新兴铝合金模板支撑体系在建筑行业具有良好的发展前景,然而配模设计中存在表达方式不科学、工程量统计繁琐、协同困难等问题,于是提出将BIM(Building Information Modeling)技术引入到铝模板体系中,并结合BIM技术的优势建立铝模板BIM模...新兴铝合金模板支撑体系在建筑行业具有良好的发展前景,然而配模设计中存在表达方式不科学、工程量统计繁琐、协同困难等问题,于是提出将BIM(Building Information Modeling)技术引入到铝模板体系中,并结合BIM技术的优势建立铝模板BIM模型,探讨配模设计中的实施流程。BIM技术在铝模板设计中的尝试,对建筑信息模型(BIM)的推广具有重要的意义。展开更多
The preparation of crystal form of Al（OH）3 from the deposited residues of anodizing lines in the process of producing aluminum was studied. Alkali is used to dissolve the residue, and then blow CO2 is bellowed in, f...The preparation of crystal form of Al（OH）3 from the deposited residues of anodizing lines in the process of producing aluminum was studied. Alkali is used to dissolve the residue, and then blow CO2 is bellowed in, finally a kind of useful crystal Al（OH）3 is accessed by hydrolysis. The yield of the crystal Al（OH）3 was affected by temperature, pH and flow rate of CO2. The experimental results showed that under constant stirring, the optimized conditions was to control the temperature of 75-85℃, pH 7.5-9.0, CO/flow rate 60-80 mL/min. Using this method, the purpose of recovering valuable resources of Al, cleaning up the environment, and recycling of the by-product of Na2CO3 was achieved. It was of good economic and social benefits.展开更多
文摘新兴铝合金模板支撑体系在建筑行业具有良好的发展前景,然而配模设计中存在表达方式不科学、工程量统计繁琐、协同困难等问题,于是提出将BIM(Building Information Modeling)技术引入到铝模板体系中,并结合BIM技术的优势建立铝模板BIM模型,探讨配模设计中的实施流程。BIM技术在铝模板设计中的尝试,对建筑信息模型(BIM)的推广具有重要的意义。
文摘The preparation of crystal form of Al（OH）3 from the deposited residues of anodizing lines in the process of producing aluminum was studied. Alkali is used to dissolve the residue, and then blow CO2 is bellowed in, finally a kind of useful crystal Al（OH）3 is accessed by hydrolysis. The yield of the crystal Al（OH）3 was affected by temperature, pH and flow rate of CO2. The experimental results showed that under constant stirring, the optimized conditions was to control the temperature of 75-85℃, pH 7.5-9.0, CO/flow rate 60-80 mL/min. Using this method, the purpose of recovering valuable resources of Al, cleaning up the environment, and recycling of the by-product of Na2CO3 was achieved. It was of good economic and social benefits.
