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The white cover of street lamps is generally made of polycarbonate (PC) material.
Polycarbonate is a high-performance engineering plastic with excellent physical properties and chemical stability. It has the characteristics of high strength, high toughness, heat resistance, weather resistance and corrosion resistance, so it is widely used in various fields, including electronics, automotive, construction and lighting, etc.
There are several reasons to choose polycarbonate as the material for the white cover of street lights:
1.Good light transmittance: Polycarbonate has good light transmittance, which can make the light of the street lamp more evenly emitted and improve the lighting effect.
2.Strong weather resistance: Polycarbonate has good weather resistance, can resist the erosion of environmental factors such as ultraviolet rays, high temperature and humidity, and keeps the appearance and performance of the white cover stable.
3.Good impact resistance: Polycarbonate has high impact strength, can resist external shock and vibration, and reduce the damage and deformation of the white cover.
4.Lightweight: Polycarbonate is a relatively lightweight material, and the use of polycarbonate white covers can reduce the overall weight of street lamps and facilitate installation and maintenance.
5.Easy processing: Polycarbonate has good plasticity and processability, and complex shapes of white covers can be made through injection molding and other processes to meet the needs of different street lamp designs.
In short, polycarbonate, as a high-quality engineering plastic, has a variety of advantages and is suitable for making white covers for street lights. It is able to improve the illumination effect of street lights, and at the same time has good weather resistance and impact resistance, which can maintain a long service life.
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Some are glass, some are acrylic.
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Street lamp pole one.
Generally, they are steel coil rods, welded and then hot-dip galvanized and sprayed, and skeleton sculptures are generally iron skeletons, which are also galvanized and sprayed, and some are stainless steel.
1. The stainless steel lamp pole is treated with hot-dip galvanized surface, and the product life of hot-dip galvanized products that meet international standards can reach 15 years. Most of them are used in courtyards, communities, parks and other places.
2. The surface of the iron lamp pole is sprayed, painted or powdered, and the life span is 3 5 years. In general, there are many iron light poles used in road lighting.
3. The aluminum alloy light pole is made of high-strength aluminum alloy, which not only humanizes the protection of personnel safety, but also has high strength, does not require any surface treatment, and has more than 50 years of corrosion resistance, and is very beautiful. It looks more upscale.
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The material of the light pole is generally Q235 steel, and there are some special light poles that use Q345 or Q355 steel, and some small garden lights and lawn lights are made of stainless steel 201 or 304 (higher cost).
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Generally, the steel plate is coiled and formed, or it is welded with ready-made steel pipes. There are also stainless steel and aluminum alloys.
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The steel plate is cut and coiled into a taper rod, and then welded seamlessly. The flower branch shape is generally bent and welded with an equal-diameter steel pipe, and then a sleeve is added to the main rod.
Of course, if you want the lamp pole not to rust, you can also carry out the overall hot-dip galvanizing treatment.
If the anti-rust effect is poor, it can be made with galvanized sheet and galvanized pipe.
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1. Cement street lamp pole.
Cement street lamp poles are attached to urban power poles or cement poles are erected separately, because they are bulky, the transportation cost is large, and it is more dangerous, and now the market has gradually eliminated this kind of street lamp poles.
2. Iron street lamp poles.
Iron street light pole, also known as high-quality Q235 steel light pole. It is made of high-quality Q235 steel rolled, hot-dip galvanized and sprayed, which can be rusted for 30 years and is very hard. This is the most common and most used street light pole in the street light market.
3. Fiberglass street lamp pole.
FRP lamp pole is an inorganic non-metallic material with excellent performance, with a wide variety, the advantages are good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but the disadvantage is brittleness and poor wear resistance. So, not a lot is used in the market.
4. Aluminum alloy street lamp pole.
Aluminum alloy street lamp poles are made of high-strength aluminum alloy, which not only protects the safety of personnel humanely, but also has high strength, does not require any surface treatment, and has more than 50 years of corrosion resistance, and is very beautiful. It looks more upscale. Aluminum alloy has better physical and mechanical properties than pure aluminum
Easy to process, high durability, wide range of application, good decorative effect, rich colors and so on. Most of these street light poles are exported to overseas, especially in developed countries.
5. Stainless steel street lamp pole.
Stainless steel poles are the best in steel due to their chemical and galvanic resistance, second only to titanium alloys. The way adopted in China is to carry out hot-dip galvanizing surface treatment, and the product life of hot-dip galvanizing in line with international standards can reach 15 years. Otherwise, it is far from reaching.
Most of them are used in courtyards, communities, parks and other places. Heat-resistant, high-temperature, low-temperature and even ultra-low-temperature resistant.
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The first thing to look at is ordinary.
Street lights are also solar-powered street lights.
1. Ordinary street light sources are generally sodium lamps, and solar street light sources can also be LED, but this kind of heat dissipation is not very good;
2. There are many kinds of materials for light poles, such as cold-dip galvanizing, hot-dip galvanizing, and steel. However, hot-dip galvanizing is most suitable for solar street lights;
3. Solar street lamps also need special solar controllers and batteries;
4. Solar panels installed by solar street lamps and brackets for placing panels;
5. Finally, there is the lamp head, and there are many materials for the lamp head, aluminum.
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Of course, it is made of steel, the irradiation range is about 20 in diameter, and the service life of the bulb is 10 years.
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Generally, high-pressure sodium lamps are used, mainly to prevent rain.
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The lampshade material depends on the type of light emitted by the luminaire. Ordinary high-pressure gas discharge lamps (high-pressure sodium lamps, metal halide lamps) due to their high calorific value, generally use tempered glass as the lampshade material, LED street lamps and other generally use resin lampshades, mostly acrylic, and some manufacturers use tempered glass, aiming to improve the light transmittance and oxidation resistance of lamps.
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White lime. White lime. White lime. White lime. White lime. White lime. White lime.
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It's a process, not a material.
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The most commonly used is PVC!It's what we often call plexiglass!
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It seems that all of them are glass now.
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The shades of street lamps are opaque, and some use plating to reflect light to increase brightness!
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Cleaning with toothpaste, or using a green umbrella detergent that vigorously removes oil, should look like a new look.
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Acrylic, also known as plexiglass, chemical name polymethyl methacrylate, English abbreviation PMMA. The first was the German chemist Otto. Rohm and the laboratory made it under the name Plexiglas, which later began commercial operations and registered a trademark under this name.
Later, Europeans named the material acrylic, which is transliterated in Chinese as acrylic, acrylic or acrylic. Ordinary acrylic is transparent, the light transmittance can reach up to 94%, the physical properties are relatively close to hard plastics, not resistant to high temperatures, and the impact resistance is 15-20 times that of ordinary glass. Whether it is easy to fade depends on the quality of the color paste, and has nothing to do with the acrylic itself.
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Polytetrafluoroethylene (polytetrafluoroethene).
There is also a kind of frosted glass. The main doughnut pie is of these two.
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