Official Answer
Answer
Kuri ASTM B850, impeta ya karubone nyinshi (ubukana> 40 HRC) igomba gukurikiranwa no guteka mugihe cyamasaha 1 kugeza kuri 4 uhereye amashanyarazi. Porotokole isanzwe ni byibuze amasaha 22 kuri dogere selisiyusi 190-220. Gutinda guteka birakomeye; niba hydrogène yemerewe gukwirakwira ku mbibi z’intete no gutangiza micro-crack mu gihe cy'imbere, ibyangiritse ntibisubirwaho. Kubintu bikomeye byo mu kirere hamwe nimpeta, injeniyeri benshi ubu bava mumashanyarazi yerekeza kumashanyarazi cyangwa ibyuma bidafite ingese kugirango bakureho ubwo buryo bwo kunanirwa burundu.
