注塑模具冷却系统设计原则与Moldflow

1、2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却系统设计的重要性2002 Cradle Technology GroupTa

2、i Dao Computer Co.,Ltd./Arthur Chen冷却系统设计的重要性2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen注射时间保压时间冷却时间开模时间v 循环时间: 通常，循环时间是产品的温度降到能安全顶出的温度所花的时间。如果充填和保压过程都是优化的，改善冷却行为可以显着地减小冷却时间。因为冷却时间通常包括80%的循环时间，所以减小冷却时间会显着减小循环时间和生产成本。and Packing冷却系统设计的重要性2002 Cradle Technology GroupTai Dao Compu

3、ter Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却系统的构成及类型2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chenv 并联水路 优点 适用于入子四周 低压下可达高流速 缺点 各分支流速不一样 各分支冷却效果不佳 易产生污垢 冷却系统的构成及类型2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen直线式圆管直

4、线式方管冷却系统的构成及类型2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen圆形弯管方形弯管冷却系统的构成及类型2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen挡板(Baffle)喷泉(Bubbler)冷却系统的构成及类型2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen吸热管(Thermal Pin)冷却系统的构成及类型2002 Cradle Tech

5、nology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen热量由熔融塑料带入热量由熔融塑料带入热量从冷却水路传入或传出热量从冷却水路传入或传出辐射散热辐射散热对流散热对流散热热量散失到模板上热量散失到模板上冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却理论分析2002 Cradle Technology GroupTai Dao

6、 Computer Co.,Ltd./Arthur Chen冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenMaterial Thermal Conductivity W/m/deg K Specific Heat J/kg/degK Density Kg/m3 Aluminum 221.9 920 2699 P20 29 460 7800 CarbSt 41.

7、9 460 7833 BeCu 130 420 8415 420 ss 24.9 401.7 7750 H-13 28.2 454.7 7750 C17200 (BeCu) 105 380 8350 C17510 (BeCu0) 245 380 8820 C18000 (NiSiCrCu) 207.6 404 8580 冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen这里， 为冷却液密度，U 为冷却液平均流速，d 为冷却水管直径， 为冷却液动态粘度。冷却理论分析2002 Cradle Technolo

8、gy GroupTai Dao Computer Co.,Ltd./Arthur Chen层流的温度梯度雷诺数 230063 C43 C23 C20 C塑料塑料金属界面冷却液金属界面冷却液温度梯度冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./

9、Arthur Chen或冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen厚2mm、长200mm的产品，以推荐的料温及1秒时间注射冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen热的一边冷的一边张应力凝固和收缩冷的一边热的一边冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen热集中在公模的角落热的角落(相对于凝固部分的收

10、缩，引起翘曲)Cavity冷Core热冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen快速冷却，低结晶度，低收缩率慢速冷却，高结晶度，高收缩率冷却理论分析2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却水路设计要点2002 Cradle Technology GroupTai Dao Co

11、mputer Co.,Ltd./Arthur Chen冷却水路设计要点2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却水路设计要点2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenCInOutInOutAInOutBInOut冷却水路设计要点2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却水路设计要点2002 Cradle Technology

12、GroupTai Dao Computer Co.,Ltd./Arthur ChenINOUTPoor!PinBlade冷却水路设计要点2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenINCorrect!OUTPinTube冷却水路设计要点2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen结合Moldflo

13、w分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen塑胶材料： ABS/PC CYCOLOY C2950 GE USA 最大外型尺寸 31425132平均肉厚为1.6mm 结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenCas

14、e1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenCase1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen潜伏式浇口原始冷却水路设计 结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen0.891.01Case1Case2结合Mol

15、dflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen120.9129.2Case1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen266.2280.6271.1279.7Case1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen0.430.430

16、.860.530.531.06Case1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen0.280.310.280.31Case1Case2结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen设变冷

17、却水路(Case3) 原始冷却水路(Case1) 结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen6565.16565.4Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen2.4-5.960.36-6.57Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer

18、Co.,Ltd./Arthur Chen0.890.89Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen120.9120.9Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen266.2280.6266.2280.6Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai

19、 Dao Computer Co.,Ltd./Arthur Chen0.430.430.320.320.860.64Case1Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen0.280.240.28Case10.24Case3结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur ChenX向(外张)Z向(上翘)结合Moldflow分析的设计案例2002 Cradle T

20、echnology GroupTai Dao Computer Co.,Ltd./Arthur Chen结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen冷却水温保压曲线T(sec)P(MPa)901.53.513.50结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arthur Chen6565.45065.1Case3Case4结合Moldflow分析的设计案例2002 Cradle Technology GroupTai Dao Computer Co.,Ltd./Arth