Hardenability yog dab tsi?
Hardenability yog hais txog cov khoom siv uas tau teev tseg los ntawm qhov tob ntawm txheej hardened thiab cov qauv hardness faib raws li qhov xwm txheej, thiab nws feem ntau txiav txim siab los ntawm cov khoom tseem ceeb quenching txias tus nqi. Nyob rau hauv tej yam kev mob, qhov zoo uas tswj qhov tob ntawm hardening thiab faib hardness nyob rau hauv steel. Ntawd yog, lub peev xwm los txiav txim siab qhov tob ntawm txheej hardened thaum cov hlau yog quenched, qhia tias cov hlau muaj peev xwm tiv taus quenching.
Qhov tob ntawm txheej hardened, tseem hu ua qhov tob ntawm txheej hardened, yog qhov kev ncua deb ntawm cov hlau nto thiab nws cov semi-martensitic cheeb tsam (50 feem pua ntawm cov martensite nyob rau hauv cov qauv, thiab cov seem 50 feem pua yog pearlite hom qauv. ). (Muaj cov qib steel ntxiv uas xav tau 90 feem pua lossis 95 feem pua ntawm cov koom haum martensitic cheeb tsam, xws li cov cuab yeej steel thiab cov kabmob steel.) Qhov siab dua qhov tob ntawm cov hlau txheej hardened, qhov zoo dua cov hlau hardenability.
Hlau muaj ib qho zoo los yog txaus ntshai hardenability, uas yog feem ntau characterized los ntawm qhov tob ntawm hardened txheej. Lub harderenability ntawm steel txhim kho nrog qhov tob ntawm txheej hardened. Steel lub hardenability yog ib qho tseem ceeb ntawm cov khoom; nws tsuas yog nyob ntawm cov xwm txheej sab hauv thiab tsis muaj kev cuam tshuam rau sab nraud cuam tshuam.
Steel lub hardenability yog feem ntau txiav txim los ntawm nws cov tshuaj pleev ib ce, tshwj xeeb tshaj yog cov alloying ntsiab thiab grain loj uas txhawb hardenability, raws li zoo raws li cua kub kub thiab tuav lub sij hawm. Cov hlau uas muaj kev ua tau zoo heev tuaj yeem ua tiav cov yam ntxwv zoo ib yam ntawm nws tag nrho cov seem, thiab tus neeg sawv cev quenching uas tsis tshua muaj kev ntxhov siab tuaj yeem siv los tiv thaiv deformation thiab tawg.
Qhov tseem ceeb ntawm qhov txias txias feem ntau yog txiav txim siab los ntawm qhov hardenability ntawm supercooled austenite, thiab qhov ntsuas cua txias tseem ceeb yog txiav txim siab los ntawm kev ruaj ntseg ntawm supercooled austenite. Cov hauv qab no yog cov ntsiab lus tseem ceeb uas cuam tshuam rau austenite's stability:
Thaum cov pa roj carbon concentration hauv austenite tsawg dua {{0}}}.77 feem pua, qhov tseem ceeb ntawm qhov txias txias yog qis heev, thiab steel hardenability txhim kho; Thaum C feem ntau loj dua 0.77 feem pua, qhov txias txias ntawm steel nce, thiab steel hardenability poob. Qhov thib ob yam yuav tsum tau xav txog yog cov nyhuv ntawm alloying ntsiab. Nrog rau kev zam ntawm cobalt, feem ntau cov ntsiab lus alloying yaj rau hauv austenite, txo qis qhov tseem ceeb ntawm qhov txias txias thiab txhim kho steel hardenability.
Kev cuam tshuam ntawm austenite grain loj ntawm steel hardenability: Qhov tseeb grain loj ntawm austenite muaj feem cuam tshuam rau steel hardenability. Coarse austenite nplej tuaj yeem ua rau C nkhaus txav mus rau sab xis, txo qis cov hlau qhov tseem ceeb txias txias. Cov granules ntxhib, ntawm qhov tod tes, yuav ua rau cov hlau tsis sib haum, tawg, thiab poob nws qhov tawv.
Qhov cuam tshuam ntawm austenite uniformity: nyob rau hauv tib lub txias txias, qhov sib txawv ntawm austenite muaj pes tsawg leeg, qhov qis ntawm nucleation tus nqi ntawm pearlite, lub sij hawm hloov pauv ntev dua, txoj cai hloov ntawm C nkhaus, qeeb qeeb qhov tseem ceeb ntawm qhov txias txias, qhov qeeb ntawm cov hlau. Qhov siab dua qhov hardenability, qhov zoo dua.
Lub thickness thiab kev faib tawm ntawm cov qauv hlau qub yuav muaj kev cuam tshuam loj heev rau cov muaj pes tsawg leeg ntawm austenite.
Qee lub ntsiab lus, xws li Mn, Si, thiab lwm yam, pab txhim kho hardenability, tab sis lawv tuaj yeem muaj qhov tsis zoo rau cov hlau.
Koj puas muaj lus nug tshwj xeeb txog lubMachining Services? Hu rau Yogie!Peb cov kws tshaj lij kev muag khoom yuav ua haujlwm nrog koj txij thaum pib mus rau qhov kawg kom paub tseeb tias koj qhov project ua tiav raws li koj xav tau.
Tsis tas li ntawd,Yogyog ib tug kws tsim khoom rauCov cuab yeej siv mining, CNC tshuab cuab yeej, thiabMachinery qhov chawrau ntau tshaj 20 xyoo.
