1. Huizhou Weitong Intelligent Technology Co., Ltd.
Main products: electronic products, electronic components, electromagnets, solenoid valves, magnetic heads, modules PCBA-like, SMT, DIP production and processing.
Address: No. 7, Huifeng 7th Road, Zhongkai High-tech Zone, Huizhou, Guangdong, China.
2. Anhua County Guangyong Electric Power Technology Co., Ltd.
Main products: Main products: electromagnets, solenoid valves, electromechanical products, Processing, production, sales and installation of mechanical equipment, power tools, Wujijiaodian and rubber products.
Address: Pingkou Town.
3. Xinjiang Xinyuan Machinery and Electrical Manufacturing General Factory, Tai’an Xinyuan Machinery Processing Factory
Main products: mechanical and electrical product processing, steel doors and windows, flanges Agricultural machinery accessories, electromagnet production.
Address: South end of Taiwen Road.
4. Shenzhen Boya Electromagnetic Technology Co., Ltd.
Main products: electromagnets, solenoid valves, solenoid coils, push-pull electromagnets, round Tube electromagnet, suction cup electromagnet, holding electromagnet.
Address: Penglianfa Industrial Park Factory, Dawo Village, Longtian Community, Longtian Street, Pingshan District, Shenzhen City.
5. Shenzhen Luohai Technology Co., Ltd.
Main products: electromagnets and solenoids.
Address: Minle Industrial Park, Minzhi Street Office, Baoan District, Shenzhen City.
What is the wind speed of wind turbine braking?
In recent years, NdFeB magnets, as a rising industry of energy conservation and environmental protection, have been widely used in information technology. In fields such as technology, automobiles, nuclear magnetic resonance, wind power and motors, the compound growth rate is expected to be around 20% in the next 3-5 years. Because China has obvious resource, cost and market advantages, the world's NdFeB industry is moving to China. In 2005, China's NdFeB production accounted for more than 70% of global production.
NdFeB magnets are divided into two types: sintered NdFeB and bonded NdFeB.
Emergency bonus points! ! About the speed of magnetic steel, come in and get points...
The braking wind speed generally has only two aspects, one is the safe wind speed, and the other is the wind speed that reaches magnetic saturation and cannot generate electricity.
Safe wind speed is a structural characteristic of the fan. When the wind speed is high and the vibration is severe, it will cause damage.
The wind speed without generating electricity is the nominal cut-out wind speed. Because the rotation speed is fast, a large amount of heat will be generated under the action of magnetism, which in turn affects the performance of the magnets. In addition, the generated current is large, which acts inversely on the magnets, thus achieving a balance, unable to generate electricity.
What is NdFeB?
If it is:
1. NdFeB, 70,000/ton
2. Samarium Cobalt, 230,000/ ton
3. Alnico, 100,000/ton
It’s quite valuable!
These are prices estimated based on the current raw material prices, which may be different from the actual situation. They are for reference only.
The piece of iron you got can only be recycled and reused. , it can be sold to recycling companies or small magnetic steel factories. In short, it will be discounted. You can estimate it at 30% off.
Another possibility is that it is ferrite, which is our common magnet. The broken cross section is black. The main component is iron, so it is not valuable.
Good luck!
NdFeB is a tetragonal crystal composed of neodymium, iron, and boron (Nd2Fe14B).
In 1982, Masato Sagawa of Sumitomo Special Metals discovered neodymium magnets. The magnetic energy product (BHmax) of this magnet is larger than that of the samarium cobalt magnet, and it was the substance with the largest magnetic energy product in the world at that time. Later, Sumitomo Special Metals successfully developed the powder metallurgy method, and General Motors successfully developed the rotary spray smelting method to prepare NdFeB magnets.
This kind of magnet is a permanent magnet that is second only to the absolute zero holmium magnet in magnetism today, and it is also the most commonly used rare earth magnet. NdFeB magnets are widely used in electronic products, such as hard drives, mobile phones, headphones, and battery-powered tools.
Applications of NdFeB:
Sintered NdFeB permanent magnet materials have excellent magnetic properties and are widely used in electronics, motors, medical equipment, toys, packaging, hardware machinery, Aerospace and other fields. More common are permanent magnet motors, speakers, magnetic separators, computer disk drives, magnetic resonance imaging equipment and instruments.
The non-coating treatment of nanometer (Royce3010) chelate film can meet the requirements of 20-30 years of use in marine climate conditions, and can be widely used in sea-based wind power generation. The surface adhesion force is above 20Mpa, and can be widely used in permanent magnet high-speed motors. , special motors, electric vehicle motors, UHV, high-voltage DC power supply systems, fast charging systems, aerospace and military industries and other fields.
Reference for the above content:Baidu Encyclopedia - NdFeB