China Plastics ›› 2009, Vol. 23 ›› Issue (01): 82-86 .DOI: 10.19491/j.issn.1001-9278.2009.01.018

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Optimal Design of Gas-assisted Injection Processing Parameters Based on Response Surface Model

LI Guang-ming, YIN Guo-fu,YU Ling   

  1. 1.School of Mechanical Engineering, Southwest University of Science and Technology, Mianyang 621010,China; 2.School of Mechanical Engineering, Sichuan University, Chengdu 610065,China; 3.SiChuan Space Mold and Plastic Corporation, Chengdu 610100,China
  • Received:2008-09-03 Revised:1900-01-01 Online:2009-01-26 Published:2009-01-26

Abstract: In view of the complexity present in the process of the design and control of the gas-assisted injection, a response surface model was formulated based on orthogonal experimental design and response surface design combined with correlative significance test. The melt temperature, delay time, air pressure, and time were determined as the highly significant factors. The mesh adaptive search algorithm was applied to optimize the model and a satisfactory solution was found rapidly and exactly. At last, a case study was carried out which demonstrated the method was effective in numerical simulation and the simulation result was in accord with the optimal ones.

Key words: gas-assisted injection processing, response surface method, mesh adaptive search algorithm, optimization