Status of straw production straw module assembling

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Presentation transcript:

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

Straw production status (08 April 2013) Last serial straw # - 4270 Stored at Dubna - 1321 straws Necessary to produce - ~2700 straws Apr-8-13 S.Movchan, Yu.Potrebenikov Status of work in Dubna

Module-3 assembly time line: Dubna assembly site Module-3 assembly time line: Delivery to Dubna – September 2012 frame vacuum test – from 13/09/2012 4 weeks straw assembly (from 08/10/2012): gluing – finished at 07/02/2013 14 weeks bush cutting – finished at 20/02/2013 2 weeks module leak test – finished at 04/03/2013 2 weeks wiring: straw cleaning from dust – finished at 15/03/2013 wiring of 450 straws – finished at 03/04/2013 2 weeks (a half of the module) Apr-8-13 S.Movchan, Yu.Potrebenikov Status of work in Dubna

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

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

Crimper certification results Crimped pin thickness Status Hand crimpers: Crimper # 1 0.42 mm OK Crimper # 2 0.47-0.50 mm BAD Crimper # 3 0.41 mm OK Crimper # 4 0.40 mm OK Crimper # 5 0.40 mm OK Pneumatic crimpers: Crimper # 43 0.44-0.45 mm OK Crimper NO# 0.42 mm OK (working pressure dP=6 Bar) Reference doc: ALT-IT-QP-0052 (H.Danielsson) nominal crimped pin thickness h=(0.40 + 0.05/-0.00) mm Apr-8-13 S.Movchan, Yu.Potrebenikov Status of work in Dubna

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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