SPC quality control management system

SPC is short for statistical process control. It is a process control tool based on mathematical statistics ". The basic element of SPC quality control is the control chart. A control chart is a statistical tool for controlling the product quality status in the production process. It is the most important method in quality control. People think about the control chart: "Quality Management begins with the control chart, and finally the Control Chart ". Because it changes product quality control to post-Inspection Prevention, it opens up a broad prospect for ensuring product quality, reducing production costs, and improving production efficiency, therefore, it has been widely used in various countries around the world. The main purpose of a control chart is:
(1) analyze and determine the stability of the production process and statistical control status.
(2) promptly discover abnormal phenomena and slow variations in the production process to prevent nonconforming products.
(3) identify the actual precision of production equipment and process equipment so as to make correct technical decisions.
(4) Provide a basis for evaluating product quality. Control Chart category:
(1) X-R control diagram (mean-range control diagram ).
(2) X-S Control Chart (mean-standard deviation control chart ).
(3) Process Capability Index
(4) xmed-s median Range Chart
(5) Control Chart of conformity rate-p Diagram
(6) No. of nonconforming products-PN Diagram
(7) control of the number of nonconformities-C Diagram
(8) unit unqualified numerical control drawing-u Diagram

System Functions
1. Basic settings
Basic settings include linear definition, control chart type definition, tool type definition, tool parameter definition, mold definition, processing defect definition, processing equipment definition, measuring appliance definition, measuring unit definition, and process Process definition, station definition, SPC system parameters, etc.
2. Control Type Switching
Before entering the specific control chart after each entry, if the control type has not been set, the system will automatically call "control type switching" for the user to choose; if the user has been working under the specific control type, you can switch the control type to different control type modes. The user-created Control Chart varies with different control types. The initial capability is used to evaluate the capability of devices and processes when they are put into production in the analysis phase. The mechanic capability is used to monitor the stability of devices and processes in the control phase of the production process.
3. Control Chart
The system provides functions such as control graph creation, automatic input of control graph sampling data, manual input, and defect data input.
4. control chart analysis
Allows you to draw and print data tables, charts, and reports based on the sampled data. You can also preview the data. The system provides control chart analysis commonly used in industrial processing, and provides the custom control chart report function.

Note: The above content comes from the Internet and I am not liable for any joint liability.

Article transferred from: http://www.wutone.com/spc.htm