注塑模具冷却管网实验分析  

Experimental analysis of pipe network for injection mold

作　　者：赵振峰[1] 石宪章[1] 王静[1] 申长雨[1] 刘春太[1] 

机构地区：[1]郑州大学橡塑模具国家工程研究中心,河南郑州450002

出　　处：《化工学报》2009年第12期3148-3152,共5页CIESC Journal

基　　金：国家自然科学基金项目(10590352)~~

摘　　要：针对注塑模具冷却管网中的压力和流量的关系进行了一系列的实际测量,以验证常规的管网分析方法在模具冷却管网分析中的适用性。结果表明,目前广泛采用Darcy-Weisbach方程在模具冷却分析中是不适用的。无论是目前世界上在该领域占统治地位的MPI软件,还是国产软件,其计算结果均与实际相差甚远。Darcy-Weisbach方程虽然仍有借鉴作用,但关于阻力的计算模型基本失去了应用价值。本文讨论了问题产生的原因,给出了工程化的初步计算方法。A series of experiments on the relationship between pressure and flow rate in the cooling pipe network of injection mold were carried out to verify the applicability of the analysis method of traditional pipe network in the mold design. The test result showed that the current method based on the Darcy Weisbach equation was not correct. Neither MPI, the major CAE software for injection molding, nor some CAE software developed in China gave correct result. Although the Darcy Weisbach equation still has certain use for reference, its basic theory on resistance calculation is not applicable to the cooling analysis of the injection mold. The reason was discussed and the correct analysis method was proposed.

关 键 词：管网 注塑模具 冷却系统 局部损失 Darcy-Weisbach方程 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]