业已知道,在等温挤压条件下,可保证挤压制品在全长的组织和机械性能不变和稳定,而且有可能使硬铝型合金制品直接在挤压机台上淬火得到工业应用。为了实现等温挤压条件,可采用下列几种方法:对铸锭进行梯度加热、采用水冷模、控制挤压速度制度等。本文提出了挤压棒材和管材的速度制度,该制度可保证金属在模子出口处和制品全长上的温度不变。确定等温挤压的速度制 It is known that under isothermal extrusion conditions, constant and stable mechanical and structural properties of the extruded product over the entire length can be guaranteed, and that it is possible to industrially apply hard alloyed products directly on the extruder table. In order to achieve isothermal extrusion conditions, the following methods can be used: gradient heating of the ingot, the use of water-cooled die, extrusion speed control system. This paper presents a speed system for extruding bars and tubes that ensures that the temperature of the metal at the exit of the mold and the entire length of the product remains constant. Determine the speed of isothermal extrusion system