SMC insulation board is a plate-shaped product of various colors that is molded from unsaturated polyester glass fiber reinforced sheet molding compound. Is the abbreviation of Sheet molding compound, that is, sheet molding compound. The main raw materials are composed of GF (special yarn), UP (unsaturated resin), low shrinkage additives, MD (filler) and various additives.

SMC insulation board has high mechanical strength, flame retardancy, and leakage resistance, second only to UPM203; arc resistance, dielectric strength and voltage resistance; low water absorption, dimensional stability, and low warpage. SMC insulation board products are mainly used in various insulation partitions of high, medium and low voltage switchgear. The unique performance of SMC composite material solves the shortcomings of wood, steel, and plastic meter boxes that are easy to age, easy to corrode, poor insulation, poor cold resistance, poor flame retardancy, and short life. The excellent performance of glass fiber reinforced plastic meter boxes are absolutely sealed and waterproof. Performance, anti-corrosion performance, anti-theft performance, never need grounding wire, beautiful appearance, safety protection with lock and lead seal, long service life, SMC distribution box/SMC meter box/SMC glass fiber reinforced plastic meter box/SMC meter box It is widely used in the transformation of rural and urban networks.

SMC materials and SMC molded products have excellent electrical insulation properties, mechanical properties, thermal stability, and chemical resistance. Therefore, the application range of SMC products is quite wide, mainly in the following application areas:

Application in the automotive industry

SMC composite materials are widely used in automobile manufacturing, involving all types of cars, passenger cars, trains, tractors, motorcycles, sports vehicles, agricultural vehicles, etc. The main SMC components include the following categories:

1. Suspension parts   front and rear bumpers, dashboard, etc.

2. Body and body parts: Body shell, hard shell roof, floor, door, radiator grille, front end panel, spoiler, luggage compartment cover, sun visor, SMC fender, engine cover, headlight reflector.

3. The lower parts of the engine cover, such as the air conditioner shell, air duct, intake pipe cover, fan guide ring, heater cover, water tank parts, brake system parts, and battery brackets, engine sound insulation panels, etc.

Application in railway vehicles

SMC railway vehicle window frames, toilet components, seats, coffee table countertops, SMC carriage wall panels and SMC roof panels, etc.

Application in electrical industry and communication engineering

The application of SMC products in the electrical industry and communication engineering mainly includes the following parts.

1. Electrical appliance cover: including electrical switch box, SMC electrical wiring box, instrument panel cover, etc.;

2. Electrical components and electrical components: such as SMC insulators, insulating tools, motor end covers, etc.;

Application in the field of wireless communication

Various antennas are widely used in the field of wireless communication. Compared with metal materials, FRP materials have the advantages of light weight, convenient processing, transportation and installation, low price, anti-corrosion, and good elasticity. Therefore, FRP materials are used in the manufacture of many antennas. One of the most noticeable is the various types of fiberglass reflector antennas. The most commonly used reflector antenna is a parabolic antenna, which has excellent directivity and is a high-gain antenna. FRP itself cannot reflect electromagnetic waves. When a metal mesh cloth or a metal film is coated on its surface, it becomes a good reflecting surface. When the glass fiber reinforced plastic is formed on a well-shaped mold, a high-precision reflective surface can be easily manufactured, which has high gain and low cost. For the convenience of manufacturing and transportation, large-scale FRP reflectors are often decomposed into many smaller units, which are formed in a single piece and then assembled in the field; for large-scale FRP reflectors, they can often be made into a sandwich structure, while small FRP reflectors generally do not need to be clamped. The core structure can be directly formed on the premise of pre-installed reinforcing ribs on the back to meet the rigidity requirements.

At present, the main molding methods of FRP reflectors are hand lay-up and SMC molding. Due to the superior performance of SMC material and SMC molding process, it is more advanced than hand lay-up, but its investment is large, and SMC products are more suitable for mass production. For example, the domestic satellite TV receiving antenna in the small reflector antenna has great market potential, and it has been mass-produced and applied in the United States, Japan, South Korea, Taiwan, and Hong Kong.

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