1) 42CrMo iav hlau muaj cov yam ntxwv ntawm lub zog siab, muaj peev xwm tawv, tawv zoo, deformation me me thaum quenching, lub zog nkag siab thiab lub zog ruaj khov ntawm qhov kub siab.

Siv los tsim cov forgings uas xav tau lub zog siab dua thiab cov seem loj dua quenched thiab tempered dua li 35CrMo hlau, xws li: cov iav loj rau kev sib tsoo locomotive, supercharger kis tau tus mob iav, lub zog siab ntawm lub nkoj, lub qag nram qab, cov pas nrig txuas thiab cov caij nplooj ntoos hlav uas muaj kev thauj khoom ntau heev. Nws kuj tseem siv tau rau cov roj tob qhov dej tho qhov dej thiab cov cuab yeej nuv ntses hauv qab 2000m; thiab tuaj yeem siv rau pwm ntawm cov tshuab khoov, thiab lwm yam.

2) 20CrMnTiH iav hlau yog cov hlau carburizing nrog kev ua tau zoo, muaj peev xwm tawv, tawv thiab hnav-resistant nto thiab lub plawv tawv tom qab carburizing thiab quenching, siab qis kub cuam tshuam toughness, nruab nrab weld-muaj peev xwm, thiab tuaj yeem welded tom qab normalizing Zoo machinability.

Nws yog siv los tsim cov khoom tseem ceeb nrog qhov seem hla <30 hli uas tiv taus kev kub ceev, nruab nrab lossis hnyav, kev cuam tshuam thiab kev sib txhuam; xws li: iav, lub nplhaib iav, lub taub hau iav, thiab lwm yam. Nws yog cov hlau hloov pauv rau 18CrMnTi, uas yog siv dav ua cov khoom carburized. Nws yog siv rau hauv kev lag luam tsheb thiab tsheb laij teb nrog qhov seem hauv qab 30 hli; nws yog ib qho tseem ceeb carburized uas dais kev kub ceev, nruab nrab lossis hnyav thiab raug cuam tshuam thiab kev sib txhuam;