Tom qab forgingKev kho cua sov ntawmloj forgingstom qabforgingtsim, tam sim ntawd tom qab kev kho cua sov hu uatom qab forgingKev kho cua sov.Lub hom phiaj ntawmtom qab forgingKev kho cua sov ntawm cov forgings loj yog feem ntau yog de-kev ntxhov siab, recrystallize grain refining thiab dehydrogenation tib lub sijhawm.
1. Recrystallization kev kho mob Tom qab ob peb recrystallization kev kho mob ntawm loj forgings, grain refinement, microstructure txhim kho, kev ua tau zoo.
2. Dehydrogen annealing yuav txo cov hydrogen hauv lubforgings mus rau qhov txwv hydrogen cov ntsiab lus hauv qab no, thiab ua kom nws cov khoom sib faib, kom tsis txhob muaj kev phom sij ntawm cov pob dawb, hydrogen embrittlement.

Lub solubility thiab diffusion coefficient ntawm hydrogen nyob rau theem 7 thiab theem A yog txawv, tshwj xeeb tshaj yog cov uas tsis muaj solubility thiab loj diffusion coefficient ntawm hydrogen nyob rau theem A, uas ua rau hydrogen tsis tu ncua diffuse sab nraud thaum lub sij hawm annealing txheej txheem.Dehydrogenation annealing feem ntau ua ke nrog recrystallization.Qhov kub ntawm dehydrogen annealing feem ntau yog 650 ℃.Tom qab annealing, nws yuav tsum tau txias kom maj mam li sai tau los tiv thaiv kev ntxhov siab tshiab.Kev txias txias yog muab faib ua ob theem: siab tshaj 400 ℃, vim yog cov yas zoo ntawm cov hlau, kev ntxhov siab sab hauv tsis yooj yim rau kev tsim, yog li cov cua txias tuaj yeem ceev dua;Hauv qab 400 ℃, qhov cua txias yuav qeeb.Rau forgings nrog ntau cov ntsiab lus alloy thiab kev ua haujlwm siab dua, ib lossis ntau qhov kev kho cua sov yuav tsum tau ua tom qab forging, txhawm rau txhim kho cov qauv thiab kev ua haujlwm ntawm forgings.