1. Status of straw production straw module assembling
and
straw module assembling
in Dubna
Dubna straws:
- manufactured
- stored
Assembly site:
- Module #3 (Ch2(u,v)) status
- wiring procedure
Conclusion
S.Movchan, Yu.Potrebenikov

2. Straw production status (08 April 2013)
Last serial straw #
Stored at Dubna straws
Necessary to produce - ~2700 straws
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

3. Module-3 assembly time line:
Dubna assembly site
Module-3 assembly time line:
Delivery to Dubna – September 2012
frame vacuum test – from 13/09/ weeks
straw assembly (from 08/10/2012):
gluing – finished at 07/02/ weeks
bush cutting – finished at 20/02/ weeks
module leak test – finished at 04/03/ weeks
wiring:
straw cleaning from dust – finished at 15/03/2013
wiring of 450 straws – finished at 03/04/ weeks
(a half of the module)
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

4. Wiring preparation procedures Wiring procedure - vertical option
crimper certification
straw cleaning
end-plug sizing
wire re-spooling
Wiring procedure - vertical option
the same wire tension (no friction)
no scratches on straw cathode due to wire insertion
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

5. Crimpers and tested samples
2 pneumatic and 5 hand crimpers
micrometer calibration
Tested samples:
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

6. Crimper certification results
Crimped pin thickness Status
Hand crimpers:
Crimper # mm OK
Crimper # mm BAD
Crimper # mm OK
Crimper # mm OK
Crimper # mm OK
Pneumatic crimpers:
Crimper # mm OK
Crimper NO# mm OK
(working pressure dP=6 Bar)
Reference doc: ALT-IT-QP-0052 (H.Danielsson)
nominal crimped pin thickness h=( /-0.00) mm
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

7. Straw cleaning before wiring
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

8. End-plug sizing WEB’s sides Opposite sides D=9.63 mm and 9.66 mm
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

9. (to prevent wire sticking)
Wire re-spooling
(to prevent wire sticking)
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

10. Wiring procedure Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

11. WEB installation Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

12. Tooling for unwind wire
(top of the module)
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

13. Insertion wire to a Teflon plug
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

14. Fixation of a needle to the wire
(by cambric)
Needle weight is
about 0.7 gram
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

15. Insertion the needle into the straw
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

16. Teflon plug fixation Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

17. Move the wire inside the straw by the motor
Bottom part of the module
No needle rotation and oscillation
Across the straw axis
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

18. before removing the scotch
Pin insertion
(top of the module)
fix the wire by a scotch
put on a pin on the wire
Fix the wire
before removing the scotch
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

19. Pin compressing & crimping, wire cutting
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

20. A clip hanging before needle cutting
The needle cutting
(bottom)
A clip hanging before needle cutting
Wire cutting
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

21. Pin insertion & wire tension with F=90 g
(bottom)
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

22. Pin crimping & wire cutting
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

23. 1 view - 450 straws – fully assembled
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

24. Total: (9-14) min/wire => 10 min/wire
Wiring & crimping
2 technicians
48 wires per day (10 min/wire=6 wires/h=48 wires/shift)
time scale check:
- wire insertion – (5-8) min
- crimping – (4-6) min
Total: (9-14) min/wire => 10 min/wire
straw by straw (baseline option)
Rate - 3 cells per day (3 cells x 16 wires)
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

25. Conclusion Straw manufacture – ok!
1321 straws stored and ready for use
Module #3 assembly:
straw gluing – done
straw cutting – done
straw preliminary cleaning – done
module overpressure test – done
straw final cleaning – done
½ module wiring - done
Next:
wiring – in progress
HV test - in preparation
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna

26. Thank you!
Apr-8-13
S.Movchan, Yu.Potrebenikov Status of work in Dubna