04192018 Coil Working Group Meeting General Fabrication Status 2 nd Gen W amp C Reaction Impregnation Inspection Status QXFA 101102 104106 LBNL Assembly QXFA 107 ID: 742156
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Slide1
Coil Fabrication Status
Miao Yu04/19/2018
Coil Working Group MeetingSlide2
General Fabrication Status
2
nd
Gen.
W & CReactionImpregnationInspectionStatusQXFA 101-102, 104-106@LBNL AssemblyQXFA 107√√√√QXFA 108√√Prep.QXFA 109√Prep.QXFA 110Waiting for approved MIP by CERN
2
MQXFA2: 101 (cable to OL RE Saddle short 10 MΩ resistance at 10 V, OL-IL RE saddles short) 102,104,105 and 106
MQXFA3: Pre-series
107-110
(107 cable to OL RE Saddle short, 125 k
Ω
resistance at 20 V)
202 or 203 from BNLSlide3
CTD 1202 during long coil curing
2 hrs curing at 150 deg. C
QXFP 1a to QXFP 5
(May 2015 to Jun. 2016)
Good bondingQXFA 101 to 109(Jul., 2016 to now)Locally separated: L1 and L2, lead turn, multi turns from last conductor groupProcurement record: 2 kits, Jun. 2015: three parts kitIn July 2015, CTD switched to two parts kit At least 12 kits were procured since then.3Slide4
Findings
CTD reviewed the raw material from the supplier in January 2016, and found that the composite was different, and after verification test on the mixed binder, the results met all CTD specs, so there was no further investigation.
The final product after 550 °C heat treatment remains the same, however the bonding effect during green curing is different.
It is very difficult to obtain the formula from the original CTD 1202, because CTD Inc. do not have any original binder.
To cure faster, CTD Inc. changed the catalyst from the high temperature catalyst in Part A to room temperature catalyst, designated it as CTD 1290.4Slide5
Actions
Fermilab
Send the presentation to CTD
Provide CTD our recipes (turn at the coil ends curing and the whole coil curing)
10-stack measurement using CTD 1202 and 1290Continue using CTD 1202 and modify the saddles (adding slits and rounding the tips)CTD, Inc.Investigate on CTD 1202 using Fermilab recipesSend a quote and schedule for R&D program to investigate the formula of the original CTD 1202.5Slide6
Saddle Modification