SQXF Coil 2 Impregnation Status & Plan Fred Nobrega 09/09/2014

SQXF Coil 2 Status Outline Splice block removal, bolts seized –Next coil use boron nitride Power lead splice complete –SnPb solder & activated flux used –Very difficult using silver solder and low chloride flux (Nokorode) Heater/VT trace hi-pot test passed, 1kV Straight section (poles) preparation complete 2 voltage taps out of place requiring jumpers, DR written. (photos) Quench heater over saddle/splice blocks procedure. (photos) Applied mold release to impregnation tooling Plan 2 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Seized bolts –At coil winding use boron nitride 3 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Power lead splice complete –SnPb solder & activated flux used –Very difficult using silver solder and low chloride flux (Nokorode) 4 Pre-tinning of reacted cable Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Heater/VT trace hi-pot test passed, 1kV 5 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Straight section (poles) preparation complete 6 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 2 voltage taps out of place requiring jumpers, DR written 7 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 2 voltage taps out of place requiring jumpers, DR written. 8 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Heater/VT trace over saddle/splice blocks procedure? 9 Fred Nobrega SQXF Coil 2 Status 9/9/2014

SQXF Coil 2 Near Term Plan Install shell and form blocks Roll assembly Prepare inner surface of coil Install base plate, stiffener plate, end plates Epoxy impregnate (pump down) ~ 9/22 SQXF Coil 2 Status 9/9/ Fred Nobrega