Lub qag hla hauv qhov sib txawv yog qhov tseem ceeb ntawm lub qag tsav sib koom ua ke, uas yog siv los xa lub zog thiab kev txav mus los. Cov khoom ntawm lub qag yog ib hom khoom siv uas siv ntau thiab nyob hauv txoj haujlwm tseem ceeb heev. Lub luag haujlwm tseem ceeb ntawm cov khoom ntawm lub qag yog txhawb nqa cov khoom sib kis thiab xa kev txav mus los thiab lub zog. Lawv raug kev ntxhov siab ntau yam thaum ua haujlwm. Cov ntaub ntawv yuav tsum muaj cov khoom siv kho tshuab siab thiab xav tau qee qhov nyuaj kom txhim kho lawv txoj kev tiv thaiv kev hnav.
Kev xaiv cov khoom siv ntawm qhov chaw yuav tsum yog raws li kev lag luam hauv tsev, sim xaiv cov khoom siv nplua nuj hauv peb lub tebchaws, sim tsis txhob xaiv cov khoom siv hlau muaj nqis, xav txog tias cov khoom raug kev hloov pauv ntau zaus thaum lub sijhawm ua haujlwm, yog li kev zam txim raug xaiv, yog li cov hlau fibers qis li sai tau. raug txiav tawm kom ntseeg tau tias kev ua haujlwm txhim khu kev qha ntawm cov khoom. Cov khoom siv ntawm tus ncej hla yog 20CrMnTi, uas yog cov hlau tsis muaj carbon hlau. Nws yog cov khoom siv dav dav uas ua tau raws li cov khoom siv kho tshuab ntawm tus ncej hla thiab pheej yig hauv tus nqi. Kev xaiv cov khoom siv yog qhov tsim nyog.
Ntawm lawv, kev xaiv cov khoom seem thiab kev xaiv cov khoom siv ntawm tus ncej hla ntawm lub iav sib txawv yuav tsum muaj qee lub zog thiab kev tiv thaiv hnav raws li qhov xav tau ntawm cov khoom. Feem ntau, cov qauv hlau qis-carbon (cov ntaub ntawv carburized) xws li 20CrMnTi feem ntau siv. Tsis tas li ntawd, xav txog qhov xwm txheej ntawm ntau lawm ntawm cov khoom loj, Tom qab carburizing thiab quenching, qhov chaw muaj qhov nyuaj siab thaum lub axial ib feem tswj tau lub zog thiab toughness ntau, thiab cov khoom siv kho tshuab xav tau siab, yog li cov txheej txheem pwm forging nrog kev ua haujlwm siab thiab raug yog saws.
Lub sijhawm tshaj tawm: Lub Rau Hli-28-2022