Chitsulo cha AISI 347 Chogwiritsidwa Ntchito Popanga

Chitsulo chosapanga dzimbiri ndi chitsulo chopanda chitsulo chomwe chimatha kukana dzimbiri mumlengalenga kapena media corrosive media. Chitsulo chosapanga dzimbiri sichiyenera kuchitidwa chithandizo chapamwamba monga kupaka utoto, koma chimakhalanso ndi mawonekedwe amtundu wa chitsulo chosapanga dzimbiri. Kuchokera pamalingaliro a metallographic, chitsulo chosapanga dzimbiri chimakhala ndi chromium, yomwe imapanga filimu yopyapyala kwambiri ya chromium pamtunda. Filimu iyi ikhoza kudzipatulazitsulo zosapanga dzimbirikulowetsa mpweya wa okosijeni, motero kumapangitsa kuti zisawonongeke. Kuti chitsulo chosapanga dzimbiri chikhale cholimba, chitsulo chosapanga dzimbiri chiyenera kukhala ndi chromium yoposa 12%.

347 chitsulo chosapanga dzimbiri ndi giredi mu ASTM A240/240M muyezo. Ndi chitsulo chosapanga dzimbiri cha austenitic. Ku China, kalasi yofananira ya zitsulo zosapanga dzimbiri 347 ndi 0Cr18Ni11Nb. Chifukwa ili ndi gawo lina la niobium (Nb), chitsulo chosapanga dzimbiri cha 347 chimakhala ndi kukana bwino kwa crystallographic corrosion, ndipo chimakhala ndi mphamvu zambiri komanso pulasitiki. 347 Chitsulo chosapanga dzimbiri chimakhala ndi kukana kwa okosijeni komanso kutenthetsa mumlengalenga pansi pa 800 ° C.

347 Chitsulo chosapanga dzimbiri chimakhala ndi kukana kwa dzimbiri muzamankhwala monga ma acid, alkalis, ndi njira zamchere. Kuphulika kwamphamvu kwapang'onopang'ono komanso kutentha kwamphamvu kwamphamvu kwamakina azitsulo zosapanga dzimbiri 347 ndizabwinoko kuposa za304 chitsulo chosapanga dzimbiri. Magawo ogwiritsira ntchito ndi otakata kwambiri, monga ndege, kupanga magetsi, chemistry, mafakitale a petrochemical, chakudya, kupanga mapepala,utsi wochuluka, ndi zina.

Mankhwala a 347 chitsulo chosapanga dzimbiri ali motere:

Mpweya C: ≤0.08%
Silicon Si: ≤1.00%
Manganese Mn: ≤2.00%
Phosphorus P: ≤0.045%
Sulfure S: ≤0.030%
Chromium Cr: 17.00 ~ 19.00
Nickel Ni: 9.00 ~ 12.00
Niobium Nb: ≥10*C%

The makina katundu 347 zitsulo zosapanga dzimbiri (solid yankho boma) ndi motere:

Mphamvu zokolola (N/mm2) ≥205
Kulimba kwamphamvu (N/mm2) ≥515
Elongation (%) ≥ 40
Kulimba: HB: ≤187