What is tungsten copper alloy block

Tungsten copper alloy block is an alloy that is made by pressing tungsten or tungsten carbide, sintering the pressed tungsten at a high temperature, and then infiltrating it with copper. Sintering is a metallurgic process by which a metallic powder is made into a coherent mass by heating without melting.

The physical properties of both tungsten and copper make them not mutually soluble, meaning that one cannot be combined with the other, similar to the way oil and water will not mix. The alloy is made by dispersing the particles of one metal into a matrix or crystallized pattern of another. This makes tungsten copper's "micro-structure" or molecular shape that of a metal matrix composite and not of a true alloy.

What is tungsten copper alloy rod

Tungsten copper alloy rod is a combination of tungsten and copper. Tungsten copper alloy rod also called copper tungsten alloy rod. Tungsten copper alloy rod combines the excellent properties of tungsten and copper, such as high density, high thermal conductivity, strength and rigidity, low electric resistivity and thermal expansion coefficient, electric-erosion resistance, etc. For their excellent properties, tungsten copper alloy rods are widely used as switch contacts of high voltage electrical equipment, throat gasket of rocket, electrodes in electric spark and EDM etc.
Tungsten copper alloy is the composite of tungsten and copper, which own the excellent performances of tungsten and copper, such as heat-resistant, ablate-resistant, high-intensity, excellent thermal and electrical conductivity. Tungsten copper alloy is easy to be machined. Tungsten copper alloy is used widely in such industries as engine, electrical power, electron, metallurgy, spaceflight and aviation.

Tungsten Copper Alloy Rod for Welding Electrode

Tungsten copper alloy rod, a combination of the advantages of tungsten and copper, high temperature resistance, electric arc ablation, high intensity, than the major, conductive, thermal conductivity, and ease of machining, and it has features such as cold sweating, as with tungsten’s high hardness, high melting point, anti-adhesion characteristics, often used to do welding electrode. Tungsten copper alloy rod combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine.

Tungsten copper is widely used as high-pressure, super-hydraulic switch and circuit breaker contact, protection ring for electric upsetting anvil block of material, conductive arc welding, plasma cutting nozzles, welding machines, welding head for welding , roll welding wheels, electrode and the point of sealing gas Mao spark electrodes, spot welding, butt welding materials.

How Tungsten Copper Competes in Global Markets

Introduction to Global Tungsten Copper Material Consumption

In CY 2013 Paumanok Publications, Inc. estimates that approximately four million pounds (avoirdupois weight) of tantalum materials will be consumed in the global market, a low point in both the supply and demand for this unique and important metal. At the point of sale, more than half of the tantalite is converted into engineered powder, while the majority of the remainder is sold as metallurgical products and a small amount is consumed in fine chemicals for laboratory and special industrial usage (according to Paumanok estimates).

Competition Among Industries for Tungsten Copper Metal

Competition for tantalum by industry can be intense because of its narrow supply chain, of the four million pounds consumed in 2013, about 50% of demand will be dictated by the electronics industry; primarily in the form of anode for capacitor and in the form of semiconductor targets which are sputtered to form a diffusion layer for use in the semiconductor manufacturing process. The remaining 50% of tantalum demand comes from industries that are niche and fragmented but collectively quite significant; and include alloy additives, industrial processing, cemented carbides, fine chemicals and some additional specialty product lines.

The Challenging Supply Chain

Over the past 36 months, key hard and soft rock mining operations for tantalite have been either idled or permanently closed in Australia, Canada, Mozambique and Ethiopia; leaving the majority of demand to be satisfied by artisanal sources in South America and Central Africa; from recycled metal or from existing stockpiles throughout the supply chain. This scenario creates a balanced supply chain, only in weak economic conditions, however, any sudden upturn in the global economy, an upturn impacting both the professional electronics markets and the metallurgical end-use segments, would place a strain on the supply chain, and upset the delicate supply/demand balance currently in place. Any supply chain disruption resulting from an increase in demand from an improving global economy would create competition for tantalum among the following end-use market segments.

Health Risk from High Tungsten Copper Levels

A study conducted by scientists at the University of Exeter in the UK suggests that high levels of tungsten in the body could double the risk of suffering a stroke.

Published in the open-access journal PLOS ONE, the research used data from the US based National Health and Nutrition Examination Survey, analysing information for 8614 participants aged between 18 and 74 over a 12 year period.

Higher tungsten levels were found to be strongly associated with an increase in the prevalence of stroke, independent of typical risk factors. The findings show that tungsten could be a significant risk factor for stroke in people under the age of 50.

Recent years have seen a significant increase in the demand and supply of tungsten, which is commonly used in consumer products such as mobile phones and computers, as well as a number of industrial and military products. During its production, small amounts of the metal can be deposited in the environment, eventually making their way into water systems and onto agricultural land. 

"Whilst currently very low, human exposure to tungsten is set to increase,” said lead author of the research, Dr Jessica Tyrrell, of the University of Exeter medical school's European Centre for Environment and Human Health.

Copper tungsten projects in Tasmania

Elementos is now set to advance exploration activities in Tasmania, with a placement to strategic investors priced at $0.02, which will raise $1.3 million.
The funds will be allocated to the Cleveland tin-copper and tungsten projects, which includes the environmental permitting process which is scheduled to be completed in December 2013 for the mine de-watering and tailings retreatment project.
The placement will also allow for the Pre-Feasibility Study to redevelop the underground tin-copper mine, and acquisition payments for the remaining 50% interest in the Cleveland project exploration license.
The Cleveland project area covers the northern margins and metamorphic aureole of the Meredith Granite, which is part of a suite of Devonian granites which are associated with numerous world class tin deposits in the province.
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Resources makes new tungsten copper discoveries at Jervois

KGL Resources has intersected significant widths of near-surface copper mineralisation from exploration drilling at the Jervois copper-silver-gold project in the Northern Territory.

KGL Resources is aiming to increase the overall scale of the potential multi-metal mining project at Jervois as part of a Pre-Feasibility Study currently being undertaken.

The latest discoveries were made at the Rockface and Morley prospects.

Highlights from Rockface include: 9 metres at 1.21% copper, 4.1g/t silver, 0.03g/t gold from 105 metres; and - 24 metres at 1.47% copper, 3.5g/t silver, 0.04g/t gold from 160 metres.

The Rockface results are very significant in that the intersections are wide, near surface and between two large chargeability anomalies. Mineralisation is outcropping at surface.

Importantly, mineralisation remains open at depth and along strike.

The 2,000 metre drilling campaign intersected copper at the targeted Rockface and Morley Prospects, with the results including significant high grade, near surface intervals and the presence of copper in what is a 2 kilometre long IP anomaly.

Jervois current hosts an Indicated and Inferred Resource of 13.5 million tonnes at 1.3% copper and 25.8g/t silver for 170,415 tonnes copper and 11.6 million ounces silver at a (0.5% copper cutoff), and 69,000 ounces gold, 26,000 tonnes lead and 22,000 tonnes zinc.

Simon Milroy, managing director

“We are delighted with the first results from our exploration program at Jervois, focusing on previously undrilled targets Rockface and Morley.

"The results justify our strategy of seeking to increase the already substantial Resource base at Jervois for the current Feasibility Studies."

KGL is now preparing further drilling to follow-up along strike both to the east and west of the recent intersections, with the program to also target the strong IP anomaly located on strike and 200 metres east to the recent intersections.

Morley

Two holes were drilled at Central Morley to test for mineralisation associated with the recently identified IP anomaly.

Hole KJC002 was the shallower of two holes drilled in the central portion of Morley that intersected: 2 metres at 0.96% copper, 3g/t silver, 0.02g/t gold from 57 metres. Further down this hole at the 77 metre mark, a 2 metre wide zone of tungsten mineralisation was intersected at 0.55% tungsten.

Adding further interest to Jervois, historical drilling at the project have intersected zones of tungsten mineralisation that are often associated with the copper mineralisation and the potential of tungsten to generate additional by-products is being assessed as part of the Pre-Feasibility Study.

Analysis

KGL Resources is currently trading at close to cash-backing, with a market cap. of just $12 million and cash of $10.6 million at the end of September.

A sale of the Murchison gold project, currently on care and maintenance, is an asset with a defined gold resource and valution which would further increase the company’s cash reserves and underpin its under-valuation.

Which is underscored by the resource at Jervois which hosts an Indicated and Inferred Resource of 170,415 tonnes copper, 11.6 million ounces silver 69,000 ounces gold, 26,000 tonnes lead and 22,000 tonnes zinc.

The resource can only increase as the company continues to intersect broad zones of plus 1% copper mineralisation.

In terms of catalysts, KGL is working toward completing the Pre-Feasibility Study in the first half of 2014, which subject to the result, will be followed by a full Feasibility Study.

Peru's copper tungsten, silver, zinc production rise

Peru's metallic mineral production in July posted an increase in copper, silver, zinc and molybdenum, while gold, lead, tin, iron ore and tungsten fell, the mines and energy ministry reported.

Copper output rose 13.7% to 124,961t on gains at Glencore Xstrata's Tintaya-Antapaccay mine, Antamina and Buenaventura's El Brocal unit, the ministry said in a report posted on its website. Production fell at Southern Copper down 4%, and Freeport McMoRan's Cerro Verde (-7%).

Zinc (113,152t) and silver (306,056kg) output were also up compared to the year-ago month by 4.8% and 1.9%, respectively, the ministry said. Molybdenum rose 11% to 1,688t.

Gold output fell 4.2% to 442oz, while iron ore dropped 6.8% year-on-year to 575,144t as production dropped at Peru's only iron ore mine, operated by Chinese-owned Shougang. Lead fell 6% to 22,033t.

Tin production at Minsur slid 1% to 1,872t in July, while tungsten production was down 91% due to the suspension of the country's only tungsten mine, Malaga's Pasto Bueno due to an accident last year.

Through the first seven months of 2013, Peru's copper (+4.3%), zinc (+7.6%), lead (+2.4%), silver (+1.4%) and iron ore (+12.1%) production rose, while gold (-10.7%), tin (-14.7%) and molybdenum (-11.5%) were down.

Minerals account for approximately 60% of Peru's total exports.

Minerals permit surprises locals--Tungsten Copper

A 20sq km block at Kauri Mountain near Whangarei Heads is the latest area in Northland to fall under the blanket of a minerals exploration permit.

New Zealand Petroleum and Minerals (NZPM) has granted an exploration permit on 2026ha from the northern end of Ocean Beach to Awahoa Bay (south of Taiharuru Bay, or McGregors Bay).

The grab-bag permit issued to Hauraki Gold Ltd on October 8 covers minerals including gold, lead, copper, silver, tungsten, nickel, ironsand, iron, aluminium, zinc, magnesium, and tin.

The list also includes the rare, hard, corrosion resistant metal tantalum, several rare earths used in cosmetics and pharmaceuticals, and other manufacturing.

Zac Smith, whose waterfront land along the Kauri Mountain end of Ocean Beach is completely swallowed in the permit, first read about it on the internet. Mr Smith said he is not happy about the process which had excluded landowners.

"They've never been near me, no letter, no permission, and I can't do anything about it legally," he said.

Some other local landowners were unaware of the permit's existence until contacted by the Advocate.

Murray Jagger knew nothing about the latest development but said talk of minerals exploration had been floating around for "many, many years". Various forms of mining had taken place in the distant past with local sites still named accordingly, such as Copper Mine, he said.

Mr Jagger said he was not overly concerned at the idea of low impact exploration but would like more information on the plans.

New Whangarei District councillor and chairman of Bream Head Conservation Trust, Greg Innes had also known nothing about the permit. Mr Innes said the land in question fell outside the Bream Head trust's area but was within the Whangarei Heads Landcare Forum's scope.

New Zealand registered Hauraki Gold was set up in 2009. One director, David Cole, who lives in Colorado, USA, is also a director and the chief executive of Canadian trading company Eurasian Minerals.

Hauraki Gold is a totally owned subsidiary of EMX New Zealand (BVI) Inc.