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OALib Journal期刊
ISSN: 2333-9721
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半固态alsi7mg铝合金的新型流变成形
Abstract:
？采用新型流变成形技术,研究了压射比压与压射速度对半固态alsi7mg铝合金流变压铸过程的影响.结果表明:将低过热度浇注与短时弱电磁搅拌相结合,能制备出均匀的半固态alsi7mg铝合金浆料,适合流变压铸,流变成型参数范围较宽,有利于提高压铸件的质量.试片的壁厚、压射比压和压射速度都对半固态alsi7mg合金浆料的充填性有较大的影响.对于10mm的试片,压射比压应≥15mpa,压射速度应≥0.384m/s;而对于5mm的试片,压射比压应≥20mpa,压射速度应≥1.152m/s.
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