Recent domestic economic environment remains in the doldrums, tungsten downstream demand remained weak, tight liquidity market businesses generally. Downstream manufacturers and product unmarketable because of funding constraints, while procurement is not active, actively lower prices; Scheelite high cost stock traders, shipping basically are faced with upside risks, so low will ship, and try to purchase low-cost supply of working capital , with low price and reduce risk.

It is understood that, because the market generally facing funding constraints of this problem, so now many products are tungsten cash transactions, especially tungsten ore, non-cash does not ship. Due to the current inquiry was okay, less low-cost supply, resulting in the difference of 55-65 grade tungsten ore pulled a small, 55-grade tungsten concentrate purchase price is 105,000 yuan / ton, 60 more than the price buyers are willing to accept 10.5 -10.6 yuan / ton.


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Researchers in China have taken a major step towards overcoming one of the main hurdles that is hampering the exploitation of carbon nanotubes for many high-tech applications – how to synthesise chirally pure samples.

The chirality of a single walled carbon nanotube (SWNT) is defined by the diameter of the tube and the wrapping angle, or twist (m), expressed as the index (n,m). Slight changes in these parameters can lead to markedly different properties, so being able to produce a single chirality on demand would represent a major step forward. So far, however, this has proved challenging.

Now, researchers led by Yan Li of Peking University have developed a nanocrystalline tungsten-containing alloy catalyst that that produces SWNTs with more than 90% uniform chirality of the form.

Chemical vapour deposition (CVD) methods of producing SWNTs rely on a carbon-containing vapour, such as ethanol, attaching to nanocrystals of a metal-containing catalyst, whose structure largely determines the chirality of the resulting nanotube. Typically these catalysts contain mixtures of metals such as iron, nickel, copper or cobalt.

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Tungsten market: Tungsten City continued weak run, demand continues to slump dragged down by excess supply, tungsten prices steady kicked upstairs, thinly traded, and only a small amount of the transaction are also trading, APT market downturn in overall demand, market inquiry single-less, if there is no long-term acquisition of APT do inventory, market transactions or worse than tungsten concentrate. Sodium tungstate increasingly weak demand, the overall market showed a downturn trend, manufacturers or reduced sodium tungstate run, or suspend production sidelines ahead, manufacturers sluggish sales, is expected this week tungsten City or weak die hard.

This week APT overall market demand is low, the single market exercise less, if there is no long-term acquisition of APT do inventory, market transactions or worse than tungsten concentrate. Currently focused on the trading price of 16.3-16.6 yuan / ton. Expected this summer, APT weak market or mainstream steady run. It is understood that the majority of manufacturers are compressed APT production operations, some manufacturers even run cut edge becomes improved production equipment to meet increasingly stringent environmental requirements.

Downstream market due to lack of pigment started, sodium tungstate increasingly weak demand, the overall market was sluggish trend, manufacturers or reduced sodium tungstate run, or suspend production sidelines ahead, manufacturers sluggish sales, the main supply and old customers long-term cooperation, new orders difficulties.


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Recently, reporters learned that the industry has been focused on the tool grinding equipment round up one company, the latest development and production of LD702CNC automatic CNC tungsten carbide screw-tap grinder tap through Shanghai Tool Works Co., acceptance, well into production operations, becoming China's first Taiwan goods automatic CNC thread grinder Taps, it also marks our automatic CNC tungsten carbide screw-tap grinder gradual integration of world-class technical level, winning glory for the enterprise, winning glory for the people, for the nation proud. 　

It is mainly used in production of the manufacturers tungsten carbide screw-tap thread grinding, high automation, high precision, high efficiency, high intelligence, stability and reliability. Tungsten carbide screw-tap thread achieve full function processing, can be processed straight flute taps, spiral flute taps, taper pipe thread tap and squeeze tap. 　　　

Machine control section uses advanced digital control systems and our self-developed software has good man-machine interface and interactive features, do not need professional CNC program, the use of intelligent reporting operation menu, no special requirements on the operator.

 

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Tungsten is usually used as a target material in x-ray protection for two reasons:

1. Tungsten has a relatively high density, which could protect relatively high energy characteristic x-rays

2. Tungsten has the highest melting point of any metal, and because over 99% of the energy put into the x-ray tube to produce the beam is turned into heat energy, the ability to disparate the heat without loosing structural integrity is critical.
 

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Tungsten market: Scheelite market remains in the doldrums, the market mentality is difficult to improve, manufacturers cash flow difficulties, purchasing enthusiasm is not high, the majority of manufacturers are currently bargain purchase a small amount of tungsten concentrate, not buy, hold stocks sidelines waiting "gold, nine silver ten "mentality is strong, tungsten scrap market, although relatively strong, but the business mentality is still disagreement, very price and pessimism coexist. Downstream tungsten smelter shipped more difficult, tungsten iron, tungsten, sodium, and other manufacturers have discontinued many difficulties manufacturers funds, procurement of raw tungsten concentrate cautious now in the traditional off-season, and even less procurement activities, expected the recent tungsten ore deal case there is no breakthrough, and the prices continue steady run.

Tungsten concentrate prices temporarily stable operation, the market mentality is difficult to improve, although scrap tungsten prices relatively strong, but the business mentality is still disagreement, very price and pessimism coexist. Currently the market is still a certain demand, but the poor performance of the overall turnover is expected to more than short-term waste tungsten market will continue steady sidelines.

Tungsten scrap market continues to hold steady on the sidelines. Currently waste tungsten drill mainstream transaction price excluding tax is still concentrated in the 188-190 yuan / kg, domestic waste tungsten blade 169-171 yuan / kg, imported blade 179-181 yuan / kg. 30-40 degrees grinding tungsten scrap material concentrated near the trading price of 1.6 yuan / kWh, 50-70 degrees concentrated in the vicinity of 1.76 yuan / kWh, more than 70 degrees centered around 1.85 yuan / kWh, but the individual businesses that 1.72 yuan / kWh you can receive 80 degrees sources.

Overseas tungsten City temporarily stable operation. 18 evening MB ferrotungsten Rotterdam quote 41.5-42.5 USD / kg tungsten, ammonium paratungstate Europe quoted 360-370 U.S. dollars / metric ton, quoted in Hong Kong dollars 365-370 / metric ton, steady. With the approaching summer break in Europe, is gradually weakening overseas demand is expected to continue short-term overseas tungsten City or steady.


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Circle fish hooks with tungsten alloy are a popular live bait hook used in both saltwater and freshwater fishing applications. Circle hooks are well known for hooking more fish in the corner of the mouth making fish hook removal quicker, easier, and less stressful to the fish. T

he Tungsten alloy circle fish circle hook is a fishing hook designed so that the point is turned perpendicular to the shank to form a circular shape. The principal advantage to using circle hooks is that fish are almost never deep-hooked - research has found that circle hooks are more likely to hook a fish in the mouth rather than the gut, making them easier to remove and reducing harm to the fish.

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The North American Ice Fishing Championship (NAIFC) team of Captains Joe Pikulski and Myron Gilbert are on to something. Last year, the dynamic Michigan duo-both Great Lakes charter boat captains in the "off season"-took home their fourth NAIFC Team of the Year title, in nearly as many winters. Helping cement their win, the boys took two 3rd place finishes, a 5th, and various other top tens. In 2008, they dominated the highly competitive field, notching wins at Wamplers Lake, Michigan, as well as the NAIFC Championship at Boom Lake, Wisconsin.

Beyond crafty tactics, to accomplish their goals of winning tournaments, Joe and Myron's system relies on the choicest tackle. "Our go-to bait is a tungsten 5mm Wolfram jig dressed with one of several varieties of Little Atom plastics," Tungsten jigs，says Joe, fish much heavier than lead, allowing the anglers to use much smaller hooks and jig heads that thump like little heavy rocks down below the hole.

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