Presents the principle of statistics process control, the judgement of state in statistical control for a process by means of control chart, and the analyses and improves process capability.
阐述统计过程控制的原理、应用控制图对过程作出统计稳态的判断，分析并提高过程能力。
A standard control chart based on probability integral transform theory is given, which can be used to control process mean and variance efficiently in the low volume manufacturing.
用概率积分变换理论，给出了控制过程均值、过程方差的标准化控制图，适用于小批量生产环境下对过程均值、过程方差的有效控制。
An effective spot-control method with control chart has been made in productive process, and obvious improvements are obtained in practice.
利用控制图对工序进行了有效的现场控制并在实践中取得了明显的改进。
The process see chart 7 Firstly, release the pressure of control valve, and disassemble control pipeline and loosen connecting nut before take out the actuator.
压力阀的拆装步骤见图7首先把控制阀压务释放，拆卸控制管线，松开连接执行器联接螺母，取下执行器。
Lastly, by comparing with other control theories and tools, traits of SPC and the applicability of control chart in wastewater treatment process were discussed.
通过比较统计过程控制与其他控制理论，本文分析了统计过程控制的特点与控制图应用在污水处理过程中的适应性。
In order to use the control chart to control the process quality economically and reasonably, the most important task is to design an economical control chart and to make use of it economically.
经济合理地利用控制图进行成组生产工序质量相对控制，必须先设计出经济控制图，并经济地运用控制图。
At last, control chart and process capability analysis method is used to control and monitoring G1G2 production to prevent abnormal fluctuations and guarantee the improve results.
应用控制图和过程能力分析方法对G1G2生产实施控制和监测，以防止异常波动，保证改善成果。
At last, control chart and process capability analysis method is used to control and monitoring G1G2 production to prevent abnormal fluctuations and guarantee the improve results.
应用控制图和过程能力分析方法对G1G2生产实施控制和监测，以防止异常波动，保证改善成果。
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