China carbide tooling has been serialized and standardized
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- Category: Tungsten's News
- Published on Friday, 06 June 2014 10:09
- Written by HJF
- Hits: 1805
Carbide Die is ten times the life of steel and even a few times, carbide die only high hardness, high strength, corrosion resistance, high temperature resistance and low coefficient of expansion, usually cobalt-tungsten carbide. Carbide since the beginning of the 1920s, with its "widia" like the name of the diamond market since the German scientist by the invention, and the first production of tungsten tensile modulus get industrial applications, replacing the current price of expensive diamond drawing die.
Our Carbide started late, but rapid development. According to reports, at present, carbide die basically serialization and standardization. In recent years the development of the situation, the theoretical study of carbide tooling and design has a deeper and more science, applied more widely.
In the development of new alloy materials on behalf of a few years ago to drill for the hot iron and nickel. Metallurgical materials such as Hunan province developed corresponds to YG, YG20, YG25 the strength and toughness of cemented carbide, received good results in for cold heading die, cold extrusion die and so on. Tianjin Institute on behalf of the iron-nickel carbide drill also developed a considerable YG1520 carbide die materials, standard parts in the roll forging, cold heading steel ball fairly with regard YG20 effect.
In recent years, new research is popular fine grain, ultra-fine grain, and even gradient nanocrystalline carbide and carbide. Another gradient cemented carbide composition gradient, gradient structure, in addition to the molten metal is also useful to produce osmotic gradient cemented carbide processing methods, such as the top of the gradient cemented carbide hammer.
Fine grain and ultrafine grain carbide also available, such as fine-grained YGS drawing dies while drawing <φlmm wire, is three times the normal drawing mode.
In addition, cast-inlaid carbide hot die, and achieved good results in terms of rolling and wire rod rolling.
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June guidance stabilized stabilized stabilized tungsten City will enter a consolidation phase
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- Category: Tungsten's News
- Published on Friday, 06 June 2014 10:02
- Written by HJF
- Hits: 2069
Tungsten Association, Minmetals latest guidance stabilized stabilized in June, and May were flat, wolframite still at 110,000 yuan / ton, which is expected to boost business confidence to a certain extent, also means that the tungsten City will enter a phase of stabilization and consolidation.
Macro, IMF cut China's economic growth is expected, but said there is still confidence in the prospects of China; former institutional investment growth forecast in May over 17%; European Central Bank is now the first negative interest rates, the lowest ever dominant interest.
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Tungsten ore market rise slightly, the overall turnover is still light
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- Category: Tungsten's News
- Published on Thursday, 05 June 2014 11:57
- Written by HJF
- Hits: 1729
Tungsten ore market due to the recent rise slightly , cargo operators , such as reluctance to sell more emotionally rich, this week tungsten concentrate prices to rise to about 0.01 yuan per kilowatt / degrees again , the mainstream focus of tungsten concentrate more than 60 degrees in 1.45 yuan / kWh, and the market scheelite concentrate supply more high-grade , high impurity content requirements are not many sources of wolframite , tungsten, iron smelters purchase a large number of high -quality wolframite difficulty.
Currently the overall market turnover remained thin , downstream tungsten smelter is also more demand procurement cargo operators offer more reluctant to sell at 107,000 yuan / ton in the vicinity , or even more, purchase inquiry mainstream but still concentrated in 10.4-10.5 yuan / ton, trading Both sides continued stalemate. Supported by a number of expected orders , procurement of raw materials , or there is some demand for tungsten concentrate prices in early June or stable firm.
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British media: China is ready to eliminate tariffs and quota restrictions on exports of rare earths
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- Category: Tungsten's News
- Published on Friday, 06 June 2014 08:46
- Written by HJF
- Hits: 2029
According to the British Reuters reported on June 4, China's rare earth export tariffs and quota policy 2014 was earlier WTO (WTO) ruling, saying that these measures are discriminatory. According to "sources," said China is ready to eliminate tariffs and quotas on exports of rare earths controversial.
Reported that comply with WTO rules approach would be a technical adjustment of the Chinese government, but China hopes to improve pricing power and increase the share of downstream industries rare long-term plan has not changed.
Tungsten scrap prices temporarily stable part of the business sentiment stockpile
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- Category: Tungsten's News
- Published on Thursday, 05 June 2014 11:53
- Written by HJF
- Hits: 1849
Tungsten scrap prices continue steady mainstream . Scrap market price of tungsten slight gap around the drill , part of the eastern and southern markets not included in the trading price of 184-185 yuan mainstream focus / kg, but other parts of northern Hebei market remained at 188-190 yuan / kg, a relatively strong business mentality . Waste and scrap tungsten tungsten blade materials market is still some transactions , the downstream demand procurement , businesses do not intend to take the goods cheap , and the prices relatively stable.
Recent signs of tungsten concentrate prices have to rise , scrap tungsten business confidence also increases, part of the breeding stockpile intentions, but the overall atmosphere is still waiting to see darker . Minmetals and tungsten co- June guidance forthcoming before ore price rally is not yet clear , short-term waste tungsten market is expected to continue steady run multiple .
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