E Valu Lapataiga mo Uila u'amea

1. O le u'amea u'amea o le Chromium o lo'o i ai ni fa'ama'i fa'a'a'a (oxidizing acids, organic acids, cavitation), tete'e o le vevela, ma le tete'e o le ofuina. E masani ona fa'aogaina mo mea faigaluega e pei o le eletise, vaila'au, ma le suauu. Chromium uʻamea uʻamea e le lelei weldability, ma e tatau ona gauai atu i faiga uelo, vevela togafitiga tulaga, ma isi.

2. Chromium 13 u'amea u'amea maualuga fa'amau fa'amau fa'amau ma e faigofie ona ta'e. Afai o le ituaiga tutusa o le chromium uamea uʻamea uamea (G202, G207) e faʻaaogaina mo le uelo, faʻamumu i le 300 ℃ pe sili atu ma faʻagesegese togafitiga malulu ile 700 ℃ pe a uma le uelo e tatau ona faia. Afai e le mafai e vaega uelo ona fa'ata'ita'iina le vevela pe a mae'a le uelo, e tatau ona fa'aoga chromium nickel stainless steel rods (A107, A207).

3. Chromium 17 u'amea u'amea e sili atu weldability nai lo chromium 13 u'amea u'amea e ala i le faʻaopoopoina faʻamautu elemene talafeagai e pei o Ti, Nb, Mo, ma isi e faʻaleleia lona teteʻe aʻa ma weldability. Pe a faʻaaogaina le ituaiga tutusa o chromium uamea uʻamea uʻamea (G302, G307), faʻamafanafana i le 200 ℃ poʻo luga ma faʻafefeteina togafitiga ile 800 ℃ pe a uma le uelo e tatau ona faia. Afai e le mafai e vaega uelo ona faʻafefeteina togafitiga, e tatau ona faʻaoga chromium nickel stainless steel rods (A107, A207).

I le taimi o le ueloina o le chromium nickel stainless steel, toe faʻavevelaina e mafai ona faʻafefeteina carbide, faʻaitiitia ai lona teteʻe ma mea faʻainisinia.

5. Chromium nickel stainless uʻamea uʻamea tootoo e lelei le corrosion teteʻe ma oxidation tetee, ma e lautele faaaogaina i vailaau, fetilaisa, suauu, ma masini faafomai gaosiga.

6. O le chromium nickel stainless steel coating e iai le ituaiga calcium titanium ma le ituaiga hydrogen maualalo. Titanium calcium ituaiga e mafai ona faʻaaogaina mo le AC ma le DC uelo, ae o le loloto o le liusuavai e papaʻu i le taimi o le uelo AC ma e faigofie ona mumu. O le mea lea, e tatau ona faʻaaogaina le mana DC i le tele e mafai ai. Ole mita ole 4.0 ma lalo e mafai ona fa'aoga mo tulaga uma o le uelo, a'o le lautele ole 5.0 ma luga e mafai ona fa'aoga mo le fa'apipi'i mafolafola ma le uelo fa'amau.

7. O la'au uelo e tatau ona fa'amamago a'o fa'aoga. Titanium calcium ituaiga e tatau ona faʻamago i le 150 ℃ mo le 1 itula, ma le maualalo o le hydrogen e tatau ona faʻamago i le 200-250 ℃ mo le 1 itula (e le faʻatagaina le faʻamagoina, a leai o le ufiufi e faigofie ona taʻe ma paʻu), e puipuia ai le ufiufi. o le tootoo uelo mai le pipii o le suauu ma isi palapala, ina ia aua nei faʻateleina le carbon i totonu o le uelo ma aʻafia ai le lelei o le vaega uelo.

Ina ia puipuia le corrosion inter-granular e mafua mai i le faʻamafanafanaina, e le tatau ona maualuga tele le faʻaogaina o le taimi nei, e tusa ma le 20% le itiiti ifo nai lo uʻamea uamea carbon. E le tatau ona umi tele le arc, ma e tatau ona vave fa'alili le va'aiga. O lo'o uelo vaapiapi e sili.