摘要
研究了镁合金挤压模具及工艺参数．根据镁合金特点设计了4孔分流挤压模具，选择MB2镁合金在1250T卧式挤压机上进行了挤压试验．通过试验得到的主要工艺参数为：镁棒预热温度为548～698K，模具预热温度530～673K，挤压筒温度573～723K，挤压速度0．067～0．083m／s及挤压比40～60，与铝合金管相比，3种规格的镁合金管具有良好的力学性能和机械性能，可完全满足喷灌工程的需要．
Magnesium alloy extrusion mold and the craft parameter were studied. According to magnesium alloy characteristic, the 4 holes extrusion mold was designed. Extrusion experiment was carried out with the MB2 on 1 250 ton extruder. The magnesium stick temperature is at 548 - 698 K, mold temperature at 530 - 673 K, extrusion tube temperature at 573 ～ 723 K, extrusion speed at 0. 067 ～0. 083 m/s, and extrusion ratio at 40～60. Compared to aluminum alloy pipes, magnesium metal alloy pipes have good mechanics function and machine function, and satisfiys the sprinkler engineering.
出处
《排灌机械》
2006年第6期28-30,共3页
Drainage and Irrigation Machinery
基金
国家"863"计划项目(2002AA2Z41503)
关键词
管道
镁合金
挤压
模具
工艺参数
喷灌
pipe
magnesium alloy
extrusion
mold
craft parameter
sprinkler
