20-nov-15s.movchan straw manufacturing and qc1 straw machine status straw fabrication option 1:...
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Apr 20, 2023 S.Movchan Straw manufacturing and QC 1
Straw machine status
• straw fabrication option 1: removing metallization from tape edges by laser• study straw #3678: results• conclusion• straw fabrication option 2: moving anvil • study straw #3675: results• conclusion
Presented by S.Movchan
Apr 20, 2023 S.Movchan Straw manufacturing and QC 2
Straw #3678 :
F=200 gram + P=50 a.u.V=10 mm/sec
first 13 samples (10 cm each) of straw are fabricate from tape without metallization on it edges (removed by laser)
samples 14÷29 are fabricate from standard tape
check seams by microscope: zoom x 200, transmit light
Apr 20, 2023 S.Movchan Straw manufacturing and QC 3
Tape with removed metallization from both edges by laser
0.5 mm
0.5 mm
Apr 20, 2023 S.Movchan Straw manufacturing and QC 4
Straw #3678
Sample #
Apr 20, 2023 S.Movchan Straw manufacturing and QC 5
3 seam types: zoom x 200
1. no metallization:
PET+PETwelding
2.Cu+Au
metal+metalwelding
3.PET+PET
andPET+metal
welding
Apr 20, 2023 S.Movchan Straw manufacturing and QC 6
Very good seams (dL>9 mm): zoom x 200
Sample #1 Sample #10
0.25 mm
Apr 20, 2023 S.Movchan Straw manufacturing and QC 7
Very good sample #10: dL=10 mm (zoom x 60)
After seam brake
Apr 20, 2023 S.Movchan Straw manufacturing and QC 8
Good seams (dL>4 mm): zoom x 200
Sample #6 (dL=4 mm) Sample #8 (dL=9 mm)
Apr 20, 2023 S.Movchan Straw manufacturing and QC 9
“Bad” seams (dL<1 mm): zoom x 200
Sample #5 Sample #7
Apr 20, 2023 S.Movchan Straw manufacturing and QC 10
1) Preliminary: laser don’t make worse seam quality
2) 3 types of seam: PET+PET, metal + metal, PET + metal
3) Very good seams are without metal particles inside seam
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4) Difference between good seams (samples #6 and #8) and bad seams (samples #5 and #7) in case when metal exist inside seam is unobvious
Apr 20, 2023 S.Movchan Straw manufacturing and QC 11
Straw #3675 fabricated with moving anvil:
F=200 gram + P=50 a.u.V=10 mm/sec
check seams by microscope: zoom x 200, transmit light
Apr 20, 2023 S.Movchan Straw manufacturing and QC 12
Dust accommodation on moving anvil
Apr 20, 2023 S.Movchan Straw manufacturing and QC 13
Straw #3675: F=(5-6) kg, dL=(5-19) mm
Samples 13-32 were producewith moving anvil
Samples 26-32:
PET without metallization
Apr 20, 2023 S.Movchan Straw manufacturing and QC 14
1 5 9 13
Apr 20, 2023 S.Movchan Straw manufacturing and QC 15
17 21 25 29
Apr 20, 2023 S.Movchan Straw manufacturing and QC 16
Conclusion
Preliminary: - straw quality is good - additional investigations are needed
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