摘要
针对注塑瓶盖壁厚控制的特点,介绍了统计过程控制(SPC)中的均值-极差(x-R)控制图在塑料瓶盖壁厚控制中的局限性,将两极(L-s)控制图与均值-极差控制图进行了比较,阐述了两极控制图在塑料瓶盖壁厚控制中的优越性,论述了两极控制图的构造原理和控制限计算方法,提出了两极控制图在注塑瓶盖壁厚控制中的应用,并在对两极控制图分析的基础上,对注塑成型的过程能力进行分析和改善。
Based on the characteristics of wall thickness of injection molded caps, the application of L-s control chart in wall thickness of injection molded caps is discussed. The limitation of ^-x-R control chart for application in wall thickness of injection molded caps is described when it compares with the L-s control chart. Moreover,it illustrates in detail how the L-s control chart can be performed in the wall thickness of injection molded caps and the merits of the L-s control chart in wall thickness of injection molded caps. On the basis of the L-s control chart,the capability of the injection process is analysed and some good suggestions for the improvement of the capability of the injection process are provided.
出处
《塑料》
CAS
CSCD
北大核心
2005年第4期85-89,共5页
Plastics
