The main process methods to laminate 3D fiberglass & carbon fiber fabric:
When the 3D fabric is impregnated with a thermo set resin ,the fabric absorbs the resin and rises to the preset height.
The Resin/fabric ratio 1:1.1, curing agent: 1.5-2%.
Mainly there are two ways of process we can laminate.
1.Hand Lay up
Step1: Apply 50% of the resin on the smooth surface of mold and distribute it evenly.
Step2: Apply the 3D fabric into the resin
Step3: Roll the fabric firmly but gently along the weft direction to secure a good contact with the resin underneath.
Step4: Evenly apply the remaining 40% of the resin over the fabric and distribute it evenly
Step5: Roll resin gently into the fabric. The capillary forces of the vertical piles will impregnate the fabric and rise into the preset height.
Step6: After cured ,a piece of 3D composite is formed.
Step1: Prepare mold and treat the surface with release agent
Step2: Lay the fabric onto the mold
Step3: Place the peel-ply onto the fabric, then the infusion mesh,
finally the bagging film on the top.
Step4: Position the resin inlet and air outlet
Step5: Seal the whole bag
Step6: Connect the vacuum pump, creat a vacuum and test
Step7: Mix the resin with curing and other agent, and defoam
Step8: Infuse the mixed resin in vacuum condition
Step9: Once the fabric is fully impregnated with the resin, unseal the bag, let the air in, then the fabric will rise to the preset height
Step10: Product curing
1.These are main laminate process of 3D fabric,just for reference.
2.For different products and application, the process may be different.
3.The laminate process will depend on the design and technical requirements of final products.