Pressure Die castings are made from alloy tool steels. They have at least two sections to permit the removal of castings, the fixed die, or cover, half and the ejector die half. Some dies also have parts, such as removable slides and cores, to produce holes, threads and other desired shapes in the casting. Openings in the die allow the addition of die casting coolant and lubricant. Dies are either air- or water-cooled. The cooling of the die provides for quick cycling and is one of the factors in the high rate of production. It also gives a fine grain structure and superior strength and finish to the metal castings. The molds used by die casting manufacturers will perform up to 5 million shots in its lifetime.

The services provided by die casting manufacturers have many advantages over other processes. Die casting is efficient and economical, offering a wide range of durable shapes and components. Little or no machining is required after die castings are made because the process provides very close tolerances for even complex part shapes. Metal castings can be easily plated or finished. Die castings are dimensionally stable and heat resistant. These lightweight parts, even while having thin walls, retain the strength of an alloy because they do not consist of separate parts welded together.

“This project appears to be short-sighted and politically motivated. “Putting turbines so close to such a critical bat roost will wipe out these bats and is totally unacceptable.”

Although the slit-faced bat is not listed as a threatened species, White said the Bluff military base colony was one of the largest maternity roosts in the wind generatos country for the species, and the turbines posed a major threat.

Durban was also an important foraging area for the large-eared free-tailed bat (Otomops martienssen), a more vulnerable bat species restricted to the coast between Ballito and Port Shepstone.

Dhrochand said his department had contacted the national Environmental Affairs Department and was advised that a full EIA was not needed.

However, as responsible government, we decided to engage all relevant stakeholders and we will have an environmental management plan to deal with and mitigate potential impacts.”

He acknowledged that the department faced a tight schedule if it hoped to get the wind  turbines running before the conference.

The concrete bases, which have yet to be laid, require about 27 days to cure.

Obviously we would like to have them up before COP 17, but if there are serious issues, we will have to re-examine this… at the end of the day it might be a case of having just one.

He said Bremen had donated four wind  turbines  generator to Durban as part of a scheme to share experience in renewable energy technologies.

Hummer wind turbines

“This project appears to be short-sighted and politically motivated. “Putting turbines so close to such a critical bat roost will wipe out these bats and is totally unacceptable.”

Although the slit-faced bat is not listed as a threatened species, White said the Bluff military base colony was one of the largest maternity roosts in the wind generatos country for the species, and the turbines posed a major threat.

Durban was also an important foraging area for the large-eared free-tailed bat (Otomops martienssen), a more vulnerable bat species restricted to the coast between Ballito and Port Shepstone.

Dhrochand said his department had contacted the national Environmental Affairs Department and was advised that a full EIA was not needed.

However, as responsible government, we decided to engage all relevant stakeholders and we will have an environmental management plan to deal with and mitigate potential impacts.”

He acknowledged that the department faced a tight schedule if it hoped to get the wind  turbines running before the conference.

The concrete bases, which have yet to be laid, require about 27 days to cure.

Obviously we would like to have them up before COP 17, but if there are serious issues, we will have to re-examine this… at the end of the day it might be a case of having just one.

He said Bremen had donated four wind  turbines  generator to Durban as part of a scheme to share experience in renewable energy technologies.

Hummer wind turbines

“This project appears to be short-sighted and politically motivated. “Putting turbines so close to such a critical bat roost will wipe out these bats and is totally unacceptable.”

Although the slit-faced bat is not listed as a threatened species, White said the Bluff military base colony was one of the largest maternity roosts in the wind generatos country for the species, and the turbines posed a major threat.

Durban was also an important foraging area for the large-eared free-tailed bat (Otomops martienssen), a more vulnerable bat species restricted to the coast between Ballito and Port Shepstone.

Dhrochand said his department had contacted the national Environmental Affairs Department and was advised that a full EIA was not needed.

However, as responsible government, we decided to engage all relevant stakeholders and we will have an environmental management plan to deal with and mitigate potential impacts.”

He acknowledged that the department faced a tight schedule if it hoped to get the wind  turbines running before the conference.

The concrete bases, which have yet to be laid, require about 27 days to cure.

Obviously we would like to have them up before COP 17, but if there are serious issues, we will have to re-examine this… at the end of the day it might be a case of having just one.

He said Bremen had donated four wind  turbines  generator to Durban as part of a scheme to share experience in renewable energy technologies.

Hummer wind turbines

Hoi An city’s first wind farm erected a small wind farm yesterday successfullycompleted the first wind turbine. Expected before the end of 6 wind turbines will bethe first to enable the grid, which marks the city in the development and utilization ofwind energy to achieve breakthrough. It is reported that plans to build a small wind  turbines farm 11 units, generating 67 million kwh expected.

Drove six hours from here, you can reach the world’s largest wind turbines manufacturers - Vestas of Denmark (Vestas). Germany’s Siemens (Siemens) is not far from here. According to wind energy industry consulting firm BTM data, Siemens is the world’s ninth-largest wind turbine suppliers. In addition, a few hours from here take the plane, you can reach the world’s eighth largest wind turbines supplier - Spain, Canada and the U.S. Sa companies (Gamesa).

European Wind Energy Association (EWEA) said that the European wind generator manufacturers account for 89% of the total European market, 32 percent of the U.S. market and 37 percent of the global market.

However, even in Europe the European headquarters of the local fan Zhu Qiang, parties new force on the global wind energy industry - China - is also increasing concern.

Five years ago, the world’s top ten small wind turbine manufacturers in the ranks of Chinese companies also see a figure. Today, Chinese companies accounted for four seats in which: Sinovel (Sinovel, the second largest wind turbine maker, second only to Vestas), Goldwind (Goldwind), Dongfang Electric (Dongfang) and United Power ( United Power).

Global Wind Energy Council (GWEC) involved in writing a report that China is 1 unit per hour speed to create new fans. The report estimates that by 2020, China’s wind power capacity could reach the Three Gorges Dam power generation capacity of 13 times.

China is working to resolve the huge domestic demand for energy and pollution problems, the total installed capacity of windmill power last year on the first time in more than the United States.

However, due to China’s power system is difficult to digest the thousands of new fans, the Chinese government has slowed the pace of construction of new wind farms. In this context, the fan out of the price lower than 30% of Western opponents of the Chinese wind turbine manufacturers are increasingly eyeing the foreign market.

inovel Tao Gang, said company spokesman in China, sharp, "internationalization" is "top priority." He said: "China will be a sharp into a truly international enterprise in the process of overseas business transactions will play a decisive role. (Europe) China is undoubtedly one of the most important markets sharply."

Aina Kang’s factory in Magdeburg, the Berlin office of the company • Ruth Brand - Schock (Ruth Brand-Schock) is worried about China, when asked, replied succinctly: "worried about . "

She said: "We see the solar industry precedent, as well as China’s grand strategy to seize the global market." She was referring to China has become the world’s largest producer of solar panels that fact. In the field of wind energy, the situation is just the beginning.

"The quality of the fan, the Chinese company over, but European companies, so it gave us some time, but this time is not too much."

So far, the Chinese fans in Europe is also relatively slow pace of development.

from:http://www.allwindenergy.com/hummer/post/wind-turbines-chinese-company.htm

Hummer wind turbines 

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from:http://www.allwindenergy.com/hummer/post/specfication-10000w-wind-generator.htm

Hummer wind turbines 

From 2008 to 6500 yuan / kW in 2009 down to 5400 yuan / kW, to 2010, below 4,000 yuan / kW, and now, more fans began to offer less than 3,500 yuan / kW, compared with three years ago almost cut , the major domestic manufacturers of wind turbine prices gradually approaching the "last line of defense", walk in business life on the line small wind turbines between profit and loss.

Landed in the "small alley"

, fan price war intensified.

"At present, there is a certain degree of price decline fan of excessive, irrational down." Goldwind Science and Technology Co., Ltd. (hereinafter referred to as "Goldwind") Yao, director of public home wind generator affairs says the rain.

The data show that between 2007 and 2008, the fan prices down 13.3 percent to 6,500 yuan per kilowatt, the downward trend in 2008 and 2009 increased 18.5% to 18.9% into 2010. "So after roughly 10 months the price per kilowatt will drop $ 500, now reduced to six months, four months or less, irrational price war could lead to potential quality Horizontal wind turbines risks." Yao-yu said.

Early April 2011, rejected U.S. Sinovel superconducting energy equipment maker’s goods, events, had caused uproar in the industry, returns behind the reflection of China’s wind power business into a cash flow of the precarious situation. According to the Sinovel results published in 2010 showed growth in both revenue and profit situation, the 2010 Love sharp wind power generated from operating activities Net cash flow is negative 10 billion, while in 2009 this figure was 13.8 billion.

Coincidentally, Goldwind the first quarter of 2011, home wind turbines announcement that it expects January to June 2011 net profit decline over the previous year does not exceed 50%.

"At present, companies are under the stalemate in the cost line, in terms of some companies is even lower than the cost line." Goldwind Zhou Tong, director of strategy and planning is no denying the fact that if this situation lasting three to five years, then fan manufacturers probably will be nothing left.

Foam boosting blowout

Needless to say, the biggest wind power market is subject to contradictions and network constraints. But the other side, China’s wind power market, the rapid development gave birth to too many business and competition, but also accelerated the formation of foam in this industry.

Ping An Securities Research report, has experienced five consecutive years "blowout" fast-growing wind power industry, the growth rate has begun to decline in 2010 to 37%, while total domestic machine wind turbines manufacturers nearly one hundred, the total capacity in 2011 will reach 29GW, while the actual demand of only 15GW ~ 18GW.

Zhou Tong seems in the past few years, wind power equipment industry to double growth, the rapid development of high-profit induced by a large number of manufacturers flocking, and customer focus on five power generation companies to meet the development conditions of the wind resources are dwindling. "All of the factors pressing in the power industry lookout a small alley, now contributes to the bottleneck effect."

And even worse is that the price plunged so many fans off guard companies.

"In the past the fan industry has been enjoying the benefits of wind turbine generator rapid development, but now prices magnitude of the efforts of hard for everyone to form a great psychological impact." Zhou Tong admitted.

Although the industry as a whole into the next ramp, the vicious cycle of competition remain.

In the joint venture company for wind turbine equipment seems fan companies in the wind power project bidding in order to compete with successful low-cost and lower prices, even not surprising. "To survive we had to bite the bullet and move forward, the first tier of the past, fans can not lose business market share, second and third tier companies will need to gain greater market share, so the prices become each other flame weapons. Not small wind turbine equipment is not a state-owned enterprise background, is a listed company as a support, you can get other businesses to subsidize the profits of this part of the business losses, some capital and technology companies is relatively weaker escape. "

According to reports, although the total number of domestic companies close to 100 fans, but the actual operation and the formation of a certain size, only 30 or so, and that 30 other companies have begun to slowly withdraw from the market.

Reshuffle is about to begin

This fight, the profit is followed, the company first and foremost consideration is how to survive in the market.

"Prices have margin of safety, that is, cost of quality, if the security context of through industrial scale, technological progress, management can promote the refinement of the decline in prices in a rational manner, and the current decline in non-rational." Face of pressure , the joint venture company for wind turbine equipment concerns, price competition will increase the quality of risk.

"Now the price has been reduced to 1.5MW turbines 3500 wind generator yuan per kilowatt or less, but I personally think that prices will not be a long-term trend, with the wind power technology requires more and more, prices will likely remain at this level or slightly up. "one general manager said the wind power development.

He further explained that in recent years, look at the development of Chinese wind power market, wind power generation equipment, the price of becoming less and less tender, but some fans frequent quality issues, technical issues such as non-compliance but also to developers miserable. "Developers should not blindly pursue cost per kilowatt, but pay more attention to the cost of electricity from the wind farm investment, wind farm operation and maintenance costs and the consolidation of power generation to consider a longer-term vision and quality evaluation of fan efficiency. "

Qin Haiyan, China Wind Energy Association, said the power domesitc wind turbines issue now outstanding, the market slowdown, the deterioration of the competitive environment, the wind power industry is indeed facing great pressure on the fan equipment reliability requirements more stringent, the more technical requirements to higher capital, technology, management of powerful enterprise to win.

"Wind power equipment industry has begun to reshuffle." Shi Pengfei, vice president of Chinese Wind Energy Association this prediction.

Being developed according to the "five-second" energy planning and renewable energy plan, 2015, China will build offshore wind power 500 million kilowatts, the formation of offshore wind power set of technologies and build a complete industrial chain, after 2015, China’s offshore wind Power will enter large-scale development stage, reached wind generators manufacturers the international advanced level of technology. 2020 China’s offshore wind power will reach 30 million kilowatts.

National Energy Board 22 in Nantong City, Jiangsu Province, the work of the forum held in offshore wind power. According to the information on the forum, the National Energy Board will start the second half of 2011, offshore small wind turbines concession projects tender preparation, tender first half of 2012, the total scale of construction in the 150-200 ten thousand kilowatts of room.

Liu Qi, deputy director of the National Energy Board that the offshore wind power is a global wind power technology development and industrial competitiveness in the forefront of Chinese companies in offshore wind power development have reached the international advanced level.

Liu Qi said that China will strengthen the offshore home wind power generators resource assessment and development planning for comprehensive and sustained development of offshore wind power to lay a solid foundation, while solid job building of offshore wind power project preparatory work, in-depth technical studies and project preparation; and competitive bidding will take a combination of new ways to promote technology demonstration offshore wind power construction, synchronous increase offshore wind power’s economic and technological level, to further improve the technical standards and service system to ensure offshore residential wind generator equipment and construction quality and safe and reliable operation.

Offshore wind power has rich resources, hours of high electricity use, not suitable for large-scale occupation of land and the development of features, is the world’s latest cutting-edge wind power development. China completed in June 2010 thousands of Wahe Shanghai Donghai Bridge 10 on the demonstration wind farm, which is put into operation in Europe outside of the only offshore wind farm. Long Yuan Electric Power Group Corporation built the world’s first offshore tidal test homemade wind generator farm, and on June 21, 2011 start up 150,000 kilowatts engineering, technology and equipment for the construction industry shift from technology demonstration test.

China’s wind turbine manufacturing industry will undergo significant changes in the wake of new industrial restructuring guidelines which will come into effect on June 1.

China’s wind power industry, which has developed by leaps and bounds over the past five years, will have to follow a new series of guidelines and restrictions, according to the 2011 edition of the Guideline Catalogue for Industrial Restructuring, a set of policy guidelines recently released by the National Development and Reform Commission (NDRC).

The new guidelines state that "new energy" sources, including wind energy, shall be considered as a separate category for "encouraged development". The 2005 edition of the guidelines stated that wind energy and other sources of clean energy would be grouped in with traditional sources. Industry officials say that once an investment project is listed in the "encouraged development" category, the company or companies behind the project can enjoy preferential treatments such as floating shares in the stock market, lighter requirements for new bank loans and tax breaks.

However, under the new guidelines, China will not extend these preferential policies to companies that produce wind turbines with 2.5-megawatt-capacity or lower. Instead, the policies will encourage the development of larger-capacity turbines, as well as components for control systems and converters for these larger turbines.

"There is an overabundance of investment in emerging energy sectors, such as the wind generator manufacturers  sector. This is the result of an influx of capital into China’s equipment manufacturing industry, which is operating under the idea that China has strictly controlled fixed investments in sectors that consume more energy and resources," said the NDRC in its interpretation of the new guidelines.

"If we don’t regulate these sectors, companies will encounter problems in production and management. This will hinder independent innovation and restructuring," the NDRC said.

In March 2010, the Ministry of Industry and Information Technology (MIIT) issued a circular in which it asked for public opinions on the management of the country’s wind power industry. In this document, the MIIT stated that new wind turbine manufacturers must have the ability to produce wind turbines with 2.5 megawatts of power generating capacity or higher.

Industry officials said that with the new guidelines, China has finished fine-tuning its wind turbine manufacturing industry’s policies, and that the production of outdated small wind turbines will be eliminated.

"The MIIT access standard is fairly high. No more than 10 of China’ s 80-some wind generator  manufacturers can meet the standard," said Ma Xuelu, vice president of the China Wind Energy Association (CWEA). "So far, the top 10 wind turbine makers account for about 80 percent of the Chinese market, and the top 15 have claimed about 95 percent of the market share. The remaining turbine makers must share the other five percent. How much can they earn?" said Shen Dechang, deputy secretary-general of the wind power equipment branch of the China Association of Agricultural Machinery Manufacturers (CAAMM)

"In the next three to five years, about 80 percent of China’s wind turbine makers will disappear through mergers and acquisitions," Shen said. Wind turbine manufacturers that can’t meet the new regulations still have the option of "going global" by selling their outdated wind turbines to other countries. However, industry officials have said that the overseas market is out of reach for most Chinese wind turbines manufacturers, who are largely unfamiliar with international market rules and legal environments.

According to the CWEA, China exported just 13 wind turbines in 2010. This accounted for less than 0.5 percent of the export figure originally predicted by Chinese wind turbine generator manufacturers for that year.