Tungsten Electrodes Price

Understanding the Characteristics of Tungsten

Details: Category: Tungsten Information; Published on Thursday, 11 July 2013 15:45; Hits: 2206

Tungsten is a very unique metal with very unique characteristics. Tungsten is a very heavy metal. In fact, tungsten derives its name from the Swedish words tung and sten, which means “heavy stone”. In terms of weight compared to lead, a cubic inch of lead weighs half as much as a cubic inch of tungsten. Just to put in as a perspective, a cubic inch of lead weighs about six and a half ounces (a little less than half a pound).

Much has been said about tungsten’s toughness and high durability, but it is also pretty brittle. In fact, it is possible to cut a piece of with a hacksaw. Some tungsten wedding bands have been known to break if dropped from a fairly high distance. Nonetheless, tungsten carbide is still one of the toughest and strongest of all metals known to man.

One of tungsten’s most amazing characteristics comes from its ability to withstand heat. With the exception of carbon, tungsten has the highest melting point of all elements. Tungsten has a melting point (the point where it changes from a solid to a liquid) of 6,152 degrees Fahrenheit (3,410 degrees Celsius). At 4,982 degrees Fahrenheit, another “tough” metal – Iron – is already boiling. At high temperatures, tungsten keeps its profound strength and does not begin to expand nearly as much as other metals. Because of its ability to remain strong under high temperatures, tungsten is used in space travel.

Another interesting characteristic of tungsten is that it does not react with many other substances including acids. Tungsten is resistant to most acids, which also aids in the jewelry industry. The lack of reaction with acids and other elements prevents your finger from turning green.

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Tungsten Alloy Collimator for Radiotherapy

Details: Category: Tungsten Information; Published on Thursday, 11 July 2013 10:02; Hits: 2123

Tungsten alloy collimator is widely used for radiotherapy. In China, radiotherapy was begun in 1930’s. Radium Hospital (Fudan University Shanghai Cancer Center), build in 1931 and Peking Union Medical College Hospital (having 200mg radium needle, a 200kV X-ray therapy apparatus and a 120kV X-ray therapy apparatus), build in 1932, were the first hospitals launching the earliest radiotherapy in China. At the end of 1950’s, China imported the first ⁶⁰Co therapy apparatus, high energy ray device. China imported the first betatron in 1968 and the first liner accelerator in 1975. In recent years, radiotherapy has developed unprecedentedly. All of new radiotherapy techniques are developed including three-dimensional stereotactic radiotherapy (gamma knife, X-ray knife, conformal therapy and intensity modulated radiotherapy). Researches on tumor radio physics and radio biology also achieve fruitful results. In recent years, hospitals adding radiotherapy in every province, city, prefecture-level city, county-level city even small towns are more and more. Radiotherapy equipments are more and more advanced.

Tungsten alloy collimator is used for guiding X-ray to protect patients and doctors from radiation. Density of tungsten alloy is higher than lead by 60%. The high density allows a reduction in physical sizes of collimator without compromising effectiveness of shielding characteristics. Otherwise, tungsten alloy has the advantage of non-toxicity. So tungsten alloy is more suitable for collimator, compared with lead.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Metal Injection Molding for Tungsten Alloy

Details: Category: Tungsten Information; Published on Thursday, 11 July 2013 09:41; Hits: 2250

Metal Injection Molding (MIM) is a growth technology for manufacturing complex-shaped,high-volume metal or alloy parts. Metal Injection Molding (MIM) parts can be produced from ferrous and non-ferrous metals and alloys.

The advantages of Metal Injection Molding (MIM)
Density: Typically 95-98% of wrought material. Mechanical Properties - Comparable to wrought alloys of similar composition. Complexity - Geometries comparable to plastic injection molding. Surface Finish: As processed, 32 ram or better. Corrosion Resistance - Comparable to wrought alloys of similar composition. Alloy Selection - Many ferrous, nickel-based and copper-based alloys available.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
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Tungsten Alloy Counterweight Block

Details: Category: Tungsten Information; Published on Thursday, 11 July 2013 09:48; Hits: 2001

The high proportion of raw materials for production to clean the metal tungsten alloy counterweight block is pollution-free, in line with international environmental standards, proportion (> 18g/cm3), small size. Therefore, resistance to strong winds, light into the water, sinking fast, and sinker the best alternative to products sold in Europe and other developed countries.

Tungsten alloy counterweight block including: tungsten alloy golf weight, car weight of tungsten alloys, tungsten alloys and fishery pendant with heavy tungsten alloy ship weight, tungsten alloy aircraft weight 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 Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
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Strong Wind Resistance of Tungsten Fishing Weight

Details: Category: Tungsten Information; Published on Thursday, 11 July 2013 09:34; Hits: 2046

Tungsten fishing weight is an ideal, environment-friendly alternative to lead weight, which are toxic and increasingly being labeled an environmental hazard.

As the high density of tungsten, the tungsten fishing weight makes your fishing easier. It is extremely sensitive and can actually help you "feel" what the bottom is made of and what your bait is bumping into, such as brush, rocks, mud, etc.

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