Bonding process for aluminum foams using foaming of aluminum precursor

利用铝前驱体发泡的泡沫铝粘合工艺

• 批准号: 23860012
• 负责人: SUZUKI Ryosuke
• 金额: $ 2万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23860012/
• 关键词: ポーラスアルミニウム; アルミニウム合金; 粉末冶金; 接合; アルミニウム; 4点曲げ試験; 発泡; 気孔率; ろう付け

The foaming bonding was proposed as a bonding method for aluminum foams. The aluminum foams can be bonded without collapse of the cell wall and density increase. In this study, the effectiveness of the foaming bonding was investigated experimentally. The brazing precursor was manufactured from brazing aluminum alloy. The precursor foams by heating because the foaming agent particles were dispersed in the precursor. The precursor was put into two grooved pure aluminum foams and heated over the melting point of the precursor. Two grooved pure aluminum foams can be bonded by foaming bonding. However, the bonding strength with foaming bonding was lower than that of the adhesive. Microscopy of the bonded area between brazing aluminum and pure aluminum foams was carried out. The bonding boundary was clearly observed. The surface treatment should be considered in order to obtain the high bonding strength with foaming bonding.

提出了一种泡沫铝的连接方法--发泡连接法。泡沫铝可以在不破坏孔壁和不增加密度的情况下进行粘结。在这项研究中，发泡粘结的有效性进行了实验研究。钎焊前体由钎焊铝合金制成。前体通过加热发泡，因为发泡剂颗粒分散在前体中。将前体放入两个带槽的纯铝泡沫中，并在前体的熔点以上加热。采用发泡粘接法将两块开有槽的泡沫纯铝进行粘接。然而，发泡粘结的粘结强度低于粘合剂的粘结强度。对钎焊铝与泡沫铝之间的结合区域进行了显微观察。观察到明显的结合边界。为了获得高的粘结强度，发泡粘结应考虑表面处理。

项目成果

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• 通讯作者: Satoru Izawa

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