① Preparation: The PET lower film and PET upper film are firstly laid flat on the production line and run at an even speed of 6m/min through the traction system at the end of the production line.
② Mixing and dosing: according to the production formula, the unsaturated resin is pumped from the raw material barrel to the storage barrel, and then quantitatively extracted into the mixing container through the transportation pump, and then the hardener is added proportionally according to the resin dosage and stirred evenly.
③ Loading: the mixed material is extracted by the metering pump and then flows evenly on the flat PET film, the film is moved forward at a uniform speed by the traction force, and the thickness of the attached material is controlled by the scraper, and the mixed material is uniformly adhered to the film, and the air bubbles in the material are further discharged through the resin extrusion regulating equipment and the leveling rollers to control the uniformity of the thickness of the sheet.
④ Spreading impregnation: The lower loaded film coated with resin paste enters the glass fiber settling room under the traction of the unit, passes through the knife slit that can control the thickness, and then spreads the glass fibers cut by the yarn cutter to the line of the resin film through the yarn spreading machine to fully impregnate the film with the resin.
⑤ Defoaming: After the above process, the film is laminated in the film area and the air is removed by the spreading roller.
⑥ Curing: Enter the box heating system for heating and curing molding.
⑦ Cutting: After molding and curing, cut out the corresponding size by cutting equipment.
Post time: Sep-18-2024
