ye+4 disks = 2 nos. (12 sectors each) support structures = 2nos. aisi 1045 steel bar = 1 no. for...
TRANSCRIPT
YEYE++4 disks = 4 disks = 2 Nos. (12 2 Nos. (12 Sectors each)Sectors each)
Support Structures = Support Structures = 2Nos. 2Nos.
AISI 1045 steel bar = AISI 1045 steel bar = 1 1 No. No.
for checking dimension of 680 mm (0/-0.5)for checking dimension of 680 mm (0/-0.5)
Fasteners Fasteners = = 1 1 setset
(Min. required to allow a trial Assembly at HMC-(Min. required to allow a trial Assembly at HMC-
3)3)
YEYE++4 SHIELDING WALL 4 SHIELDING WALL FOR CMSFOR CMSSCOPE OF SCOPE OF WORKWORK
2
1.1. Plates/ Rods/ Bars:Plates/ Rods/ Bars:
Material ordered Material ordered = 10= 10thth Dec., 2010 Dec., 2010
Material shipped Material shipped = 21= 21stst March, 2011 March, 2011
Material received Material received = 29= 29thth April, 2011 to 6 April, 2011 to 6thth May, May, 20112011
2.2. Beam HEB-220 and Channel UPN-400 Beam HEB-220 and Channel UPN-400
Material ordered Material ordered = 29= 29thth June, 2011 June, 2011
Material Shipment Material Shipment = 11= 11thth Sept., 2011 Sept., 2011
Material received Material received = 22= 22ndnd Sept., 2011 Sept., 2011
3.3. 1 set of fasteners = July, 20111 set of fasteners = July, 2011
YEYE++4 SHIELDING WALL 4 SHIELDING WALL FOR CMSFOR CMSMATERIAL PURCHASEMATERIAL PURCHASE
3
Mill Test Certificates of standard ASTM A36 Material received from the supplier..
Test reports of material samples tested for Cobalt content (< 0.1%, as per requirement).
Material acceptance from CERN Material acceptance from CERN == 11stst June, June, 20112011
YEYE++4 SHIELDING WALL 4 SHIELDING WALL FOR CMSFOR CMS
MATERIAL TESTING AND MATERIAL TESTING AND ACCEPTANCEACCEPTANCE
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Material testing completed and following Material testing completed and following certificates were submitted to CERN on 25certificates were submitted to CERN on 25thth May, May, 20112011
Documents submitted to CERN Documents submitted to CERN == 1212thth April, 2011 April, 2011
Final cutting Plan
Final weld Identification / details
Quality Plan
Production Technology
Quality Plan approved by CMSQuality Plan approved by CMS == 11stst June, 2011 June, 2011
YEYE++4 SHIELDING WALL 4 SHIELDING WALL FOR CMSFOR CMS
ENGINEERING REPORTENGINEERING REPORT
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• Final Assembly of 1st Disk (all 12 sectors) and its Load testing was carried out on 14th & 15th Feb., 2012. Detailed reports were submitted & accepted by CERN.
• All the 12 Nos. of Sectors with their beams and sectors of centering rings were dispatched to Karachi from HMC-3, Taxila on 27th March, 2012.
• Assembly of Supporting Structure with Sectors was completed and inspected on 1st & 2nd March, 2012. Detailed reports were submitted & accepted by CERN..
Manufacturing of Second (YE-4) Disk.
•Sector -1/+7, -2/+6 : Inspected on 19th & 20thApril, 2012. QA reports were submitted to CERN for acceptance.
•Sector -3/+5, -5/+3, -4/+4: Final Machining completed and are in the process of de-burring & cleaning.
• Sector -6/+2, -7/+1, -8/+12, -12/+8 : Fit-up and welding completed. Ready for Final machining.
•Sector -9/+11: Fit-up completed and Final welding in progress.
•Sector and -10/+10 : a) Welding of wings of Base plate and perforated plate completed. b) Drilling / cutting of holes for concrete in perforated plate in progress. c) Marking and fit-up & welding of bars on the Base plate completed• Sector -11/+9 : a) Welding of Base plate and perforated plate completed. b) Drilling / cutting of holes for concrete in perforated plate yet to start.
•Fabrication of Support Beam (Dwg # CMSSYEM0155) completed and ready for machining.
•Machining of Fixing support (Dwg # CMSSYEM0160) and Support left & right (Dwg # CMSSYEM0157 & Dwg # CMSSYEM0158) completed.
•Final Assembly of the 2nd Disk/ Supporting structure possible by end of June, 20
•CMS is requested to provide the visit schedule of Inspector to witness the load testing and for final Inspection of the 2nd Disk/ Supporting structure.
•SKILLED MANPOWER FROM HMC-3
•EXPECTED TIME OF ASSEMBLY AND INSTALLATION
•YE+4•YE-4
•ESTIMATED DURATION OF THE ACTIVITY
•NUMBER OF PERSONS REQUIRED