基于响应面算法的电压转换器注塑模具优化  

Optimization of Injection Mold for Voltage Converter Based on Response Surface Algorithm

作　　者：赵克宝[1] 那琳[1] 张万臣[1] ZHAO Ke-bao;NA Lin;ZHANG Wan-chen(Hebei Construction Material Vocational and Technical College,Qinhuangdao 066000,China)

机构地区：[1]河北建材职业技术学院,河北秦皇岛066000

出　　处：《塑料科技》2021年第11期80-84,共5页Plastics Science and Technology

摘　　要：以某型号电压转换器为实例,分析零件的结构形状,选择合适的成型材料。基于响应面分析法,以塑件的翘曲变形量为目标,选取熔体温度、充填压力、充填持续时间为优化变量,设计响应面试验,建立响应面方案。将试验数据进行二次回归方程拟合,并对试验数据进行响应面分析,得到塑件的翘曲变形量与各影响因素的变化趋势,通过方差分析对响应面分析的可靠性进行证明,得到最小翘曲变形量下的优化工艺参数。优化后的工艺参数为:熔体温度245℃,充填压力96%,充填持续时间为9.64 s。优化结果表明:优化后塑件的翘曲变形量为1.545 mm,相比优化前降低9.6%,达到目标要求。优化模型的误差率仅为1.17%,表明响应面优化模型具有较高的准确率和可靠性,为其他类似模具的设计与优化提供借鉴与指导。Taking a certain type of voltage converter as an example, the structural shape of the parts was analyzed and the appropriate molding material was selected. Based on the response surface analysis method, the warpage deformation of plastic parts was taken as the target, and the melt temperature, filling pressure and filling duration were selected as the optimization variables. The response surface test was designed and the response surface scheme was established. The test data were fitted by quadratic regression equation, and the response surface analysis of the test data was carried out to obtain the change trend of the warpage deformation of the plastic part and the influencing factors. The reliability of the response surface analysis was proved by variance analysis, and the optimal process parameters under the minimum warpage deformation were obtained. The optimized process parameters are that melt temperature is 245 ℃, filling pressure is 96%, and filling duration is 9.64 s. The optimization results show that the warpage deformation of the optimized plastic part is 1.545 mm, which is 9.6% lower than that before optimization and meets the target requirements.The error rate of the optimization model is only 1.17%, indicating that the response surface optimization model has high accuracy and reliability, and provides reference and guidance for the design and optimization of other similar molds.

关 键 词：响应面算法 电压转换器 注塑成型 工艺参数优化 

分 类 号：TQ317[化学工程—高聚物工业] TP391.7[自动化与计算机技术—计算机应用技术]