知识与财富的链接
将膨化硝铵与柴油按94.55.5质量比混制为铵油炸药,并与混合稀释剂按不同质量比混合后,以自然堆积状态和不同的铺设药厚,测量混合炸药爆速和密度.结果显示,当稀释剂含量从20%增加到60%时,混合炸药的爆速(药厚:30 mm)由3100 m·s-1降到2100 m·s-1,炸药的密度也由0.615 g·cm-3增加到0.76 g·cm-3(稀释剂含量: 20%～50%);稀释剂含量为50%的混合炸药,当药厚在25～50 mm范围内时,爆速保持在2300～2360 m·s-1之间.用含35%稀释剂的混合膨化铵油炸药对SS304/16MnR进行的爆炸焊接试验表明,该混合炸药能够用于金属材料的爆炸焊接.
The expanding ANFO explosive was produced by expanding ammonium nitrate (AN) and fuel oil (FO) with mass ratio of 94.5：5.5. To obtain low detonation velocity expanding explosive,commercial attenuant was blended into the expanding ANFO explosive. Then,the detonation velocity and density of compound explosive was measured on the condition of nature pile-up state and different loading thickness. Results show that detonation velocity of compound explosive declines from 3100 m·s-1 to 2100 m·s-1 when mass ratio of attenuant rises from 20% to 60% (explosive loading thickness is 30 mm ),and the density of compound explosive rises from 0.615 g·cm-3 to 0.76 g·cm-3 when mass ratio of attenuant rises from 20% to 50%. The detonation velocity of compound explosive with 50% attenuant content is 2300-2360 m·s-1,when the explosive loading thickness is 25-50 mm. SS304 cladding to 16MnR experiment was performed by using compound explosive with 35% attenuat content,and the results show that the compound explosive can be used in metal explosive welding.
