New lift powder which is composed of poly (oxymethylene), calcium peroxide and aluminum powder was studied. It was suggested that the performance of the lift powder was attributed to the high pressure product gases evolved from the rapid thermal decomposition of poly (oxymethylene) activated by the thermite reaction between calcium peroxide and aluminum. The lifting test of an aerial shell (dia.=83mm and weight=20g) was carried out using the mixture of poly (oxymethylene), calcium peroxide and aluminum loaded at the bottom of a fireworks mortar . The initial velocity of the shell was 96 to 107 ms-1and the pressure in the mortar was 52 to 82 kPa, which showed the same potential as black powder with the initial velocity of 124 ms-1 and 62kPa under the same conditions.
過酸化カルシウム，アルミニウムおよびポリオキシメチレンの混合物について圧力試験，模擬の打揚花火の打揚試験 および３号玉や五号玉を使った打揚試験をおこなった。 この混合物の反応はまず，過酸化カルシウムとアルミニウムのテルミット反応が起こり，それによってポリオキシメ チレンの分解が開始し多量のガスを発生することにより推進力が得られると考察した。 三号玉や五号玉を使った打揚試験において打揚花火の出口速度は95〜107ms−１で打揚筒内の圧力は52〜82kPaとなり，黒 色火薬を用いた場合とほぼ同じであった。
fireworks, lift powder, calcium peroxide, poly (oxymethylene), aluminum.