1. Ua kom tiav Atsis muaj -TnwsBasic& CoreProcess
Ua kom tiav annealing yog qhov yooj yim tshaj plaws thiab dav siv cov txheej txheem kho cua sov rau cov kav dej titanium. Nws lub hom phiaj tseem ceeb yog kom tshem tawm tag nrho cov kev ua hauj lwm hardening thiab residual kev nyuaj siab generated los ntawm lub txias ua hauj lwm txheej txheem ntawm cov yeeb nkab, restore nws plasticity thiab toughness, thiab tau ib tug ruaj khov thiab uniform microstructure. Nyob rau hauv tus txheej txheem, lub titanium raj yog rhuab saum nws recrystallization kub, thiab tom qab txaus rwb thaiv tsev, nws cools down ntawm ib tug tej yam ceev. Qhov kev kho mob no muab cov khoom siv zoo heev rau titanium raj thiab yog cov txheej txheem kev kho cua sov hauv xeev rau feem ntau cov titanium raj hauv cov txheej txheem nruab nrab lossis ua cov khoom kawg, kom ntseeg tau cov khoom siv hauv kev ua tom ntej lossis siv.
2. Kev nyuaj siabRkev dimAtsis txaus ntseeg -TxavLcalStabilization
Kev ntxhov siab nyem annealing yog ib feem ntawm annealing nrog ib qho yooj yim thiab meej lub hom phiaj: xaiv tshem tawm cov kev ntxhov siab sab hauv uas qhia los ntawm cov txheej txheem tshwj xeeb xws li vuam, khoov lossis ncaj yam tsis muaj qhov hloov pauv ntawm microstructure thiab txhua yam khoom ntawm cov khoom. Nws yog feem ntau ua nyob rau hauv qis kub piv rau ua kom tiav annealing, aiming kom tsis txhob recrystallization thiab lub zog poob ntawm cov khoom. Cov txheej txheem no tseem ceeb heev rau kev tswj xyuas qhov kev ruaj ntseg ntawm cov khoom, xws li hauv kev tshaj tawm - vuam kev kho ntawm cov kav dej welded los yog cov khoom uas yuav tsum tau ua kom raug siab, tiv thaiv kom tsis txhob deformation lossis tawg los ntawm kev ntxhov siab thaum khaws cia lub zog qub ntawm cov yeeb nkab.
3. Lub tshuab nqus tsevAtsis muaj -Itsis tseem ceebQualityAkev ruaj ntseg
Lub tshuab nqus tsev annealing tsis yog ib hom kev sib koom ua ke, tab sis ib qho tseem ceeb ntawm kev siv ib puag ncig uas yog ib qho yuav tsum muaj rau tag nrho cov txheej txheem siab - zoo titanium raj annealing txheej txheem. Titanium yog cov hlau tsis tshua muaj zog uas cuam tshuam nrog oxygen, nitrogen, thiab lwm yam ntawm qhov kub thiab txias, ua rau lub nkig txheej ntawm qhov chaw thiab absorbing gases ua rau kev ua haujlwm tsis zoo. Nqus annealing yog ua nyob rau hauv lub tshuab nqus tsev vacuum kaw heev los tsim ib qho oxidation -dawb ib puag ncig uas tiv thaiv kev sib kis thiab oxidation ntawm cov hlab thaum kho cua sov. Qhov no tsis yog tsuas yog tus yuam sij kom ntseeg tau tias du thiab tsis zoo -dawb nto ntawm titanium raj, tab sis kuj yog ib qho tsim nyog txhais tau tias kom tsis txhob muaj hydrogen embrittlement thiab xyuas kom meej nws cov kev ua haujlwm tseem ceeb.
4. IsothermalAtsis txaus ntseeg -TnwsPursuitOf UkawgSkev ruaj ntseg
Isothermal annealing yog txheej txheem ntau dua thiab meej, feem ntau yog siv rau hauv thiab + titanium alloy raj nrog cov kev cai nruj rau ntev - lub sij hawm thermal stability. Cov txheej txheem siv ib qho tshwj xeeb "ob-txoj kev": lub raj yog thawj rhuab mus rau qhov kub thiab txias tshaj qhov hloov theem taw tes rau austenitization, ces sai sai hloov mus rau lub cub tawg nrog ib tug qis kub thiab khaws cia nyob rau hauv qhov kub thiab txias rau lub sij hawm ntev, thiab thaum kawg huab cua - txias rau chav tsev kub. Cov txheej txheem no yog tsim los pab txhawb kev hloov pauv txaus ntawm cov ntaub so ntswg mus rau theem ruaj khov thiab sib npaug, yog li zam kev hloov pauv hauv lub koom haum thiab kev ua haujlwm hauv kev siv tom ntej. Txawm hais tias tus nqi siab dua, isothermal annealing yog ib qho tseem ceeb lav rau titanium raj siv nyob rau hauv siab -kawg teb xws li aerospace los xyuas kom meej tias lawv yog foolproof nyob rau hauv hnyav ib puag ncig.
5. RecrystalizationAtsis txaus ntseeg -Tqhov teeb meemRkev ua qauv& Pkev ua haujlwmRtiam
Recrystallization annealing tuaj yeem suav tias yog daim ntawv thov sib sib zog nqus ntawm kev ua kom tiav, thiab nws lub hom phiaj tseem ceeb yog kom rov ua kom tiav cov titanium raj uas tau dhau los ua cov yas txias deformation los ua ib qho tshiab, distortion-dawb isoaxial nplua- cov qauv nplej. Thaum qhov txias ua hauj lwm deformation loj txaus, lub zog siab distortion yog khaws cia rau hauv lub raj, uas muab lub zog tsav rau recrystallization. Los ntawm kev tswj xyuas qhov kub thiab txias thiab tuav lub sijhawm, cov txheej txheem no tuaj yeem tshwm sim thiab ua tiav, yog li tshem tawm tag nrho cov kev ua haujlwm hardening thiab "regenerating" plasticity thiab toughness ntawm cov khoom. Cov txheej txheem no tshwj xeeb tshaj yog tsim rau cov kav dej uas tau dhau los ua qhov txias txias ua haujlwm hauv nruab nrab lossis tiav theem, thiab yog tsim los muab kev pom zoo microstructure hauv paus rau lawv cov txheej txheem tom ntej lossis kev siv nyab xeeb.
