Tungsten alloy fishing weights are an ideal, environment-friendly alternative to lead weights, which are toxic and increasingly being labeled an environmental hazard. Tungsten alloy fishing weights are harder than steel and extremely dense, tungsten being on average 30 percent smaller than its lead counterpart. Tungsten alloy fishng weights are smaller than conventional weights, create twice the sound of lead weights and maintain their shape for longer. Tungsten is also used in the production of other fishing applications, such as tungsten-carbide line cutters and tungsten powder coating for fishing lines.
 
A fishing weight is a weight used to force a lure or bait to increase its rate of sink, anchoring ability, and/or casting distance. Fishing weights may be as small as 1/32 of an ounce for applications in shallow water, even smaller for fly fishing applications, or as large as several pounds or considerably more for deep sea fishing. They are formed into nearly innumerable shapes for diverse fishing applications. Environmental concerns surround the usage of most fishing sinker materials.

A jig is a type of fishing lure that usually consisting of a lead sinker with a hook molded into it and usually covered by a soft body to attract fish. However, recently, tungsten alloy fishing weights is becoming more and more popular among angles because it has the features of high density, small volume, and environmental friendly, and has been taking place of the lead sinker. Jigs are intended to create a jerky, vertical motion, as opposed to spinnerbaits which move through the water horizontally. The jig is very versatile and can be used in both salt water as well as fresh water. Many species are attracted to the lure which has made it popular amongst anglers for years.
 
The fishing weight is made by rare metal - Tungsten, it is an ideal substitute of the lead fishing sinker. It's strong adhesive, semi-solid state, soft for a long term. Tungsten Heavy Alloys concentrate maximum weight in the smallest possible space. They are more often to be used as counterweight in sporting field, such as fishing sinkers, golf weights, etc.
 
Advantages for tungsten alloy fishing weights
 *Small body
*High density
*Nuisance free
*Strong wind resistance
*International environment protection standard


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Owing to its high density of shielding, tungsten heavy alloys is quite ideal for medical radiation shielding of which including Magnetic Resonance Imaging(MRI),Intensity Modulated Radiation Treatment(IMRT ),Positron Emission Tomography (PET), collimator, isotope container, and so on. 

Tungsten heavy alloys for medical radiation shielding set forth below: 

Refractory metal is generally a kind of metal whose melting point is higher than 1650℃ and has definite reserves. The metals whose melting point is higher than Zr (1852℃) are also called as refractory metal. Refractory metal material is a kind of alloys which is based on refractory metal as matrix and adds with other metal elements. 3D printing technology is a kind of techniques which is based on files of mathematical model, utilizing refractory metal material and manufacturing substance by printing layer by layer. 3D printer appeared at the mid-term of 1990’s. It is a kind of rapid prototyping devices by using light-cure and paper stacking up. The operational principle is similar to general printer. There is refractory metal powder in 3D printer. When connecting with computer, the printer superimposes refractory metal material layer by layer, being controlled by computer. Lastly, the blueprint in computer will be change into material object. At present, 3D printing technology has been widely adopted in aviation industry for manufacturing main bearing components of fighter. The most outstanding advantage of 3D printing technology is that graphic data of computer can produce any shapes components directly, without machine work or moulds, so that can reduce lead time of product, improve productivity and lower cost.

3D printing technology can not only be used for manufacturing plastic gun. At present, 3D printing technology has been widely used in developing and manufacturing of weapons around the world. Advanced 3D printing technology can not only sinter or fuse plastic, wax and sand, it can also sinter refractory metal directly. In traditional manufacturing process of fighter, it needs long-term investment for manufacturing hydraulic forming equipment after finishing design of fighter 3D model. The processes of shaping and application of components have been improved largely while using 3D printing technology. The main bearing components, being made by refractory metal material and manufactured by 3D printing technology has been widely used for J-15, the first Chinese carrier aircraft, including the whole former landing chassis. It is said that the refractory metal material which is manufactured by 3D printing technology will be also used for J-20 and J-31, the fifth generation fighter.

3D printing technology can be also used for maintenance and guarantee of weapons in the battlefield directly. At present, the U.S. army has already deployed mobile laboratory in Afghanistan. The U.S. Army is also speeding up the combat deployment of 3D printing technology, so that can improve the maintenance ability of weapons and enhance persistent combat effectiveness during wartime. The damaged components can be printed by using 3D printing technology timely and assembled by maintenance personnel so that weapons can join in battle again.


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The temperature of tungsten alloy material inside shaped charge liners rises from normal temperature to more than 1000℃ and strain rate reaches 1.0×10⁵s^-1. So, we can see that the shaping procedure of EFP (Explosively Formed Penetrator) is happening under the conditions of high temperature, high pressure and high strain rate. It is not any materials that can shape complete EFP. It has quite a high claims on the dynamic characteristics of materials under the condition of high temperature, high pressure and high strain rate. The ideal materials for shaped charge liners should have the properties of high melting temperature, high density, high elongation and dynamic strength, etc. Tungsten alloy material is ideal material for shape charged liners. Otherwise, engineering application also should considerate the cost and resources of material. Those materials which are important, high price and short resources are not easily utilized for a wide range.

Tungsten copper alloy shaped charge liners recombine metals which have different function so that can exert the complicated advantages of alloy. Compared with those single-metal shaped charge liners, tungsten copper alloy shaped charge liners have more reasonable transformation and absorption mechanism, more excellent penetration and lower cost. So it has wide prospect for development.

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
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