FAAMATALAGA
u'amea u'amea 317L o se molybdenum vasega o loʻo i ai maualalo carbon, faʻatasi ai ma faʻaopoopoga o chromium, nickel, ma molybdenum. O lenei mea e maua ai le sili atu o le tete'e ma le fa'ateleina o le tete'e atu i osofa'iga vaila'au mai acetic, tartaric, formic, citric, ma sulfuric acids. 317L paipa / paipa e maua ai le fetolofi maualuga, ma le tetee i le lagona pe a faʻafefe, ona o le maualalo o le kaponi. O fa'amanuiaga fa'aopoopo e aofia ai le fa'amamafa i le gau, ma le malosi fa'amalosi i le vevela maualuga. Vasega 317l paipa uamea e le maneta i le tulaga annealed. Ae ui i lea, e mafai ona matauina sina maneta pe a uma ona uelo.
317L UA FAI PAIPO FA'AVAE
317L paipa u'amea e tu'uina mai e Arch City Steel & Alloy o lo'o iai mea nei:
Tete'e a'e:
- Fa'aalia le fa'alavelave fa'afefete i siosiomaga eseese, aemaise lava i siosiomaga chloride acidic ma le tele o vaila'au.
- E sili atu le tete'e i le pala i talosaga pe a mana'omia le fa'aleagaina
- 317L fa'apa'u u'amea u'amea/paipa ma maualalo kaponi anotusi ofoina lelei tetee i intergranular corrosion
- O le faʻaogaina o le uamea i le lua pe a faʻafesoʻotaʻi ma chlorides, bromides, phosphorus acids, ma iodides ua taofiofia.
Tete'e vevela:
- E sili atu le tetee i le faʻamaʻiina ona o le chromium-nickel-molybdenum.
- Fa'aalia se fua maualalo o le fa'asili ile vevela e o'o ile 1600-1650°F (871-899°C), ile ea masani.
Uiga Uiga:
- Se'i vagana le oxyacetylene uelo, fa'alelei fa'alelei e ala uma fa'afefiloi masani ma metotia fa'asagatau.
- Fa'atumu u'amea ma nickel-faavae ma lava chromium ma molybdenum anotusi e tatau ona fa'aoga e fa'aigoa ituaiga 317L sila. E fesoasoani lea i le fa'aleleia atili o le fa'a'ele'ele o le oloa uelo. AWS E317L/ER317L po'o austenitic, maualalo kaponi fa'atumu u'amea e maualuga atu molybdenum anotusi nai lo vasega 317L e mafai fo'i ona fa'aoga.
Masini:
- O le galue i Saosaoa maualalo ma fafaga faifaipea e fesoasoani e fa'aitiitia ai le ma'a'a o paipa vasega 317L.
- Vasega 317L paipa u'amea u'amea e sili atu le malosi nai lo le 304 u'amea ma mafai ona umi ma manoa pu'e pe'a fa'ameamea. O le mea lea, e fautuaina le faʻaaogaina o mea faʻapipiʻi.
Talosaga:
Vasega 317L faagaau u'amea e masani ona fa'aaogaina mo le tagofiaina o le ava, vaila'au vaila'au, vaifofo bleaching, acetylating ma fa'afefiloi fa'afefiloi, ma isi mea fa'apitoa ole vasega 317L paipa e aofia ai:
- Mea faigaluega e fa'agaoio ai vaila'au ma petrochemical
- Mea faigaluega e fa'aaoga pepa ma pulupulu
- Mea faigaluega gaosi mea'ai
- Condenser i nofoaga faaniukilia ma fossil powered stations
- Meafaigaluega ie
ISI KEMI:
| Tulaga Fa'ata'ita'i Fa'apitoa % (tau maualuga, se'i vagana ua fa'ailoa) | |||||||||
| Vasega | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| 317L | 0.035 maualuga | 2.0 maualuga | 0.75 maualuga | 0.04 maualuga | 0.03 maualuga | min: 18.0 maualuga:20.0 | min: 3 maualuga: 4 | min: 11.0 maualuga: 15.0 | paleni |
Taimi meli: Oke-09-2020