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中頻電磁振蕩法制備半固態(tài)鋁合金漿料的研究
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國(guó)家自然科學(xué)基金資助（50975222）


Semi-Solid Aluminum Alloy Slurry Prepared by Intermediate Frequency Electromagnetic Oscillation
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    摘要:

    采用一種中頻電磁振蕩法對(duì)牌號(hào)為ZL104的鋁合金進(jìn)行處理，得到了較為理想半固態(tài)漿料組織。主要研究了中頻電磁振蕩式流變成形法制備半固態(tài)鋁合金流變漿料過(guò)程中，振蕩次數(shù)對(duì)半固態(tài)漿料組織形貌的影響，探討分析了該方法中電磁攪拌器所產(chǎn)生的電磁場(chǎng)對(duì)半固態(tài)漿料組織的作用。結(jié)果表明：該方法操作簡(jiǎn)單，便于控制；工藝流程短，生產(chǎn)量大，設(shè)備成本低；其制備出的半固態(tài)漿料組織均勻性好，不存在因電磁場(chǎng)分布不均勻而產(chǎn)生的趨膚效應(yīng)。優(yōu)良的半固態(tài)漿料組織中初生α-Al的最小平均等效直徑為28 μm，初生α-Al的形狀因子為0.89。

    Abstract:

    The intermediate frequency electromagnetic oscillation technique was used to obtain the ideal semi-solid metal slurry and billet of the aluminum alloy ZL104. In this research, the proper number of oscillation was mainly discussed when using the intermediate frequency electromagnetic oscillation technique to produce semi-solid slurry. The influence of the electromagnetic fields generated by electromagnetic stirrer on the microstructure of the semi-solid slurry and billet was also analyzed. The results indicate that the method is easy to operate with short process and low-cost equipment. The semi-solid materials obtained from this method are uniform and do not show a skin-effect caused by the electromagnetic field distribution unevenness. Minimum average equivalent diameter of primary α-Al is 28 μm, and the shape factor of primary α-Al is 0.89.

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張 琦,曹 苗,蔡 進(jìn),趙升噸.中頻電磁振蕩法制備半固態(tài)鋁合金漿料的研究[J].稀有金屬材料與工程,2014,43(8):1974~1978.[Zhang Qi, Cao Miao, Cai Jin, Zhao Shengdun. Semi-Solid Aluminum Alloy Slurry Prepared by Intermediate Frequency Electromagnetic Oscillation[J]. Rare Metal Materials and Engineering,2014,43(8):1974~1978.]
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  • 收稿日期:2013-08-21
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  • 在線發(fā)布日期: 2015-01-04
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