Jul 3, 2022 S.Movchan Straw manufacturing and QC 1 move metallization from tape by laser. Part • 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
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18-Sep-15S.Movchan Straw manufacturing and QC1 Remove metallization from tape by laser. Part 2 laser mode optimization for Hostaphane RNK 2600 samples.
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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
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