Three Mile Island and Fukushima have both demonstrated accident situations where the pressure and temperature inside the reactor were unknown to operators. Conventional pressure sensors and conventional temperature sensors fail when exposed to those harsh conditions, which include high pressure, temperature, and radiation. That lack of information regarding internal state can negatively affect how an accident is handled. In order to prevent any future accidents from ever reaching a similar severity, a new self-powered wireless dual-mode sensor with a composite tungsten-boron-carbide material had been produced.

Temperature and pressure sensors are vital pieces of monitoring equipment in a nuclear reactor, especially during accident conditions where temperatures and pressures can reach 1400 degrees Celsius and 10,000 PSI respectively. Unfortunately, conventional sensors cannot operate under the high temperatures, pressures and radiation conditions that occur during an accident. By choosing to work with a composite tungsten-boron-carbide material, harmful neutron and gamma ray radiation would be effectively attenuated for the langasite sensor to operate under normal operating conditions as well as extreme accident conditions. The maximum neutron fluence was determined using a TRIM simulation which was the basis for the decision of optimal material composition and thickness of the shielding, which was determined using MCNP simulations.

The shielding material for the system were chosen as composite of tungsten-boron-carbide to effectively shield neutron and gamma radiation. The design of the radiation shield is cylindrical as shown in the figure. Appropriate thickness and the material composition of the shielding material are determined through MCNP simulation. This radiation shield enables the sensor to be functional for five years inside the core.

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Tungsten market: Festival tungsten City needs no improvement, but tight end funds, some traders Paohuo will increase, but hold stocks strongly down the inquiry, love it or leave, tungsten spot market continued stalemate, raw material prices have been low consolidation for some time, buyers and sellers are not high enthusiasm. Product oversupply, weak demand for raw materials procurement, product prices were relatively stable, however turnover in the doldrums. Short-term stability of the tungsten market vulnerable disc, the risk is still slipped.

Molybdenum market: International Molybdenum market is still down, and molybdenum oxide record lows. The molybdenum raw materials market is still sluggish weak, poor procurement will lower molybdenum short-term market bottom is still hard to say.

Fujian Provincial Department recently issued a province's fiscal 2015 total rare earth and tungsten ore mining control targets, requires localities to strengthen management control indicators, thorough investigation of ultra indicators of production, the exploitation of the quota assigned to another person and other illegal acts.

According to Land and Resources reported news, according to Ministry of Land Resources 2015 annual allocation ionic rare earth oxides Fujian Province, the total tungsten concentrate production control indicators, Fujian Provincial Department clearly this year the province's total ionic rare earth oxide production control indicators 2000 tons; tungsten concentrate (65%) of the total production control target of 2900 tons, of which the main mining 2500 tons, comprehensive utilization of 400 tons.

Fujian Office stressed that the state of rare earth minerals protective mining, illegal mining of rare earth mine for undocumented behavior, once discovered, land and resources should be severely punished, to be submitted to the county government shut down; for to all types of construction projects on the grounds, without approval recycling of rare earth resources, all to be dealt with by unlicensed mining and closed down.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tungsten City needs no improvement, but tight end funds, some businesses Paohuo willingness increased slightly, but hold stocks down inquiry, spot transactions continued stalemate, the short-term stability of the tungsten market vulnerable disc, the risk is still slipped.

Macro, central locking 26 second round patrol units, the first time touched the rail system; five hundred billion financial guidance funds steady growth, distribution up to the vote; HSBC in June PMI initial three-month record high.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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In the international machine tool exhibition held recently, Siemens demonstrated the "smart innovation, digital manufacturing," the feast of intelligent machines, Siemens is the unique technology and IT technology to the industry once again demonstrated intelligent digital technology to lead the future trend of the machine tool industry.

In May, China's exports of intelligent machines to Germany, Britain, Italy, Russia and Turkey, which is China's first batch of high-end smart machine door opened to the European market. Intelligent machine, by definition, the manufacturing process can make the machine decision. Intelligent tools to monitor, diagnose and fix all kinds of bias during the production process, and can provide optimal solutions for the production, in addition, can be used to calculate the cutting tool, the spindle bearings and the remaining life of the guide, allowing users to clearly the remaining time and replacement time. Intelligent machines meant to give the machine is installed outside the "brain", "brain" application needs with touch operation panel, various sensors and magnetic materials. We have to say, the function of these devices can not be separated play rare used.

ITO target (indium tin oxide) for its conductivity and transparency, a touch panel is widely used in the production of the material. In addition, high-precision machine tool manufacturing rely on accurate sensing devices. We know that the sensing device, most are special semiconductor properties of rare metals play a role. Sensor materials sub semiconductor materials, ceramic materials, metals and organic material four categories. Semiconductor sensor material is mainly silicon, followed by germanium, gallium arsenide, indium antimonide, lead telluride, cadmium sulfide and the like. Mainly for the manufacture of power-sensitive, heat-sensitive, light-sensitive, magnetic, radiation-sensitive and other sensors.

Of course, high-end machine must meet high quality material. Also known as tungsten carbide-cobalt alloy - cobalt alloy, a cobalt content can be divided into high cobalt (20% to 30%), cobalt (10% to 15%) and low cobalt (3% to 8%) Triple class. Such cermet may generally special ceramic ingredients, such as molding process. Tungsten carbide cobalt carbide needed than other common criteria in coercivity, magnetic saturation, elastic modulus, thermal conductivity, thermal expansion coefficient, hardness, bending strength, compression strength, impact toughness and so on.


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Tungsten market: about to enter July, near the end, the raw materials market is still clouded, manufacturers pessimistic attitude, wait and see mood to heat up. Tungsten businesses operate more prudent to return the funds, tungsten market demand further weakened by about 20% tungsten iron smelter home operating rate is expected to present tungsten prices or not yet stabilized dish steady, late or are still downside risks. Tungsten prices continue to decline slightly or varying degrees of Dragon Boat Festival.

Molybdenum market: the market situation is difficult now turn, molybdenum oxide and molybdenum and iron market pressure diminished, steel prices continued to depress the tender, both supply and demand are weaker mentality. Mine terms of cost pressure is still large, cheaply difficult, leading to lower turnover rate.

About to enter July, near the end, tungsten businesses operate more prudent to return the funds, tungsten market demand further weakened, tungsten prices fell slightly after the Dragon Boat Festival or another in varying degrees.

Macro level, the inter-bank market interest rates rise again, or the central bank will increase the intensity of loose; Jingjinji intended for compiling thirteen five-year plan; the State Department behind cross-border electricity providers leveraging the "Internet +" to promote the recovery of foreign trade.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tungsten and non-ferrous metals is one of the three county more than traditional industries, in recent years, the county does not stick to these traditional industries, "tradition" in the innovation and development continue to make new breakthroughs, to open a "new flower" blossoming.

The transformation of traditional industries in the end is how to develop it? Recently, the reporter walked into the Dayu County Industrial Park, the road of transformation and upgrading of traditional industries.

Traditional tungsten and non-ferrous metal processing industry is an important support Dayu industrial economy had to rely on wind and water resources. However, because the threshold is too low, competition in the industry, the company's profitability to decline again. One moves, Dayu County timely development direction of the tungsten and non-ferrous metal processing industry turned to the high-end, so that industry by "high" to "green" to accelerate Butterfly.

To build the base of tungsten resources become an important distribution center, tungsten and non-ferrous metal processing industry base as the goal, Dayu County, relying on Xinhua industrial district focusing on planning and construction of industrial base, planned area of ​​5,000 acres, to promote industrial district within one kilometer range Residents District relocation work.

Looking to large projects and high-end enterprise, Dayu County around the industrial chain investment, set up more than 10 investment team traveled throughout the country, increase the world's top 500 domestic and 500 central enterprises, enterprises of tracking efforts, the main high-tech industry driving efficiency of large projects. In more than two years, the county introduction of tungsten and non-ferrous metal processing enterprises over 20, a group of deep-processing enterprises have settled in the traditional tungsten industry gradually extends from the low-end to high-end deep processing of initial processing.

At the same time, Dayu County do everything possible to support enterprises to implement technological transformation and innovation, to arrange more than 20 million yuan each year for industrial development funds, subsidies and incentives for companies to give. Currently, the county tungsten and non-ferrous metal processing industry base has gathered more than 40 enterprises, the initial formation of the "Mining - primaries - deep processing - Scrap Recycling" integrated loop industrial system. As of April this year, the county's tungsten industry 1.54 billion yuan of industrial output value.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tungsten market: Tungsten Tungsten recent market weakness City steady, APT smelter difficulty walking home goods, tentative offer constantly falling, no significant improvement in market demand. Tungsten concentrate buyers and sellers deal stalemate, the purchaser down the inquiry, hold stocks for a time refused to cut prices, tungsten ore spot volume was light, then the Dragon Boat Festival is expected or still slipped after ore price risk, 60 wolframite or 7.3-7.5 yuan / ton. Tungsten concentrate in the short term, paratungstate market or slightly lower, but does not rule out the possibility of shock consolidation.

Molybdenum market: International Molybdenum market decline continues, the domestic raw materials market is still clouded, manufacturers pessimistic attitude, wait and see mood to heat up. Ferromolybdenum market volume was light, the overall inventory is acceptable, but offer more confusion, the level of co-existence, is expected to short-term domestic molybdenum market continued weak run.

Tungsten concentrate buyers and sellers deal stalemate, the purchaser down the inquiry, hold stocks for a time refused to cut prices, tungsten ore spot volume was light, then the Dragon Boat Festival is expected or still slipped after ore price risk, 60 wolframite or 7.3-7.5 yuan / ton.

Macro, oil price adjustment window meet again next Tuesday, multi-agency forecast price will aground; continued to decline in May, exports fell, imports continued to slump; State Department: 3 years 18 million units in shantytowns program will start.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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