18-sep-15s.movchan straw manufacturing and qc1 remove metallization from tape by laser. part 2 laser...
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Apr 19, 2023 S.Movchan Straw manufacturing and QC 1
Remove metallization from tape by laser. Part 2
• laser mode optimization for Hostaphane RNK 2600• samples for Molinex 406 (for laser optimal mode)• Hostaphane RNK 4600: spool #17 and spool #18• conclusion
Presented by S.Movchan
Apr 19, 2023 S.Movchan Straw manufacturing and QC 2
Laser mode optimization for Hostaphane RNK 2600
Goal of optimization: Remove metallization and to do min PET irradiation
Laser graver parameters:- laser power
- laser pulses frequency- lines per mm
- laser beam scan speed
Optimization to do for stopped tape (speed v=0 mm/sec)
Total: 21 samples
Apr 19, 2023 S.Movchan Straw manufacturing and QC 3
Laser power:
W=20% W=30% W=40%
P=20%, 40 kHz, beam scan speed -200 mm/sec, 20 lines/mm
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 4
Laser pulses frequency:
P=20%, 20 kHz, beam scan speed -200 mm/sec, 20 lines/mm
20 kHz 40 kHz
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 5
Laser beam lines per mm:
20 lines/mm 40 lines/mm 60 lines/mm
P=20%, 20 kHz, beam scan speed -200 mm/sec, 20 lines/mm
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 6
Laser beam scan speed:
P=20%, 20 kHz, beam scan speed -200 mm/sec, 20 lines/mm
200 mm/sec 600 mm/sec
1000 mm/sec400 mm/sec
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 7
RNK 2600, extra power: (zoom x200)
Po: W=30%, 40 kHz, beam scan speed -200 mm/sec
40 lines per mm
60 lines per mm
Apr 19, 2023 S.Movchan Straw manufacturing and QC 8
Molinex 406, extra power:
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 9
Laser optimal mode for non moving tape:
W=30%
Tape speed: 0 mm/sec
Summary:Power: W=(30-40)%Frequency: F=40 kHzBeam speed: (600-1000) mm/secBeam focus: focused (D=50 µm)Lines/mm: 40Scan type : by line
W=40%
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 10
RNK 2600, laser optimal mode + circle+:
Scan line speed – 46 mm/sec
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 11
Molinex 406, laser optimal mode + circle:
Scan line speed – 46 mm/sec
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 12
Laser optimal modes:
Moving tapeSummary:
Power: W=40%Frequency: F=40 kHzBeam speed: 6000 mm/secBeam non focus: + 2 mmScan type: by circle with D=0.4 mmTape speed: 46 mm/sec
Max manufacture speed: 46 mm/sec
Non moving tape Summary:
Power: W=(30-40)%Frequency: F=40 kHzBeam speed: (600-1000) mm/secBeam focus: focused (D=50 µm)Lines/mm: 40Scan type: by lineTape speed: 0 mm/sec
Manufacture speed: (10-46) mm/sec
Apr 19, 2023 S.Movchan Straw manufacturing and QC 13
Spool #17 (RNK 4600): remove metallization from both tape edges
Tape edge: W=0.4 mm
Tape width:W=31.4 mm
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 14
Spool #18 (RNK 4600): remove metallization from one tape edge
L=1.5 m L=1.5 m
Zoom x 200
Apr 19, 2023 S.Movchan Straw manufacturing and QC 15
Conclusion
Laser type: solid, wave ~ 1 µm Nominal laser power: P=20 WBeam effective diameter: about 60 µm (nominal - 50 µm)
Optimal operation mode (minimum power for metal removing):Laser effective power: (4-5) WLaser beam frequency: F=40 kHzN laser pulses per point: 1 pulse
Beam scan speed: ≤ 6000 mm/sec Beam non focus: + 2 mm Scan type: by circle with D=0.4 mm
Line speed of metal removing: up to 50 mm/sec
Laser beam melt base material (PET) at power about (8-10) W
2 spools (20 meters) ready for manufacture test straws
Apr 19, 2023 S.Movchan Straw manufacturing and QC 16
New straws:
Hostaphan RNK 4600, Cu+Au
Straws fabricate for tests:# 3684 – no metallization on one tape side # 3685 – no metallization on both tape sides # 3686 – no metallization on both tape sides # 3687 – no metallization on both tape sides
Apr 19, 2023 S.Movchan Straw manufacturing and QC 17
Straw #3685:
F=(6.0±0.5) kg
dL= (11÷22) mm
Apr 19, 2023 S.Movchan Straw manufacturing and QC 18
Conclusion
2 types of test straws fabricated (from Hostaphan RNK 4600): - metallization removed from one tape edge (straw #3684) - metallization removed from both tape edges (straw # (3685-3687))
Straw tensile test results:Straw #3685:
F=(6.0±0.5) kgdL=(11÷22) mm
for old straws: F=(3.5-6) kg, dL=(1-10) mm, non stable results
Gas leak tests – in progress