Process Adjustment Control Chart for Simultaneous Monitoringof Process Capability and State of Statistical Control
Process Adjustment Control Chart for Simultaneous Monitoringof Process Capability and State of Statistical Control
复制标题
同时监控过程能力和统计控制状态的过程调整控制图
DOI：
10.1007/978-3-7908-2846-7_9
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Tomomichi Suzuki
中科院分区：
文献类型：
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作者：
Hironobu Kawamura;K. Nishina;Tomomichi Suzuki
在化学品的生产中，经常使用诸如反馈控制的过程调节来减少过程可变性。由于自动过程控制（APC）系统需要大量的资本投资，因此判断是否应该自动进行调整是非常重要的。本文提出了以工序能力为基础确定调整时机的方法，并给出了结合统计控制状态和工序能力信息的控制图来判断调整时机。实践者可以评估调整间隔和调整的数量通过模拟或试验使用所提出的方法。此外，该信息对于判断是否应该引入自动调节系统是非常有用的。
In the production of chemicals, a process adjustment such as feedback control is frequently used to reduce process variability. It is very important to judge whether or not the adjustment should be done automatically because an automatic process control (APC) system requires a large capital investment. This paper presents the determination of the adjustment timing on the basis of the process capability, and control charts combining information about the state of statistical control and process capability are also presented for the judgment of adjustment timing. Practitioners can assess both the adjustment interval and the number of adjustments by simulation or trial using the presented method. Moreover, the information is very useful for judging whether or not the automatic adjustment system should be introduced.