Ukufakwa Kwezimali Kwezimvula Kwenza Ukuqina Kwensimbi Engagqwali

Inhloso eyinhloko yokwelashwa kwesisombululo esiqinile sokusakazwa kwensimbi engagqwali ukuncibilikisa ama-carbides noma ezinye izigaba ezincishisiwe kusixazululo esiqinile ukuze kutholwe isakhiwo sesigaba esisodwa esine-supersaturated. Ukufakwa kwensimbi engagqwali ye-austenitic, insimbi ye-austenitic manganese kanye nemvula eqinisa insimbi engagqwali ngokuvamile kufanele kube isixazululo esiqinile.

I-Martensitic precipitation eqinisa insimbi engagqwali ngokuvamile iqukethe ikhabhoni ngaphansi kuka-0.1%. Qinisa ngokungeza izakhi eziqinisayo (ithusi, i-aluminium, i-titanium ne-aluminium, njll.) ukuze wenze ukuntuleka kwamandla. Okuqukethwe kwe-chromium ngokuvamile kuphezulu kuno-17%, futhi inani elifanele le-nickel liyangezwa ukuze kuthuthukiswe ukumelana nokugqwala.

Imvula edonsa kanzima eyenza insimbi engagqwali ibe lukhuni iwuhlobo lwensimbi eyingxubevange enokuqukethwe kwekhabhoni engengaphezulu kuka-0.03% ukuze kuqinisekiswe ukuqina, ukumelana nokugqwala, ukushisela nokusebenza kwe-matrix ye-martensite, kanye ne-chromium engu-12% yokuqinisekisa ukumelana nokugqwala. Ngaphezu kwalokho, i-cobalt ye-alloy element yengezwa ukuze kuthuthukiswe umphumela wokwelapha ukushisa kwensimbi.

Umswakamo we-semi-austenitic wenza lukhuni insimbi engagqwali, okungukuthi, imvula eshintshayo yenza lukhuni insimbi engagqwali, equkethe engekho ngaphansi kuka-12% we-chromium. Inokuqukethwe kwekhabhoni ephansi, kanye ne-aluminium njengento eyinhloko eqinisa imvula. Lolu hlobo lwezulu oluqinisa insimbi engagqwali lusebenza kangcono kunemvula ye-martensitic eqinisa insimbi engagqwali.

I-Austenitic precipitation eyenza lukhuni insimbi engagqwali iyinsimbi engagqwali enesakhiwo se-austenite ezinzile kuzo zombili izimo ezicimekile nezigugayo. Okuqukethwe kwayo kwe-nickel nokuqukethwe kwe-manganese kuphezulu, futhi okuqukethwe kwe-chromium kungaphezu kuka-13% ukuze kuqinisekiswe ukumelana nokugqwala okuhle nokumelana ne-oxidation. Ngesikhathi esifanayo, i-austenitic precipitation eyenza lukhuni insimbi engagqwali ngokuvamile yengeza i-titanium, i-aluminium, i-vanadium noma i-phosphorus njengezakhi eziqinisa imvula, futhi yengeze inani elincane le-boron, i-vanadium, i-nitrogen nezinye izakhi ukuze kutholwe izakhiwo ezinhle kakhulu ezibanzi.

I-RMC Foundry Cast Amabanga Alandelayo Ajwayelekile Wemvula Eqinisa Insimbi Engagqwali

• 1- Amazinga aseShayina: 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb
• 2- British Standard: ANC20, ANC21, ANC22
• 3- Izindinganiso zaseMelika: 630, 634, 17-4PH, 15-5PH, CB7Cu-1
• 4- Amazinga aseJapane: SCS24, SCS32
• 5- Izinga lesiJalimane: 1.4542