impregnation mold October 2016 I Impregnation data Parameter Effect Purge the mold with N2 Eliminate the residual trace of release agent solvent it always smell the solvent at the exit of the mold ID: 790970
Download The PPT/PDF document "Internal review of the 11T" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Internal review of the 11T impregnation moldOctober 2016
I
Slide2Impregnation data
Parameter
Effect
Purge the mold with N2Eliminate the residual trace of release agent solvent it always smell the solvent at the exit of the mold.Bake-out (outgassing) of the mold5 days are recomended by Oxford InstrumentPressure at mold inlet before impregnation2 to 9*10-1 mbar Dependent of the outgassing number of daysOut gassing of the resin before impregnation6-to 9*10-2 mbar Resin change of temperature during the impregnationWe should minimise it by controling it and warm the tube and the vanne Injection point Should arrive in a channel not directly on the coilTime for resin to cross the mold without channel on the mandrel1h40 – 5h30 depending of the coil compresionTime for resin to cross the mold with channel on the mandrel47 min for the coil 111 (The coil 110 test for the channel took 50 min for the resin to exit)Curing cycle At atmospheric pressure 1 barUnder pressure 3 bar with Nitrogen (modification on Telstar)
S. Tavares R. Gauthier October 2016
2
Slide3Impregnation data: bake-out and resin degassing
Coil
Mold réf.
numberBefore impregnation, mould bake-outResin preparationTime to purge mould with N2, at RTTemp. mould*Bake-out (outgassing)Press. chamberTemp. reservoirTimePress. reservoir
[h]
[°C]
[h]
[mbar][°C][min][mbar]#1051360483x10-355-60No dataNo data#1061460484x10-355-60606x10-2#1071360724x10-355-6060No data#10823110-60 **723x10-355-6060No data#1092360962x10-355-6060~7.5x10-2#1112360722x10-355-6060~7.5x10-21122460722x10-355-60608.1x10-21132462962x10-355-60608.1x10-2
S. Tavares R. Gauthier October 2016
NB: coil #110 not listed, as it was experimental and not representative
*The heating cartridges are shut down before the start of the impregnation.
** The mould was new, heat up to 110°C to improve bake-out
Slide4Impregnation data: bake-out and resin degassing
NB: coil #110 not listed, as it was experimental and not representative
Coil
Impregnation parametersVacuum in the chamberFeed methodPressure at mould inlet before impreg.Pressure in the mixing tank during impreg.Mould TempTime for resin to cross the mouldTotal Time: cross mould + fill reservoirSoak time with 1
VPI milking cycle
[mbar]
---
[mbar][mbar][°C][h][h][h]#1053x10-3DPNot meas.No data55-604hNo data3#1064x10-3Not meas.16055-601h402h2+6 ***#1074x10-3Not meas.10055-602h453h453#1083x10-3Not meas.10055-601h407h(less filled)3#1092x10-38.2x10-1 (one day before)500-1000(flowmeter)55-623h006h4#1112x10-32.1x10-1 500-1000(flowmeter)55-62< 1h (47 min)(mandrel with channels)4h31122x10-3DP3.1x10-1500-1000(flowmeter55-611h47341132x10-3DP2.7*10-1600-1000(flowmeter55-622h3043
S. Tavares R. Gauthier October 2016
4