From quality of melting metal,casting condition and casting equipment,the influence factors of crack in aluminium and its alloy slab ingot were analyzed,some suggestion have been drawn out.

• 从铝及铝合金的熔体质量、铸造条件和铸造设备三个方面,分析了对铝及铝合金扁锭裂纹影响的诸要素,并提出避免裂纹的措施。