Vacuum forming process of resin in composite industry

We have specially developed AB two-component platinum catalyzed liquid silicone rubber suitable for vacuum bag process operation. The newly developed silicone has specifically solved the most difficult problem of silicone rubber vacuum bag operation - The silicone rubber vacuum bag rapidly expands and heats up in a short time after AB resin is mixed in the process of injecting resin, and the temperature is extremely high. The silicone rubber vacuum bag will be stretched open when resin reaction expands, easy to deform, and high temperature for a long time, Silicone vacuum bag is easy to be burnt; This requires silicone rubber raw materials to have extremely high tear resistance and high temperature resistance. At present, newly developed products have successfully solved this problem.

AB two-component liquid silicone rubber vacuum bagging process has creatively solved the problem of vacuum molding process in composite material industry and gradually replaced the method of disposable plastic vacuum bag; The vacuum injection process is to use one mold and one silicone rubber vacuum bag to make large composite parts, complex composite materials, glass fiber reinforced plastic products, main load-bearing components of aerospace equipment, etc. The reusable silicone vacuum bag plays an important role in the vacuum induction process. It not only simplifies the operation of sealing and molding processes, but also greatly reduces the production cost of labor and time, The stability and integrity of the new composite product quality are greatly guaranteed when the vacuum resin is molding.

PREPREG PROCESS OPERATION INTRODUCTION

Mixed resin - pour the mixed resin into the prepreg machine - install dry cloth on the prepreg machine - start prepreg - send the prepreg cloth into the mold.

PROCESS OF FLOW VACUUM RESIN

Prepare the mold - apply the release agent - stick the release cloth - apply the release resin - lay the prepreg layer, light wood, etc. - lay the release cloth, adhesive felt Vacuum film - open the vacuum system and mold heating system - the initial curing time is 6 hours at 40-50 ℃ - positioning and installation of rib plates - measurement of bonding surface gap - height adjustment of rib plates - apply adhesive - mold closing is heated at 60 ℃ and cured for 6 hours - demoulding is completed.

OPERATION MODE OF SILICONE VACUUM BAG

The silicone vacuum bag molding process is to make the product more dense and improve the fiber resin ratio, so as to improve the mechanical properties of the preform, which is sealed between the mold and the silicone vacuum bag by vacuuming and evenly applying pressure. The vacuum evenly applies pressure to make the product more dense and improve the fiber resin ratio, so as to improve the mechanical properties.