本文介绍了用部份粉末冶金方法和金属压力加工方法加工镁基弥散型(镁-金;镁-氧化硼;镁-氧化铪)薄壁管的研制工作。弥散相金、硼和铪分别以五种重量百分比(0.5％;1％;2％;4％;8％)弥散在基体镁中。管子的外径为20毫米,壁厚为1毫米。同时也对研制过程中的混料、成型、润滑、热挤压、检查和模具设计等作了比较详细的描述、特别是对成品尺寸公差的控制、检查和提高表面质量等方面,提出了一些行之有效的办法。 In this paper, the development of thin-walled Mg-based (magnesium-gold; magnesium-boron oxide; hafnium-magnesium oxide) thin-walled tubes by partial powder metallurgy and metal pressure processing is described. Dispersed phase gold, boron and hafnium are dispersed in the matrix magnesium in five weight percentages (0.5%; 1%; 2%; 4%; 8%) respectively. The pipe has an outer diameter of 20 mm and a wall thickness of 1 mm. At the same time, it also made a more detailed description of compounding, forming, lubrication, hot extrusion, inspection and mold design in the course of development, especially some aspects such as controlling the size tolerance of finished products, checking and improving the surface quality Effective method.