Process Name
Resin Transfer Molding
Resin Transfer Molding Proess
Process
1.Preform
Fiber preform or dry fiber reinforcement is packed into a mold cavity that has the shape of the desired part.
2.Tool
The mold is then closed and clamped.
3.Injection
Catalyzed, low viscosity resin is then pumped into the mold under pressure, displacing the air at the edges, until the mold is filled.
4.Cure
After the fill cycle, the cure cycle starts during which the mold is heated, and the resin polymerizes to become rigid plastic. Gel coats may be used to provide a high-quality, durable finished product.
5.Demold
Key advantages of RTM process
Good surface quality
Wide range of reinforcements
Large, complex shapes
Dimensional tolerances
Low capital investment
Less material wastage
Tooling flexibility
Low environmental impact
Labor savings
Disadvantages of RTM process
Infiltration process may produce bubbles and dry spots.