Cov pa pa tawm ntawm lub hood annealing rauv muaj ntau cov oxides, xws li cov pa roj carbon dioxide, sulfur dioxide, nitrogen oxides, thiab lwm yam. Cov oxides no tawm cov nplaim xiav thaum hlawv hauv huab cua. Tsis tas li ntawd, cov pa pa tawm ntawm lub hood annealing rauv kuj muaj qee yam tshuaj lom, xws li chlorides, sulfides, thiab lwm yam, uas tawm cov nplaim ntsuab thaum hlawv hauv huab cua.
Thaum cov pa tso pa tawm ntawm lub hood hom annealing rauv kub hnyiab, cov pa luam yeeb ntau yog tsim, uas muaj ntau cov tshuaj lom xws li chlorides, sulfides, thiab lwm yam, uas ua rau tib neeg noj qab haus huv. Yog li ntawd, thaum siv lub hood hom annealing rauv, qhov cua yuav tsum raug coj mus rau hauv tus account kom tsis txhob muaj kuab paug ib puag ncig.
