(大連理工大學(xué) 材料科學(xué)與工程系，大連 116023)
摘 要: 為了更準(zhǔn)確地分析高頻交變電磁場對金屬熔體中的非金屬夾雜物的去除效果， 分別利用硅含量為18%、 12.6%和10% 3種鋁硅合金所生成的尺寸為100、 50和10 μm的硅塊來模擬非金屬夾雜物以進(jìn)行電磁凈化實驗研究。 實驗證明： 生成的硅塊可以更好地模擬金屬液中單個的非金屬夾雜物； 施加電磁場后發(fā)現(xiàn)， 電磁擠壓力對單個尺寸在100和50 μm的非金屬夾雜物的去除效果明顯， 同時也可以去除10 μm左右的非金屬夾雜物。
關(guān)鍵字: 電磁力； 電磁凈化； 非金屬夾雜物
（ Department of Materials Science and Engineering,
Dalian University of Technology,Dalian 116024, China）
Abstract: To accurately analyze the eliminative effect of high frequency electromagnetic field on the nonmetallic inclusions in liquid metal, the electromagnetic eliminating experiments were made with 100, 50 and 10 μm primary Si produced by Al-Si alloys with Si content of 18%, 12.6% and 10% respectively, and was used to simulate the nonmetallic inclusions. The results show that the produced primary Si are more suitable to substitute the single nonmetallic inclusions in the molten alloys. Primary Si with size of 100, 50 μm can be wiped off evidently under electromagnetic force, similarly primary Si with size of 10 μm can also be eliminated.
Key words: electromagnetic force; electromagnetic purification; nonmetallic inclusions
