MQXFA 03 Coil Review Coil QXFA 202 Jesse
- Slides: 12
MQXFA 03 Coil Review Coil QXFA 202 Jesse Schmalzle March 14, 2019
Outline § § § Notes / photos Reaction plots Electrical Data CMM DRs March 14, 2019 2
QXFA 202 § Prior to change for B 6 adjustment § § § Pole gaps § § 1. 8 mm after reaction Lead / Wire length § § § 4 layers glass on pole 10 mil G 11 shims on midplane 2 m coil leads 1 m coil tap wires 4. 5 m splice tap wires 1 m quench heater wires Coil length § 4531. 4 mm overall length March 14, 2019 3
QXFA 202 Reaction Cycle: 48 Hours at 210 C 48 hours at 400 C 50 hours at 665 C Slight drift noted during 665 step Oven control remained steady. Witness samples inside reaction fixture. March 14, 2019 4
QXFA 202 Missing taps: B 5 & B 6 March 14, 2019 5
QXFA 202 March 14, 2019 6
QXFA 202 March 14, 2019 7
QXFA 202 § Faro arm coil size measurements: § Primary best fit to coil OD, secondary to keyway (midplane where no keyway). Nominal Coil Dimensions: Outer Radius = 113. 376 mm Midplane offset =. 125 mm Keyway Width = 14. 00 mm March 14, 2019 8
QXFA 202 8 (207) 61 (1540) 155 (3940) 13 (320) 92 (2340) 170 (4323) 29 (740) 124 (3140) 174 (4426) March 14, 2019 9
QXFA Coils § Coil size comparison: March 14, 2019 10
QXFA 202 § DRs § Raised wires noted during respooling, along much of the cable. § Several instances of collapsed cable during winding. § All reworked without removing insulation sleeve. § Several small areas on coil OD where conductor was slightly displaced radially after curing layer 2. § Cause was small lumps from glass/binder paste applied to cover minor scuffs in fiberglass prior to curing. § Argon flow rate low for a few hours during 665 step. § Issue with cylinder caused flow to slow down over several hours before it was restored. Flow did not stop and positive pressure was maintained. § Voltage taps B 5 & B 6 are missing. § Installed in wrong location during winding, removed before trace install. § A few minor fiberglass insulation repairs. § R, L values slightly outside range listed in doc 521 v 12. March 14, 2019 11
QXFA 202 § Depressions from binder paste § After cure, residual removed, after react. March 14, 2019 12
