Magnesium die casting is to melt the magnesium castings and fill the castings under high pressure and high speed, and crystallizes and solidifies into castings under high pressure. The finished products have low density, high strength, and large capacity to withstand impact loads. Can be used as automotive, aerospace and other high-end and new machinery parts aluminum alloy die-casting Aluminum Alloy Die Casting is to melt the aluminum castings in a high-pressure high-speed filling mold, and crystallized in a high-pressure solidification into castings, finished product performance, high precision, toughness High, can be used as precision mechanical parts
Our company is committed to developing the key technology and development trend of new metal manufacturing: the more lightweight SSC / Mg alloy casting; as a professional light alloy Die Casting supplier, we pay more attention to technology accumulation and research development, and put forward the industry innovation trend "magnesium literature", and registered trademarks in China and Germany. Magnesium Zun MEIZUN ", in the automotive industry and the electronics industry, followed by the manufacturing of industrial machinery parts accessories made no small research and development results; the company has about 100 people's design and development team to turn your ideas into products, 101 magnesium alloy semi-solid rheological die-casting, all imported magnesium alloy semi solid die casting machine, supply The largest and most advanced metal forming service
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Magnesium Die Casting,Die Casting,Injection Molding,Metal Plastic Processing Ruizhun Precision Metal Co., Ltd. , http://www.rzjmdiecasting.com
Analysis of Problems Related to Wind Power Generation
Analysis of Problems Related to Wind Power Generation
With the increasing depletion of traditional energy sources and the need for energy conservation and emission reduction, green energy, especially wind energy, has received more and more attention. The development of wind power in China is very fast. In 2007, the newly installed capacity was 3.4 million kW, and the cumulative installed capacity reached 6.40 million kW, which surpassed Denmark as the world’s fifth largest wind power country. The installed capacity was second only to the United States and Spain, and surpassed that of Germany and India. One of the most important wind power markets in the world. In 2008, there were more than 5,130 newly-added wind turbine units outside Taiwan, with an installed capacity of approximately 6.246 million kW.
The blade is the key component of the wind turbine, and its cost accounts for about 20% of the entire wind turbine. There are a large number of blade manufacturers in China. However, most of the blades are produced through joint ventures. The core technologies of the blades are airfoil and materials. Due to lack of research, it is necessary to strengthen research on the leaves. Nowadays, CFD (fluid al fluid dynamics) technology is widely used for the study of blades, which is the computational fluid dynamics technology. The principle is to replace the field of continuous physical quantities on the spatial domain with a set of variable values ​​on a limited series of discrete points. The algebraic equations for the relationship between the field variables at these discrete points are established by certain principles and methods. Then the algebraic equations are solved to obtain the approximate values ​​of the field variables. CFD can be regarded as the fundamental equations of fluids (mass conservation equations, conservation of momentum). The equations and the conservation of energy equations control the numerical simulation of fluids to approximate the flow of fluids. Although wind turbine technology has grown toward large-scale and offshore, the development of small wind turbines is equally important. It can provide sufficient power for individual users and also has sufficient safety. The blade design includes three parts: aerodynamic design, blade structure design and structural design. The aerodynamic design includes: determining the diameter of the wind wheel, the number of blades, the chord length, thickness, torsion distribution of each section of the blade, and the selected airfoil.
Wind power generation has gradually taken shape in western China and provides a certain amount of electricity for the country each year. In wind power areas, wind anemometers are often used to determine wind speed in the region. The timely determination of wind direction wind speed is conducive to understanding the wind speed in different seasons and at different time periods in the region. The wind direction wind speed monitor is mainly used to measure wind-related performance in meteorological detection. Meteorological detection has developed rapidly in recent years. Agriculture has actively promoted and promoted.