广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
19期
61-63
,共3页
Al0. 5 Mg0. 5/H2 O体系%反应特性%影响因素
Al0. 5 Mg0. 5/H2 O體繫%反應特性%影響因素
Al0. 5 Mg0. 5/H2 O체계%반응특성%영향인소
Al0. 5 Mg0. 5/H2 O reaction system%reaction characteristics%influence factor
利用联机电脑系统实时监测了高压反应釜内Al0.5 Mg0.5/H2 O体系的反应过程,针对反应体系的T-t曲线进行分析,提取并定义了反应过程的三个特征温度点和三个特征参数,从而建立了Al0.5 Mg0.5/H2 O反应的评价体系,作为评价Al0.5 Mg0.5/H2 O体系反应性能的标准。根据此方法,分析研究了粉末粒径、存储条件、加热功率和水燃摩尔比对Al0.5 Mg0.5/H2 O反应特性的影响,得出体系的最佳反应条件。结果表明,粒径为500目的合金粉末放热性能最好,密封存储的合金放热更加完全,合金粉末具有更高的转化率;高功率加热条件使得体系能够在更短时间内开始反应,更有利于激发反应体系进行集中高效释放能量; Al0.5 Mg0.5/H2 O体系的最佳水燃摩尔比为1.75:1。
利用聯機電腦繫統實時鑑測瞭高壓反應釜內Al0.5 Mg0.5/H2 O體繫的反應過程,針對反應體繫的T-t麯線進行分析,提取併定義瞭反應過程的三箇特徵溫度點和三箇特徵參數,從而建立瞭Al0.5 Mg0.5/H2 O反應的評價體繫,作為評價Al0.5 Mg0.5/H2 O體繫反應性能的標準。根據此方法,分析研究瞭粉末粒徑、存儲條件、加熱功率和水燃摩爾比對Al0.5 Mg0.5/H2 O反應特性的影響,得齣體繫的最佳反應條件。結果錶明,粒徑為500目的閤金粉末放熱性能最好,密封存儲的閤金放熱更加完全,閤金粉末具有更高的轉化率;高功率加熱條件使得體繫能夠在更短時間內開始反應,更有利于激髮反應體繫進行集中高效釋放能量; Al0.5 Mg0.5/H2 O體繫的最佳水燃摩爾比為1.75:1。
이용련궤전뇌계통실시감측료고압반응부내Al0.5 Mg0.5/H2 O체계적반응과정,침대반응체계적T-t곡선진행분석,제취병정의료반응과정적삼개특정온도점화삼개특정삼수,종이건립료Al0.5 Mg0.5/H2 O반응적평개체계,작위평개Al0.5 Mg0.5/H2 O체계반응성능적표준。근거차방법,분석연구료분말립경、존저조건、가열공솔화수연마이비대Al0.5 Mg0.5/H2 O반응특성적영향,득출체계적최가반응조건。결과표명,립경위500목적합금분말방열성능최호,밀봉존저적합금방열경가완전,합금분말구유경고적전화솔;고공솔가열조건사득체계능구재경단시간내개시반응,경유리우격발반응체계진행집중고효석방능량; Al0.5 Mg0.5/H2 O체계적최가수연마이비위1.75:1。
The computer system was employed to monitor the reaction processes of Al0. 5 Mg0. 5/H2 O systems and the T-t curves of the Al0. 5 Mg0. 5/H2 O reaction systems were analyzed. Three characteristic temperature points and three reaction characteristics were extracted and defined. An evaluation system of Al0. 5 Mg0. 5/H2 O reactions based on these was established to study the properties of the systems. The effects of particle size, storage condition, heating power, and mole ratio of Al0. 5 Mg0. 5/H2 O were investigated according to the established evaluation standard. The results showed that the 500-mesh Al0. 5 Mg0. 5 alloy powder had the best heat release performance. Sealed storage alloy could release heat more completely. High heating power could facilitate the reaction of the systems in a shorter time and was conductive to the concentrated and efficient heat release. It was observed that the best mole ration of H2 O/Al0. 5 Mg0. 5 in the reation system was 1. 75:1.