O a Fomu Togafitiga o le Vevela mo Fa'aliga Uamea Fa'atau?

Vasega uamea uamea	Ituaiga	Fa'aoga masani	Togafitiga o le vevela masani
304 / 304L	Austenitic	Mea'ai, vaila'au, gataifale	Fofo fa'apipi'i
316 / 316L	Austenitic	Vailaau, gataifale, falema'i	Fofo fa'apipi'i
410 / 420	Martensitic	Valves, vaega turbine	Fa'ama'a'a + Fa'asalaina
430	Ferritic	Omea ta'avale, mea faigaluega	Fa'asusu
17-4PH	Timuga Malosi.	Aerospace, faaniukilia	Matua (timu)

Fomu Togafitiga vevela mo Fa'amea u'amea

1. Fa'asusu

Faamoemoega:

• Faʻaitiitia le maaa ma faʻaleleia le ductility

• Fa'amama avega i totonu

• Fa'amama le fausaga o saito

Fa'agasologa:

• Fa'avevela ile vevela fa'apitoa (800–1100°C fa'atatau ile vasega)

• Taofi mo se taimi faatulagaina

• Fa'alili lemu, e masani lava ile ogaumu

Fa'aaogaina Mo:

• Ferritic (430)mamartensitic (410, 420)togi

• Fa'amalulu pe a mae'a galuega malulu

• Fa'aleleia atili o masini

sakysteele tu'uina atu 'au'aunaga fa'apipi'i fa'atonutonu e fa'amautinoa ai le fa'aogaina o le microstructure ma le fa'amalieina lelei mo masini.

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2. Fofo Su'e (Togafitiga Fofo)

Faamoemoega:

• Fa'amuta carbide ma sua

• Toe fa'afo'i le fa'asao

• Ausia se fausaga austenitic tutusa

Fa'agasologa:

• Avela i le ~1040–1120°C

• Tinei vave ile vai po'o le ea e fa'aaisa ai le fausaga

Fa'aaogaina Mo:

• Austenitic uamea u'amea(304, 316)

• Taua pe a uma le uelo po'o le galue vevela

• Aveese le chromium carbide faʻafefe ma toe faʻafoʻisia le faʻafefe

sakysteelfa'amautinoa le fa'amutaina o vaifofo e soso'o ma le tineia vave e 'alofia ai le fa'alogoina ma le pala i totonu.

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3. Fa'ama'a (Quenching)

Faamoemoega:

• Faateleina le malosi ma le maaa

• Fa'aleleia le fa'alavalava

Fa'agasologa:

• Fa'avela u'amea fa'a'u'umea martensitic i le ~950-1050°C

• Taofi e fa'aausteniti le fausaga

• Tinei vave i le suauu po o le ea

Fa'aaogaina Mo:

• Uamea uamea martensitic(410, 420, 440C)

• Vaega e mana'omia ai le ma'a'a maualuga (valves, bearings)

Manatua: Austenitic u'amea e le mafai ona faʻamaʻaʻaina e ala ile vevela.

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4. Fa'aitaina

Faamoemoega:

• Faʻaitiitia le pala pe a uma ona faʻamaʻa

• Faateleina le maaa

• Fetuuna'i le maaa i mana'oga fa'aoga

Fa'agasologa:

• Fa'avevela ile 150–600°C pe a uma ona fa'ama'a

• Taofi mo le 1-2 itula e fuafua i le tele o vaega

• Maalili i le ea filemu

Fa'aaogaina Mo:

• Uamea uamea martensitic

• E masani ona tuʻufaʻatasia ma le faʻamaʻaʻaina i se faiga e lua-laasaga

sakysteelfa'atonu fa'ata'amilosaga fa'afefete e fetaui tonu ma fa'amatalaga fa'ainisinia mo vaega ta'itasi.

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5. Fa'amalo o timuga (Atua)

Faamoemoega:

• Fa'amalosia e ala i le fa'atupuina lelei o ma'a

• Ausia le malosi maualuga e maua e aunoa ma le faʻalavelave tele

Fa'agasologa:

• Fofo togafiti ile ~1040°C ma tineia

• Tausaga ile 480–620°C mo ni nai itula

Fa'aaogaina Mo:

• 17-4PH (UNS S17400)ma u'amea tutusa

• Aerospace, faaniukilia, ma vaega maualuga-malosi

Faamanuiaga:

• Sili le malosi-i-mamafa fua faatatau

• Lelei le pala

• Laiti fa'asesega fa'atusatusa ile fa'ama'a'a martensitic

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6. Fa'avevesi

Faamoemoega:

• Aveese le faʻalavelave i totonu e mafua mai i le masini, faʻamalosi, poʻo le uʻamea

• Taofi suiga tetele a'o tautua

Fa'agasologa:

• Avela i le 300–600°C

• Taofi mo se taimi patino

• Fa'alili lemu

Fa'aaogaina Mo:

• O vaega fa'amea tetele

• Fa'atonu-masini vaega

sakysteelofo atu aganu'u fofo fa'amalologa fa'amamafa e fa'atumauina le tulaga mautu o fa'alavelave lavelave.

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7. Fa'asalaina (E le masani i le sila uamea)

Faamoemoega:

• Fa'amama le tele o saito

• Faʻaleleia le tutusa i le fausaga ma meatotino

Fa'agasologa:

• Avela i luga a'e suiga vevela

• Ea malulu i le vevela potu

Fa'aaogaina Mo:

• E masani ona fa'aaogaina i uamea kaponi ma uamea

• Fa'aaoga i lea taimi ma lea taimi i u'amea u'amea ferritic

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Mea e Fa'aaafiaina Filifiliga Togafitiga vevela

• Vasega u'amea uamea

• Au'aunaga vevela ma tulaga

• Mana'oga fa'asao

• Manaomia mea tau masini

• Tele o vaega ma foliga

• Laasaga pe a mae'a fa'agaioiga (uelo, masini)

O le fa'aogaina lelei o le vevela e fa'amautinoa ai e fa'atino fa'alagolago le fa'ameamea i totonu o si'osi'omaga fa'amalosi ma fa'afetaui tulaga fa'ainisinia.

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Puleaina lelei i Togafitiga vevela

At sakysteel, o le vevela togafitiga o faʻamaʻi uʻamea uʻamea e faia i totonu o ogaumu pulea ma:

• Sa'o le mata'ituina o le vevela

• Su'ega Thermocouplemo vaega tetele

• Fa'ata'ita'i ile ASTM A276, A182, A564 fa'ata'ita'iga

• Su'ega pe a mae'a togafitigae aofia ai maaa, tensile, ma su'esu'ega metallographic

• EN 10204 3.1/3.2 tusipasipe a talosagaina

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Fa'aaogāina o Fa'amea Fa'a'ele'ele Fa'ameamea

• Flanges ma mea fa'apipi'i: Fofo fa'apipi'i po'o fa'anotonu

• A'au ma Vale Vaega: Fa'ama'a'a ma ita

• Fale Pamu: Fa'ate'a le popole

• Vaega Aerospace: Ua maaa timuga

• Va'a oona: Fa'apipi'i ma fa'ata'ita'i ile tulaga ASME

sakysteel'au'auna tagata fa'atau i le gaosiga o le eletise, gataifale, mea'ai mea'ai, suau'u & kesi, ma isi mea.

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Fa'ai'uga

O togafitiga vevela o se laasaga taua i le gaosiga ou'amea fa'ameamea, fa'atagaina le pulea sa'o i luga o le malosi fa'ainisinia, tete'e o le pala, ma le fausaga i totonu. Faʻalagolago i le faʻaogaina ma le faʻaogaina, o le vevela e mafai ona aofia ai le faʻafefeteina, fofo fofo, faʻamaʻaʻaina, faʻafefe, faʻamalolo faʻalavelave, poʻo le matua.

E ala i le malamalama i lefomu togafitiga vevela mo forgings uamea stainless, inisinia ma tagata faʻatau e mafai ona faʻamaonia faiga saʻo mo talosaga taua. Isakysteel, matou te tu'uina atu 'au'aunaga fa'amama atoatoa ma le vevela e fa'amalieina tulaga fa'ava-o-malo ma fa'amatalaga o tagata o tausia.