◦ Igipimo ngenderwaho cyo gushyira mu bikorwa: GB/T1222-2007.
◦ Ubucucike: 7.85 g/cm3.
• Imiterere y'ibinyabutabire
◦ Karuboni (C): 0.62% ~ 0.70%, itanga imbaraga z'ibanze n'ubukomezi.
◦ Manganese (Mn): 0.90% ~ 1.20%, irushaho gukomera no kongera ubukomere.
◦ Silikoni (Si): 0.17% ~ 0.37%, binoza imikorere yo gutunganya no gutunganya ibinyampeke.
◦ Fosifore (P): ≤0.035%, sulfure (S) ≤0.035%, bigenzura neza ingano y'umwanda.
◦ Chromium (Cr): ≤0.25%, nikeli (Ni) ≤0.30%, umuringa (Cu) ≤0.25%, ibintu bigabanya ubushyuhe, bifasha mu kunoza imikorere.
• Imiterere ya mekanike
◦ Ingufu nyinshi: Ingufu zo gukurura σb ni 825MPa ~ 925MPa, kandi amakuru amwe ari hejuru ya 980MPa. Ifite ubushobozi bwo gutwara ibintu neza kandi ikwiriye imitsi myinshi.
◦ Uburimbane bwiza: Ifite umupaka wo hejuru wo guhindagurika, ishobora kwihanganira uburimbane bunini budafite uburimbane buhoraho, kandi ishobora kubika no kurekura ingufu neza.
◦ Ubukomere bwinshi: Nyuma yo kuvura ubushyuhe, ishobora kugera kuri HRC50 cyangwa irenga, ifite ubushobozi bwo kudashira, ikaba ikwiriye imiterere yo gusaza.
◦ Ubukomere bwiza: Iyo ishyizwe mu biremereye, ishobora gufata ingufu runaka idacitse intege, ibyo bigatuma irushaho kuba inyangamugayo no kumara igihe kirekire mu bihe bigoye.
• Ibiranga
◦ Ikomera cyane: Manganese irushaho gukomera, ikaba ikwiriye gukorwa mu nganda n'ibice binini bifite umurambararo urenga mm 20.
◦ Kuba nta gahu gashoboka ko gusibanganya ubushyuhe: Ubwiza bw'ubuso burahindagurika mu gihe cyo gutunganya ubushyuhe, bigabanya ibyago byo kwangirika vuba.
◦ Gushyuha cyane no kudakomera: Ubushyuhe bwo kuzimya bugomba kugenzurwa neza, kandi urwego rw'ubushyuhe bwo kudakomera rugomba kwirindwa mu gihe cyo kuzimya.
◦ Imikorere myiza yo gutunganya: ishobora gucurwa no gusukurwa, ikwiriye gukorwamo ibice bifite ishusho igoye, ariko ubukonje bwo guhindagurika ni buke.
• Ibipimo byo gutunganya ubushyuhe
◦ Kuzimya: Ubushyuhe bwo kuzimya 830℃±20℃, gukonjesha amavuta.
◦ Gushyushya: Ubushyuhe bwo gushyushya 540℃±50℃, ±30℃ iyo bikenewe byihariye.
◦ Guhindura ubushyuhe: Ubushyuhe 810±10℃, gukonjesha umwuka.
• Ahantu hakoreshwa
◦ Gukora mu mpeshyi: nk'amasoko y'amababi y'imodoka, amasoko agabanya impanuka, amasoko ya valve, ibiti by'urukiramende, n'ibindi.
◦ Ibice bya mekanike: bishobora gukoreshwa mu gukora ibice biremereye kandi bikurura cyane nka za giteri, za bearing, na piston.
◦ Ibikoresho byo gukata no gusiga irangi: hakoreshejwe ubukana bwayo bwinshi no kudashira, ishobora gukoreshwa mu gukora ibikoresho byo gukata, gusiga irangi, nibindi.
◦ Inyubako n'ibiraro: bishobora gukoreshwa mu gukora ibintu byongera ubushobozi bwo gutwara ibintu, nk'ibyuma bifasha mu kubaka, ibikoresho bishyigikira inyubako, nibindi.
Igihe cyo kohereza: Nyakanga-18-2025