Overview edit GRP (referred FRP) grid is a glass fiber as a reinforcing material, unsaturated polyester resin matrix, through special processing complex made of a sheet-like material with a lot of space, glass steel grille can as a structural material for use as a corrosive environment floor, trench cover, platform, ship decks, stairs, plank and so on. Grid through a glass fiber braided, resin cast integrally molded, making a rectangle with a number of regularly distributed, rectangular spaces fiberglass grille plate, with two-way mechanical characteristics of the same sex. It can be widely used in petroleum, chemical industry electronics, electricity, paper, printing and dyeing, electroplating, glass steel grille glass steel grille ocean exploration, sewage treatment and other industries working platforms, equipment platforms, drilling platforms, walkways, etc., is ideal for corrosive environments products, but also for the civil facilities. Due to the presence of corrosive liquids, gases, resulting in metal in these areas of rapid corrosion, although the anti-corrosion layer and other measures taken, but the corrosion member is still very alarming, not only caused severe production environment, and the impact of production safety, sometimes had shutdowns, the use of FRP grid as structural materials in these areas can play a very good effect, it has a long life, low cost, safe, reliable, maintenance-free, as well as nice series of advantages. Has been promoting the use of such products in the United States thirty years, FRP grating production and use of sales have been standardized, serialized, the commercialization, the amount is quite big. In the Gulf region, the reconstruction of the Middle East oil fields, the experts, that the use of FRP grating is the most economical material, which is widely used. FRP grid is also being used in Asia, Singapore and other regions. 2 Features Editor FRP grid characteristics are as follows: a very superior corrosion resistance to acid, alkali resistance, and many organic solvents and salt air, corrosive liquid medium can, in the field of preservation has incomparable superiority. According to the actual use where required, can be economically choose to use O-type, isophthalic type, vinyl type resin matrix material. Lightweight, high strength, and easy to cut, because it is through the installation of resin and glass fiber composite made its smaller density of not more than 2 kg per cubic decimeter, only 1/4 of the steel, aluminum 2/3. Its strength is 10 times rigid PVC, aluminum and absolute intensity exceeds the level of ordinary steel. Its light weight, can greatly reduce the base support, thereby reducing the material cost of the project. Its cutting installation simple, without flare and large lifting equipment, only a small amount of labor and power tools, making installation costs are greatly reduced. Anti-aging theory, life of more than 50 years. Common flame retardant grill flame propagation rate (ASTM E-84) does not exceed 25; the flame propagation rate senior retardant vinyl grill does not exceed 10. Oxygen index of not less than 28 (GB 8924). Security has excellent electrical insulation properties, no breakdown voltage under 10KV; electromagnetic properties, can be used on sensitive magnetic equipment; FRP grating structure also has a special anti-slip, anti-fatigue properties. Color color can be arbitrarily chosen. Color can be customized according to customer requirements, improve the production workplace environment. General FRP grid colors: yellow, black, gray, green, blue, red as well as transparent or translucent and so on. You can use a single use of a color, you can mix be. Strong size can be designed flexible, easy cutting, dimensional stability. 3 Related information editing applications FRP grating FRP Grating FRP Grating (FRP grid) applications: water treatment: maintenance walkways, sewer covers, large containers, cleaning, trash racks, chutes and biological treatment pool linked with, venting, stairs, paving chemical plant cooling tower console: stair tread plate, operating platforms, guardrail, double floor, trench cover, grating oil industry: offshore oil platforms mills: instead of a metal grill wooden platform and covered concrete floor, next to the bleach vat, flooring, and other power plant near this valve: Chemical water workshop trench cover, water tank and other metal surface treatment: pickling place, replace wooden floor around the machine, highly corrosive container around, plating line aisle, double floor of marine food processing plants: creamy surface and other harsh environments, the ship transportation: platform, ship decks, walkways, military minesweeper, stair tread plate beverage industry: stairs step on board to replace expensive stainless steel, There are loads of pulp and factory floor: staircase step on board and floor, floor walkway, where humidity electronics industry: trench cover, pickling workshop, anti-static (static grid) and high cleanliness meat processing plant Factory: corrosive ground, stairs, slippery floors and stairs bench step on board the car wash / beauty shop car: car wash drainage board, parking, car washes trench cover crane: the 3 m or 6 m long crane aisle Others: corrosion-resistant shelves, decorative, square fountain, scaffolding, civil facilities, aquaculture fence and double floors. Platform: Many plants have a large number of operating platforms, the use of glass fiber reinforced plastic grille as the operating platform surfacing materials, corrosion resistance, no paint, no maintenance, long service life, use fifteen years to twenty years. Light weight, compared to steel, reducing weight three-quarters, so no need to use lifting equipment installation, as supported on the device's operating platform is more appropriate. FRP grating openings cut is very convenient to use arc cutting saws can easily openings to meet the requirements of the installation of equipment, and will not cause a change in the mechanical properties of the openings and the grid, but will not cause the grid scatter grid. For the mobile operating platform, the use of lightweight fiberglass grille is even more appropriate. In addition, proper design of the FRP gratings have the right amount of elasticity can reduce the long-term staff above fatigue, improve work efficiency, so it is an ideal material for artificial platform. Walkway: plants (such as chemical plants, steel mills, etc.) tend to have a lot of walkways, some channel devices with the device, some for inspection use, these walkways are generally welded with round, due to corrosion, often every year do anti-corrosion coating. FRP grating produced using these walkways, maintenance treatment, both the walkway to maintain a permanent color pride, but also make the walkway lightweight structures, with a non-slip surface sanding, it is the best choice for the northern snow season outdoor walkway. FRP grating FRP trench cover grille: many chemical plants, smelters electrolysis plant, chemical processing plant plants; electroplating factory, battery factory, machinery factory pickling workshop; pharmaceutical, printing and dyeing, salt and others have a lot of the trench, the trench mostly corrosive liquids, traditional trench helpful angle, flat iron welded grating, cast iron grill, cement cover, etc. These materials resistant to corrosion, as many years, ranging from a few months that is is destroyed, the workshop presents fragmented appearance, the use of FRP grating can be a good solution to corrosion problems, while allowing sewage spilled into the ditch, it is also easy to observe at any time to the trench. Offshore oil platforms: the traditional offshore oil platforms often use steel as a paving material, coupled with bad weather ocean sea erosion caused severe corrosion of these materials, increased insecurity, foreign countries have been successfully used for this bad will FRP grid environment, reduce the three-quarters of the weight of such basic support and other components easier to handle, through rational design, but also to reduce the total cost of the platform. Sewage treatment: sewage treatment, FRP grid can be used as paving material platform of the tower below, can be used as raw water treatment pool linked with cremation can also be used as a maintenance walkway wastewater treatment plant. Staircase: chemical plants, petrochemical plants often have several layers of production equipment and even dozens of layers, to use a lot of stairs, the traditional steel plate welded or soldered round staircase will quickly be destroyed in such corrosive environments, the company provides The stair treads not only solve the corrosion problem, and slip resistant. Fencing: high-pressure plant equipment, large storage tanks in accordance with the requirements of generally takes around a fence. Runlin grid because of insulation, corrosion-resistant, colorful, easy installation and other properties, is an ideal material for these places. In addition, it can also be used in corrosive environments serious chemical factory windows, fences and the like. Empowerment Platform: tank top walkways, platforms tend to be more serious corrosion place, full of rusty, daunting, suffered severe corrosion of platforms, walkways there are often accidents, FRP tank top grille manufacturing platform can be completely to change this situation. Corrosion shelf: a large storage battery storage battery plant shelves, glass steel shelf, can effectively solve the problem of corrosion of traditional shelf intolerance. Glass steel grille glass steel grille double ground: in many corrosive workshop, such as pulp mills refining workshop, electroplating factory electroplating workshop. The traditional method of operation is the operator, finished products, waste, waste water is on the same ground, which is a lot of inconvenience, easy to damage the corrosion ground, with the concept of different entities ground floor is a double grid, ie the top FRP grating composition, the lower building matrix ground, the operator walks job on the grill surface, finished products can be placed on the grill surface, and waste, waste can be discharged to the underlying substrate surface, the job is finished strong Available The sprinkler washing, remove ground heap objects, so that is convenient for workers, but also easy to manage personnel for on-site inspection. Boat deck: boat deck or gangway for material, can greatly reduce the weight of the deck to increase cargo capacity, and to prevent ship-borne medium and seawater intrusion rot. Its excellent diamagnetism is more suitable for use in minesweepers. Note 1, due to the low density, light weight, easy to install fiberglass grille float tube in high water table areas, must be considered to set the town pier or divert storm water runoff and other anti-floating measures. 2, has been installed on the glass steel grille opening tee, repair cracks and other pipeline construction, requirements similar to the plant completely dry conditions during the construction and use of resin and fiber cloth need 7-8 hours of curing, and on-site construction and Repairing generally difficult to meet this requirement. 3, the existing underground pipeline detection equipment to detect metal pipes mainly based, and non-metallic pipes detection equipment is expensive, and therefore can not be detected after FRP grating buried, other subsequent construction units in construction dig easily hurt, damaged pipes. 4, FRP grating UV poor. Surface mounted FRP grid by making a resin-rich surface layer 0.5mm thick and ultraviolet absorber (processing plant), to slow down the aging time. Over run time, the rich resin layer and an ultraviolet absorber will be destroyed, thus affecting their life. FRP grating production process production process there are three types: reciprocating filament winding process, a continuous filament winding process and the centrifugal casting process. Reciprocating filament winding process (of fixed length method): In this process method, dipping tank with rotating mandrel reciprocates, long fiber glass from an oblique angle relative to the mandrel axis auxiliary release, auxiliary angle (ie wind angle) than the control, translational motion dipping tank movement speed and mandrel rotation speed by dipping tank by computerized machine - control circuit. Winding layers gradually increased wall thickness to meet the design so far. After winding is complete, the article substantially cure the resin. After curing, emerge from the glass pipe in mandrel. Continuous filament winding process (of a continuous process): The process is in motion through a tube supplying prepreg roving, chopped fiberglass and resin sand mixture feeding station, the tube is continuously advancing mandrel in steel. Centrifugal casting process (of fixed length method): In this process, with chopped glass fiber reinforcement and sand, feeding fixed bearing on the steel mold, injecting a catalyst in steel end unsaturated resin, so impregnating a reinforcing material, by centrifugal force, displace the fibers and the resin filler in the air, thereby producing a dense nonporous composite material, the inner wall of the tube due to centrifugal force and form a smooth, rich smooth inner surface layer of the resin, pipe curing at higher temperatures. With this method of manufacturing a pipe known as RPMP. Using a shuttle filament winding pipe manufacturer in the world much more than the other two manufacturers of production technology, in part because of the reciprocating filament winding glass pipe manufacturing process has a broader purpose, suitability better. Legends Grille thickness (mm) thickness back ribs (up / down) box size (mm) whole plate size (mm) Weight (kg / m2) opening ratio (%) 13 0 / 5.0 38 × 38 1220 × 3660, 1220 × 4000,1220 × 2440, 915 × 3050,1268 × 4010 0 78 14 0 / 5.0 38 × 38 1220 × 3660,1220 × 4000,1220 × 2440, 915 × 3050,1264 × 4010 5 78 20 0 / 5.0 38 × 38 1220 × 3660,1220 × 4000, 1524 × 4010,997 × 3012 8 65 25 0 / 5.0 38 × 38 1220 × 3660,1226 × 4010,1532 × 4010, 915 × 3050,1524 × 4000,997 × 3012 3 68 30 0 / 5.0 38 × 38 1220 × 3660,1220 × 4010,915 × 3050, 1524 × 4010 6 68 38 0 / 5.0 38 × 38 1220 × 3660,1220 × 4010, 1524 × 4038, 2100 × 4010,998 × 4010,1220 × 2440, 915 × 3050,1532 × 4010,1532 × 3050, 1000 × 4000 5 68 50 5 / 7.5 heavy load 38 × 38 1220 × 4010,1220 × 3660,1230 × 4010, 1220 × 2440, 915 × 30504256605 / 8.5 heavy load 38 × 38 1230 × 4010 4 54 70 0 / 9.0 heavy load 38 × 38 1230 × 4010 8 49 selection method how to choose glass steel grille 1, to determine the need glass steel grating is used What to do, that is, the use of clear objectives. Such as the car wash manufacturer is prepared to buy the grill plate grill plate is used as washing the carrier plate. 2, identified by the use of glass fiber reinforced plastic grille after the board is to determine the grid dimensions and specifications for use of the time. On the grid sheet can probably have some understanding of related presentations by manufacturers, such as washing the floor, you can choose the thickness of 2.5cm or 3.8cm thickness grill plate grill plate. Plating plant, commonly used is 2.5cm thickness of the grid plate. In sewage treatment plants, chemical plants often is 3.8cm thickness of the grid plate. After 3, choose the appropriate thickness of FRP grating, to calculate when the use of a grid sheet size. As the car wash. The size of a washing place mostly 1.220m * 2.440m, and FRP grating dimensions are 1.220 * 3.660, which need to be put into use after cutting. 4. Select the appropriate raw material production to meet the requirements of FRP grating, such as is used in the chemical plant or sewage treatment plant grille plate, you need to choose a higher corrosion resistance of the resin production. Installation FRP grid laid by a tractor or car modified equipment laying, usually artificial laying. Paper ends of each standard fiberglass grating products per roll with orange and blue marker, before you start laying rubber should be selected for the next, to determine the color of each of the mark at one end, to facilitate the construction of paved surfaces without glue wrong. When laying glass steel grille, should maintain its smooth, taut, evenly aligned, you can use the horizontal ruler to make flat glass steel grille with an active tension, Puwan with clean drum roller rolling again. FRP grid is clean and bright, more color. Commonly used fiberglass grille with a self-adhesive and non-self-adhesive two kinds. May have been formed on the base layer with self-adhesive laying directly, without self-adhesive is usually made of stainless steel retaining ring and pin fixation. Common sections are used without the self-adhesive fiberglass grille, fixed materials required are: fixed ①50 × 50 × 0.3mm stainless steel collar, Qiaojiao not be smooth, peripheral should chamfered; ②2 inch nails. When laying glass steel grille with fixed nails or stainless steel clasp, the first end of the fixed ring and pin secured to the underlying structure has been spraying the adhesive layer of asphalt, available hammering nails or nail injection. Then grill longitudinal tension and fixed segments, each of length 2 ~ 5m. Contraction joint spacing can also be segmented, nail position is set in the gap at the seams. Requires vertical and horizontal grid taut glass are in a straight tension. FRP grating longitudinal lap lap, lap width of not less than 20mm, lap width of not less than the transverse 15mm, longitudinal lap should be placed before an asphalt paving direction according to a top post. Steel nails can not be fixed on the glass steel grille, glass steel grille can not be a direct hit with a hammer, nails after the fracture fixation found loose or snap ring, you need to re-fixed. Fiberglass grating fixed laying has been completed, must use rubber roller roller compacted moderately stable, so that the surface of the glass steel grille and firmly bonded the same way. In the actual construction, some construction units employ adhesive layer after spraying oil directly paving fiberglass grille, roller immediately after rolling, it is better, fiberglass grid is not easy to wrinkle. In actual operation, the construction quality is good or bad for the future use of effects FRP grating has a great influence. 4 quality selection of raw materials A. Identification editor. FRP grating raw material used for the resin, fiberglass wire filler calcium in a 1: 1: 1 ratio configuration is made of high quality fiberglass grille of high quality resins: Unsaturated phthalic resin 196, colorless, transparent . Low viscosity, low exotherm, low shrinkage, curing speed, high-speed compatibility, gloss brightness. Produced glass steel grille, smooth, gloss, strength and a certain toughness. If the use of inferior resin will be completely opposite of inferior resin stale, high viscosity, high heat, shrinkage, curing is relatively slow, compatibility is poor, producing more pore glass steel grille, easy to break, the intensity difference good toughness. In FRP grating can enhance grid toughness is fiberglass filaments. Quality fiberglass filaments such as E-type fiberglass yarn strength than steel wire has a certain toughness, chemical stability, weather resistance, almost non-absorbent fire does not burn, he can also be used as a high strength tire cords. Hua County Stone Company fiberglass filaments are laid in accordance with 8-9 layers, so the product Yasumasa intensity. The fiberglass filaments, some manufacturers use a high-wire act as alkali base wire, low high alkaline wire strength, poor water and alkali resistance. FRP grating filler is calcium or aluminum, high-quality filler silty delicate white, flame retardant, fully integrated with the resin, produced by the board beautiful color, large transparency and good toughness. Conversely, poor filling silty rough bleak, no flame, produced by the board no gloss, no more brittle toughness. B. refined contrast. FRP grating quality appearance without obvious cracks, holes less, pure bright colors, transparency, and with a certain toughness big strength, good surface finish and long service life; and the poor quality of glass fiber reinforced plastic grille appearance of cracks, large pores, impurities gloss color is not enough. Its life is shorter. C. Practice is the sole criterion for testing truth, time is the most fair judge. FRP gratings in the actual use of the process will expose his real strength, quality after years of use fiberglass grille color slightly dim, the entire board intact, there is no obvious damage, poor quality fiberglass grille by not live practice test will be used for several years after significant corrosion cracking holes and other damage, the board is not so smooth, the color degradation is serious, the overall aging of the general FRP grating is to use two years, but after two years of poor quality The FRP grid will be the overall aging, and therefore will bring huge losses.