【摘要】 概述了高档电子机柜用超高精度高强７Ａ０４超硬铝合金导轨型材的研制过程，并对导轨的材质、结构、成形方案。挤压模具以及挤压、拉矫工艺的选择进行了深入探讨。结果表明，与机加不锈钢导轨相比，此新型导轨重量轻、加工成本低、装配性能优良、载荷能力也毫不逊色，完全可取代机加不锈钢导轨，实现以铝代钢、以压加取代机加不锈钢导轨的预定目标。更多还原

【Abstract】 The development of a high-strength and superhigh-accuracy guide rail profile of supedrhard aluminum ahoy, used in high-grade electronic cabinets was suniniarized, and the selections of the guide rails material, structure, forming scheme, extrusion die as well as the processes of extruding and stretching were investigated in detail. The results showed that compared with a machined stainless steel guide rail, the newly developed one, featuring lighter weight, lower processing cost, no worse assemhing performance and loading capacity, can completely replace the former for an expected aim at substituting steel with aluminium and substituting machining with press working.更多还原