爆破器材Issue(6)：43-47,5.DOI:10.3969/j.issn.1001-8352.2015.06.010
糊精氮化铅球形化工艺参数的研究
Research on Technological Parameters of Spherical Dextrin Lead Azide
许勇 1王日强 1徐晓峰 2裴刚1
作者信息
- 1. 西安庆华民用爆破器材股份有限公司 陕西西安，710025
- 2. 北京奥信化工科技发展有限责任公司 北京，100040
- 折叠
摘要
Abstract
Through the charge-pressing floating test and fluxion property determination of initiating charge in organic glass shell, it is found that reduction of loading performance, bad fluxion property and easy floating of charge-pressing would occur with the increasing of mass fraction of particles with grain size less than 45μm in spherical dextrin lead azide. It is also found that charge-pressing floating will be caused by frequently burst pressure and instantaneous-explosion of MS delay electric detonator. Two quantity control indexes were proposed including bulk density≥2. 00 g/cm3 , and mass frac-tion of particles with grain size less than 45 μm ≤20%. Preparation process is as follows:3% ( mass fraction) sodium nitrite solution is added into 8% (mass fraction) lead nitrate solution, the mass ratio of water and charge is 30︰1, addi-tional amount of industry acidity dextrin is 5% (mass fraction) , alkalinity of sodium nitride solution is 0. 080%, and the certain feeding speed and stirring intensity are maintained at the temperature of 60℃. The manufactured initiating charge can meet the requirements of detonator assembly.关键词
糊精氮化铅/球形化/堆积密度/结晶尺寸/化合工艺Key words
dextrin lead azide/spherical/bulk density/crystal size/chemical combination分类
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许勇,王日强,徐晓峰,裴刚..糊精氮化铅球形化工艺参数的研究[J].爆破器材,2015,(6):43-47,5.
