钨产品生产商、供货商：中钨在线科技有限公司
产品详情查阅：http://www.chinatungsten.com
订购电话：0592-5129696 传真：0592-5129797
电子邮件： sales@chinatungsten.com
钨新闻、价格手机网站，3G版：http://3g.chinatungsten.com
钨新闻、价格手机网站，WML版：http://m.chinatungsten.com

Tungsten alloys can be plated and polished, thereby offering a wide variety of finishes.

For example: gold plated tungsten jewelry. Nowadays, gold plated tungsten is increasingly used in some field relevant to gold or platinum substitution, such as: gold plated tungsten jewelry, e.g. gold plated tungsten ring, ear ring, necklace, wrist chain, etc. Also, gold plated tungsten is widely adopted in making souvenir coins, such as memorial crown and other application such as gold plated tungsten watch band. Its hardness makes it ideal for tungsten jewelry that will resist scratching, and will not need polishing, which tungsten jewelry is especially useful in designs with a brushed finish.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com
 

Like lead, tungsten has excellent corrosion resistance, and is only attacked slightly by most mineral acids.

At relative humidity of fewer than 60 %, tungsten is corrosion-resistant. In moister air, discoloration starts to occur. However, this is less pronounced than in molybdenum. Even at very high temperatures, glass melts, hydrogen, nitrogen, noble gases, metallic melts and oxide ceramic melts are largely unaggressive to tungsten provided that they do not also contain oxidants…more please visit http://www.plansee.com/en/Materials-Tungsten-541.htm#Chemische_Wolfram

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Tungsten parts are manufactured from powder using a powder metallurgy process. This allows each tungsten part to be recycled back to its original powder form.

The recycling tungsten heavy metal alloy powder is obtained by oxidation-reduction process. The recycling powder was mixed homogeneously with appropriate amount pure nickel and iron powder. Then the mixed powder was pressed and sintered to get the recycling tungsten heavy metal alloy. The results show that the mechanical properties of recycling tungsten heavy alloy are nearly the same to that of the alloy produced by pure metal elements mixed powder. The maximum density is 17.12 g/cm3.Hardness decreases with the increasing sintering temperature. The tensile strength and elongation get the best match when the sintering temperature is 1440 °C, the tensile strength is 922.95MPa, and the elongation is 20.18%.After vacuum heat treatment, the mechanical properties of recycling tungsten alloy improve. The tensile strength increases about 6.44%, and the elongation increase about 43.42%.

To conclude, the recycling cost is relatively small and there is a very small loss in tungsten recycling.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Since Tungsten is environmentally friendly, there, are no federally mandated disposal costs associated with getting rid of tungsten, as there are with lead as it is known to all that lead interferes with the development of the nervous system and is therefore particularly toxic to children, causing potentially permanent learning and behavior disorders.

As a matter of fact, industrial scrap (new scrap) and used scrap (old scrap) are recyclable, so it does not need much effect to dispose tungsten. For example, in 2000, an estimated 46 percent of U.S tungsten supply was derived from scrap. The ratio of tungsten consumed from new scrap to that from old scrap was estimated to be 20:80.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Due to its high density and high melting point, tungsten is as versatile as lead, if not more so. Tungsten can be used as a lead replacement for a variety of applications:

a)        Ammunition (tungsten shot)

,

b)        Industrial (tungsten flywheels, tungsten cases, tungsten dies, tungsten rods, tungsten plates)

c)        tungsten Jewelry (tungsten rings, tungsten bracelets)

d)       Radiation Shielding (the protective mats radiologists use when taking your x-rays)

e)        Sport (tungsten darts, tungsten golf clubs, tungsten fishing weights and tungsten lures) 

f)         Stationery (the tungsten tips used in ballpoint pens)

g)        Weights (tungsten balance weights, tungsten wheel weights)

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Tungsten has the highest melting point of any pure metal at 6170°F (3410°C), while lead melted at 621.43 °F (327.46 °C), which make tungsten rod of value in a variety of high temperature products and processes. Among them are glass-to-metal seal parts and support parts for lighting and electronics, silicon rectifier stud mounts and high temperature furnace components.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Tungsten comes in many alloys from a machinable alloy to a diamond-hard one. The alloy can be tailored to each specific application. The hardness and density of tungsten are applied in obtaining heavy metal alloys. A good example is high speed steel, which can contain as much as 18% tungsten. Tungsten's high melting point makes tungsten a good material for applications like rocket nozzles, for example in the UGM-27 Polaris submarine-launched ballistic missile. Superalloys containing tungsten are used in turbine blades and wear-resistant parts and coatings.

Tungsten Carbide is the choice to provide the best protection available for extreme wear and impact. It wears up to 100 times longer than steel in conditions including abrasion, erosion and galling. Wear resistance of tungsten carbide is better than that of wear-resistance tool steels. Wear resistance and heat resistance are just two of hundreds of suitable applications. It can offer wear life in excess of 5 times that of alumina ceramic and has ability for continuous operation a temperatures up to 900 degrees F (480 C). It can also be machined to very tight tolerances and to fine surface finishes as needed. WC is used to make wear-resistant abrasives and cutters and knives for drills, circular saws, milling and turning tools used by the metalworking, woodworking, mining, petroleum and construction industries and accounts for about 60% of current tungsten consumption. The jewelry industry makes rings of sintered tungsten carbide, tungsten carbide/metal composites, and also metallic tungsten. Because of tungsten carbide's hardness, rings made of this material are extremely abrasion resistant, and will hold a burnished finish longer than rings made of metallic tungsten. 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Unlike lead, tungsten is not toxic, so it can be used in numerous applications.

Lead has already been phased out of kids’ toys, electronics, and electrical equipment because it interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, reproductive and nervous systems, therefore particularly toxic to children, causing potentially permanent learning and behavior disorders. New regulations for lead paint removal go into effect in April 2010. At some point all lead use will be phased out, so why not get a jump on finding environmentally-friendly lead alternatives, like tungsten?

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

Lead has a density of about 11.34 g/cm3, but with tungsten, you can achieve densities of up to 19.25 g/cm3, almost two times the density of lead, comparable to that of uranium (18.9 g/cm3) and gold (19.30 g/cm3). 

Higher density means smaller parts for the same weight, so tungsten is widely used in many areas such high-performance engine in battle plane、armor piercing bullet 、 shrapnel pits、counterweight in racing car、fishing sinker、 sailing boat、radiation shielding and so on.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com