Fiberglass tree grates are in the ascendant, and the existing products in the market are of mixed quality, with uneven quality, which has brought many adverse effects to the vast number of users. In order for everyone to have a better understanding of fiberglass tree grates and identify the product quality of fiberglass tree grates, let's briefly introduce how to identify the product quality of fiberglass tree grates.
When choosing fiberglass tree grates, you can judge from four aspects:
1、 Production raw materials
The main production materials for fiberglass tree grates are resin, fiberglass fibers (abbreviated as fiberglass), and filling powders.
1. Resin. High quality fiberglass tree grates are made of high-quality resin: unsaturated ortho benzene resin 196, colorless and transparent. Low viscosity, low heat release, low shrinkage, high-speed curing, high-speed compatibility, and bright glossiness. The produced fiberglass tree grates are flat and smooth, with good glossiness, high strength, and a certain degree of toughness. If inferior resin is used, it will be completely opposite. Inferior resin is turbid, high viscosity, high heat release, high shrinkage, relatively slow curing, and poor compatibility. The produced fiberglass tree grates have many pores, are easy to break, and have poor strength and toughness.
2. Fiberglass filament (abbreviated as fiberglass). The fiberglass fiber can enhance the toughness of the grid in fiberglass tree grates. High quality fiberglass fibers, such as alkali free fiberglass fibers, have higher strength than steel wires and have a certain degree of toughness, chemical stability, good weather resistance, almost no water absorption and no combustion when exposed to fire. Their high strength can also be used as tire cord. The fiberglass fibers of the 1220 * 2440 * 38 specification fiberglass tree grate are laid in 8-9 layers, so the product strength is guaranteed. Some manufacturers use fiberglass fibers with high alkali fibers as alkali free fibers, which have lower strength and poor water and alkali resistance.
3. Filling powder. The filling material for fiberglass tree grates is aluminum powder. The high-quality filling material is delicate and pure white, with flame retardancy and complete fusion with resin. The produced boards have beautiful colors, good transparency, and high toughness. On the contrary, low-quality filler powder such as calcium powder is rough and dull, easily swells due to water absorption, and is not flame retardant. The resulting board lacks luster and is relatively brittle and lacks toughness.
2、 Production process
The production method of fiberglass tree grates is semi machine and semi manual. The quality, proficiency, and production process requirements of the production process personnel (such as the number of fiberglass layers and the proportion of filling materials) will have a significant impact on the quality of fiberglass tree grates. Therefore, please try to choose enterprises with a long history, formal standards, and large production volume.
3、 Comparison of finished products
High quality fiberglass tree grates have no obvious cracks in appearance, fewer pores, bright and pure colors, good transparency, high toughness and strength, good surface smoothness, and long service life; However, low-quality fiberglass tree grates have cracks, numerous pores, impure color, and insufficient glossiness in appearance. Its service life is also relatively short.
4、 Actual usage effect
Practice is the only criterion for testing truth, and time is also the most fair judgment. Fiberglass tree grates can also reveal their true strength in actual use. High quality fiberglass tree grates have a slightly dull color after a few years of use, and the entire board is intact without obvious damage. Poor quality fiberglass tree grates cannot withstand practical inspection, and after a few years of use, they will show obvious damage such as corrosion, fracture, and pores. The board is not so flat, and the color degradation is severe, resulting in overall aging, Generally, fiberglass tree grates need to be used for twenty years, but after two years, low-quality fiberglass tree grates will experience overall aging, resulting in huge losses.
