1. Cov ntsiab lus yuav tsum tau them sai sai rau thaum txiav forgings
Vim lub thickness oxide nplai nyob rau saum npoo ntawm forging thiab qhov tseeb hais tias qhov hluav taws kub taw tes ntawm oxide nplai yog siab tshaj qhov melting point, txiav kev cuam tshuam yuav tshwm sim thaum txiav. Yog li ntawd, ua ntej tshem tawm cov nplai oxide nyob rau sab sauv thiab qis ntawm qhov chaw txiav ua ntej txiav.
2. Cov ntsiab lus tseem ceeb ntawm kev tswj cov deformation ntawm lub workpiece
Kev npaj tsim nyog ntawm cov roj txiav txoj kev tuaj yeem tswj tau cov haujlwm deformation zoo
3. Cov ntsiab lus tseem ceeb rau tuab phaj txiav
Nyob rau hauv tuab phaj txiav, qhov kub thiab txias txo los ntawm sab saum toj nto down. Thaum pib ntawm kev txiav, cov pa oxygen maj mam nce ntxiv, thiab thaum kawg nce mus txog qhov sib npaug ntawm cov thickness ntawm cov phaj steel.