O u'amea lamolemole e maua i le tele o togi, e fa'ainisinia ta'itasi e ofoina atu fa'atinoga fa'apitoa. I totonu oi latou,440C uamea u'ameatu matilatila amaualuga-carbon, maualuga-chromium martensitic sila uamealauiloa mo lonama'a'a sili ona lelei, tete'e o le ofuina, ma le fa'a'ele'ele. E fa'aaogaina lautele i talosaga maualuga-fa'atinoga lea e taua tele le fa'atumauina o mata, malosi, ma le tumau.
Matou te suʻesuʻeina leuiga, mea fa'ainisinia, ma fa'aoga masanio 440C uamea stainless. Pe e te a'afia i fale gaosi oloa, gaosiga, meafaigaluega, po'o le gaosiga o masini fa'afoma'i, o lenei tusiga o le a maua ai fa'amatalaga taua i le mafua'aga o le 440C stainless steel o se filifiliga ta'uta'ua mo le mana'omia o talosaga.
At sakysteel, matou te faʻapitoa i le tuʻuina atu o uʻamea 440C sili ona lelei i ituaiga eseese ma lapopoa, faʻafeiloaʻi manaʻoga o pisinisi i le lalolagi atoa. Fa'afeso'ota'isakysteelmo lagolago fa'apitoa, su'esu'ega fa'atuatuaina, ma fofo fa'atatau meafaitino.
1. O le a le 440C Stainless Steel?
440C uamea u'ameao le au'amea uamea uamea martensiticma tulaga maualuga okaponi ma le chromium. O se vaega o le 400 fa'asologa ma o le vasega aupito sili ona fa'afefete i totonu o le 440 u'amea u'amea (440A, 440B, ma le 440C).
Tulaga masani ole 440C:
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kaponi (C): 0.95% – 1.20%
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Chromium (Cr): 16.0% – 18.0%
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Manganese (Mn): ≤ 1.0%
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Siliko (Si): ≤ 1.0%
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Molybdenum (Mo): Filifili i nisi fa'aliliuga mo le fa'aopoopoina o le faigata
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Nikeli (Ni): Su'ega aofaiga
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Uamea (Fe): Paleni
O lenei tuufaatasiga e mafai ai ona oʻo i le 440Cmaualuga ma'a'a (e o'o i le 60 HRC)pe a vevela-togafitiga, aʻo tuʻuina atu pea le faʻafefeteina lelei.
2. Uiga Autu ole 440C Stainless Steel
a) Malosi maualuga ma Malosi
Pe a lelei le vevela, e mafai ona ausia le 440CRockwell maualuga maualuga i le va o le 58 i le 60 HRC, ma avea ai ma se tasi o u'amea sili ona faigata e maua. O lenei mea e talafeagai mo:
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Mea faigaluega tipi
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Vaega tauave
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Vaega sa'o
e) Lelei La'ei ma Abrasion Tetee
Ona o le maualuga o le carbon content,440Cfa'aalimata'ina le tete'e atu i la'ei, fa'aletonu pito, ma le vaivai fa'ainisinia - lelei mo le fa'ase'e po'o le feliuliua'i.
i) Tete'e Lelei a'e
E ui lava e le'o fa'a'a'amea e pei o 300 fa'asologa o u'amea u'amea, 440C e fa'atino lelei i si'osi'omaga malu ma feololo. E mafai ona tetee:
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Susū
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Mea'ai acids
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Vailaau vaivai
Peitaʻi, e iaie le fautuainamo le gataifale po'o le maualuga-chloride fa'aoga e aunoa ma se togafitiga talafeagai i luga.
o) Maneta ma vevela-Treatable
440C emanetai tulaga uma ma e mafaifaamaaaina e ala i togafitiga vevela masani, fa'afaigofie ona fetuutuuna'i mo fa'aoga fa'ainisinia ma fa'atulagaina.
3. Meatotino Fa'ainisinia o le 440C
| Meatotino | Taua (Toe masani, Tulaga Fa'ama'a) |
|---|---|
| Malosi Tetele | 760 – 1970 MPa |
| Malosi e maua | 450 – 1860 MPa |
| Fa'aumi i le Vaeluaga | 10 – 15% |
| Malosi (Rockwell HRC) | 58 – 60 |
| Modulus o Elasticity | ~200 GPa |
| Malosi | 7.8 g/cm³ |
O nei tau e mafai ona fesuisuiaʻi e faʻatatau i togafitiga vevela ma le gaosiga o gaosiga.
4. Fa'agasologa Togafitiga vevela
O le faatinoga o le 440C stainless steel omatua fa'aleleia e ala i le vevela. O le faagasologa masani e aofia ai:
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Fa'amaaa: Fa'avevela ile 1010–1065°C (1850–1950°F)
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Tinei: Suauu po o le ea tineia e faamaaa ai mea
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Fa'aitaina: E masani ona fa'afefe i le 150–370°C (300–700°F) e fa'aitiitia ai le pala ma fa'ateleina ai le ma'a'a.
Fa'aaliga 440C fa'afefeteinamaualuga le maaa ma sili atu le malosi faʻainisinia, e taua tele mo meafaigaluega saʻo ma pito tipi.
5. Talosaga masani o le 440C Stainless Steel
Ona o lona paleni tulaga ese o le maaa, ofuina le teteʻe, ma le faʻafefete faʻafefete, 440C o loʻo maua i le tele o ituaiga o talosaga faigata:
a) Mea faigaluega tipi
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Lau tipitipi
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Fugalaau
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Nafi fa'apisinisi
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Seulu
e) Bearings ma Valve Vaega
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Uiga polo
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Nofo nofoa ma ogalaau
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Pa'u ta'avale nila
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Pivot pine
i) Aerospace ma Puipuiga
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Va'alele actuator vaega
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Fa'a pine
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A'upega ma vaega o fana
o) Mea Fa'afoma'i
O le biocompatibility a le 440C ma le mafai ona tausia pito ma'ai e talafeagai mo:
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Meafaigaluega nifo
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Mea faigaluega ta'oto
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Toto'i fa'ama'i (e le tumau)
u) Alamanuia Limu ma Pepe
O lona tetee i le ofuina e talafeagai mo:
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Palasitika tui tui
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Fausia mate
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Vaega o meafaigaluega
sakysteelofoina 440C uʻamea uʻamea i laupepa, ipu, tootoo, ma pa mo nei ma isi talosaga. Faatasi ai ma le suʻesuʻeina atoatoa ma le faʻamautinoaga lelei,sakysteelfa'amautinoa le maualuga o le fa'atinoga mo galuega tetele.
6. Tapulaa o le 440C Stainless Steel
E ui o le 440C o se mea e maualuga le faatinoga, e le fetaui mo tulaga uma:
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E fa'atapula'aina le fa'aleagai si'osi'omaga o le gataifale po'o le chloride
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Malosi maualalofa'atusatusa i togi austenitic
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E mafai ona ma'a'ei le maaa tele se'i vagana ua fa'aeteete
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E mafai ona faigata le masinii se tulaga malo
Mo fa'aoga e mana'omia ai le fa'amama maualuga po'o le fa'a'ele'ele, 316 po'o u'amea fa'alua e ono sili atu ona lelei.
7. Filifiliga Fa'auma Laupapa
440C u'amea u'amea e mafai ona tu'uina atu i luga o fa'auma eseese, fa'atatau i mana'oga fa'ai'uga:
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Fa'amauina: Mo masini faigofie ma fau a'o le'i faamaaaina
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Fa'aele'ele pe fa'aiila: Mo le fa'alelei po'o le fa'atinoina lelei
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Fa'ama'a'a ma ita: Mo meafaigaluega ma faʻaoga faʻaoga
At sakysteel, matou te sauniafa'auma fa'auma fa'apitoa ma fuamo 440C u'amea uamea e fetaui ma manaoga o tagata o tausia.
8. 440C vs isi uamea uamea
| Vasega | Malosi | Tete'e a'e | Talosaga |
|---|---|---|---|
| 304 | Maulalo | Lelei | Fa'aoga masani fa'avae |
| 316 | Maulalo | Sili | Gataifale, mea'ai, falema'i |
| 410 | feololo | feololo | Meafaigaluega fa'avae, fa'amau |
| 440C | Maualuga | feololo | Meafaigaluega sa'o, bearings |
440C o lesili ona faigatama le telefa'alavalavafaatasi ai ma nei mea, e ui ina la'ititi la'ititi le tete'eina o le pala.
Fa'ai'uga
440C uamea u'ameao se filifiliga pito i luga pe ama'a'a tulaga ese, tete'e o le ofuina, ma le fa'afefeteina feololoe mana'omia. E faʻaaogaina lautele i alamanuia e amata mai i le aerospace ma taʻavale i fomaʻi ma meafaigaluega. O lona agava'a e fa'ama'a'a i tulaga maualuga a'o fa'atumauina le puipuiga o le a'a talafeagai e avea ai ma se tasi o mea siliu'amea fa'atauva'a martensiticavanoa.
O le malamalama i ona uiga e mafai ai e inisinia ma tagata faʻatau ona faia filifiliga sili ona lelei mo le umi, faʻatinoga maualuga.
Mo le maualuga 440C uʻamea uʻamea ma faʻamaonia atoatoa ma auaunaga faʻaopoopo faʻatau e pei o le tipiina o aganuʻu, faʻalelei, ma togafitiga vevela,sakysteelo lau kamupani fa'atuatuaina. Fa'afeso'ota'isakysteeli le asō e maua ai se upusii pe talanoa i au galuega manaʻomia.
Taimi meli: Iul-28-2025