论文部分内容阅读
一、模具在铝挤压生产中的特殊地位 1.铝挤压技术的发展现状 50年代以来,铝挤压技术获得了飞速的发展。几十年中,各国已装备了各种型式、各种结构、不同用途、不同吨位的挤压机千台以上。挤压铝材已超过300万吨。现在,铝挤压材正向大型化、复杂化、精密化、多品种、多规格、多用途方向发展,挤压生产也日趋连续化、自
First, the mold in the aluminum extrusion production in a special position 1. The development of aluminum extrusion technology Since the 1950s, aluminum extrusion technology has been rapid development. For decades, all countries have equipped more than 1,000 extrusion presses of various types, structures, different uses and different tonnage. Extruded aluminum has more than 3 million tons. Now, aluminum extrusion material is large-scale, complex, sophisticated, multi-species, multi-format, multi-purpose direction, extrusion production is also increasingly continuous, since