The cause of die snarl-up for profiles during extruding was analyzed from the aspects of ingot,extruding condition,die and inhomogeneous deformation,etc.

• 从6063铝合金铸锭、挤压工艺条件、模具、金属的不均匀变形等方面分析型材挤压时发生“堵模”现象的原因;提出了其防止措施。