Zhengzhou Comprehensive The scientists have found a new type of tungsten ore in the rock and mineral identification process. The study determined that the ore containing rare earths, tungsten ore elements in the form of ion adsorption occurs in the main carrier mineral containing barium psilomelane .

After identification, the ore grade of the total rare earth oxide 0.23%, W and rare earth elements are enriched in barium-containing Eu psilomelane , and the uniform distribution. Which , Eu2O3 content of between 0.34% ~ 0.47%, W2O3 content of between 3.2% to 4.2 %.

Deposit of rare earth industry mainly endogenous Bastnaesite and monazite ores , exogenous ion adsorption type ( weathering crust ) and sedimentary placer ( monazite type ) ore. Zhengzhou integrated with the newly discovered rare earth tungsten ore mainly occurs in sandstone fracture zone in the case of table generation due to the detailed causes of further study. The researchers said the mine 's ore-forming elements specific combinations and unique mode of occurrence was first discovered in the country is worthy of further study.

According to the Principal revealed that this type of tungsten ore reserves larger prospecting better. The discovery , for improving the utilization of the value of the tungsten ore is significant. This is a major contribution to the Mineral Exploration Zhengzhou comprehensive appraisal made ​​by the rock .


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Today, the mainstream price of tungsten concentrate temporarily stabilized, but buyers continue to lower prices , currently above 60 degrees tungsten ore market has now low Inquiry 1.4 yuan / kWh , the price is more concentrated near the cost of production businesses have said the current price earnings is very low, negative shipments , leading market purchases although active, but turnover continued stalemate between old customers only small quantities traded, not the old customers to buy them arrive.

Ukrainian analysts believe that despite the war, the country to stimulate domestic demand and so favorable macro tungsten market , but continued to support the lack of real demand , turnover is expected before May plight die hard , short-term weakness in the price of tungsten , or watching the market sentiment will continue strong.


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Tungsten concentrate market remains in the doldrums , the market waiting to see atmosphere more intense , more concentrated near the cost price , manufacturing businesses have indicated that the current price of profit is very low, shipments negative , so the procurement activity , but the turnover continued stalemate is expected before May turnover dilemma die hard.

Macro level, one -quarter industrial profits up by 10.1% in March and medium-sized steel enterprises losses ; many ministries started verifiable elimination of backward production capacity , thorough investigation of illegal enterprises for many years ; this year's national urban rail investment will reach 220 billion .


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Tungsten is extremely scarce and irreplaceable strategic resource , but also the national economy and national defense irreplaceable foundation of modern materials and strategic resources , manufacturing tungsten carbide known as "dental industry ," Carbide is widely used in military , areas of aerospace, mechanical processing , metallurgy, oil drilling , mining tools, electronic communications, construction , etc., is the key material tungsten lighting , electronics and other industries. In these applications, has not yet found a direct substitute for tungsten.

Currently, only the world's total proven reserves of tungsten 2.898 million tons , is extremely scarce resources , more than 20 kinds of the world's known tungsten minerals , industrial value only scheelite and wolframite are two, are of high quality wolframite tungsten ore, scheelite are refractory ores . China 's tungsten resources abundant , accounting for nearly 70% of the world 's proven reserves of tungsten mineral resources , ranking first in the world .

2010-2013 , equivalent to the amount of tungsten concentrate production increased year by year , and reached its highest level in 2013 , tungsten concentrate production was 138,000 tons .

Through the analysis of primary tungsten and "Twelfth Five Year Plan" according to the analysis of waste tungsten tungsten industry, we assume that the future of native producers of tungsten in tungsten concentrate production quota increase of 1% per year , the 2017 Chinese tungsten concentrate equivalent to the amount of production will reach 143,600 tons .

Chinese tungsten ore market research report analyzes mentioned in 2014-2017 , has been the domestic and international market demand for tungsten basically showing steady growth in the state . Although the impact of the financial crisis is not over , the European sovereign debt crisis is still spreading and so the constraint of global economic development, but the trend of global economic growth will continue, tungsten demand will continue to grow in 2015 , total global demand may up to 83000t, with an average annual growth rate of 4%.


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April 25, 2014 tungsten reference price of all varieties :

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W-Cu composite material is a high melting point , high conductivity and high density of tungsten and a low coefficient of expansion , high thermal conductivity copper composition , both the advantages of both can , having high thermal conductivity properties such as low expansion coefficient , good high temperature strength and arc erosion resistant properties. As early as in the 1930s , tungsten -copper composite material due to its good compressive strength and resistance to electrical ablation performance, high-voltage electrical switches and other industrial sectors has been widely applied . Into the sixties, tungsten -copper composite material gradually gained in the field of resistance welding electrodes , aerospace and high-temperature parts. Since then, with gradually improved preparation technology , electronic packaging and in the nineties as a heat sink material began in the field of LSI and high-power electronic devices such as access to a wide range of applications . Into the 21st century, tungsten -copper composite material is used as cover material HEAT medicine , materials and target missile nozzle caused concern in the military and high-tech fields .

Now , tungsten -copper composite material due to its good electrical conductivity , thermal conductivity and excellent thermal stability , has become a high-power microwave devices and ultra large scale integrated circuit substrates , embedded blocks , essential key material connections and cooling components , etc. its high thermal conductivity , high thermal stability and good formability near net sizes , can improve the use of power microelectronic devices , is conducive to miniaturization of devices and sophisticated development. Low thermal expansion coefficient and the thermal expansion coefficient of tungsten-copper composite material adjustability , enabling connection to match its semiconductor materials and microelectronic devices with silicon , gallium arsenide and other useful ceramic materials , to avoid thermal fatigue damage caused by thermal stress broaden the tungsten -copper composite material in the field of microelectronics applications.

Tungsten -copper composite material due to its high electrical conductivity, thermal conductivity, excellent arc resistance , anti-friction and thermal stability , have already obtained important applications in rail guns , rockets and missile nozzle throat rudder and other high-temperature gas fields . In recent years , tungsten -copper composite material is gradually being used as cover material HEAT drug , its high density , high sound speed and good mechanical properties , help to improve HEAT Sunder power. Europe and other developed countries, studies show that, compared with the pure copper HEAT drug cover , tungsten -copper composite material cover the drug in the triple bombing high caliber of conditions, the armor depth can be increased by 30 %. With the continuous development of high-performance tungsten-copper composite materials preparation technology and applied research , and applications in the military industry will be more broad.

Tungsten-copper composite powder metallurgy materials is an important one of the widely used method for preparing a " Infiltration law ." The method is a mixture of tungsten powder, tungsten powder and a small amount of copper powder or pressed into the blank , by the pre- firing temperature for preparing a porous tungsten skeleton, and then the molten metallic copper and a capillary force to flow along the gap gradually tungsten particles fill skeleton obtained tungsten -copper composite material. Preparation of material dissolved infiltration with high density, good sintering properties , electrical conductivity, thermal conductivity , etc. ideal .

Due to the large gap between the melting point of tungsten and copper and immiscible , were prepared by powder metallurgy method of tungsten-copper composite material is often not high density , usually resulting in a conductive material , inadequate thermal and mechanical properties. In order to continue to meet the new requirements proposed industrial development , preparation techniques tungsten-copper composite task facing major reforms . In recent years , highly dispersed , the rapid development of nano- powder preparation techniques , new pressing and sintering technology , the performance of tungsten-copper composite gained further improved, effective broaden its application in high-tech fields.


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Tungsten market : the market with ample supply of raw materials and scrap tungsten inquiry there , but the turnover has continued to light , tungsten, iron market demand is low, the downstream business procurement initiative is low, less market inquiry , coupled with the raw material of tungsten concentrate market downward , tungsten iron spot transactions also showed a stalemate , and the market is slightly weaker . Mainly because of the buyer to take advantage of weaker market outlook and weighed on prices ; seller tungsten market is still holding on long-term expectations and will ship is not strong. Both sides continued stalemate on the issue price , in the absence of external force , expected short-term dilemma is difficult to break the stalemate .

Molybdenum market : External molybdenum prices fell slightly , but the business mentality better, post-market is still strong side . Molybdenum domestic goods market continued to maintain silence, less early trading atmosphere . Foreign businesses not cheap , price stability, hold stocks wait and see. Admission is about to move steel , molybdenum market or expected short-term maintenance of stability persist run .

Today, the mainstream price of tungsten scrap market stabilize, ample supply , distribution of funds is tight . Because of funding constraints, the cash redemption price is down, the market price difference is widening, however, reluctant to hold stocks cheap goods to go , spot market transactions are not very active, expected short-term risk of tungsten steel scrap prices are still slightly downward .

It is understood by the price of cobalt and tungsten mine while lower impact materials , scrap tungsten drill mainstream has dropped 190 yuan / kg, and even some of the cash transaction price pressure as low as 185,186 yuan / kg, sold more than a lower price , but less volume .


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Ferrotungsten sluggish market demand , the downstream business procurement initiative is low, less market inquiry , coupled with the raw material of tungsten concentrate market down, tungsten, iron spot transactions also showed a stalemate , and the market is slightly weaker . However, due to cost and other support , most businesses offer steady, only a small part of the business cash turnover slightly lower.

It is understood that at present , 70 ferrotungsten denominated promissory offer more concentrated in the 180,000 yuan / ton, cash transactions at 178,000 yuan / ton in the vicinity , but the market is not very abundant funds , cash transactions can be as low as 176,000 yuan part / ton .

Currently the market because of the tungsten market trend is not clear , tungsten, iron merchants more worried about the market outlook , some manufacturers even prudent to temporarily offer , watching the market , analyze expected shortly ferrotungsten market transactions or continuing weak market or steady weakening .


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Tungsten market with ample supply of raw materials and scrap tungsten inquiry there , but the turnover has continued to light, mainly because of the buyer to take advantage of short-term market outlook is weaker and suppress the price , the seller still hold the city for long-term tungsten and shipments will not expect the two sides prices continued stalemate on the issue is expected if no external force, the plight of the short-term is difficult to break the stalemate .

Macro level, new environmental law implemented on January 1 next year , illegal sewage daily fine not capped ; draft real estate tax legislation or cocoon year , the parties are intensive research ; RMB cross-border settlement 5 -year cumulative 11.8 trillion .


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