How to machining tungsten bar ingots and tungsten rods

Pure tungsten hardness and strength are high,Tungsten billets in cutting process, because of the coarse grains, easy to produceImpellers and make the rough surface processing.Cutting tungsten ingots and Kekai tungsten & Molybdenum tungsten carbide rods can be used to make carbide cutting tool materials,The commonly usedCemented carbide gradesYG6,YG8,YS2(YG10H),726And so on.With cutting ingot or tungsten bars, tungsten carbide can be used45O Lord Angle, wild car rake Angle and back Angle should be small,car and semi finished when the rake Angle, Angle after more appropriately. Pure tungsten wire extremely fragile, easy to collapse when cutting edge or peeling off,Cutting tool to cut out when, should reduce feeding, to prevent the tool breakage. 

Tungsten ingots, pure tungsten bar

Tungsten ingots, pure tungsten, tungsten powder, tungsten slag, carbonized tungsten, tungsten, scrap sponge Kekai tungsten & Molybdenum tungsten carbide rods, tungsten bars, tungsten and tungsten tube, tungsten, tungsten carbide, tungsten rods soft black gold, electrolytic tungsten and tungsten alloy, etc.

Properties: symbol: W, silvery white, shiny metal, density: 19.35 grams per cubic centimeter, melting point: 3410-20 ℃, boiling point: 5927 ℃, mohs hardness: 7.5, the chemistry of the tungsten weights is stable, with air and water at room temperature without response, not soluble in hydrochloric acid, sulfuric acid, nitric acid and alkali solution. Dissolved in aqua regia, and a mixture of nitric acid and hydrofluoric acid. Under high temperature to chlorine, bromine, iodine, carbon, nitrogen, sulfur and other chemical combination, but not with hydrogen.

USES: mainly made of tungsten powder and tungsten carbide powder and tungsten compounds, widely used in chemical industry, machinery, electronics and other fields, make filament and high speed cutting steel alloy, also used in optical instruments. 

Kekai Tungsten bar & Molybdenum Technology

Tungsten is part of non-ferrous metals , is also an important strategic metal , Kekai Tungsten & Molybdenum Technology copper tungsten ore in ancient times was called " heavy stone ." 1781 by the Swedish chemist Carl . William . She Yeer discovered scheelite , and extract new elements acid - acid, in 1783 by the Spanish Air Asia Depp found wolframite also extract the acid, the same year, with a carbon reduction of tungsten trioxide first got tungsten powder, and named the element. Tungsten content in the crust is 0.001 %. copper molybdenum minerals have been found in 20 species . Tungsten deposit is generally accompanied by granitic magma activity and the formation . After molybdenium smelting after the silver-white lustrous metal , high melting point, great hardness.

????Currently mined tungsten mine in the world , about 50% for high-quality steel smelting , about 35% for the production of rigid steel , approximately 10% for the system tungsten wire , about 5% of the other for other purposes. Tungsten can be manufactured firearms , rocket nozzles , metal cutting blades, drill bits , hard mold , drawing dies , etc., the use of tungsten is very extensive, involving mining, metallurgy, machinery , construction, transportation , electronics, chemical industry, light industry , textile , military, aerospace , technology, various industrial fields. The most common is our home and some bulbs with tungsten filaments .

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Tungsten bar is a power vacuum lighting materials

TungstenKekai tungsten & Molybdenum Technogy tungsten bar filament , tungsten bands and various forging components for tube production, radio electronics and X -ray technology . Incandescent tungsten filament is helical filaments and the best materials. High temperature (2200 - 2500 ℃) ensure a high luminous efficiency , and a small rate of evaporation of the wire to ensure a long life . tungsten carbide ball for manufacturing an electronic oscillator tube straight hot cathode and a gate , and a high-voltage rectifier and the cathode side in various electronic instruments hot cathode heater. For contacts made ??with tungsten carbide rod cathodes and cathode and atomic and hydrogen torch electrode radio equipment X-ray tube and the gas discharge tube . Tungsten and tungsten rod as a high temperature furnace (3000 ℃) heater . Tungsten heater in a hydrogen gas , an inert gas or in vacuum .

The role of tungsten bar

Tungsten is part of non-ferrous metals , is also an important strategic metal , tungsten ore in ancient times was called " heavy stone ." 1781 by the Swedish chemist Carl . William . She Yeer discovered scheelite , and extract new elements acid - acid, in 1783 by the Spanish Air Asia Depp found wolframite also extract the acid, the same year, with a carbon reduction of Kekai tungsten & Molybdenum Technogytungsten trioxide first got tungsten powder, and named the element. tungsten alloy content in the crust is 0.001 %. Tungsten minerals have been found in 20 species . Tungsten deposit is generally accompanied by granitic magma activity and the formation . After tungsten smelting after the silver-white lustrous metal , high melting point, great hardness.Currently mined tungsten ball mine in the world , about 50% for high-quality steel smelting , about 35% for the production of rigid steel , approximately 10% for the system tungsten wire , about 5% of the other for other purposes. Tungsten can be manufactured firearms , rocket nozzles , metal cutting blades, drill bits , hard mold , drawing dies , etc., the use of tungsten is very extensive, involving mining, metallurgy, machinery , construction, transportation , electronics, chemical industry, light industry , textile , military, aerospace , technology, various industrial fields. The most common is our home and some bulbs with tungsten filaments .
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Tungsten bar

Wolframite, scheelite , tungsten, iron ore and other minerals containing tungsten. Important tungsten&moly tungsten mine in Bolivia , California and Colorado, China , Portugal, Russia and South Korea. China produces 75% of the world's tungsten . Obtain pure tungsten carbide ball metal by reduction of oxides of carbon .

Tungsten estimated worldwide total storage of 700 tons, of which about 30% is wolframite, scheelite 70% . However, most of these deposits can not be mined economical manner . According to the current consumption of these deposits is only enough to use about 140 years . Another way to obtain tungsten carbide rod is recycled. Recovery of tungsten ore than tungsten content, in fact very profitable .

Molybdenum: weak demand hardly Tungsten Cubic about rising prices

2012, 40-45% of molybdenum price of 1632 yuan / ton level, far below the 2004 average level since 2730 yuan / ton level, but also lower than the cost of the original ore

The production cost of 1800 yuan / ton degrees. In this regard, the assistant general manager Antaike, tungsten&moly tungsten wire, molybdenum, vanadium project manager Xu Aihua said that although the molybdenum price decline for several years to make the molybdenum industry group

The completion of the initiative to take the initiative to inventory and production process, but can hardly be optimistic about demand for molybdenum, molybdenum prices climbed weakness.
Xu Aihua believes that the current global economic situation, the trend is still uncertain, weak economic growth, which directly affects the development of the steel industry. As with steel line

Close relationship molybdenum industry, the recent price trend will go through a period of adjustment.
In 2012, global production of 229,000 tons of tungsten bar, again following the 2009 decline, dropping 8.5%. Among them, the United States and Chile led the declines, reaching 17%

And 26%, while China has increased slightly.
Currently, molybdenum production in China, the U.S., Chile's share of global proportion reached 37%, 26% and 15%. In recent years, the global amount of molybdenum mineral growth came mainly from the

Country.
According to Xu Aihua expected, from 2013 to 2014, the global copper molybdenum production were estimated at 250,000 tons, 270,000 tons. In output growth, she particularly valued the China factor

. "Because Osan copper-molybdenum mine belongs to China National Gold Group Corporation in January of this year the successful implementation of copper-molybdenum alloys separation, I expect mine production this year will reach 3,000 tons,

Next year production is expected to reach 6,000 tons. "
Molybdenum reserves are mainly distributed in China, the U.S., Chile and other countries, the three countries accounted for 81 percent of global reserves. Chinese molybdenium reserves of the world, and more for mine

Primary ore, high grade, low impurity. "At present, the domestic private mining indiscriminate digging of small mines is serious. With the implementation of the industry access policy, I believe the industry leader for molybdenum prices

Pricing power will increase. "Xu Aihua said.
In the long run, Xu Aihua molybdenum prices remain optimistic, she said: "From the end-consumer point of view, molybdenum is mainly used for energy, infrastructure, shipping, aerospace and military fields.

Significant gains in these sectors in the world's third industrial revolution and China's new urbanization pull, will drive consumption of molybdenum in the next 10 to 20 years to return to high growth

Track. "

The Tungsten Cubic copper and molybdenum

    Copper ore resource utilization, the increasingly widespread attention abroad call this no waste treatment or waste-beneficiation processes. The well-known American Clay

Max molybdenum processing plant in addition to the recovery of molybdenum in molybdenum concentrate grade of 54%, but also with molybdenum rougher tailings containing 50% S elected pyrite concentrate containing 65% WO3 of tungsten alloy concentrate containing 35%

Sn tin concentrate and monazite were five kinds of products; U.S. Mishin tungsten ball plant flotation tailings from the zinc rougher and was selected three times to obtain a zinc concentrate; Soviet Alberta

Marek plant installed in the hydraulic trap with some relief at the mill and processing with selection of a mix between the hydrocyclone concentrate with gold tank trap 20 to 70 micro-

M monomer gold particles, the total tungsten balls rate of 74 to 78 percent; Magne and Sangma Emanuel and other plant byproducts also note that additional payments, the former use of a special structure of the flow

Tank, gravity tailings transport in the gold recovery process back; Canada is recycled byproduct bismuth; Some plant has been mixed with a free selection of the tailings from the

Cobalt sulfide mineral, pyroxene mineral cobalt and arsenic, cobalt mineral pyrite concentrate, can inhibit the sodium iron sulfide flotation it out.