It is understood that with the explosive growth of China's wind power industry in recent years, the development space for wind power coatings is also expanding. However, there is currently no national standard for wind power coatings in the paint industry in China. Currently, there are only a few standards related to wind turbine blades, wind turbine safety, and wind turbine towers in wind turbines. Zhao Xiaodong said that the part of these standards involving paint is not comprehensive, and unlike the foreign standards, there are provisions on all aspects of anti-corrosion technology. This results in the current domestic paint companies lacking a clear technical reference in researching and developing wind power coatings. Usually, they rely on their own understanding and some requirements provided by manufacturers to formulate corporate standards, and the standards of various companies are uneven, resulting in the emergence of The product quality is not the same.
However, Zhao Xiaodong said that because of the different geographical environment, domestic standards will not completely copy foreign standards. For example, wind power blade coating standards. Because modern large-scale wind blades mainly originate in the Baltic Sea and the countries near the North Sea in Central and North Europe, they are strongly affected by the warm currents of the North Atlantic Ocean. They are mainly characterized by warm and humid temperate maritime monsoon climates. Their wind sources are characterized by high water content, sediment content and dust. The amount is extremely low. Therefore, their blade coating standards use rain erosion as their main detection index. The main wind field in China is located in the impact area of ​​wind and sand, with little rain and drought. The damage of the peripheral system of the wind turbine is mainly caused by the erosion of wind and sand. Therefore, the foreign wind power coating standards are not suitable for China's actual conditions.
The reporter learned that many companies in the industry are waiting for the development of national standards for wind power coatings. Some enterprises believe that national standards should be adapted to local conditions when they are formulated, and fully take into account the environmental differences in the distribution of wind farms in South and North China. For example, the damage to wind turbines in northern wind farms mainly comes from the erosion of sand, and the damage to wind turbines in southern wind farms is mainly the erosion of water vapor. The offshore wind powers come from both seawater corrosion and salt fog and water vapor. Zhao Xiaodong stated that these ideas and suggestions will be taken into account in the development of the national standard. The standard setting working group will make overall plans and ensure that the standards that will be issued at the time will enable the paint companies to have a clear technical reference when developing related products. In order to meet the needs of users of high-quality products, but also regulate and guide the market and promote the healthy and sustainable development of the wind power coating industry.
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfrollershutterdoor.com