How to Implement SPC on the Processing Floor

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SPC · 质量 · 过程控制

Key characteristics, control chart selection, and process capability assessment: introductory essentials.

SPC implementation steps:

1) Identify key characteristics (e.g., thickness, width, bend angle, weld width).
2) Select control charts: use Xbar-R for variable data and P/NP charts for attribute data.
3) Set sampling frequency and sample size; for continuous production, sampling 5 pieces per batch is recommended.
4) Calculate control limits and distinguish between common-cause and special-cause variation.
5) A process capability of Cpk ≥ 1.33 is a commonly used requirement.

Steel processing is heavily affected by incoming material variation. It is recommended to monitor incoming material parameters at the same time to avoid mistaking incoming material problems for process problems.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。

How to Implement SPC on the Processing Floor

Key characteristics, control chart selection, and process capability assessment: introductory essentials.

SPC implementation steps:

1) Identify key characteristics (e.g., thickness, width, bend angle, weld width).
2) Select control charts: use Xbar-R for variable data and P/NP charts for attribute data.
3) Set sampling frequency and sample size; for continuous production, sampling 5 pieces per batch is recommended.
4) Calculate control limits and distinguish between common-cause and special-cause variation.
5) A process capability of Cpk ≥ 1.33 is a commonly used requirement.

Steel processing is heavily affected by incoming material variation. It is recommended to monitor incoming material parameters at the same time to avoid mistaking incoming material problems for process problems.

本文由 SteelWe 编辑与行业专家整理，内容仅供行业交流参考，不构成交易或投资建议。引用请注明来源。