Development of New technology:Switchable Mirror Sheet Using Gasochromic Method

Kazuki Yoshimura, Energy Control Thin Film Group, the Materials Research Institute for Sustainable Development of the National Institute of Advanced Industrial Science and Technology, has developed a switchable mirror that uses a new switching method.

Space-Time Physics - Particles, fields & forces derived from 4 dimensional space-Switchable mirrors can be switched between a transparent state and a mirror state. Their use can yield energy-saving window glass that substantially reduces cooling loads by effectively blocking sunlight. The developed switchable mirror sheet uses new gasochromic switching that is completely different from conventional gasochromic switching methods. It can control the reflection of visible to near-infrared light at a switching speed about 20 times faster than that of conventional electrochromic switchable glass. The present development can solve the issues involved in bringing gasochromic switchable mirrors into practical use. Because the thickness of the thin film that controls light is about 1/10 that of conventional films, substantial reduction in production cost is expected. Details of this technology were exhibited and presented at Nano tech 2013, the 12th International Nanotechnology Exhibition and Conference, held from January 30 to February 1 at Tokyo Big Site in Koto-ku, Tokyo. Air conditioning accounts for about 30% of energy consumption at home and at work. A window is a building component that significantly affects energy consumption. Normal window glass transmits visible light as well as heat and reduces the effectiveness of insulation. Increasing the insulation value of windows is very effective in saving energy, and double-pane glass and low-e (low-emissivity) glass with high insulation values are becoming widely used. Switchable glass can control incoming and outgoing light and heat to increase energy-saving effects by insulating heat and blocking sunlight. Electrically controllable electrochromic glass is a typical type of switchable glass. Recently, in the United States, electrochromic glass with a tungsten oxide thin film as the switchable layer has been commercialized for building applications. However, inexpensive switchable glass is required to promote the widespread use.

Glass Inspection Systems - Industry proven solutions to reduce costs in flat glass manufacturing. All conventional electrochromic glass absorbs light to control light and therefore has a drawback; the temperature of the thin film rises and the film re-radiate heat into the room. If light could be controlled by reflection, then sunlight could be blocked more efficiently. Therefore switchable mirrors that can be switched between the transparent state and the mirror state are awaited. Since 2001, AIST has been conducting research and development of thin-film materials for switchable mirrors. It has installed actual-size window glass in a real building and has demonstrated that the glass can reduce the cooling load by more than 30% compared with conventional transparent double-pane window glass.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com


 

Ganzhou, the Capital of Tungsten

Ganzhou, Jiangxi, the birthplace of China’s tungsten industry, which is known as “the capital of tungsten”.

In 1907, a German cleric found tungsten deposit in Huaxi Shan Mountain of Dayu county. The history of exploiting tungsten in China started in 1914 when people found large deposits of tungsten one after another in Zhongshao, Chongyi, and Daji shan Mountain in Quannan county. In 1931,Mao Zedong who was then the bank president and general manager of “ Chinese Tungsten Ore Enterprise” of Chinese-Soviet Republic, during his term of office, the mining quantity reached near to 8000 ton, creating a wealth worth of 6.2 million yuan, by which he was able to exchange large volume of drug, salt and arms. Tungsten has played an important role in breaking through the beleaguer and economic blockade arranged by KMT.

 

After the establishment of the People’s Republic of China, nine state-own mines, 16 local mines and over 20 collective mines were established in Ganzhou, Ganzhou became one of the most important producing areas of raw tungsten in China even the whole world. During which time, geologists ascertained that there were 106 tungsten mines with a storage of 1.17million tons, the producing area ranks No.2 in China in terms of reserve volume, but ranks top in term of the reserves of wolframite , the area accounts for 70% of like product in China and 60% in the world.  

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

New Large Mineral Deposits of Tungsten, Molybdenum and Nickel Were Found in China

According to the head of Geological Exploration Bureau of Ministry of Land and Resources, our country has made an unexpected achievement since we have launched the strategic action in prospecting, a batch of mineral deposits of world-scale storage have been found and ascertained.

 

It is reported that the strategic action of prospecting aiming at strengthening the energy security domestically is a national strategy. Two years after the action was enforced, our country has ascertained a super large sandstone-type uranium deposit in E'erduosi Basin(Known as Daying uranium deposit), and large mineral deposit of tungsten, molybdenum, nickel, while large deposits of new energy sources have been found in areas like Gansu, Xinjia.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Tungsten Industry Into Economic Development Leading Force In Gan County

2012 County, Jiangxi tungsten industry realized main business income of 6.62 billion yuan, a year-on-year growth of 26.9%, the tungsten industry driving large-scale industrial growth by 7.5 percentage points, the tungsten industry has become the leading force to promote the county's economic development.

County tungsten mines is bigger and stronger tungsten industry further, first unified integration planning and promotion, to achieve the optimal allocation of resources, focus on strengthening of large enterprise groups with Jiangxi University of Science and Technology, the National Center for tungsten seized, city technology innovation center cooperation and scientific research institutes, and strive to improve the value-added products, to extend the industrial chain. Followed the growth of leading enterprises, World Rui focus on new materials, new materials Yuanchi Jiangxi Tungsten tungsten alloy strength leading enterprises have the potential to give support in the capital, water and electricity supply, policy, personnel. Give priority to the supply of raw materials, implement county optimal allocation of resources, and guide resources gathered to leading enterprises, and promote the industry bigger and stronger. At the same time, speed up scientific and technological innovation, the role of fiscal skillfully deflected to support enterprises to expand their reproduction and technology updates, transforming technological achievements, guide enterprises from the rough to the development of deep processing, take the science and technology, saving, environmentally friendly way of development. Currently, there are 10 million tungsten processing enterprises in the county the main business income tax exceeds four million.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com


 

Potential Value of Mineral Resources Explored In 2012 Reaches Over 100 Billion Yuan

The news from 2013 Annual Work Conference of Zijin Mining Group: in 2012, the Group invested 450 million Yuan (equivalent to USD 71.68 million), and made significant breakthroughs in geological exploration, which discovered 60.45 tonnes of gold, 408,000 tonnes of copper, 2,046,700 tonnes of lead and zinc, 17,200 tonnes of molybdenum , 161,400 tonnes of tungsten, 126.4 tonnes of silver and 1,185,700 tonnes of iron ore. Meanwhile, the total mining rights obtained are worth of almost 5 billion Yuan (equivalent to USD 796.44 million), and the potential value of newly-proven mineral resources reached 100.2 billion Yuan(equivalent to USD 15.96 billion).

Zijin regards mineral resources as the foundation for an enterprise to survive and develop, regards resource control as the major strategy, and insists on exploration together with acquisition. Meanwhile, it implements diverse resources strategies, including mineral prospecting at the depth and adjacent areas, risk exploration, merger and acquisition of domestic and oversea projects, and improvement of comprehensive utilization of mineral resources. Currently, over 60% of resources held by Zijin are from self-exploration, and the increase in resources and reserve are much more than its consumption, which firmly lays a solid foundation for company's sustainable development. So far, Zijin still keeps the title of "the enterprise with most maintenance of metal mineral resources in China". The potential value of holding resources exceeds over 1 trillion Yuan(equivalent to about USD 159 billion).

In 2012, Zijin increased its investment in geological exploration. Relevant statistics show that the exploration cost Zijin invested in 2012 accounts for over half of the total investment in the past three years. "the input-output ratio in our exploration is the highest, according to the current situation, the increase in copper resource and reserve in Zijinshan in the next several years are estimated to reach 4-5 million tonnes, which equals to half of the planned increase in copper in next three years in China." told by Zhang Shunjin, President of Zijin geological exploration institute.

Mr Zhang made a calculation and found out: 60.45 tonnes of gold with mining rights and potential value worth1.2 billion Yuan(equivalent to US 191.15 million) and 21.5 billion Yuan (equivalent to USD 3.42 billion) respectively; 408,000 tonnes of copper with mining right and potential value worth 1.224 billion Yuan(equivalent to USD 194.97 million) and 24.5 billion Yuan (equivalent to USD 3.90 billion)respectively, 2,046,700 tonnes of lead and zinc with mining rights and potential value worth 1.28 billion Yuan(equivalent to USD 203.89 million) and 30.7 billion Yuan(equivalent to USD 4.89 billion) respectively ; 17,200 tonnes of molybdenum with mining right and potential value worth100 million Yuan(equivalent to USD 15.93 million) and 2.8 billion Yuan (equivalent to US 446.01 million)respectively; 161,400 tonnes of tungsten with mining rights and potential value worth 1 billion Yuan (equivalent to USD 159.29 million)and 19.4 billion Yuan (equivalent to USD 3.09 billion)respectively; 126.4 tonnes of silver with mining rights and potential value worth 25 million Yuan (equivalent to USD 3.98 million)and 600 million Yuan (equivalent to USD 95.57 million)respectively and 1,185,700 tonnes of iron ore with mining rights and potential value worth 25 million Yuan (equivalent to USD 3.98 million)and 700 million Yuan(equivalent to USD 111.50 million) respectively. The total value of mining right above reaches 4.854 billion Yuan (equivalent to USD 773.19 million), the total potential value reaches 100.2 billion Yuan (equivalent to USD 15.96 billion). "It means that the nearly 500 million Yuan (equivalent to USD 79.64 million)invested by Zijin in geological exploration in 2012 creates mining rights worth almost 5 billion Yuan (equivalent to USD 796.44 million)and potential value of mineral resources exceeding 100 billion Yuan(equivalent to USD 15.93 billion)!!!"


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

 

WeChat