DuPont cooperates with Yingli Green Energy Holdings Co., Ltd. ("NYSE:YGE") (" Yingli Green Energy" or "Yingli"), a global leader in vertically integrated photovoltaic power generation products. The scope of cooperation includes the development of advanced and efficient photovoltaic cell technologies. New component manufacturing process to extend the life of photovoltaic cells and innovative component design and more. Through the mutual cooperation of both parties on technical knowledge, we will accelerate the development and application of solar energy sources, and together solve one of the biggest challenges facing the world: the development of sustainable energy.
“Since it entered the solar industry in 1998, Yingli has achieved leapfrog development from the initial 3MW to the current 1.7GW.†Miao Liansheng, President and CEO of Yingli Green Energy, stated, “Technology innovation, especially through extensive cooperation For example, working with leading material suppliers such as DuPont, is the key to leading us to continue to grow and maintain our leading position in the industry. At the same time, it is also the basis for us to produce cost-effective, high-quality products, which further interprets us to the world. The mission of the people to provide affordable green electricity."
With the cooperation of the two parties, Yingli and DuPont Photovoltaic Solutions (DPVS) have made concrete progress in several cooperative projects such as improving the efficiency of photovoltaic cells, extending the service life of components, and reducing the overall cost of photovoltaic systems, including:
Using DuPontTM Solamet® PV17x technology platform, Yingli applied DuPont's latest shallow diffusion technology in the cell diffusion process to increase the conversion efficiency of photovoltaic cells.
Yingli and DuPont collaborate on the development of special pastes for the Yingli high-efficiency N-type photovoltaic module (Panda), which has now completed the laboratory testing phase, and the battery conversion efficiency can reach over 19%. .
Yingli and DuPont collaborate on the development of backsheet materials and use DuPontTM Tedlar® polyvinyl fluoride film as the key material for Yingli's high-efficiency Panda Series backplanes to further ensure their efficient output for more than 25 years.
“Compared to non-renewable energy, photovoltaic technology is continuously gaining competitive advantage, so how to use PV technology to help achieve optimal performance and reduce total cost will be crucial.†William Feirie, president of DuPont Photovoltaic Solutions Global Business, said "The collaboration through globalization can accelerate technological innovation in the industry. The most important thing is to encourage faster and more extensive use of photovoltaic power. This will undoubtedly greatly help consumers and the environment. We are very happy." Ability to work with component manufacturers such as Yingli, a leading industry player."
Yingli Green Energy
Yingli Green Energy Holdings Co., Ltd. (NYSE: YGE) (product trademark is “Yingli Solarâ€) is a global leading solar energy company and one of the world’s largest vertically integrated photovoltaic power generation product manufacturers. Yingli Green Energy's production line covers the entire photovoltaic industry chain, including polysilicon production, silicon ingot casting, silicon cutting, photovoltaic cell production and photovoltaic module packaging.
DuPont
Founded in 1802, the DuPont Company (NYSE: DD) provides world-class scientific and engineering capabilities to the global market with innovative products, materials and services. DuPont believes that through collaboration with customers, government agencies, non-governmental organizations and thought leaders, we help provide solutions that address a variety of global challenges, including providing healthy food to people around the world, reducing fossil fuels Rely on, and protect life and the environment.
DuPontTM Solamet® Photovoltaic Metallic Slurry and Tedlar® Polyvinylefluoride Film are part of the extensive and continuously expanding product portfolio of DuPont Photovoltaic Solutions (DPVS), a solution that integrates DuPont's worldwide scientific and technological crystallization An extensive and continuously growing product portfolio to meet the rapidly growing photovoltaic industry.
Because of its self forming or tapping the thread matching it, it has high anti loosing ability in combination and can be disassembled. In the small screw, its size, thread type, head type, drilling performance, in the engineering use of high tension, single, unilateral combination features almost unlimited. Self tapping materials can be divided into carbon steel and stainless steel, of which 1022 medium carbon steel is the main material.
1: According to the different head, it can be divided into: round head, flat head (i.e. countersunk head), top stigma, round top wide side head, big round head (i.e. big flat head), hexagon bearing hole head, hexagon bearing hole Huasi head, hexagon bearing hole Huasi head
Round head: it is the most commonly used head shape in the past
Flat head: it can replace the new design of round head and mushroom head. The head is low in diameter, and the peripheral circumference of the head is connected with the high edge of the characteristic, which makes it play a driving role for high-strength torque. It is slightly different from the hole head in head shape
Top column head: the diameter of the standard flat round top column head is smaller than that of the round head, but it is higher due to the groove depth. The smaller diameter increases the pressure acting on a small area, and can be closely combined with the flange and the increased surface layer. As the head is made in the drilling die set to ensure the concentration, they can be successfully applied to the holes in the internal drilling
Dome wide side head: due to the undercutting of the head to restrain and reduce the wear of the wire components, it is most commonly used in electrical appliances and tape recorders, providing an attractive design type for the middle and low head type with its more sufficient bearing surface
Big round head: also known as oval top wide edge head, is a low type, cleverly designed large diameter head. When the combined tolerance of additional function allows, it can be used to cover the metal plate hole with larger diameter. It can also be recommended to use flat head instead
Hexagon socket head: a kind of joint with the height of wrench head and the size of hexagon head. The hexagon is completely cold formed by the reverse hole mold, and there is an obvious depression at the top of the head
Hexagon socket head: such as the standard hexagon socket head, but at the same time, there is a socket face on the base of the head to protect the assembly from damage of the wrench. Sometimes the function of things is far more important than appearance
Hexagon head: This is a standard type of torque acting on the hexagon head. It has the feature of trimming sharp corners close to the tolerance range. It can be recommended for general commercial use. It can also be applied to various standard patterns and various thread diameters. Because of its necessary second process, it is more expensive than general hexagon socket
2: According to the groove type, there are four types: slotted head type (also called slotting), cross slotted head type, cross slotted head type, cross slotted compound slotted head type and meter slotted head type
3: According to the standard can be divided into: GB, DIN, ANSI, BS
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