Tungsten market : tungsten market was stable weak, thinly traded tungsten concentrate prices changed little, holding cargo ship will is not strong , and some traders and downstream tungsten smelters are actively bargain hunters. But the big difference in price between buyers and sellers , turnover continued stalemate , expected this week, or to stabilize the main tungsten concentrate prices . Ferrotungsten deserted market , demand remained weak , little inquiry , shipping difficulties , lack of confidence in the business outlook , operating enthusiasm is not high , short-term market or continue ferrotungsten partial weak run .

Ferrotungsten deserted market , demand remained weak , little inquiry , shipping difficulties , lack of confidence in the business outlook , operating enthusiasm is not high , short-term market or continue ferrotungsten partial weak run . Small tungsten iron smelter home production or price cuts , a large tungsten iron manufacturers offer strong, but also strict inventory control , order production and orders for less .

With the downturn in raw material prices to weaken , and the desirability of downstream tungsten iron , tungsten, iron prices in the market more show confusion, 70 ferrotungsten spread widely. It is understood Hebei and other places outside the furnace iron production of 70 current price of tungsten concentrate at 16.5-16.7 yuan / ton, this 70 tungsten iron content in general is about 70 or a little handicap ; Dan Cheng Xin and other medium-sized tungsten iron smelter home, 70 Quotes are concentrated in the 17.2-17.8 yuan / ton , Nissan up to 6 tons , less turnover and strict control of inventory ; big hit Hunan smelter and large firm quotes at 180,000 yuan / ton, but the inquiry turnover not much.


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Weekly opening , tungsten concentrate prices continue to hold steady on the sidelines. Tungsten scrap market remains stable trend, the market can still be traded , where demand is relatively good blade . As the overall amount of resources much , so relatively strong business mentality , the price is not strong . Tungsten scrap market is expected to more than short-term steady trend will continue .

Tungsten scrap prices continue to hold steady . Currently scrap tungsten drill focused on the purchase price excluding tax mainstream 185-188 yuan / kg, imported scrap tungsten blade 176-180 yuan / kg, domestic waste tungsten blade 167-170 yuan / kg, scrap wire drawing dies 178-181 yuan / kg waste pure tungsten 213-221 yuan / kg. W ≥ 70% concentrated in the purchase price of the grinding material mainstream 1.75-1.8 yuan / kWh ; 50%


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City tungsten weak overall market steady run. Tungsten concentrate market volume was light, commercial shipping cargo hold is not strong, some traders and downstream smelters bargain hunters, but a larger spread between buyers and sellers, and transactions have deadlocked, the mainstream market is expected to be short-tungsten market steady run.

Macro, M2 growth rate than expected, to fine-tune monetary policy directed into the "window period"; yuan central parity three-day losing streak hit eight-month low; Xi Jinping clear economic development to adapt to the new normal, tolerance economic slowdown.


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May 12, 2014 tungsten reference price of all varieties :

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In recent years , the country carbide rod production continues to grow, but with the growing demand , the market appeared to outstrip supply, its quality demand is also facing difficulties . Currently detection of commonly used carbide rod manually , human consumption more stable test results , automated test equipment manufacturers increasingly favored by the majority .

According to related statistics , carbide rods with high hardness, high wear resistance , high strength, resistance to bending , long tool life a series of excellent performance. Carbide drill and tool bars are produced blank , mainly by powder extrusion molding process. Is now widely used in the production of drill bits, automotive tools, printed circuit board tools, engine tools, the overall end mills, reamers overall , chisel , etc., but also can make punch, mandrel , top and piercing tools.

With the surge in demand , ultra-fine grain carbide rods have been more widely adopted. In the field of high-speed cutting , because the tool security, high standard reliability , durability requirements , solid carbide internal and surface quality requirements are more stringent. With carbide rods , especially ultrafine carbide intrinsic quality continues to improve, the quality of the overall situation carbide surface more and more attention .

It is reported that a domestic company offers a large variety of solid carbide cutting tools such as milling cutters , drill, chisel , gauge, plug gauge ) with carbide rods, there are a variety of materials to choose from , the maximum hardness can reach 94.5 (HRA ) processed titanium and other difficult to machine materials. While providing a variety of punch needle , punch carbide rods . As can be seen , the use of carbide rods quite extensive , market prospects are very impressive. The face of growing demand for carbide rods year , the traditional testing methods can not be fast , accurate, effective detection , so many manufacturers of automatic test equipment needs more urgent .


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Sandvik Coromant has been awarded U.S. companies and Okuma THINC Partner Program Partner of the Year title, Okuma America located in Charlotte, North Carolina , is one of the world's leading CNC machine tool manufacturer. Okuma dealer poll by Sandvik Coromant THINC stand out in more than 40 members .

It is reported that , excellent customer service and overall commitment for productivity Sandvik Coromant is the main reason can be among the best . Respond quickly to customer needs, participation and involvement of market activity initiated by the dealer , has also been mentioned is this special recognition considerations.

" Sandvik Coromant is a highly respected cutting tools and machining solutions provider , in 2013 they confirmed this on top of all the big cuddle dealer 's overall rankings. Congratulations Sandvik Coromant won first place in our most valuable partners , "Jeff Estes THINC program co- director , said .


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Recently, the National tungsten and rare earth products Quality Supervision and Inspection Center of China National Accreditation Board for Conformity Assessment (CNAS) supervision and assessment of the expert review group extended term on-site assessment . The expert review group members according to CNAS-CL01: 2006 " Testing and Calibration Laboratory Accreditation Standards " recognized rules and related documents, by listening to the reports , access to quality management system documentation , technical files , the ability to verify records and field questions , etc., right center equipment, environmental conditions , system operation , field test, and construction personnel to conduct on-site assessment .

The review added 16 test items , related to the 18 standards, including gadolinium alloys , thulium , ytterbium , lutetium and cobalt concentrate purity , the center has reached capacity on the level above international mutual recognition . The assessment of the project and more heavy task, is one of the centers of mass of the assessment activities by the central leadership attention. Various functional departments in close coordination and cooperation , combined , pre- Greets prepared, making the assessment carried out smoothly, protect the recognition accuracy of the results , efficiency .


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Automatic loading machine type 05 tanks equipped with reliable performance, artillery fire up to 12 rounds / minute. The use of tungsten APFSDS, can be in 2000 meters from the breakdown of the 1950 mm armour, and armour piercing projectile using special tungsten alloy, the same distance from the penetration capacity of more than 1600 mm, the gun could be fired our newly developed 155 mm caliber cannon launched guided missile, the the missile has a maximum range of 17.8 km, the maximum penetration depth of 900 mm, 12.7 mm and three secondary weapons: pipe automatic machine gun a, [800 rounds of ammunition]; 7.62 mm parallel machine gun ammunition, [3500]; projectile base 50; on each side of the turret with 7 92MM smoke launcher, plans to install ECS electromagnetic camouflage system.

05 tanks in addition to gun outside has a strong air defense missile and laser weapons, is the army of the fourth generation of independent tank, our army as I armored forces super ace, known as the world's first tank performance. The importance of remarkable.

05 type tank fighting the whole weight of 55 tons, the forward a total length of 10 meters, 7.6 meters long, 3.5 meters wide, 2.37 meters high, the maximum road speed of 100 km / h, 0-60 km accelerated time is 10 seconds. Liberation Army type 05 super battle tanks, with a diameter of 155 mm for the domestic high bore pressure smoothbore tank gun, it is equipped with three kinds of shells, respectively, is a new type of APFSDS, model penetration projectile, gun launched missile. Emission of APFSDS when the muzzle velocity of 1950 M / sec, direct distance of 3200 meters, the homogeneous armor piercing thickness more than 1900 mm, emitting heat when the muzzle velocity of 1500 m / s.

Our army main ace: type 05 main battle tank

Fire control system of type 05 tank equipped with advanced, fifth generation fighter "eye" bi stable system, can make accurate firing on the moving target speed, shooting 95%, night vision goggles with independent research and development, can be irradiated 0.1-8 kilometers away from the target, high definition.

05 type tank public appearance, its technical performance is sure to be a focus of many army fan friends speculate, for Chinese type 2005 main battle tanks, correctly positioned in the world in the fourth generation main battle tank should also become the topic of discussion. Fire protection, mobility, from three aspects, Chinese type 2005 main battle tanks, the tanks fighting the whole weight of 55 tons, the forward a total length of 10 meters, 7.6 meters long, 3.5 meters wide, 2.37 meters high, the maximum road speed 100 km / h. The new engine China 2005 type change, the maximum speed of 80 km / hour cross-country.


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As we all know, depleted uranium alloy materials and tungsten alloy materials are manufacturing penetrators ideal materials at present, but looked from the world scope, tungsten alloy material both range applications or application state are relatively depleted uranium alloy is more extensive and widespread, especially in the Western European countries is mainly the development of tungsten alloy materials (British, law except). How should we develop for the two kinds of materials? In the author's opinion, the answer to this question can never escape from the national conditions and the military, by starting from the analysis of sources of raw materials, production cost, manufacturability and two kinds of material properties, compared to arrive at a conclusion.

Military material must be based on domestic rich and reliable sources of supply, this is our policy. From the current and expected future, tungsten alloy materials and depleted uranium alloy materials in our country have reliable sources. Tungsten both reserves or annual output of our country occupy the first place in the world, depleted uranium material is waste to produce nuclear weapons and nuclear fuel, at present our country also has a lot of, and no other use, can saying is the reuse of waste. Therefore, a reliable source of tungsten alloy materials and depleted uranium alloy materials in our country.

From the processing technology, both tungsten or depleted uranium alloy, at present our country in mining, smelting, processing and manufacturing technology level are more mature, compared with foreign tungsten alloy and properties can be depleted uranium alloy of these two materials. It also shows that the two kinds of materials in our country have the certain technology base, and the two kinds of materials exist at the same time continue to improve, the necessity and possibility of improvement. From a cost point of view, although the depleted uranium material cost is low, but the said materials processing, waste disposal, protection and high test cost, the final result is, tungsten and depleted uranium alloy two penetrators cost basic.

The U.S. currently almost all caliber gun and cannon part with depleted uranium penetrators, especially is equipped with 120 mm projectile by depleted uranium materials. Under its impetus, Britain and France also for domestic equipment main battle tank equipped with depleted uranium penetrators, while the British Lu Jun despite domestic opposition, repeatedly stressed: "Challenger" main battle tanks will never cancel the depleted uranium penetrator.

Depleted uranium alloy penetrators is made after the upgrade armor elastic energy trend of development, but not the only, because it involves a lot of trade-offs problem. So our country need to development of depleted uranium penetrator? In this issue, the author still emphasizes the problem of trade-offs. But in general, on the basis of the author's personal opinion, if it is to use depleted uranium penetrators to completely replace tungsten alloy penetrator words, will do more harm than good. This is because, at present, our army is not depleted uranium dedicated for military training with the projectile range, so the general in the army exercises and training can not be used; if long-term not encountered war, depleted uranium storage without and expired penetrator cannot be used as a useful metal back and forth, only be returned to the original production factory processing, not only the recovery of economic value, but is the addition of waste disposal costs. From these aspects, we should not be a large number of production and reserves of depleted uranium alloy penetrators.

But on the other hand, we must consider the development potential of depleted uranium penetrator and its unique advantages of target function. So, we are difficult to develop the depleted uranium alloy penetrator issues should adopt a positive and prudent attitude. The so-called positive, is to focus on certain energy and human choice (for example can choose the large calibre gun as the key point, such as 105, 125, or even pre research of larger caliber APDs) to depleted uranium alloy we penetrators up. Technically, this should not be what problem for us. The process of projectile in depleted uranium alloy development progress caliber in, to understand and to further tap the comprehensive performance of depleted uranium alloy penetrator, and on the basis of the accumulation of depleted uranium alloy penetrators to production, test, protection, storage and use of experience. The so-called prudent, refers to the penetrator performance in not fully understanding the depleted uranium alloy case, not rashly indiscriminately to all the attention. A more sensible approach is the development should be the principle of tungsten alloy materials mainly, supplemented by depleted uranium alloy materials, continue to dig the tungsten alloy penetrator potential on the one hand, on the one hand through the trial and small batch of continuous accumulation and rich manufacturing depleted uranium alloy penetrator experience. Needs to be pointed out is, the future research emphasis of depleted uranium alloys should be to further improve the metallurgical properties and development of depleted uranium alloy new composite materials (such as uranium alloy tungsten uranium alloy), make it more adapted to the penetrator large slenderness ratio requirements. At the same time, the structure design of projectile to make full use of this characteristic, the depleted uranium alloy penetrator power of tungsten heavy alloys was significantly better than that of the projectile, solve the tungsten alloy penetrator cannot deal with the target, but also the only way to make the depleted uranium penetrator with real life force in the nation, if able to do this point, in order to deal with the war in the future, can the adverse development of depleted uranium alloy mentioned penetrators when the side relegated to a secondary position, or even negligible.

 

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