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Abstract：
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The hot extrusion technology and die design of aluminum alloy pull-rod of the high-voltage switch accessory LW8-35SF6 were analyzed.Compared with the traditional manufacturing process,the new hot extrusion technology using bar backward extrusion and head forward extrusion was adopted,which improved the availability and productivity of the materials greatly.Through the commercial production experiment for aluminum alloy pull-rod,it is concluded that the bar with the-diameter of 90 mm and the height of 80 mm can be extruded by hot extrusion forming,the structure of the extrusion die designed is simple and has a strong common utilization.By using this new process,the dimensional precision of billet is improved and the weight is reduced over 72%,which not only increases the economic benefits but also produces a new method to manufacture long pull-rod which is difficult to be deformed on a small machines.
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Funds：
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河南科技大学校基金资助项目(2002QN01);;
河南科技大学人才科研基金资助项目(of023)
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AuthorIntro：
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Reference：
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