Treatment items and technology of glass fiber reinforced plastic sculpture surface

by:Ennas      2022-02-21
Fiberglass sculpture is a common type of sculpture we use in shopping malls children’s parks. Because its material is fiberglass, we become a fiberglass sculpture. After the fiberglass sculpture is completed, it is not directly put into use, and the surface still needs some treatment. The following is Let me introduce you to the surface treatment of glass fiber reinforced plastic sculpture and its process. I. Surface treatment of glass fiber reinforced plastic sculpture 1. Wax removal. In order to facilitate the demolding of glass fiber reinforced plastic sculpture during processing, a layer of mold release wax will be applied to the mold. Therefore, there is a layer of wax on the surface of the product. If it is not cleaned, it will affect the paint's strength and cause defects such as paint stripping and oil stains; 2. The wax removal method uses a pneumatic sander and a P180 sand cloth to carefully polish the surface of the product. , And then check whether it is cleaned up until the bright surface of the sculpture disappears. The place that the grinder cannot grind should be polished by hand, and there must be no omission, otherwise there will be serious quality problems. 3. When polishing the glass fiber reinforced plastic sculpture for spraying, first It needs to have a good plane effect. If it is a large and thicker material, it needs to be roughed with an electric angle grinder with an emery cloth wheel. If it is a relatively smooth surface after the mold comes out, you need to use a pneumatic power grinder. Sandpaper sanding, and then fill the defective places with putty. (Putty can fill up the unevenness and pitting of the glass fiber reinforced plastic material plane. At the same time, the putty can enhance the adhesion of the paint surface, and the paint will not fall off after spraying). Second, the surface treatment process of glass fiber reinforced plastic sculpture 1. Electrostatic spraying process The electrostatic spraying process uses the high-voltage electric field induction effect to make the powder coating and the coated object carry opposite charges to each other, and the powder flies toward and merges under the action of the electric field force. Adsorbed on the surface of the product, and then heated to melt the powder coating into a film. Electrostatic spraying has the characteristics of high efficiency, uniform coating, and less pollution, which is suitable for large-scale automatic coating production lines. With a variety of high-performance, medium- and low-temperature curing powders The development of coatings, the process has a good application prospect in FRP, and it is one of the focuses of current process research. The key problem of this process is the problem of static electricity of FRP. Due to the low conductivity of FRP surface, the coating powder cannot be electrostatically adsorbed well. .Through technical research, this article has successfully solved the problem of the interface between the coating and FRP, and realized the coating of high-performance powder coatings. 2. The hot melt spraying process integrates the advantages and disadvantages of the plastic powder coating process and the advantages and disadvantages of the FRP products Performance analysis and requirements, a newly developed hot melt spraying process. It is similar to the electrostatic spraying process, but this process omits the electrostatic conduction requirements for FRP products in electrostatic spraying, and the powder has a lower plasticization temperature and is suitable for substrates. Thicker glass fiber reinforced plastic products. Choose a polymer with a suitable molecular weight stage, and form a plastic film on the surface of the product after melting to absorb ultraviolet rays, avoid mechanical damage, and protect the product by using the coating's excellent aging resistance and corrosion resistance. This process heats the glass fiber reinforced plastic product, the powder flies to the product under hot air pressure and heats it, adheres to the surface of the product and then plasticizes to form a protective coating. The thickness of the coating is controlled by the temperature of the product, and the interface between the coating and the glass fiber reinforced plastic is good. Quality control parameters are easy to master, and industrial production can be realized. The key to the technology is glass The pretreatment process of the glass steel surface and the determination of the substrate temperature. 3. Powder dipping process The powder coating is suspended under the action of compressed air, and the glass steel products preheated to a temperature higher than the melting point of the powder are immersed in the container; the powder is uniformly Adhere to the surface of the product, take out the product mechanically and vibrate at a predetermined time to remove the excess powder; then send the product into the plasticizing furnace for leveling, plasticization, and cooling to obtain a uniform coating. The above is about the surface of the glass fiber reinforced plastic sculpture. I hope to help you with the introduction of the processing items and the process.
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