Ipayipi langempela lensimbi engenasici yodonga oluncane esitokweni
Ipayipi lensimbi engagqwali elingu-304 elikhulu liwuhlobo lwensimbi ephezulu ye-alloy engamelana nokugqwala emoyeni noma endaweni yokugqwala kwamakhemikhali. Ipayipi lensimbi engagqwali engu-304 linobuso obuhle nokumelana nokugqwala okuhle. Akudingeki ukuthi ithole ukwelashwa okungaphezulu okufana nokufakwa kombala, kodwa inikeza ukudlala okugcwele ekusebenzeni kwangaphandle kwensimbi engagqwali futhi isetshenziswa ezicini eziningi zensimbi.
9% nickel, 19% chromium, insimbi engagqwali, insimbi ukumelana nokushisa
Ivamise ukubizwa nge-stainless steel. Izakhiwo ezimele zihlanganisa insimbi engu-13 ye-chromium, insimbi engu-18-8 chromium nickel nezinye izinsimbi eziphezulu ze-alloy. Ngokombono we-metallografia, ngenxa yokuthi insimbi engagqwali iqukethe i-chromium, kwakheka ifilimu ye-chromium ezacile kakhulu, ehlukaniswa nomoya-mpilo ongene ensimbi futhi ibambe iqhaza ekumelaneni nokugqwala. Ukuze kugcinwe ukumelana nokugqwala okungokwemvelo kwensimbi engagqwali, insimbi kufanele ibe ne-chromium engaphezu kuka-12%. I-304 iyinsimbi engagqwali yendawo yonke, esetshenziswa kabanzi ukwenza amathuluzi nezingxenye ezidinga ukusebenza okuhle okuphelele (ukumelana nokugqwala nokubumbeka). I-304 insimbi engagqwali iwuphawu lwensimbi engagqwali ekhiqizwa ngokwezindinganiso ze-ASTM zaseMelika. I-304 ilingana ne-0Cr19Ni9 (0Cr18Ni9) insimbi engagqwali e-China. I-304 iqukethe u-19% we-chromium kanye ne-nickel engu-9%. I-304 iyinsimbi engagqwali esetshenziswa kakhulu futhi ekwazi ukumelana nokushisa. Okokusebenza kokukhiqiza ukudla, okokusebenza kwamakhemikhali e-Xitong, amandla enuzi, njll. ukucaciswa kokwakheka kwamakhemikhali kwe-304 insimbi engagqwali C Si Mn ps Cr Ni (nickel) Mo SUS304 ≤ 0.08 ≤ 1.00 ≤ 2.00 ≤ 0.05 ≤ 0.000 180 18.
