Cov txheej txheem normalizing rau steel txawv los ntawm cov txheej txheem annealing rau steel nyob rau hauv cov nqe lus ntawm cua sov kub thiab txias npaum li cas. Nyob rau hauv cov txheej txheem normalizing, steel yog rhuab mus rau ib tug ntau dua kub thiab ces tshem tawm ntawm lub cub tawg rau cua txias. Piv nrog rau annealing, qhov cua sov kub yog qis dua thiab qhov cua txias hauv lub cub tawg yog qis dua. Vim tias cov cua txias sai dua thaum lub sij hawm normalizing, cov hlau muaj zog dua thiab hardness piv rau cov hlau uas tau annealed.
Tsis muaj qhov sib txawv tseem ceeb ntawm annealing thiab normalizing ntawm ductility ntawm cov hlau me me. Lub zog tensile thiab yield point ntawm normalized steels yog siab dua cov annealed steels, tshwj tsis yog nyob rau hauv cov ntaub ntawv ntawm me ntsis steels.
Raws li nyob rau hauv cov ntaub ntawv ntawm annealing, normalizing kuj ua rau tsim ferrite, carburite thiab lamellar pearlite. Txawm li cas los xij, hauv normalizing, qhov hloov pauv austenite tshwm sim ntawm qhov kub qis dua piv rau annealing vim qhov txias dua. Vim nws, cov khoom hloov pauv pearlite yog qhov zoo dua thiab qhov kev ncua deb ntawm ob lub carburite daim hlau nyob sib ze yog me dua.
Lub ntsiab sib txawv ntawm tag nrho cov annealed thiab normalized qhov chaw yog hais tias lub softness (thiab machinability) ntawm ib tug tag nrho annealed ib feem yog uniform thoob plaws hauv ib feem vim hais tias tag nrho ib feem yog raug rau cov tswj lub qhov cub txias. Nrog cov qauv tsim, qhov cua txias tsis sib xws, nyob ntawm qhov geometry ntawm ib feem, uas ua rau cov khoom tsis sib xws thoob plaws hauv ib feem.
Normalizing tshem tawm cov kev ntxhov siab sab hauv los ntawm kev ua haujlwm txias, thiab kev loj hlob ntawm cov qoob loo yog txwv los ntawm qhov txias txias, yog li cov khoom siv hluav taws xob (lub zog thiab hardness) ntawm cov hlau tsis muaj zog yog superior rau cov hlau annealed.
Lub machined nto zoo ntawm normalized qhov chaw kuj superior rau cov annealed qhov chaw. Cov nyhuv no yog tshwm sim los ntawm qhov nce ductility ntawm annealed steel, uas nyiam tsim cov kua muag nyob rau hauv lub machined nto.
