1. Cov khob iav tsis muaj peev xwm txiav thiab ua tiav. Lub iav tsuas yog ua tiav rau qhov yuav tsum tau ua ntej ua ntej tempering, thiab ces tempered.
2. Txawm hais tias lub zog ntawm tempered iav yog muaj zog tshaj qhov iav, iav tempered muaj peev xwm ntawm kev cuam tshuam rau nws tus kheej (nws tus kheej) thaum qhov kub qhov txawv txav hloov, thiab cov iav tsis zoo muaj tsis muaj kev sib tawg.
3. Cov ntom ntawm cov iav tempered yuav muaj unevenness thiab lub thickness thickness. Yog vim li cas rau qhov thinning yog tias tom qab lub khob khib nyiab los ntawm kub pob zeb, nws tau ceev ceev los ntawm lub zog muaj zog cua, kom lub khob haus dej sib txawv ntawm cov iav me me thiab qhov siab siab loj, yog li ntawd iav yog thinner tom qab tempered tshaj ua ntej ua tempered. Raws li ib txwm muaj, 4-6MM iav yog thinned los ntawm 0.2-0.8MM tom qab tempering, thiab 8-20MM iav yog thinned by 0.9-1.8MM tom qab tempering. Lub degree ntawm kev tshwj xeeb nyob ntawm cov khoom, uas yog vim li cas tempered iav tsis tau yuav mirrored.
