At present, the mechanical winding process is widely used to make FRP storage tanks. How does this production process operate? Let's take a closer look.

This manufacturing process takes the high-strength glass fiber of glass fiber reinforced unsaturated polyester resin as the main material, and the spray formed chopped fiber is used to make the inner layer on the metal mold. The resin content of the surface felt of the inner resin layer can reach 99%, and the resin content of the spray formed chopped fiber can also reach more than 75%. The resin content of the inner resin layer directly determines the corrosion resistance of FRP storage tank.

After the inner tank of the inner FRP storage tank is made, the structural layer of the FRP storage tank is directly wound on the winding equipment, usually 20 to 30 strands of FRP fiber winding yarn are wound from inside to outside in parallel, and there are multiple layers of cross winding and circumferential winding in the middle. Because the tension and angle of the FRP fiber winding yarn are controlled by microcomputer, the wound FRP storage tank structural layer is relatively dense, with large fiber content, difficult stratification and high compressive strength.

Generally, the strength of FRP storage tank made by mechanical winding method with the same wall thickness is stronger and more durable than that of manual pasting process. When making FRP storage tank by mechanical winding, pay attention to the following matters:

1. Pay attention to the selection of raw materials, the size of each part, the selection of molds, ply design and other key matters, and be aware of them.

2. Carefully check whether the equipment operation and working parts are normal, especially whether the resin curing agent two-component pump is blocked and whether the ratio meets the design requirements; Ensure the stable operation and working accuracy of lining, winding, trimming, demoulding and other equipment.

The above is an introduction to the mechanical winding process of FRP storage tank. After reading this article, do you know something about the manufacturing process of FRP storage tank?