Design of Cooling Water Circuit and Optimization of Injection Warpage Deformation for Typical Injection U-Pieces
The traditional water path design for injection molding is limited by the processing conditions,resulting in the water path can not be close to the geometric shape of the product,the cooling effect is not good,the overall cooling is not even and regional heat accumulation and other warpage molding defects can not be properly solved.Taking the typical injection of U-type parts as an example,through the mold flow analysis,comparing the impact of the conventional spacer-type water path and the profiled water path on the warpage deformation of the injection of the product.The results show that the warping tendency of U-shaped parts is smaller when the pipe diameter of cooling waterway is larger and the distance between waterway and product is smaller,the main cause of warping deformation is heat accumulation at the bottom of plastic parts.The Profiled waterway can promote the overall u-niform cooling of the product,the cooling efficiency of the profiled waterway is 33.6%higher than that of the con-ventional bulkhead waterway,the cooling time is reduced by 33.1%,and the warping deformation of the product is reduced by 21.4%.However,the optimization of cooling process parameters has limited effect on improving the warping deformation of the product.
NETL
NSTL
万方数据
