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STRUKOVNA ŠKOLA ĐURĐEVAC DR. IVANA KRANJČEVA 5 DULJINA VIJKA _ x – R kontrolna karta Ime i prezime: Boris Erdelec,Martin Markov,Renato Senjan Razred: 4.c Školska godina: 2011/2012 Zanimanje: Tehničar za mehatroniku

Control card-Kontrolna karta + diagram

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Page 1: Control card-Kontrolna karta + diagram

STRUKOVNA ŠKOLA ĐURĐEVACDR. IVANA KRANJČEVA 5

DULJINA VIJKA _ x – R kontrolna karta

Ime i prezime: Boris Erdelec,Martin Markov,Renato SenjanRazred: 4.cŠkolska godina: 2011/2012Zanimanje: Tehničar za mehatroniku

Đurđevac, veljača 2012.

Page 2: Control card-Kontrolna karta + diagram

1. Uvod _x – aritmetička sredina uzorka

R – raspon_ x = Σ xi / n

R = xmax - xmin

GKGx = x + A2 * R

DKGx = x - A2 * R

GKGR= D4 * R

DKGR = 0

A2 = konstanta = 0,577

D3 = 0

D4 = konstanta = 2,115

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2. Tablica kontrolne karte

Uzorak Duljina vijka Srednja vrijednost Raspon

1. 90,30 90,10 90,40 90,15 90,25 451.20/5=90.240 0,302. 90,30 90,20 90,05 90,10 90,25 450.80/5=90.160 0,253. 90,38 90,20 90,20 90,25 90,18 451.21/5=90.242 0,204. 90,18 90,23 90,15 90,35 90,20 451.11/5=90.222 0,205. 90,18 90,25 90,20 90,30 90,20 451.13/5=90.226 0,126. 90,10 90,30 90,33 90,15 90,15 451.03/5=90.206 0,237. 90,10 90,15 90,20 90,18 90,25 450.88/5=90.176 0,158. 90,30 90,20 90,15 90,30 90,20 451.15/5=90.230 0,159. 90,25 90,15 90,25 90,18 90,25 451.08/5=90.216 0,1010. 90,25 90,13 90,30 90,00 90,10 450.78/5=90.156 0,3011. 90,00 90,15 90,20 90,10 90,25 450.70/5=90.140 0,2512. 90,20 90,15 90,10 90,18 90,15 450.78/5=90.156 0,1013. 90,00 89,59 90,05 90,05 90,15 449.84/5=89.968 0,5614. 90,10 90,15 90,20 90,15 90,30 450.90/5=90.180 0,2015. 90,15 90,25 90,25 90,20 90,30 451.15/5=90.230 0,1516. 90,10 90,20 90,28 90,35 90,23 451.16/5=90.232 0,2517. 90,41 90,25 90,10 90,30 90,20 451.26/5=90.252 0,3118. 90,15 90,10 90,15 90,30 90,25 450,95/5=90.190 0,2019. 90,30 90,15 90,20 90,20 90,10 450.95/5=90.190 0,2020. 90,15 90,20 90,25 90,25 90,10 450.95/5=90.190 0,15

Sumx=1803,802 SumR=4.37

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3. Izračunavanje kontrolne granice

x =1803.802 / 20 = 90.1901

R = 4.37/20 = 0.2185

X graf :

GKGx = x + A2 * R = 90.1901+ 0.577 * 0.2185= 90.3162

DKGx = x - A2 * R= 90.1901 -0.577 * 0.2185= 90.0640

R graf :

GKGR = D4 * R = 2,115 * 0.2185=0.4621

DKGR = 0

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2.1 Tablica kontrolne karte (bez vrijednosti koja iskače izvan granica)

Uzorak Duljina vijka Srednja vrijednost Raspon

1. 90,30 90,10 90,40 90,15 90,25 451.20/5=90.240 0,302. 90,30 90,20 90,05 90,10 90,25 450.80/5=90.160 0,253. 90,38 90,20 90,20 90,25 90,18 451.21/5=90.242 0,204. 90,18 90,23 90,15 90,35 90,20 451.11/5=90.222 0,205. 90,18 90,25 90,20 90,30 90,20 451.13/5=90.226 0,126. 90,10 90,30 90,33 90,15 90,15 451.03/5=90.206 0,237. 90,10 90,15 90,20 90,18 90,25 450.88/5=90.176 0,158. 90,30 90,20 90,15 90,30 90,20 451.15/5=90.230 0,159. 90,25 90,15 90,25 90,18 90,25 451.08/5=90.216 0,1010. 90,25 90,13 90,30 90,00 90,10 450.78/5=90.156 0,3011. 90,00 90,15 90,20 90,10 90,25 450.70/5=90.140 0,2512. 90,20 90,15 90,10 90,18 90,15 450.78/5=90.156 0,1013. 90,10 90,15 90,20 90,15 90,30 450.90/5=90.180 0,2014. 90,15 90,25 90,25 90,20 90,30 451.15/5=90.230 0,1515. 90,10 90,20 90,28 90,35 90,23 451.16/5=90.232 0,2516. 90,41 90,25 90,10 90,30 90,20 451.26/5=90.252 0,3117. 90,15 90,10 90,15 90,30 90,25 450,95/5=90.190 0,2018. 90,30 90,15 90,20 90,20 90,10 450.95/5=90.190 0,2019. 90,15 90,20 90,25 90,25 90,10 450.95/5=90.190 0,15

Sumx=1713.834 SumR=3.84

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3.1 Izračunavanje kontrolne granice (bez vrijednosti koja iskače izvan granica)

x =1713.84 / 19 = 90.2021

R =3.84 /19 = 0.1811

X graf :

GKGx = x + A2 * R = 90.2018 + 0.577 * 0.2185= 90.3341

DKGx = x - A2 * R= 90.2018-0.577 * 0.2185= 90.0701

R graf :

GKGR = D4 * R = 2,115 * 0.2005 =0.4132

DKGR = 0

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