I-9Cr18 ne-440C yizo zombili izinhlobo zensimbi engenacala, okusho ukuthi zombili zilukhuni ukwelashwa okushisa futhi zaziwa ngamandla azo aphezulu kanye nokuphikiswa kokugqwala.
I-9Cr18 neI-440CKungokwesigaba sensimbi ye-martensitic engagqwali, odume ngobulukhuni bawo ahlukile futhi ugqoke ukumelana ngemuva kokucishwa, okwenza balungele izinhlelo zokusebenza ezigqokwa kakhulu. Zombili lezi zinto zingafinyelela amazinga okuqina we-HRC60 ° futhi ngaphezulu kokulandela ukwelashwa okushisa.9CR18 kubonakaliswa yikhabhoni yayo ephezulu kanye ne-chromium, ukunikela kulungele ukukhiqiza izingxenye ezibekelwe ukugqokwa okuphezulu, izitha ezisindayo, nezindawo ezingezona ezonakalisayo izingxenye ze-valve. Kodwa-ke, kutholakala ku-oxidation lapho kuchayeka kumanzi noma umphunga wamanzi, kudinga ukusetshenziswa kwayo ezindaweni lapho ukuxhumana nomswakama kuncishisiwe.
Umehluko ekubumbeni kwamakhemikhali
| Khuphuka | C | Cr | Mn | Si | P | S | Ni | Mo |
| I-9Cr18 | 0.95-1.2 | 17.0-19.0 | 1.0 | 1.0 | 0.035 | 0.030 | I-0.60 | 0.75 |
| I-440C | 0.95-1.2 | 16.0-18.0 | 1.0 | 1.0 | 0.040 | 0.030 | I-0.60 | 0.75 |
Ngokufigqiwe,440c insimbi engagqwaliImvamisa inikeza ubulukhuni obuphakeme nokumelana okungcono kakhulu kokugqwala kuqhathaniswa ne-9CR18, kepha zombili izinto zokwakha zilungele izinhlelo eziningi zokusebenza lapho ukusebenza okuphezulu nokuqina kubalulekile.
Isikhathi sePosi: APR-02-2024