani lava, austenitic uamea e sili ona uelo.
● Martensitic Stainless Steel: Martensitic uʻamea uʻamea e matua malosi ma faigata ae e le mafai ona pala e pei o isi vasega e lua. O u'amea nei e sili ona mafai ona fa'aogaina, fa'amaneta, ma fa'afefeteina.
● Duplex Stainless Steels: Duplex uamea uamea e aofia ai se microstructure lua-vaega e aofia ai fatu o ferritic ma austenitic uamea (ie Ferrite + Austenite). u'amea Duplex e tusa ma le fa'aluaina le malosi nai lo austenitic po'o ferritic u'amea.
● Uamea fa'ama'a'a (PH) Fa'ama'a'a: Fa'ama'a-Ma'a'a (PH) Ua maua le Uila Fa'ama'a'a Tele ona o le fa'ama'a'aina o timuga.
3. Uamea uamea
I le uʻamea uʻamea, o loʻo faʻaaogaina vaega eseese o elemene faʻafefiloi, e ausia ai mea e manaʻomia (faʻaleleia) e pei o le weldability, ductility, machinability, malosi, hardenability ma corrosion resistance, ma isi.
● Manganese - Faʻateleina le malosi ma le maʻaʻa, faʻaititia le ductility ma weldability.
● Silicon - Faʻaaogaina e pei o deoxidizers faʻaaogaina i le faiga o le sila.
● Phosphorus – Fa'ateleina le malosi ma le ma'a'a ma fa'aititia ai le ductility ma le notch a'afiaga faigata o le sila.
● Sulfur – Fa'aitiitia le ductility, le malosi o le a'afiaga, ma le uelo. Maua i le tulaga o sulfide inclusions.
● Kopa - faʻaleleia atili le faʻafefe.
● Nickel - Faʻateleina le faʻamaʻaʻaina ma le malosi o le aʻafiaga o uʻamea.
● Molybdenum - Faʻateleina le faʻamaʻaʻaina ma faʻaleleia ai le fetolofi o uʻamea maualalo.
4. Uamea Meafaigaluega
O u'amea meafaigaluega e maualuga le kaponi (0.5% i le 1.5%). Ole maualuga ole kaponi e maua ai le malosi ma le malosi. O u'amea nei e masani ona fa'aaogaina e fai ai meafaigaluega ma pe. Meafaigaluega uʻamea o loʻo i ai le tele o tungsten, cobalt, molybdenum, ma le vanadium e faʻateleina ai le vevela ma le ofuina o le teteʻe, ma le umi o le uʻamea. O le mea lea e matua'i lelei ai u'amea meafaigaluega mo le fa'aogaina o meafaigaluega tipi ma viliina.
Jindalai Steel Group o lo'o fa'atumauina atoatoa ma fa'amaumauga sili o oloa u'amea i totonu o le alamanuia. E mafai e Jindalai ona fesoasoani ia te oe e filifili mea uamea talafeagai ina ia mautinoa e te maua vave mea e te manaʻomia pe a oʻo i le taimi e faʻatau ai. Afai o lo'o fa'atau mai mea u'amea i lou lumana'i lata mai, talosagaina se fa'amatalaga. Matou te tu'uina atu se tasi e te maua tonu oloa e te mana'omia vave.
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Taimi meli: Tes-19-2022