Fabrication of Porous Aluminum Alloy by Precursor Method Using Vertical Type Twin-Roll Casting
Fabrication of Porous Aluminum Alloy by Precursor Method Using Vertical Type Twin-Roll Casting
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立式双辊铸造前驱体法制备多孔铝合金
DOI：
10.11279/jfes.92.577
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
鈴木 良祐，増渕 匠，西田 進一，荘司 郁夫，半谷 禎彦，藤井 英俊，松原 雅昭
中科院分区：
文献类型：
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作者：
R. Ando;M. Todai;J. Narshima;M. Mizoshiri;鈴木 良祐，増渕 匠，西田 進一，荘司 郁夫，半谷 禎彦，藤井 英俊，松原 雅昭
为了建立一种低成本的泡沫铝制造工艺，本研究采用双辊铸轧法制备泡沫铝，并对其孔隙率和泡孔形态进行了评价。将纯铝和氧化铝粉末（增稠剂）和氢化钛粉末（发泡剂）添加到ADC 12铝合金熔体中，并混合熔体。然后将熔体进料到立式大型双辊铸造机中以获得可发泡前体。将从前驱体上切下的试样置于电炉中在675℃下加热以获得泡沫铝。对泡沫铝进行了密度测量、截面积观察和泡孔形貌分析。采用双辊铸轧先驱体法制备了平均孔隙率为60%的泡沫铝。平均孔径为1.34 mm，平均孔数为52个。
To establish a manufacturing process for aluminum foams at low costs, in this study, we applied twin-roll casting to manufacture aluminum foams with the precursor method and performed evaluation of its porosity and cell morphology. Pure aluminum and alumina powders (thickening agents) and titanium hydride powder (foaming agent) were added to ADC12 aluminum alloy melt, and the melt was mixed. The melt was then fed into a vertical type large twin-roll caster to obtain a foamable precursor. The specimen cut from the precursor was placed and heated in an electric furnace at 675℃ to obtain aluminum foams. Density measurement, observation of the cross-section area and cell morphology analysis of the aluminum foams were carried out. Aluminum foams with average porosity of 60%, could be obtained by precursor method using twin-roll casting. The average diameter and number of pores were 1.34 mm and 52 pores, respectively.