Kutalika kwa nthawi yayitali, nthawi yokhazikika imakhala yayitali kutentha kwambiri, mpweya wabwino mu ng'anjo ndi mpweya wamadzi mu nthunzi yamadzi kuphatikizapo maatomu achitsulo amatchedwa oxidation. Zotheka zopangidwa ndi zomata za in oxide pamwamba pa khungu la khungu lazitsulo, monga momwe akuperekera zisanachitike kuchotsedwa, yeretsani kapena mutatha kutola, pang'ono kugwedezeka.KukhululukaKupitirana, moyenera mukamataya kukula kwa geometry, chilolezo, kapena chifukwa chosakwanira ndikupanga ziwalozo zakuda pa scrap, ndizomwe zimachitika paAmwalira Kutuluka.

Njira zopangira makhiadation ndi:
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.
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. kuchuluka kwa oxidi.