WP5.2 - TCLPX/TCTPXH Prototypes Production Follow-up

Friday 22 Jul 2022, 14:00 → 14:50 Europe/Zurich

zoom (CERN)

MINUTE 49

Mechanical table assembly:

• Cycling to 10k finished, Windows update stopper the cycling.

TCC:

• The TCC test bench burned
• 2 quotations ongoing from Julabo and Huber
• Do not touch in any case the TCC because we need the data of LS2 collimators (TCSPM and TCPPM)
• Steven received the inputs and specification to design a new posing system for the jaws
• Carlotta needs thermocouples at the inlet and outlet of the jaw circuit (fast response better)

Design:

• Jaw lifting tool produced by STI – cleaning ongoing
• Jaw and tank procedure to update in 4 weeks

Absorber materials update:

• Blocs 4, 5, 6 received and bloc 3 sent back because of porosity. Blocs 7, 8, 9, 10 under control, they send it by the end of next week. Vacuum test of the 7 blocks planned mid of August

VSC:

• Waiting for costs and delays
• Check an arrangement between STI and VSC to order one time for all the components
• 15^th of July reception of jackets
• Prod of autoregulated testbench for the serie
• How VSC find a leak on the BPM flanges?
• Graphite tapering RGA -> to check the feasibility, Carlotta and Fede give the input of a 1200°C TT for 72h. This may be interesting to check if the temperature of time can be less : we can do the first reliable solution for 4 of them regarding the planning and then the 2 ones with the gap of 0.2mm can be tested differently.

BI:

• A discussion is needed to check with CEM the viability of the proposition

Production:

• Mistakes on the 2 tanks: TCTPXH tank in finition process, the thickness of the bottom plate is 0.6mm under the nominal value -> Solution: add thick washer between tank plot and mechanical table. TCLPX tank bottom plate welded in the wrong sense at 180° -> Solution: Remove the end plates, remachine them and keep the tank extremities and re-weld the new plate + cleaning
• Mistake on the cooling pipes: Wrong diameter in the beginning/ end of the pipes -> solution is to add an longer fitting ring, thanks to that we can use the leak test tool
• Bellows on shaft end by Tuesday, then cleaning and FE end of next week, welding on tank in 3 weeks then leak tests
• First cooling pipes brazing finished -> leak test
• RF fingers additional production ongoing
• Re-machining of the bellow shaft this week
• Jaw copper parts TCTPXH n.1 finished + 4 TCTPXH parts under metrology
• Last BPM flange repaired but VSC find a new leak on one of them -> reparation at the workshop
• Manifold from STI done + lot of other parts

Additional screws:

• We now have 4x3 screws: Rollvis, Schaeffler, Ewellix

Graphite tapering:

• Procurement ongoing

Update on planning:

• Adding delays on the tank regarding Emilien inputs

Update for the serie:

Link to EDMS minutes : https://edms.cern.ch/ui/#!master/navigator/document?D:100889947:100889947:approvalAndComments

14:00 → 14:45 Ongoing topics

Speaker: Dylan Baillard (CERN)