CaCO3在铝熔体中的热分解特性及在泡沫铝制备中的应用
Thermal Decomposition Characteristics of CaCO3 in Aluminum Melt and Its Used in Preparation of Foamed Aluminum
摘 要
通过热分析方法对CaCO3粉在铝熔体和氮气中的热分解特性进行了分析, 在此基础上, 采用CaCO3作为增黏发泡剂制备泡沫铝。结果表明: 在铝熔体中, CaCO3连续升温分解反应温度比在氮气中的降低了20～30 ℃, 在700 ℃恒温过程中分解匀速稳定, 与泡沫化温度相匹配; 铝熔体泡沫化过程中, CaCO3热分解只生成CO2而没有CO; 采用CaCO3增黏发泡制备的泡沫铝, 孔隙均匀, 孔结构为球形或类球形。
CaCO3
热分析
热分解
foamed aluminum
CaCO3
thermal analysis
thermal decomposition
Abstract
The thermal decomposition characteristics of CaCO3 powders in aluminum melt and N2 were analyzed by the thermal analysis method. On the basis, foamed aluminum was prepared with CaCO3 as thickening and blowing agent. The results show that the decomposition temperature of CaCO3 in the aluminum melt was lower by 20-30 ℃ than that in N2, the decomposition was uniform and stable at the constant temperature of 700 ℃, which matched with the foaming temperature. During the foaming process of aluminum melt, CaCO3 decomposed to CO2 only, no CO. The foamed aluminum prepared by using CaCO3 as thickening and blowing agent had uniform porosity and spherical or near spherical pore structure.
中图分类号 TG146.2
所属栏目
基金项目
收稿日期 2010/10/6
修改稿日期 2011/8/26
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备注胡古月(1985-), 女, 山东济宁人, 硕士研究生。
引用该论文: HU Gu-yue,CHU Xu-ming,HE Si-yuan,HE De-ping. Thermal Decomposition Characteristics of CaCO3 in Aluminum Melt and Its Used in Preparation of Foamed Aluminum[J]. Materials for mechancial engineering, 2011, 35(12): 63～65
胡古月,褚旭明,何思渊,何德坪. CaCO3在铝熔体中的热分解特性及在泡沫铝制备中的应用[J]. 机械工程材料, 2011, 35(12): 63～65
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参考文献
【1】何德坪.超轻多孔金属[M]. 北京:科学出版社,2008.
【2】蒂吉斯切H P, 克雷兹特B.多孔泡沫金属[M]. 左孝青,周芸,译.北京:化学工业出版社,2005.
【3】SOSNICK B.Process for making foam like mass of metal: US, 2434775 [P]. 1948-01-20.
【4】ALLEN B C, MOTE M W, SABROFF A M.Method of making foamed Al: US,3087807[P]. 1963-04-30.
【5】HA W, KIM S K, JO H H.et al.Optimization of process variables for manufacturing Al foam materials using Al scrap[J]. Materials Science and Technology,2005,21(4):495-499.
【6】吴照金,王艳明,何德坪.铝熔体泡沫化制备胞状铝的研究进展[J]. 铸造,1999,48(4):1-5.
【7】王红怡,赵军,宋苇,等.TiH2的SiO2凝胶包裹对其释氢的影响[J]. 东南大学学报:自然科学版,1999,29(6):145-148.
【8】周芸,左孝青,许星,等.泡沫Al-6Si合金的制备工艺研究[J]. 稀有金属,2004,28(1):191-194.
【9】方吉祥,赵康,谷臣清.化学法制备Al2O3包覆TiH2颗粒发泡剂[J]. 中国有色金属学报,2002,12(6):1205-1209.
【10】罗洪杰,姚广春,刘宜汉,等.粉煤灰增黏制备泡沫铝材料的研究[J]. 东北大学学报:自然科学版,2005,26(3):274-277.
【11】左孝青,周芸,赵国宾,等.CaCO3发泡剂制备泡沫铝工艺研究[J]. 稀有金属,2004,28(1):195-198.
【12】周向阳,刘希泉,李劼,等.采用新型发泡剂制备泡沫铝[J]. 中国有色金属学报,2006,16(11):1983-1987.
【13】周全,吴蒙.碳酸镁发泡剂制备泡沫铝的研究[J]. 铸造技术,2009,30(2):257-259.
【14】YANG Dong-hui, HURA B Y, YANG Shang-run.Study on fabrication and foaming mechanism of Mg foam using CaCO3 as blowing agent[J]. Journal of Alloys and Compounds,2008,461:221-227.
【15】何思渊,魏永生,丁龙,等.泡沫铝及铝合金的增黏发泡制备方法:中国,CN101082092 [P]. 2007-12-05.
【2】蒂吉斯切H P, 克雷兹特B.多孔泡沫金属[M]. 左孝青,周芸,译.北京:化学工业出版社,2005.
【3】SOSNICK B.Process for making foam like mass of metal: US, 2434775 [P]. 1948-01-20.
【4】ALLEN B C, MOTE M W, SABROFF A M.Method of making foamed Al: US,3087807[P]. 1963-04-30.
【5】HA W, KIM S K, JO H H.et al.Optimization of process variables for manufacturing Al foam materials using Al scrap[J]. Materials Science and Technology,2005,21(4):495-499.
【6】吴照金,王艳明,何德坪.铝熔体泡沫化制备胞状铝的研究进展[J]. 铸造,1999,48(4):1-5.
【7】王红怡,赵军,宋苇,等.TiH2的SiO2凝胶包裹对其释氢的影响[J]. 东南大学学报:自然科学版,1999,29(6):145-148.
【8】周芸,左孝青,许星,等.泡沫Al-6Si合金的制备工艺研究[J]. 稀有金属,2004,28(1):191-194.
【9】方吉祥,赵康,谷臣清.化学法制备Al2O3包覆TiH2颗粒发泡剂[J]. 中国有色金属学报,2002,12(6):1205-1209.
【10】罗洪杰,姚广春,刘宜汉,等.粉煤灰增黏制备泡沫铝材料的研究[J]. 东北大学学报:自然科学版,2005,26(3):274-277.
【11】左孝青,周芸,赵国宾,等.CaCO3发泡剂制备泡沫铝工艺研究[J]. 稀有金属,2004,28(1):195-198.
【12】周向阳,刘希泉,李劼,等.采用新型发泡剂制备泡沫铝[J]. 中国有色金属学报,2006,16(11):1983-1987.
【13】周全,吴蒙.碳酸镁发泡剂制备泡沫铝的研究[J]. 铸造技术,2009,30(2):257-259.
【14】YANG Dong-hui, HURA B Y, YANG Shang-run.Study on fabrication and foaming mechanism of Mg foam using CaCO3 as blowing agent[J]. Journal of Alloys and Compounds,2008,461:221-227.
【15】何思渊,魏永生,丁龙,等.泡沫铝及铝合金的增黏发泡制备方法:中国,CN101082092 [P]. 2007-12-05.
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