微爆性复合球体爆裂反应过程研究
Study on the burst reaction process of micro-explosive composite sphere
彭志翔 1常桂华 2张艺舰 3王晓峰1
作者信息
- 1. 陕西科技大学,陕西 西安 710021
- 2. 鞍钢钢铁研究院,辽宁 鞍山 114000
- 3. 燕山大学,河北 秦皇岛 066000
- 折叠
摘要
针对基于微细异相净化钢液技术生产稳定控制要求,以微爆性复合球体为研究对象进行试验和数值模拟研究,基于HJC模型研究复合球体爆裂反应时动能和等效应变的影响规律,分析起爆位置、复合球体各层尺寸及原料配比等因素对爆裂反应的影响,得到如下结论:制粉过程中CaCO3 粉末分布均匀时能够均匀起爆达到最佳效果;爆裂发生时产生的动能大小与质点的飞散距离成正比,相同尺寸和密度的复合球体多点均匀起爆时动能最大,弥散效果最佳,覆盖范围最广;复合球体的外层厚度越小反应效果越佳,中间层厚度为5mm时反应产物飞散距离最远;复合球体CaCO3与CaO的配比在1:10 时反应产物分布最广泛.
Abstract
Aiming at the stable control requirements of production and application based on micro heterogeneous purification technology of molten steel technology,the micro-explosive composite sphere is taken as the research object to carry out experimental and numerical simulation research.Based on the HJC model,the influence of kinetic energy and equivalent strain on the explosive reaction of composite sphere was studied,and the factors affecting the optimal state of the reaction,analysis of multi-point uniform detonation state of the composite sphere layer size and raw material ratios and other factors on the impact of the bursting reaction,to get the following conclusions:When the distribution of CaCO3 powder is uniform in the process of powder preparation,the uniform initiation can achieve the best effect;The size of the kinetic energy generated when the burst is proportional to the dispersion distance of the mass,the same size and density of the composite sphere,multi-point homogeneous detonation of the kinetic energy is the largest,the dispersion effect is the best,the widest range of coverage;The smaller the thickness of the outer layer of the composite spheres,the better the reaction effect,and the middle layer thickness of 5 mm is the furthest away from the reaction products;The ratio of CaCO3 to CaO is 1:10,the coverage is the most extensive.
关键词
洁净钢/复合球体/夹杂物/数值模拟/爆裂反应/球体结构Key words
clean steel/composite sphere/inclusions/numerical simulation/burst reaction/spherical structure引用本文复制引用
基金项目
国家自然科学基金(52174320)
西安市重点产业链核心技术攻关项目(2022JH-ZCZC-0056)
西安市科技计划(23ZDCYJSGG0043-2022)
出版年
2024
NETL
NSTL
万方数据