Attributes Control Charts as a Tool of Retrospective Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F29142890%3A_____%2F18%3A00033823" target="_blank" >RIV/29142890:_____/18:00033823 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/18:10241056

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Attributes Control Charts as a Tool of Retrospective Analysis

Popis výsledku v původním jazyce

The paper deals with attributes control charts, especially with the control charts for fraction nonconforming, and their use in retrospective analysis of a process. Several forms of these charts are applied in a case study. The study concerns the occurrence of defects, especially the deformations on hot-rolled wire manufactured on the wire rod mill at Arcelor Mittal Ostrava a.s. Number of wire coils with defects is of interest. P-charts are used to identify subgroups with an inflated fraction nonconforming that could distort results of evaluating differences in fraction nonconforming between steel grades, hot-rolling temperatures, and wire diameters. In addition, it is shown how to modify the traditional p chart in the case when a substantial part of the points fall outside control limits due to large subgroup sizes.

Název v anglickém jazyce

Attributes Control Charts as a Tool of Retrospective Analysis

Popis výsledku anglicky

The paper deals with attributes control charts, especially with the control charts for fraction nonconforming, and their use in retrospective analysis of a process. Several forms of these charts are applied in a case study. The study concerns the occurrence of defects, especially the deformations on hot-rolled wire manufactured on the wire rod mill at Arcelor Mittal Ostrava a.s. Number of wire coils with defects is of interest. P-charts are used to identify subgroups with an inflated fraction nonconforming that could distort results of evaluating differences in fraction nonconforming between steel grades, hot-rolling temperatures, and wire diameters. In addition, it is shown how to modify the traditional p chart in the case when a substantial part of the points fall outside control limits due to large subgroup sizes.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10103 - Statistics and probability

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Metal 2018: 27th International Conference on Metallurgy and Materials

ISBN

978-80-87294-84-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1818-1823

Název nakladatele

TANGER

Místo vydání

Ostrava

Místo konání akce

Brno, Czech Republic

Datum konání akce

1. 1. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000461832200293