We are lithium ion battery tungsten sheet

We are lithium ion battery, high purity materials and suppliers of target material, by in Germany, the United States has long engaged in the professional experts to form a new materialKekai tungsten & Molybdenum tungsten ball. Prominent industry technical experts and companies have long been engaged in the materials, processing, and analysis of professional engineering and technical personnel, and good at management, marketing and service of specialized personnel. We target based on continuous innovation, customer requirements in the lithium ion battery, high tungsten balls, three areas of sputtering target materials are establish the leading position. In tungsten bar production technology, material purification technology, material forming and processing technology, magnetron sputtering deposition technology, complete marketing team and management team of the comprehensive advantages, crystal pure new material will be a leader in energy conservation and environmental protection and new materials industry. Our products and service will be used in most countries, the manufacturer is dedicated to provide you with high quality products, improve the level of people's life. In order to improve people's lives as the vision, we use new materials professional experience and efficient enterprises operating experience, manifested as an environmentally friendly tungsten carbide ball enterprise social responsibility, to help our customers improve the competitiveness of products, production technology, provide the platform of sustainable development, to ensure the company's technology and innovation, the development speed and shareholders. To cope with the increasingly serious challenge of tungsten carbide rod, crystal pure new material by a leading green solution, help customers to reduce energy consumption and co2 emissions, to create the best social, economic and environmental benefits. Looking forward to the future, infinite prospect. In the process of global economic integration, cooperation is still the mainstream. We will uphold the principle of equality and mutual benefit, win-win sharing, with friends at home and abroad to join hands in creating a better future! Sincerely thank the care, support and help the development of the new material in the crystal pure people! 

The nature of tungsten sheet

The nature of tungsten is mainly exists in the form of Kekai tungsten & Molybdenum copper tungsten acid salt. Tungsten is a kind of metal elements, the crystallization of a film, qualitative hard and brittle, high melting point, can be made into fine wire and special alloy steel, tungsten wire, tungsten steel, tungsten ore (made of pure tungsten stone). Tungsten is rare metal, as well as important strategic materials, in ancient times known as "rocks". Of tungsten alloy minerals have been discovered in 20 species, tungsten deposit generally associated with granitic magma activity and form, after refining tungsten is silvery white, shiny metal. Tungsten powder in dark grey, spraying with tungsten powder is light grey.

Wolfram tungsten sheet

To provide you with the latest tungsten price quotes, real and effective Kekai tungsten & Molybdenum Technogy tungsten ball manufacturers, traders and demand information, different models, specifications, brands tungsten product information.Tungsten is a gray steel colored metal , tungsten powder to restore the rule of law was gray , granular tungsten powder is dark gray , ultra- fine grained tungsten carbide ball is black. High melting point of tungsten 3400 ℃. Large tungsten hardness, high density , high temperature strength. Tungsten is mainly used for the production of tungsten carbide and tungsten carbide rod carbide -based iron . Tungsten, chromium , molybdenum, cobalt for the production of heat- resistant alloy cutting tools, metal surface hardening material , gas turbine blades . Tungsten, tantalum , niobium , molybdenum, refractory alloy composition . Tungsten and tungsten copper -silver alloy for electrical contact materials. High density tungsten nickel-copper alloy for radiation protection shield . Tungsten wire, tungsten rod , tungsten sheet for the production of light bulbs , components and arc welding electrode tube . Tungsten and its alloys are widely used in electronics , electric light , space and weapons ( rocket nozzles , armor-piercing core ) . Alloy tool steel, high speed tool steel , forging die steel , structural steel, spring steel , heat-resistant steel and magnets are added tungsten.

Use thorium tungsten sheet electrode

Thoriated Kekai tungsten & Molybdenum Technogy copper tungsten electrode is usually used for the negative electrode of the DC or carbon steel, stainless steel , nickel positive electrode application , titanium and the like. Good performance of their operations , even in the current overload can be a good operation.
Thoriated tungsten electrode is usually used in the field of carbon and stainless steel . Thorium oxide content of 2 % of the thorium tungsten electrode is typically less than 1% of the thorium content of the tungsten electrode to better improve performance . When using thorium tungsten alloy electrode AC welding , faster, and should be used with caution in order to communicate before welding DC welding reaction . When AC welding , ball balled not melt, so the effect is not as liquid ball so well.
Thorium tungsten electrode is commonly used DC welding field , and pure tungsten electrodes for AC welding. During the welding process , the staff should read about the use of thorium- tungsten electrode instructions carefully .

Tungsten sheet gold

Refractory metals : tungsten&moly tungsten bar is a refractory metal . And

generally have a melting point above 1650 ℃ some reserves of

zirconium metal and the melting point higher than the melting

point (1852 ℃) is called a metal refractory metal . Typical

insoluble metal tungsten, tantalum, molybdenum, niobium,

hafnium , chromium , vanadium , zirconium and titanium . As a

refractory metal , tungsten carbide ball is the most important advantage

of a good high temperature strength , and the molten alkali

metal vapor with good corrosion resistance , only above 1000

℃ tungsten carbide rod oxide appeared before the volatile liquid oxides.

However , it also has a plasticity - brittle transition

temperature is high at room temperature, the plastic working

is difficult disadvantages . tungsten carbide rods as the representative

of refractory metals in the metallurgical , chemical,

electronics , lighting , industrial machinery and other

sectors has been widely used .
Rare : Tungsten is a rare metal . Usually refers rare in

nature or distribution of the content is less scattered metal

. Tungsten is an element of a broader distribution of various

types of rocks found in almost all over , but at low levels .

Tungsten content in the crust of 0.001 % in the average

content of granite 1.5 × 10-6, this characteristic led to

its extraction very difficult, often isolated extract only

exchange with organic solvent extraction and ion . With the

development of science and technology progress and

metallurgical processes, equipment and analytical techniques

, and expanding the production scale of rare metals such

purity tungsten continuous improvement , performance

continued to improve, increasing variety , thus expanding the

applications of tungsten . China's abundant mineral resources

of tungsten and tungsten production in total exports account

for the world.

Tungsten sheet Introduction

Tungsten is a metal element. Tungsten is a chemical element

symbol W, atomic number 74 , relative atomic mass of 183.85 ,

137 picometer atomic radius , density of 19.35 grams / cubic

centimeter , which belongs to the periodic table of the sixth

cycle ( the second longest period) Group VIB . Kekai tungsten alloy in

nature primarily in a hexavalent cation ionic radius of 0.68

× 10-10m. Since W6 + ionic radius is small, the price is

high, strong polarization capability , easy to form a complex

anion , so tungsten ball mainly in the complex anion form [WO4] 2

-, and the solution Fe2 +, Mn2 +, Ca2 + and other cations to

form wolframite or white tungsten ore precipitation. After

smelting of tungsten are silver -white metallic luster , high

melting point, great hardness, low vapor pressure , the

evaporation rate is smaller, is chemically stable . This is

the basis of our understanding of what is tungsten .
Non-ferrous metals : tungsten balls is a non-ferrous metals .

Usually people based on the color and nature of the metal to

metal into two categories: ferrous and non-ferrous metals .

Ferrous metals mainly refers to iron , manganese, chromium

and their alloys , such as steel , pig iron, ferroalloy ,

iron and so on. Metal black metal than is called non-ferrous

metals . Tungsten belong to non-ferrous metals category.

Strength and hardness than pure non-ferrous metal alloys

generally higher resistance than pure metal large temperature

coefficient of resistance is small, has good mechanical

properties. Therefore, as a non-ferrous metals , tungsten

very high strength and hardness . Because of this

characteristic , has high hardness , wear resistance is

widely applied in the tungsten carbide cutting tools , mining

tools.

Molybdenum wire concentrate leaching

Some get a molybdenum concentrate plant, copper, lead, iron and other impurities substandard. High-quality standards of tungsten&moly copper molybdenum by Climax Molybdenum Company of America: MoS2 should be

95%, Cu should be less than 0.15%, Pb should be less than 0.05%. In the international market, quality almost, prices sent many, as the company July 1, 1975 quality molybdenum

Concentrate is priced at $ 2.43 / lb, unqualified to $ 2.236 / lb, the race to 2.5 to 17%. In order to reduce the content of these metals, and some plant using different

The leaching process.
    Brenda plant concentrate containing 55.3% molybdenum grade is relatively high, but the content of copper and lead undesirable. To this end, the plant uses the company developed the Noranda

Leaching process to reduce impurities to improve the quality of concentrate. This process is the principles and methods: copper chloride, ferric chloride leaching of molybdenum alloys oxide and calcium solution of Cu, Ca

And Pb. Cupric chloride and ferric chloride (103 and 41 respectively, the amount of g / t of concentrate) in a sodium chloride solution containing 20 to 30% of the chalcopyrite and galena

Effective chlorinating agent, calcium chloride or sodium chloride to reduce the PH value, and is used to increase the boiling point (located 4850 feet elevation Brenda leaching requires higher boiling point), reduction of

Short leaching time. Brenda most effective plant copper tungsten leaching solution containing 1% of cupric chloride, ferric chloride, 10% and 30% calcium chloride. Leaching at 2 hours at 100 ℃,

Make Cu, Pb leaching rate reached 98%, Ca leaching rate reached 79%, and was dissolved molybdenum is less than 0.5%. Used leachate chlorine gas can be quickly regenerated

. After each batch leaching let go 30% of the leaching solution, in order to control the leaching solution of copper and lead harmful elements. After leaching copper content fell from 0.337% molybdenum concentrate

0.063% lead content to 0.05% molybdenium grade increased from 55.3% to 56.6%. Such concentrates cooling and washed twice (including filtration and recycling pulp) after conduct

The final filtration and drying.
    Valencia Rita plant selection molybdenum concentrate containing 47 to 48% molybdenum, copper contained in order to further remove, to improve the quality, the plant uses a ferrous chloride leaching. Work

Arts process is the first molybdenum was filtered and dried to 2% temperature and then leaching the copper (up to 2.5 to 3.0%), ferrous chloride extract, molybdenum grade to 53 ~ 54%

. After the concentrate leaching and filtered again and dried, and within 2 meters of the roaster roasting ф.16 give trioxide, 60 to 61 percent of its grades, less than 1% sulfur, send

Ferroalloy plant into the preparation of ferro molybdenum. Cologne plant in order to reduce the copper content of molybdenum, using sodium chloride leaching, the product is filtered and then dip the slurry, and then sent to the acid

Dip, to further reduce the amount of copper, molybdenum acid leaching after final filtration and drying.

Integrity first molybdenum wire quality assurance

Status of foreign copper molybdenum ore beneficiation
Copper-molybdenum ore is one of the main sources of molybdenum, and Chile, the United States, Canada, Peru, Mexico and the Soviet Union, it is the recovery of molybdenum concentrate mainly from copper-molybdenum ore

Countries. Foreign practice shows that in recent years, the mining of copper tungsten deposit, the minimum copper grade of 0.2 to 0.3%, the lowest grade molybdenum 0.01 to 0.011%.
    At present, foreign copper-molybdenum ore beneficiation has three characteristics: First, they use a mix plus flotation separation process; Second, the rapid construction of a modern and efficient process large

Type the new plant, only 1975 to 1980 built on flat Tuo Wali plant (36,000 tons / day, the United States), Huo boast the plant (41,000 tons / day, Peru), La Kali

Dade plant (90,000 tons / day, Mexico),  plant (40,000 tons / day), Kapuqieshi He ink plant (40,000 tons / day, Iran), Sa
 plant (40,000 tons / day), Bagh Dade plant (36,000 tons / day, the United States); third is to strengthen the research molybdenium recovery process.
 In order to remove undue impurities, almost all recent construction of copper-molybdenum plant molybdenum rougher concentrate will be multiple choice, usually 7 times to 12 times, and in the fine

Election process, but also after a period or two and then re-grinding mill. Regrinding some open, some closed circuit with cyclones job selection period is closed, the former tailings return once

To mine box. Pima plant 3 to 7 times the combined selection of tailings, grading and re-sent to grind. The plant's molybdenum alloys mixed concentrate of 27% copper and molybdenum 0.5%, also contains a large number of

Talc, which planktonic activity and molybdenite are similar, it is difficult to remove, often resulting in molybdenum concentrate grade of less than 40%, sometimes even less than 10 to 15%, this failed concentrate

In the past had to be stored up for future processing. In order to improve the quality of concentrate, the plant had tried various methods, no problem. 1975 Pima introduction of tungsten ball election

The new law, the law is molybdenum concentrates containing talc in the selection carried directly into the flotation of molybdenum - talc separation. First or mineral acid salt was treated with a weak base (ammonium sulfate)

After a weak acid with a strong base (sodium) salt solution treatment. Featured sent out dehydration of tungsten balls, talc, molybdenum rougher tailings go to the mine boxes. The new process will return molybdenum concentrate

Yield increased from 40% to 43% (ore grade 0.47% Cu, 0.015% Mo). According to reports, the new process is set in the original production site, without the expansion of the flotation

Operating line.