序言 Al-Mn系3004合金的加工性优秀,作为饮料罐材料,得到广泛的应用。3004合金在连续铸造时,由于微观偏析产生共晶化合物,由此而产生巨大的金属间化合物。这种巨大的化合物在连续铸造后,通过加工、热处理仍不能消除,最后残留在板材中。因此,在变薄拉伸(DI)加工及胀形加工等制罐工序中容易产生裂纹,成为加工性降低的主要原因。所以说弄清此种巨大化合物的 Preface Al-Mn series 3004 alloy is excellent in workability and is widely used as a beverage can material. 3004 alloy in continuous casting, due to micro-segregation eutectic compounds, resulting in a huge intermetallic compounds. This huge compound in the continuous casting, through processing, heat treatment can not be eliminated, the final residue in the plate. Therefore, cracks easily occur in canning processes such as thinning drawing (DI) processing and bulging processing, resulting in a decrease in workability. So to clarify such a huge compound