高精密汽车天窗导轨型材的生产过程控制邱建平董培纯黄鹏浙江宁波科诺铝业有限公司，浙江宁波，315031摘要：由于天窗导轨特有的加工特性，型材必须有稳定的弯曲性能和高精度的尺寸要求。本文介绍通过熔铸过程工艺的控制、合金成分的调整、模具结构的优化和挤压、时效过程工艺参数的控制实现高精密尺寸和稳定机械性能的汽车天窗导轨的生产。关键词：力学性能；工艺控制；自然时效；人工时效；化学成分HighprecisionautoroofrailprofileoftheproductionprocesscontrolQiu.jianpingDong.peichunHuang.pengNINGBOKENOALUMINIUMCO.,LTD,Zhejiangningbo315031Abstract:Sunroofrailsuniqueprocessingcharacteristics,aluminumprofilesmustbestablebendingperformanceandhighprecisiondimensionrequirements.Thisarticledescribesthecontrolofthecastingprocess,theadjustmentofthealloycomposition,structureoptimizationanddie,duringagingprocessparameterscontrolachievehighprecisiondimensionandstabilityofthemechanicalpropertiesoftheproductionofthecarsunroofrails.Keywords:mechanicalbehavior;processcontrol;naturalaging;artificialaging;chemicalconstituent速度控制，防止j偏析，造成铝棒J匀和产品力学性{控制铝棒铸造组；}硬度，氮化列后检查模具氮廿熔乐时嘉而靠豆风系统的稳‘匣风和加温控；：备挤压杆的又
