6-sep-14
DESCRIPTION
Dubna straw status ( 27 /04/2011) introduction straw parameters conclusion Presented by V. Elsha S.Movchan. 6-Sep-14. S.Movchan Straw manufacturing and QC. 1. Common view. 6-Sep-14. S.Movchan Straw manufacturing and QC. 2. Storage area inside clean room. - PowerPoint PPT PresentationTRANSCRIPT
Apr 21, 2023 S.Movchan Straw manufacturing and QC 1
Dubna straw status (27/04/2011)
• introduction• straw parameters• conclusion
Presented by V. Elsha S.Movchan
Apr 21, 2023 S.Movchan Straw manufacturing and QC 2
Common view
Apr 21, 2023 S.Movchan Straw manufacturing and QC 3
Straw manufactured - 806 pc
Average rate – 20 straws/shift~ 100 straws per spool (L=300 m)
(nominal JINR straw L=2700 mm)
Storage area inside clean room Tray for 36 straws
Apr 21, 2023 S.Movchan Straw manufacturing and QC 4
806 straws
Number of Straw
5873 62
84 7793 96 98 100
65
0
20
40
60
80
100
120
A1-9 A1-11 A1-17 A1-10 A1-12 A1-8 A1-18 A1-4 A1-2 A1-7
Material
N
Tapes number Straw tubes
A1-9 58
A1-11 73
A1-17 62
A1-10 84
A1-12 77
A1-8 93
A1-18 96
A1-4 98
A1-2 (300 m) 100
A1-7 (180 m) 65
806
~100 straws/spool
Apr 21, 2023 S.Movchan Straw manufacturing and QC 5
Straw parameters: - diameter - elongation - ultrasonic track width (“seam”) - resistance (all results are presented (averaged) with bin=25 straws)
Straw rejection
806 straws: measurement results
Apr 21, 2023 S.Movchan Straw manufacturing and QC 6
806 straws
BLUE – straw startRED – straw end
Average diameter of straw
9,700
9,720
9,740
9,760
9,780
9,800
1 - 25 26 - 50 51 - 75 76 -100
101 -125
126 -150
151 -175
176 -200
201 -225
226 -250
251 -275
276 -300
301 -325
326 -350
351 -375
376 -400
401 -425
426 -450
451 -475
476 -500
501 -525
526 -550
551 -575
576 -600
601 -625
626 -650
651 -675
676 -700
701 -725
726 -750
751 -775
776 -800
801 -825
Arrange of straw numbers
Av
era
ge
dia
me
ter,
mm
Each bin=25 straws
Apr 21, 2023 S.Movchan Straw manufacturing and QC 7
806 straws
BLUE – straw startRED – straw end
Straw diameter
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
9,74 9,78 9,82 9,86
Diameter, mm
dN/N
D av = 9.78 mm
Tensile tests
54
3
2
1
1bis
6 samples from Sefar September
S1
R2
S2
R1
2 samples from Sefar December and 2 samples from JINR January
Inelastic elongation: start from dL ≥ 0.5 mm
Straw acceptance limit: dL ≥ 1.0 mm
Apr 21, 2023 S.Movchan Straw manufacturing and QC 9
806 straws
Average elongation ( Corrected value)
0,000
2,000
4,000
6,000
8,000
10,000
12,000
1 - 25 26 -50
51 -75
76 -100
101 -125
126 -150
151 -175
176 -200
201 -225
226 -250
251 -275
276 -300
301 -325
326 -350
351 -375
376 -400
401 -425
426 -450
451 -475
476 -500
501 -525
526 -550
551 -575
576 -600
601 -625
626 -650
651 -675
676 -700
701 -725
726 -750
751 -775
776 -800
801 -825
Arrange of straw numbers
Av
era
ge
elo
ng
ati
on
, mm
Min =1 mm
BLUE – straw startRED – straw end
Apr 21, 2023 S.Movchan Straw manufacturing and QC 10
806 straws
dL av = 7.0 mm
Straw elongation (Corrected value)
0
0,01
0,02
0,03
0,04
0,05
0,06
0,07
0,08
0,09
0,1
0,11
0,12
0,13
0,14
0,15
0,16
0,17
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Elongation, mm
dN/N
BLUE – straw startRED – straw end
Apr 21, 2023 S.Movchan Straw manufacturing and QC 11
806 straws
BLUE – straw startRED – straw end
Breaking force for straws
0
0,05
0,1
0,15
0,2
0,25
2,5 3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5
Breaking force, kg
dN/N
Apr 21, 2023 S.Movchan Straw manufacturing and QC 12
BLUE – straw startRED – straw end
Average seam width
0,000
0,100
0,200
0,300
0,400
0,500
0,600
0,700
0,800
0,900
1,000
1 - 25 26 - 50 51 - 75 76 -100
101 -125
126 -150
151 -175
176 -200
201 -225
226 -250
251 -275
276 -300
301 -325
326 -350
351 -375
376 -400
401 -425
426 -450
451 -475
476 -500
501 -525
526 -550
551 -575
576 -600
601 -625
626 -650
651 -675
676 -700
701 -725
726 -750
751 -775
776 -800
801 -825
Arrange of straw numbers
Av
era
ge
se
am
wid
th, m
m
W av = 0.725 mm
806 straws: visible track width (track from ultrasonic head on straw)
Apr 21, 2023 S.Movchan Straw manufacturing and QC 13
806 straws
Average resistance
0,00
10,00
20,00
30,00
40,00
50,00
60,00
70,00
80,00
1 - 25 26 -50
51 -75
76 -100
101 -125
126 -150
151 -175
176 -200
201 -225
226 -250
251 -275
276 -300
301 -325
326 -350
351 -375
376 -400
401 -425
426 -450
451 -475
476 -500
501 -525
526 -550
551 -575
576 -600
601 -625
626 -650
651 -675
676 -700
701 -725
726 -750
751 -775
776 -800
801 -825
Arrange of straw numbers
Av
era
ge
re
sis
tan
ce
, O
hm
R av = 61.8 Ohm(L=2600 mm)
Apr 21, 2023 S.Movchan Straw manufacturing and QC 14
Straws rejection (out of parameter specification): diameter out of specification D=(9.75-9.80) mm – ~ 0.4% ( 3 straws)seam width less than W=0.4 mm – ~ 0.4% ( 3 straws)elongation less than 1 mm – ~ 2.5% (20 straws)
~ 3.3% (26 straws)
806 straws
Apr 21, 2023 S.Movchan Straw manufacturing and QC 15
Conclusion
806 straws were manufactured (February-April 2011):~ 20 straws/shift~ 100 straws per spool (L=300 m). Efficiency of mylar tape used is about
90%
Straw parameters: - diameter Dav = 9.78 mm
- sample elongation dLav= 7.0 mm (o-ring 5 mm width tensile test)- visible ultrasonic track width Wav=0.725 mm- resistance Rav=61.8 Ohm (L=2600 mm)
Straws rejection (out of parameter specification): ~ 3.3% (26 straws) Dubna straw quality is adequate to NA62 requirements