This week tungsten powder smelter home production enthusiasm is not too high, powder prices have once again lowered the relative last week lowered 3-4 yuan / kg. It is understood that the particles of tungsten powder tax offer for 222-225 yuan / kg, tungsten carbide powder particles tax offer for 220-224 yuan / kg; and then there are the actual transaction tungsten powder 220 yuan / kg transaction prices, tungsten carbide powder has now sold 220 yuan / kg or less.

Tungsten smelter home enthusiasm for production reasons for the decrease are: ① near the Gregorian calendar of the year, manufacturers will respond loan audit bank to return the funds, reduce production capacity; ② raw material prices continue to decline, the market outlook is likely to continue to decline, so cautious manufacturers operate; ③12 month guided this upcoming weekend, tungsten and more businesses currently watching the market, waiting for the introduction of further guided decision.


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Sodium tungstate market demand continues to be light, strong factory very price conscious, offer little change relative to the previous week, 96% sodium tungstate mainstream offer is still strong in the 11-11.3 yuan / ton, but the turnover Yindie actual transactions cash price has been difficult to reach 110,000.

Since last week's Pan Asia received suspended APT, APT reduce demand, APT smelter cash flow is more intense, APT market prices broadly lower, manufacturers very price conscious. It is understood that this week the acquisition of Pan Asia continue to be suspended yesterday for some big partners to pay a small amount of money. It is understood that some of the APT smelters still strong at home 145,000 yuan / ton offer, then the actual transaction price of APT small amount of trading spot 14.1-14.3 yuan / ton, the price of a large amount of orders more than 14 yuan / ton the following.


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Tungsten market: the beginning of this week, tungsten spot market volume was light, the market with little turnover, however still significantly weaker demand, tungsten whole inquiry is still slow down, Scheelite abnormal turnover was light, the market Yindie, market sentiment rich, scrap tungsten market has also been tentatively decline, the market demand continues to light. Analysis is expected before New Year's Day or tungsten prices continue to decline certain space.

Two days Scheelite abnormal turnover was light, and the prices Yindie strong market sentiment is expected to slow this week, down the main tungsten concentrate prices stable. On the one hand, the Pan Asia suspend APT, tungsten concentrate raw weaker market demand, prudent operating downstream smelters home, less procurement requirements, resulting in fewer market transactions; other hand, the guide price to be announced this week in December, the downstream the purchaser and tungsten ore business and more on the sidelines, waiting for the resolution to do guided introduction, many smelters home even suspend operations.

It is understood that now offer 60 degrees wolframite concentrate in 8.3-8.4 yuan / ton, and then the actual turnover has dropped to 8.1-8.2 yuan / ton; 60 degrees scheelite offer concentrated in 8.1-8.2 ten thousand yuan / ton, then the market has now 80,000 yuan / ton of inquiry, scheelite and 55 degrees lower element slightly excessive prices.


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With the continued low prices of raw materials, scrap tungsten market has also been tentatively decline, the market demand continues to light. Large cargo operators who are no longer marketable goods, businesses lose money shipping will not high, the market is almost no bulk deal. Distribution market mostly bulk transaction-based, hundreds of kilograms of a transaction, the transaction price pressure is low, profit margins continue to compress and shipping is relatively expensive. Waste tungsten many businesses are not optimistic about the market outlook, post, or this month is still downside risk.

Waste material grinding tungsten demand more light, nobody low height of shipments, the market is almost no offer, the current mainstream circulation is 60-70 degrees tungsten grinding waste materials, and the price is only 1.3 yuan / degree nearby.


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Tungsten market: With the brewing pan-Asian event, APT take the goods market more difficult, smelters home profits are compressed, also led to the purchase of tungsten concentrate market scarce, the purchaser continues to suppress Scheelite and APT inquiry, expected Next week both still downside risk. Ferrotungsten overseas demand continues to slump, prices continued to weaken, near the end of the year, do not hold stocks of businesses optimistic and want to dispose of the goods as soon as possible, to promote overseas ferro-tungsten prices fell.

With the proliferation of pan-Asian event, the raw material procurement will lower tungsten concentrate, APT smelters reduce home profits, reduced enthusiasm for production, causing the tungsten concentrate less on the sluggish market demand, the market price of tungsten ore constantly probing lower.

Scheelite is currently focused on the mainstream market prices 8.2-8.5 yuan / ton, and the mainstream gradually approaching the low range, the analysis is expected to post or has fallen below 80,000 yuan / ton risk.


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Waste tungsten drill more goods difficulty walking, mainstream prices continue to weaken, and the waste imported tungsten blade spreads narrowed. At present, the domestic scrap tungsten blade is relatively better demand, prices temporarily holding stability, the mainstream market price excluding tax concentrated in 145-148 yuan / kg, and the waste imported tungsten blade spreads narrowed.

It is understood, Hebei market price of scrap tungsten drill excluding tax fell to 157 yuan / kg, lower distribution market price of Jiangsu and Zhejiang provinces, while the main imports of scrap tungsten blade market is concentrated in non-tax price of 150 yuan / kg from top to bottom. Analysts believe that as the market demand continues to slump, tungsten steel scrap between good and poor feeding material spreads getting smaller, and expect the recent mainstream price or scrap tungsten drill down again, closer to the low turnover.


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International market: Overseas ferrotungsten demand continues to slump, prices continued to weaken, the latest MB ferrotungsten Rotterdam offer for $ 35-35.25 / kg tungsten, compared with a price decline before the $ 0.5 / kg.

The reason for the decline in prices is demand out of the doldrums, rarely traded, there is one important factor is: near the end of the year, do not hold stocks of businesses optimistic and want to dispose of the goods as soon as possible, so as to improve cash flow at the end of the year, it also contributed to the decline of overseas tungsten iron prices.


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How X-rays generate becomes a very important topic for researchers, as it will be much helpful for shielding it better.

Laboratory scale sources of X-rays draw a beam of electrons from the cathode of a vacuum tube. The beam is accelerated through several kilo-volts and focussed on to an anode. The anode is usually rotating to provide for  efficient distribution and dissipation of heat . The X-rays produced at the impact point are distributed over a wide angular range and cover a wide range of energies up to a maximum energy determined by the voltage at which the tube is operated.

In this way, X rays are generated when electrons undergo severe acceleration. This happen adventitiously in any electronic device that operates at several kilo-volt or more but it is a design feature of synchrotron and rotating anode vacuum tube X-ray generators.

Tungsten alloy material is one kind of suitable shielding for X-ray radiation, as its good radiation absorption ability and high density.

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