【摘要】 合金挤压时的金属流动特性及工模具设计为依据,研究了挤压建筑铝型材时牵引力的计算。提出牵引力的大小应在实际生产中根据具体型材来确定,不应一概而论,避免牵引力过大或过小而造成型材几何形状和尺寸的变化,防止型材弯曲和扭曲。并参照挤压工艺参数及有关技术数据进行了实际计算。更多还原

【Abstract】 The calculations of traction force in extruding architectural aluminium alloy profiles are researched. The design traction force should be determined on the basis of practical production. The practical calculations are made according to extrusion process parameters and some technology data.更多还原