June 29, 2021

Tungsten ¨3 When the Tough Get Going

The China Syndrome Tungsten has shown some of the same dynamics that other specialty metals have experienced over recent decades.During the 1980s and the 1990s, China, with the world’s largest reserves and lowest cost of production, flooded the world market. This drove down the price of both APT and WO3 concentrates to below the production cost of most other Mining Drilling Tools producers. Amongst the distortions this produced was that APT prices, driven downwards by Chinese processors, were only marginally above the price of concentrates at about USD$50 per MTU.The distressed price in the world market quickly drove many tungsten mines and APT producers in the Americas, Asia and Europe out of business and led to their closure. Moreover, outside of China, exploration and mine development programs were quickly abandoned.However, the distressed market price for tungsten concentrates and its products began to change in 2003 and more markedly in 2004-2005 propelled by the rapid growth and emergence of the Chinese economy in the world marketplace. As in other metals the rapid growth of Chinese demand for tungsten products for its domestic market triggered a tightening of the availability outside of China which rock drill bits was coupled with the Chinese government’s policy curtailing mining projects and taxing the export of tungsten concentrates in order to conserve resources for future domestic needs. This led to a price surge in 2005 with the price of APT moving rapidly from below $80 to nearly $300 per metric tonne unit (MTU). This in turn sparked a recovery in Tungsten recycling, so the price stayed in the $250 range for the ensuing five years.However, with recycling at its max (37% of global supply in 2010 according to the USGS) and demand for Tungsten still high, the APT price went on a tear upwards to the $460 range.

After that high-water mark the price has been on a slide, briefly rebounding at times on the way down but now down to the level less than half the 2011/2 highs.Just as in Rare Earths and other specialty metals the Chinese government has indulged in curtailment of mining programs and was strongly “encouraging” downstream processing of concentrates to Rock Drilling Tool higher value added products such semi-finished and finished tungsten products.Roskill’s latest Tungsten survey commented that they believed primary tungsten supply will continue to be dominated by Chinese mine production in the years to 2018. However, the share of global supply which China provides is forecast to fall from 80% in 2013 to 78% in 2018, caused by an increase in production from mining operations in Vietnam, Australia and Europe.


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June 23, 2021

Large Tungsten Mine Discovered in East China

Geologists have discovered a large tungsten mine in Thread drill bits east China's Jiangxi Province, officials said.

More than 1 million tones of tungsten and associated copper have been found at the High Air Pressure Drill Bits mine in the Zhuxi mineral area of Fuliang County in the northeast part of the province, said Peng Zezhou, chief of the provincial geology and mineral resources exploration bureau.

The Ministry of Land and Resources confirmed the discovery on Wednesday on its 360 DTH hammer website.

A maximum depth of 449 meters of tungsten and 30 meters of associated copper in themine has been penetrated, said Peng.

The reserve explored is in the same province as the world's largest tungsten mine,which was found in Wuning County, Jiujiang City, Jiangxi. It holds tungsten reserves totaling 1.06 million tones.

Geologists said they expect to find more tungsten at the newly-discovered mine, which could oust the mine in Wuning County as the world's largest.


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June 21, 2021

Production and market of copper powder and copper alloy powder

In 1958, China began production experiments of electrolytic copper powder. They got success in the mid-1960s. At present, China's copper powder (FCu) production processes are electrolysis, atomization and the reduction method.

Production process is simple with small investment. 90% of the copper powders are based on the electrolytic production. Electrolysis current intensity high, the metal powder is deposited on the cathode, scraped off and then heated to soften Serve. Powder made from pure and irregular branches like. The high purity of the electrolytic production of copper powder, repressive and good, but the production of high energy consumption, thus the high cost of serious environmental dth hammer pollution.

Molten metal atomization will be pressed into the nozzle, compressed air, water or inert gas to disperse into tiny particles of metal beads, metal powder made of mostly spherical or teardrop-shaped. Atomization method is low cost, pollution advantages, can produce copper powder of low apparent density, but the higher technical requirements. Abroad from the 1960s began production of nickel powder atomization, the atomization oxidation reduction, referred to as the AOR method. China in recent years has begun to research this technology.

Reduction method is the use of a reducing gas such as hydrogen, carbon monoxide, metal compounds reduction into porous and loose clumps, and then grinding to serve. This legal system into a powder with irregular shape. The copper-based powder materials including electrolytic copper powder, low loose apparent density water atomized copper powder, copper alloy powder, oxide powder, nano-copper powder and spray with anti-oxidation of the six categories of imitation gold and copper alloy powder. Electrolytic copper powder pale rose red dendritic powder, easily oxidized in moist air, soluble in hot sulfuric acid or nitric acid. Widely used in diamond tools, powder metallurgy products, friction materials, carbon products, conductive ink. Low bulk density of water atomized copper powder pale rose red irregular powder. Mainly used in diamond tools, powder metallurgy parts, chemical catalysts, carbon brushes, friction materials and welding electrodes.

The copper alloy powder, bronze powder (FCu 663) and brass powder. The bronze powder is widely used in powder metallurgy oil bearing and diamond tools; brass powder is widely used for the sleeve material, diamond tools. Oxidation of the copper powder used as a paint and chemical reagents, ceramics, enamel pigments. Uniform particle size of nano-copper powder, ball shape, crystallinity, and good dispersion. Mainly used for manufacturing a multilayer ceramic capacitor terminal and internal electrode, the electronic components of electronic slurry.

Spraying antioxidant imitation gold copper alloy powder is mainly used for high-end decoration, adding surface coating, motorcycle, automobile surface coating, textiles, printing dyeing, ceramics arts crafts production and manufacturing of plastic composites fields. In recent years, high-grade building exterior wall and interior decorations have begun to use high-quality imitation gold and copper alloy powder. At the same time, influenced by increasingly stringent environmental requirements, the electroless copper plating and electroplating copper industry will gradually be replaced by sprayed copper alloy rock drill bits powder with high quality. Thus it opens up a very broad market prospects for products? applications.Source:http://www.mhcmp.com

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June 10, 2021

XXR Wheel £¿The Persuit Of Lightweight Wheel

For quality assertion, the wheels have been certified by the international standard on authorization of ISO 9002, QS 9002 & the Japanese VIA standard for testing. The wheels are famous in the market for "tuner" designs & applications for the older, inflexible to fit vehicles. The various color combinations are available and staggered designs to fit everyone?s need.

XXR Wheels is designed wheels for original tools & custom rims for aftermarket automotive applications. If Tuner you are looking for the tuner wheels than XXR Wheels is the one on the top of your list. Its wheels are available in different car rims sizing from 15 inch, 16 inch, and 17 inch all the way to 22 inch for passenger cars? & a few for SUVs or Light Trucks? & finishes in chrome, black, silver or red finishes. An Xxr wheel is the one from the few companies who do their designing in the European Style and the European Trends. They carry chrome rims & black rims from XXR Wheels with wholesale wheels discount prices to you. If you are looking for top quality tuners rims, XXR Rims from Big Brand.

XXR wheels approximately manufacture more than 2.4 million rims a year. Its models such as the XXR 522 had a unique feature of tuner wheel, a striking con-caving design. Further model such as the XXR 518 is a lightweight champion. The 518 rock drill bits is the lightest and finest wheels in this industry. It had introduced some new wheels in 2011 which are out in the markets for purchase. The other wheel such as 518 is a split 5 spoke wheel which is available in 4 or 5 lug fitments for all the vehicles. It is Also offered in Matte Black or Gold. The XXR 510 wheel has been redesigned completely , XXR 507 wheels now got? a new put in option, &. XXR 962 Wheels are being designedwith a the new matte black finish along with red stripe. They are out in the market for wide offset JDM wheels. The XXR513, XXR002 & XXR 501 with limited edition color. From the 15 inch low offset 513 to the staggered style 006 & the deep lip VIP 504.
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