The invention discloses a heat-treatment-free magnesium alloy damping tower and a high-vacuum die casting method and application thereof. The invention belongs to the field of lightweight damping towers. The invention aims to solve the technical problems that the existing shock absorption tower cannot meet the mechanical property requirement without heat treatment and the existing preparation method subjected to heat treatment is complex in operation system and step. The high-vacuum die-casting method comprises the following steps: step 1, preheating a magnesium alloy; 2, the preheated magnesium alloy is put into a crucible and smelted in the protective atmosphere, and an alloy melt is obtained; 3, the alloy melt is cast into a die-casting die to be subjected to high-vacuum die casting, the high speed of a punch is 5.5-7 m/s, the injection specific pressure is 80-120 MPa, and the pressure maintaining time is 8-15 s; and 4, post-processing the die-cast test piece to obtain the heat-treatment-free magnesium alloy damping tower. The heat-treatment-free magnesium alloy damping tower is applied to the field of passenger cars.
一种免热处理镁合金减震塔及其高真空压铸方法和应用。本发明属于轻量化减震塔领域。本发明为解决目前现有减震塔不经热处理无法满足力学性能要求以及现有经热处理的制备方法操作体系和步骤复杂的技术问题。本发明的高真空压铸方法:步骤1:将镁合金预热;步骤2:将预热后镁合金放入坩埚中,在保护气氛中进行熔炼,得到合金熔体;步骤3:将合金熔体浇铸到压铸模具中进行高真空压铸,冲头高速速度为5.5‑7m/s,压射比压为80‑120MPa,保压时间为8‑15s;步骤4:对压铸后试件进行后处理,得到免热处理镁合金减震塔。本发明的免热处理镁合金减震塔应用于乘用车领域。
Heat-treatment-free magnesium alloy damping tower and high-vacuum die casting method and application thereof
一种免热处理镁合金减震塔及其高真空压铸方法和应用
2022-11-22
Patent
Electronic Resource
Chinese
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