Railway vehicle Use high-strength weathering steel and expand the use of cold-formed steel. According to foreign data, there are 67 types of cold-formed steel used in railway vehicles, and the amount of trucks per section is 4.7 tons. It accounts for 20% of the weight of the car. The number of varieties used in China is 18-20, and the amount of each car is 1.2 tons, accounting for 5.2% of the weight of the car. Each vehicle manufacturer should maximize the use of cold-formed steel in the design, and give full play to the characteristics of light-formed, thin-walled and high-efficiency cold-formed steel. Transmission tower Focus on the use of cold-formed steel instead of traditional hot-rolled angle steel to improve the overall performance of the tower and reduce costs. In the high-voltage long-distance transmission tower, high-strength and anti-corrosion structural steel pipes have been tested in Dalian, Guangzhou, Wuxi, Shanghai and other places, and will soon be held for promotion and application. The triangular tower structure made of cold-formed steel for the communication tower is also under development. Sheet pile The application of steel sheet piles is very common in foreign countries and is mainly used for rivers and seaside berms, building foundations and trench construction. However, China has neither product standards nor construction specifications, and it is not possible to apply cold-formed steel. At present, hot-rolled channel steel and I-beam are used instead. In the next step, the user industry will prepare construction specifications to fill the gap in the Chinese steel sheet pile market. Mechanically produced cold-formed steel has great market potential in the machinery manufacturing industry, especially in the automotive industry, but there are not many varieties developed in China, such as: car panels, bus keels, car doors and windows, drive shafts, exhaust Pipes, shock absorbers, truck girders, etc., as well as bumpers, various bends on cars, have not used cold-formed steel. Steel structure Steel structure is the largest user of cold-formed steel, its application range is the load-bearing skeleton of the building, and the retaining plate Steel section drawings and roof trusses, single components, such as: trusses, steel frames, wall frames, support platforms, stairs, keels, doors and windows. Cold-formed steel is widely used in foreign construction industry because it is a light-weight thin-walled steel with excellent performance such as light weight and high strength. It is also a new and efficient material that is highly promoted by the state. In developed countries, cold-formed steel for steel structure construction accounts for 50%~70% of the total number of cold-formed steel. Cold-formed steel is mainly used in three aspects: the column and the single-member And retaining panels. Skeleton column The load-bearing structural steel pipe is the best column material for steel structure, and its varieties include round pipes: φ21.3-610mm, t=1.2-1.6mm, and 82 standard specifications. Square tube: 20×20-500×500mm, t=1.2-16mm, 101 standard specifications. Rectangular tube: 30×20-600×400mm, t=1.5-16mm, 170 standard specifications. According to the national standard, there are 353 column specifications. In 2002, the amount of steel used was 350,000 tons, and in 2005 it will reach 840,000 tons. Single-piece components, purlins, roof trusses, etc. The channel steel (including inner crimping channel steel, outer crimping channel steel, and unequal edge channel steel) has a specification of 20×10-400×50mm, t=1.5-6mm, and 88 standard specifications. Angle steel (including unequal angle steel, inner rolled steel) specifications are 20 × 20-150 × 75mm, t = 1.2-6mm, standard specifications 45. The specifications of I-beam (including inner crimping and asymmetric I-beam) are 80×40-250×75, t=2-5mm, and 23 standard specifications. According to the national standard, cold-formed steel is used for 173 specifications of open-ended steel for steel structures. In 2002, the amount of steel used was 440,000 tons, and in 2005 it will reach 1.05 million tons. Shelter panels: profiled panels, sandwich panels, composite panels, tile panels, curved panels, etc. Width B=400-1000mm (non-standard width up to 1250mm), t=0.5-23mm, height H=12-75mm (non-standard height up to 145mm), standard specification 129. In 2002, the amount of steel used was 180,000 tons, and in 2005 it will reach 420,000 tons. The total number of cold-formed steels used for steel structures: 970,000 tons in 2002 and 2.31 million tons in 2005, accounting for 32% of the total cold-formed steel.
Now that you know why having the best LED Hydroponic Light is the most effective way of growing plants indoors, it is important to know what exactly you should be looking for in a model before purchasing it. Even though LED Grow Lights overall consume less power, provide more useful light, and give off less heat, there are still poor models that wouldn't give you everything that you are looking for in a set up. By taking a look at a few things, though, you'll be capable of having the best harvests ever and making sure you are saving money and able to truly enjoy the fruits of your labor.
LED Grow tube light uses the new light spectrum optimized horticulture SMD LEDs for higher yields and lower operating costs compared to standard horticultural T8 and T5 fluorescent light fixtures.Ideal lighting for Micro greens, lettuce and seedlings, the low profile light tube allows for a great utilization of growing space while reducing the cost and maintenance of LED drivers.
How to Select the Best Grow Light for your Greenhouse?
Latest Diamond Version LED Grow Light for plants,using effective full spectrum 360-870nm sunlight spectrum for plants,largely accelerate the plant growth.Compare with the previous led grow lights,Diamond LED Grow Light use high par value and high lumen ligthing for the plant growth.Solid lamp body can last for long time.It can be used to enhance the growth of different plants (medical plants, vegetables, herbs and flowers ).Widely used in hydroponic,greenhouse, indoor garden, horticulture, aeroponics.It is suitable for all plants growth.
Usage Instruction: Led Hydroponics Light,Led Dual Band Light,Hydroponics Dual Band Light,Hydroponic Led Grow Light Shenzhen Phlizon Technology Co.,Ltd. , https://www.szledaquariumgrowlight.com
The plant needs light to thrive cause the light is essental for photosynthesis.without it,plants can not make food.but light can also be too intense,too hot or last too long for growing healthy plants.plant growth accelerates with abundant light because more of the plant`s leaves have exposure,which means more photosynthesis.in the winter,days are not long enough,but many plants still need 12 hours or more of light per day.
Now,adding led grow lights to your greenhouse is an nice choice if you live in the north, and can not get enough daylight in winter.you might be take HID into consideration,cause it has high output and cover a wide area.but now,we providing you some dfferent.the newest type of grow lights use LED technology.
Provides Maximum Light Density and optimizing spectrum(410nm-740nm,white)
as we know that the plants need more light from the blue side of the spectrum during their seedling stage and when developing foliage and require light from the orange to red side of the spectrum while inblooming and fruiting phases. We adopting lastest intergrated COB technology, white , more red and blue PAR(410-740nm) per Watt than any other lighting fixture for the best color uniformity.
Dual Veg and Bloom for plant growth and bloom
the Led grow lights feature selectable VEG and BLOOM light spectrums to deliver maximum performance from seeding through the flower stage and finally harvest.
Increase yields and potency
using high quality lense that hyper-focus the lights on your canopy.the photons are beamed directly to the plants.this gives growers the ability to get greatest possible crop yield.
Reduce your costs with energy efficiency
energy-efficient cannabis grow lights cost between 40%-60% less to operate compared to HID lam year.
Led grow light also eliminate the needs for ballasts and reflectors while they minimize the cooling systems,accelerating your payback.you will see the electrical bills trimmed by approximately half,year after year.
Installs and operates simply
the input voltage is AC100V-240V,fit for the world standard,built-in power supply.do not need other equipment,just access to the Plug,the lamp will be work smoothly. The led grow lighting is small size,just few inches and easy to install.it is the good option for some greenhouse.
Long lifespan
using built-in quiet fans and the shutter in the wind,induced draftfrom all sides.runs with quiet. Useadvanced isolation power supply and soft start protection technology, to prevent the high voltage when turn on the light from damagingthe lamp body.
Extremely bright,do not look directly at the LED grow light when the light is working.
Indoor use only,not water-proof.no extra ballast is needed.
This light includes IR(infrared)LEDs which look dim/invisible,they are not faulty LEDs.
Timer controls both channels on/off together.cannot turn VEG and BLOOM channels on/off separately.
Cold-formed steel application field