Umbhobho wokwenyani obhityileyo wodonga olungenasici kwisitokhwe
I-304 enkulu yombhobho wensimbi engenasici luhlobo lwentsimbi ephezulu ye-alloy enokumelana ne-corrosion emoyeni okanye kwi-chemical corrosion medium. Umbhobho wentsimbi ye-304 unomphezulu omhle kunye nokuxhathisa okulungileyo kokuhlwa. Akunyanzelekanga ukuba ingene kunyango lomphezulu olufana nokufakwa kombala, kodwa inika umdlalo ogcweleyo kumphezulu wendalo owenziweyo wentsimbi engatyiwayo kwaye isetyenziswa kwimiba emininzi yentsimbi.
9% nickel, 19% chromium, steel stainless, intsimbi ukumelana nobushushu
Ngokuqhelekileyo kuthiwa yintsimbi engenasici. Iipropati ezimeleyo ziquka i-13 yensimbi ye-chromium, i-18-8 ye-chromium nickel yensimbi kunye nezinye iintsimbi eziphezulu ze-alloy. Ngokombono we-metallography, ngenxa yokuba insimbi engenasici iqulethe i-chromium, ifilimu ye-chromium encinci kakhulu yenziwa phezu komhlaba, eyahlula kwi-oksijini ehlaselwe kwintsimbi kwaye idlala indima ekuxhathiseni ukubola. Ukuze kugcinwe ukuxhathisa kwe-corrosion yendalo yensimbi engenasici, intsimbi kufuneka iqulethe ngaphezu kwe-12% ye-chromium. I-304 yintsimbi yendalo yonke engenasici, esetyenziswa ngokubanzi ukwenza izixhobo kunye neengxenye ezifuna ukusebenza kakuhle okubanzi (ukumelana nokubola kunye nokubumba). I-304 insimbi engenasici luhlobo lwensimbi engenasici eveliswa ngokwemigangatho ye-ASTM yaseMelika. I-304 ilingana ne-0Cr19Ni9 (0Cr18Ni9) insimbi engenasici e-China. I-304 iqulethe i-19% yechromium kunye ne-9% ye-nickel. I-304 yeyona nto isetyenziswa kakhulu insimbi engenasici kunye nentsimbi ekwazi ukumelana nobushushu. Kwizixhobo zokuvelisa ukutya, izixhobo zeekhemikhali ze-Xitong, amandla enyukliya, njl. njl. ukubunjwa kweekhemikhali ukucaciswa kwe-304 yensimbi engenasici C Si Mn ps Cr Ni (nickel) Mo SUS304 ≤ 0.08 ≤ 1.00 ≤ 2.00 ≤ 0.05 ≤ 0.000 180 18.
