POROUS SURFACE - PREPREG

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POROUS SURFACE - PREPREG

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SyamilZaini	SyamilZaini posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 3, Visits: 14	REFER ATTACHMENTS FOR DETAILS Type of Material Carbon 922-1 TENAX HTA (Carbon Graphite), FM300 Surfacing Film Type of Material (Mould) Steel Bagging Sequence Laminate > Solid release film > breather Ultraweave > bagging film Curing recipe (Autoclave Cure) 1.Apply full vacuum (22 inHg @ 74.5kPag minimum). 2.Apply pressure to 500±10 kPag (72.52±1.45 psig) and begin heat up. 3.Vent vacuum to the atmosphere as a part of the pressure cure cycle, when the autoclave pressure is between 103.42 kPag – 137.89 kPag (15 – 20 psig). 4.Heat up to 179±5°C at a rate of 2±0.5°C/min. Heat ramp rates only apply when lagging thermocouple achieve 48.88°C (120°F). Heat ramp shall be between 25-225 minutes. 5.Dwell for 120 – 300 minutes at 179±5°C. Dwell temperature is achieved when lagging temperature achieve minimum dwell temperature (minimum 173.8°C). 6.Cool down at a rate 2±0.5°C/min. 7.Release pressure when the lagging thermocouple decreases to 65.6°C (150°F). PLEASE HELP ME ON THIS. HOW TO ELIMINATE THIS POROUS SURFACE ON CURVATURE Attachments Picture 015.jpg (425 views, 234.00 KB) Picture 017.jpg (581 views, 247.00 KB) Picture 018.jpg (423 views, 183.00 KB) Picture 019.jpg (421 views, 179.00 KB) Picture 020.jpg (408 views, 173.00 KB) Picture 021.jpg (434 views, 162.00 KB) Picture 023.jpg (356 views, 167.00 KB) Edited 11 Years Ago by SyamilZaini
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