In the design and development of high voltage distribution box,the flatness of installation surface directly affects the installation accuracy,anti-fatigue performance and sealing performance.Aiming at the problem that the flatness of the installation surface of a high voltage distribution box is unqualified under the initial process,the injection molding process was simulated by computer aided engineering technology,and the orthogonal test was designed to explore the process optimization scheme of flatness.The results show that the influence of holding time on flatness is extremely significant,the influence of barrel temperature and mold surface temperature on flatness is significant,and the influence of injection time on flatness is not significant.The optimum combination of process parameters is A2B3C1D3.The simulation results of the optimized process show that the flatness is reduced from 2.756 9 mm to 1.532 9 mm,and the optimization rate reaches 44.4%,which meets the design requirements.The filling process,shrinkage mark,welding line and injection pressure results also meet the requirements.The appearance and flatness of the samples are qualified by the optimized process,which verifies the feasibility of the optimized process.
关键词
高压配电盒/平面度/正交试验/优化分析
Key words
High-voltage distribution box/Flatness/Orthogonal test/Optimization analysis
维普
万方数据