Thaum lub sij hawm magnesium hmoov tawg, Qee qhov raug tshem tawm magnesium hais ignite thaum sib cuag nrog lub tshav kub, tsim kom muaj cov pa hluav taws xob thiab cov pa oxygen sib xyaw. Qhov no combustion generates cua sov, thawb cov khoom siv roj kub kub rau hauv qhov chaw preheating thiab nce qhov kub ntawm cov khoom tsis tau hlawv.
Ib txhij, cov hluav taws xob hluav taws xob los ntawm cov nplaim hluav taws kub kub hauv thaj tsam tshuaj tiv thaiv ua rau cov magnesium hais’ kub nyob rau hauv lub preheating cheeb tsam. Thaum lawv mus txog qhov ignition point, combustion pib, thiab nce siab ntxiv accelerates qhov hlawv. Cov txheej txheem rov ua dua no ua rau cov nplaim taws sib kis thiab cov tshuaj tiv thaiv, ua rau muaj kev nce siab hauv siab thiab thaum kawg ua rau muaj kev tawg.