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Fiberglass tree grates
Description: Fiberglass tree grates are extremely important in today's society, not only for beautifying the environment, but also for protecting tree
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Fiberglass tree grates are extremely important in today's society, not only for beautifying the environment, but also for protecting trees
Molded grating | fiberglass grating | fiberglass molded grating
1、 Overview of fiberglass molded grating:
Fiberglass reinforced plastic (abbreviated as FRP) molded grille is a plate-shaped material with a certain porosity made by special processes on customized molds using unsaturated polyester resin (including meta benzene, ortho benzene, vinyl, phenolic, bisphenol A, etc.) as the matrix and glass fiber rovings (medium alkali or alkali free) as the skeleton. It has the characteristics of bidirectional parallel movement in the longitudinal and transverse directions, thus having higher strength and better integrity.
Fiberglass grating is made by interweaving glass fibers and casting resin for overall molding
1. The interlaced weaving of glass fibers and the thorough infiltration of resin make the grille resistant to corrosion to the greatest extent possible.
2. The overall structure of the grille distributes the load evenly, which helps to ensure uniform force distribution during the installation of the grille and its supporting structure.
3. The glossy surface and italicized grille surface give the grille a self-cleaning effect.
4. The concave surface of the grille gives it anti slip performance, and the anti slip effect is better on the sand surface.
Fiberglass grating is corrosion-resistant, but different types of resins have varying levels of corrosion resistance. There are various specifications of standard plates for molded grilles, and different specifications of standard plates have different load-bearing capacities. In engineering design or construction selection, it is necessary to choose the corresponding resin type, grid specifications, thickness, and surface type based on environmental, load, and usage requirements.
There are three commonly used resin types for molded fiberglass grating: ortho benzene type, meta benzene type, and vinyl type.
Its price is directly proportional to its corrosion resistance, so the most economical resin type should be selected based on the corrosive medium used in the environment, performance introduction, and corrosion resistance table A. Ortho benzene type: It has ordinary corrosion resistance, can withstand atmospheric aging, seawater corrosion, etc., and can be used for a long time at a temperature of -50~60 ℃
B. Benzene type (municipal use): has excellent corrosion resistance and can withstand environments with moderate concentrations of inorganic acids, bases, and various salts. Long term use temperature is -50~90 ℃. Ethylene type (chemical use): has excellent corrosion resistance and can withstand harsh corrosive environments such as acid, alkali, salt, and solvents. Long term use temperature is -50~110 ℃
Specification Table for Molded Grilles
Model, overall board size, thickness, unit weight, overall board weight
MG-1” 3.66m*1.225m 25mm 12kg/m2 53.58kg
MG-1” 3.66m*1.225m 30mm 18.5kg/m2 82.61kg
MG-1.5” 3.66m*1.225m 38mm 18kg/m2 80.37kg
MG-1.5” 3.66m*1.225m 43mm 25kg/m2 111.63kg
2、 Performance of fiberglass molded grating products:
1. Lightweight and High Strength:
Fiberglass molded grating is a composite of resin and fiberglass, with a lower density. Compared with steel grating, the density of fiberglass grating is only 1/4 of steel and 2/3 of aluminum, while its strength is 10 times that of rigid polyvinyl chloride. Its absolute strength exceeds that of aluminum and reaches the level of ordinary steel. Its light weight can greatly reduce the foundation support and lower the material cost of the project. Its cutting and installation are simple, without the need for hot work or large lifting equipment, requiring only a small amount of manual labor and electric tools, greatly reducing installation costs.
2. Strong corrosion resistance:
High quality fiberglass molded grating is resistant to corrosion from various gas and liquid media such as acid, alkali, organic solvents, and salts, and has unparalleled advantages in the field of anti-corrosion. It is different from traditional metal grilles in that it does not undergo electrochemical corrosion and rust under the action of chemical media, which will not damage the structure of the material. It does not require regular or irregular inspection and maintenance. It is also different from materials such as wood that may undergo decay, mold, and other phenomena. It is an upgraded product of traditional materials such as iron, wood, and cement. According to the requirements of actual usage scenarios, it is economically feasible to choose resins such as ortho -, meta -, and vinyl based as matrix materials.
3. Strong flame retardancy:
The oxygen index (tested according to GB 8924) of the general fiberglass molded grille is above 32, and the flame propagation rate (tested according to ASTM E-84) is flame retardant level one; The flame propagation rate of high flame retardant ethylene based grille reaches below 10 and is recognized by the American Bureau of Shipping (ABS). Our company's specially designed formula can meet the fire prevention requirements of the project, thereby ensuring safety.
4. Anti slip:
Fiberglass molded grating has anti slip function. The fiberglass grating formed by molding has two types: naturally formed anti slip concave surface and anti slip sand surface. The anti slip sand surface also has two types: integrated sand laying in the mold and re processed sand laying through adhesive after demolding. Both types of sand laying surfaces provide superior anti slip function, and the sand layer is not easy to peel off, making them durable. According to relevant information from abroad, accidents caused by slipping rank second in accidents, and slipping has become the main cause of accidents in many different factories, resulting in huge economic losses. The use of fiberglass grating makes walking safer and more comfortable, greatly reducing accidents caused by personnel slipping.
5. Anti impact and anti fatigue:
Fiberglass molded grating has high impact resistance and allows repeated bending without permanent deformation, while metal grating retains permanent deformation after impact and needs to be repaired. Fiberglass grating has moderate elasticity, which makes personnel who work on it for a long time feel comfortable, reduces the sense of urgency on their legs and back, reduces the occurrence of accidents, and is conducive to improving production efficiency.
6. Aging resistance: The fiberglass molded grille is made of high-quality resin and fiberglass system, ensuring a service life of over 20 years for the product. According to the aging performance research and testing of fiberglass reinforced plastic products by the National Research Institute, the results show that the strength of fiberglass reinforced resin products treated with specialized fiberglass infiltration can still be retained at over 85% after 20 years of atmospheric exposure.
7. Beautiful and easy to maintain:
Fiberglass molded grating is made by blending colorants into all resins. It has a bright color, is not easy to fade, does not require paint, and is not limited to the surface like paint. The smooth surface and inclined inner surface filled with resin make the grating self-cleaning. Even if there is dirt, it can be easily washed away with clean water or detergent, making the grating surface as smooth as new.
8. Safety: Fiberglass molded grating has excellent electrical insulation and no breakdown or arcing under 10KV voltage. It is used in areas with conductive hazards such as work platforms, floors, fences, etc., reducing the harm to workers caused by electric shock in conductive areas and around switchgear; Has non electromagnetic properties and can be used on devices that are sensitive to magnetism; No electric sparks, using fiberglass grating avoids the danger of explosion and fire caused by tools falling on the metal grating in flammable and explosive places.
9. Has good comprehensive economic benefits: the manufacturing cost of fiberglass molded grating is 1.4-1.8 times that of steel grating, the installation cost is only 20-40% of carbon steel, and the maintenance cost of fiberglass grating is almost zero. However, steel grating needs to be maintained every year, and the accumulated maintenance cost greatly exceeds the total cost of fiberglass grating. Although the initial investment cost of fiberglass grating is slightly higher than that of steel grating, the overall economic benefits are 4-5 times that of steel grating, which is one of the main reasons for the widespread use of fiberglass grating abroad.
Application of molded fiberglass grating:
Power plant: chemical water workshop trench cover plate, wastewater tank, etc
Metal surface treatment: acid washing places, replacing wooden floors around machines, around highly corrosive containers, electroplating line walkways, double-layer flooring
Marine food processing plants: harsh environments such as slippery surfaces and on ships
Transportation industry: platforms, ship decks, walkways, military minesweepers, stair treads
Beverage industry: stair treads, replacement of expensive stainless steel, load-bearing flooring
Pulp and processing plants: stair treads and floor slabs, floor walkways, places with high humidity
Electronics industry: gutter cover, acid washing workshop, anti-static (anti-static grid) and high cleanliness workshop
Water treatment: maintenance walkways, sewer covers, large containers, washers, trash racks, flow channels, biochemical water treatment tank hangers, ventilation windows, stairs, cooling tower operation platform paving
Chemical plant: stair treads, operating platforms, guardrails, double-layer flooring, trench covers, filter grilles
Petroleum Industry: Offshore Oil Platforms
Textile factory: Replace metal grilles, wooden platforms, and cover cement floors, bleaching and dyeing tanks, floors, and areas near this valve
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