Silverdale, PO Box 78
Auckland , 0944 NZ
As Seen In CompositesWorld
Single vs. double-bagged infusion
Russell Emanis (JB Martin, St.
Double-bag infusion: Thickness gradient and pressure
Cliff Walker (Vacmobiles, Auckland, New Zealand), explains how the large pressure changes during infusion result in laminate compression and thickness variations across the part.
Absolute vacuum gauge
The following is an excerpt from Issue 12 of The Composites Letter, published by www.vacmobiles.com (reposted here by permission) that outlines the importance of using an absolute vacuum gauge to measure pressure levels during double-bad infusion:“Often called a precision vacuum gauge, an absolute gauge actually works the opposite way to a conventional dial type vacuum gauge.
- Vacuum-assisted resin transfer molding equipment (VARTM
- Presses, vacuum
- Composite repair equipment
- Vacuum/repair tables (heated/unheated)
- Hoses, vacuum
- Vacuum valves and pumps
- Other supplies
- Leak-testing equipment
- Pressure monitoring equipment