铝合金型材润滑挤压很久以前就已经提出,但是近几年来在某种程度上未获得大量的工业采用。这说明,在润滑挤压时,采用不能排除死区的一般结构模子,因而在型材表面层发现第二类缩尾(侧面的)。此外,挤压时所采用的润滑剂弹性不足,使工具和毛坯之间的润滑层产生断裂,因而会使金属粘附到工具上,致使型材表面质量变坏。苏联近十年来拟定了润滑挤压型材方法的主要参数(工具和毛坯的几何形状、润滑剂成份、对工具表面光洁度的要求、挤压筒和模子接合的气密问题等)。这就可以拟定润滑挤压型材的技术工艺,目前,该工艺在苏联 Aluminum alloy profiles have long been proposed for lubrication and extrusion, but to a certain extent, they have not been widely used in industry in recent years. This shows that in the lubrication of extrusion, the general structure of the mold can not exclude the dead zone, and thus found in the profile of the second type of tail (side). In addition, the lack of elasticity of the lubricant used during extrusion breaks the lubricating layer between the tool and the blank, thereby causing the metal to adhere to the tool, resulting in a deterioration of the profile surface quality. Nearly a decade has elapsed since the Soviet Union formulated the main parameters for lubrication of extruded profiles (geometry of tools and blanks, composition of lubricants, requirements for tool surface finish, airtightness of the extrusion barrel and the mold, etc.). This allows the development of a technical process for the extrusion of extruded profiles, which is currently in the Soviet Union