440C Uila Uila Uiga ma Fa'aoga

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:

  • kaponi (C): 0.95% – 1.20%

  • Chromium (Cr): 16.0% – 18.0%

  • Manganese (Mn): ≤ 1.0%

  • Siliko (Si): ≤ 1.0%

  • Molybdenum (Mo): Filifili i nisi fa'aliliuga mo le fa'aopoopoina o le faigata

  • Nikeli (Ni): Su'ega aofaiga

  • 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:

  • Mea faigaluega tipi

  • Vaega tauave

  • 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:

  • Susū

  • Mea'ai acids

  • 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:

  1. Fa'amaaa: Fa'avevela ile 1010–1065°C (1850–1950°F)

  2. Tinei: Suauu po o le ea tineia e faamaaa ai mea

  3. 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

  • Lau tipitipi

  • Fugalaau

  • Nafi fa'apisinisi

  • Seulu

e) Bearings ma Valve Vaega

  • Uiga polo

  • Nofo nofoa ma ogalaau

  • Pa'u ta'avale nila

  • Pivot pine

i) Aerospace ma Puipuiga

  • Va'alele actuator vaega

  • Fa'a pine

  • 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:

  • Meafaigaluega nifo

  • Mea faigaluega ta'oto

  • Toto'i fa'ama'i (e le tumau)

u) Alamanuia Limu ma Pepe

O lona tetee i le ofuina e talafeagai mo:

  • Palasitika tui tui

  • Fausia mate

  • 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:

  • E fa'atapula'aina le fa'aleagai si'osi'omaga o le gataifale po'o le chloride

  • Malosi maualalofa'atusatusa i togi austenitic

  • E mafai ona ma'a'ei le maaa tele se'i vagana ua fa'aeteete

  • 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:

  • Fa'amauina: Mo masini faigofie ma fau a'o le'i faamaaaina

  • Fa'aele'ele pe fa'aiila: Mo le fa'alelei po'o le fa'atinoina lelei

  • 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