Abstract: The feasibility of gasoline used for cutting gas is discussed in thispaper. Experiment shows that the initial boiling point of the gasoline added about 5% additive-TJ-1 has hardly changed, but the boiling range of the gasoline becomes relatively narrow, and the corresponding boiling point decreases about 10 to 20(C.By adding about TJ-2 comburant of 0.1 %- 0.5% in gasoline, the combustion rate of the gasoline increases dramatically, the length of flame front with high-pressure oxygen gas increases from 2 centimeters to 12 centimeters. Without any effect on performance of cutting tool, an appropriate way of vaporizing gasoline is employed, the cutting thickness will reach 12 centimeters or more. In addition, the cutting rate is fast, the notch is small, non-staggered and smooth. Therefore, the technique will be valuable for popularization.

Key words: Gasoline, Cutting, Additive, Combustion rate