Ipuleti lensimbi engagqwali elingu-420ingeyensimbi engagqwali ye-martensitic, enokumelana nokuguguleka okuthile kanye nokumelana nokugqwala, ubulukhuni obuphezulu, futhi intengo iphansi kunezinye izici zensimbi engagqwali. Ishidi lensimbi engagqwali le-420 lifanelekela zonke izinhlobo zemishini yokunemba, amabheringi, izinto zikagesi, imishini, amathuluzi, amamitha, izimoto, izinto zasendlini, njll. Insimbi engagqwali ye-420 isetshenziswa kakhulu ekwenziweni kwezingxenye ezimelana nokugqwala komoya, umhwamuko wamanzi, amanzi kanye ne-oxidative acid.
I-China 420 ishidi lensimbi engagqwali ejwayelekile ephezulu:
I-GB/T 3280-2015 “Ishidi Lensimbi Engagqwali Ebandayo Egoqwe Ngensimbi Engagqwali”
I-GB/T 4237-2015 “Ipuleti lensimbi engagqwali eligoqwe ngokushisa kanye nomcu”
I-GB/T 20878-2007 “Insimbi engagqwali kanye namazinga ensimbi angashisi kanye nokwakheka kwamakhemikhali”
Ipuleti lensimbi engagqwali elingu-420 eShayina:
Amabanga amasha: 20Cr13, 30Cr13, 40Cr13.
Amabanga amadala: 2Cr13, 3Cr13, 4Cr13.
Izici kanye nokusetshenziswa kweshidi lensimbi engagqwali laseChina 420:
Insimbi engagqwali engu-20Cr13: ubulukhuni obuphezulu esimweni sokucinywa, ukumelana okuhle nokugqwala. Kwama-blade e-turbine anomusi.
Insimbi engagqwali engu-30Cr13: Inzima kune-20Cr13 ngemva kokucima, isetshenziswa njengamathuluzi okusika, ama-nozzle, izihlalo zamavalvu, amavalvu, njll.
Insimbi engagqwali engu-40Cr13: Inzima kune-30Cr13 ngemva kokucima, isetshenziswa njengamathuluzi okusika, ama-nozzle, izihlalo zamavalvu, amavalvu, njll.
Isikhathi sokuthunyelwe: Julayi-31-2023