Kev siv cov hlau normalizing
Normalizing yog cov txheej txheem kev lag luam uas siv dav tshaj plaws vim tias nws muaj kev lag luam ntau dua rau normalize steel piv rau annealing. Hauv normalizing, lub cub tawg tau npaj rau lub voj voog tom ntej sai li sai tau thaum cua sov thiab sib npaug dhau, raws li qhov txias yuav tshwm sim hauv huab cua, qhov kev sib tsoo yuav siv li ntawm 8 mus rau 20 teev, nyob ntawm tus nqi, thaum nyob rau hauv annealing, qhov txias ntawm lub cub tawg tom qab cua sov thiab sib npaug yuav siv sij hawm los ntawm 8 mus rau 20 teev. Yog li ntawd, nyob rau hauv ntau zaus, annealing yog hloov los ntawm normalizing los txo cov nqi kho cua sov. Yog tias cov kev xav tau ntawm kev ua haujlwm tsis nruj heev, normalizing yog siv.
Qee qhov piv txwv ntawm normalizing hauv kev coj ua lag luam yog raws li hauv qab no.
Gear blanks yog normalized ua ntej machining kom qhov kev hloov pauv xws li kev loj hlob, shrinkage lossis warpage tuaj yeem tswj tau zoo dua thaum lub sij hawm tom ntej hardening lossis rooj plaub.
Homogenization ntawm cam khwb cia thiab forged lug
Kev txhim kho ntawm casting machinability thiab refinement ntawm casting cov ntaub so ntswg grain loj
Kev nyuaj siab nyem ntawm castings
Cam khwb cia hlau thiab alloys yog yam ntxwv los ntawm kev sib cais, core thiab dendritic lug thiab inhomogeneous zog. Zoo sib xws, wrought hlau thiab alloys uas tau forged, dov thiab extruded, thiab lwm yam machining txheej txheem kuj muaj inhomogeneous lub koom haum thiab cov khoom. Cov qauv thiab cov khoom no tau ua ib yam los ntawm normalizing.
Qee zaum, thaum cov hlau kub lossis txias ua haujlwm, kev kho cua sov yuav tsum tau ua kom rov qab tau nws cov khoom qub qub.
Nyob rau hauv cov ntaub ntawv ntawm normalizing tshav kub kev kho mob ntawm weld hlau, tus thawj zoo grain microstructure ntawm weld hlau yog hloov mus rau coarse equiaxed ferrite nrog ferrite carbide aggregates, thiab lub zog tawm los thiab tensile zog zog yog txo.
Vim yog qhov hnyav txhua yam kev ntxhov siab thiab kev hloov pauv microstructural siv rau qhov chaw, nws tsis tshua muaj siv forgings yam tsis muaj kev kho cua sov. Normalizing yog ib qho kev kho cua sov uas yooj yim tshaj plaws uas ua kom zoo (lossis normalizes) microstructure thiab sib npaug ntawm qhov kub thiab txias ntawm cov khoom siv thaum lub sijhawm ua haujlwm forging. Normalizing forgings yog qhov zoo heev rau kev ua haujlwm tom ntej
Steel undergoing yas deformation muaj pearlite, uas yog irregularly zoo li tus thiab kuj loj, tab sis sib txawv qhov ntev. Normalizing yog kev kho cua sov ua los ntawm cov hlau los kho nws cov qauv siv lead ua thiab tsim kom muaj ib qho zoo sib xws thiab xav tau cov khoom lag luam loj.
