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SPC工具

SPC工具
Pp 和Ppk不及格率
 

Calculated Capability Ratio

盘算能力比值

PpFallout
(both sides combined)

PP不及格

(双边)

PpkFallout
(one side only)

Ppk不及格

(单边)

0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00

133,620
71,860
35,730
16,396
6,934
2,700
966
318
96
26
7
2
0.340
0.060
0.012
0.002

66,810
35,930
17,865
8,198
3,467
1,350
483
159
48
13
3
1
0.170
0.030
0.006
0.001

控制图常量

X and R Control Charts


均值极差控制图

 

X and S Control Charts


均值尺度差控制图

n

A2

D3

D4

d2

1
2
3
4
5
6
7
8
9
10
11
12

2.660
1.880
1.023
0.729
0.577
0.483
0.419
0.373
0.337
0.308
0.285
0.266

-
0
0
0
0
0
0.076
0.136
0.184
0.223
0.256
0.283

-
3.267
2.574
2.282
2.114
2.004
1.924
1.864
1.816
1.777
1.744
1.717

-
1.128
1.693
2.059
2.326
2.534
2.704
2.847
2.970
3.078
3.173
3.258

 

n

A3

B3

B4

C4

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

0.975
0.927
0.886
0.850
0.817
0.789
0.763
0.739
0.718
0.698
0.680
0.663
0.647
0.633
0.619
0.606

0.284
0.321
0.354
0.382
0.406
0.428
0.448
0.466
0.482
0.497
0.510
0.523
0.534
0.545
0.555
0.565

1.716
1.679
1.646
1.618
1.594
1.572
1.552
1.534
1.518
1.503
1.490
1.477
1.466
1.455
1.445
1.435

0.9727
0.9754
0.9776
0.9794
0.9810
0.9823
0.9835
0.9845
0.9854
0.9862
0.9869
0.9876
0.9882
0.9887
0.9892
0.9896

特殊缘故原由判异规则
InfinityQS SPC软件-特殊缘故原由判异规则
 
InfinityQS SPC软件-履历规则

 

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