Now that the economy is collapsing, investors are becoming more interested in gold. Here's an item from PopSci that says it wouldn't be too difficult to make convincing fake gold bars out of gold-plated tungsten (which costs $30 a pound compared to $12,000 a pound for gold).

start with a tungsten slug about 1/8-inch smaller in each dimension than the gold bar you want, then cast a 1/16-inch layer of real pure gold all around it. This bar would feel right in the hand, it would have a dead ring when knocked as gold should, it would test right chemically, it would weigh *exactly* the right amount, and though I don't know this for sure, I think it would also pass an x-ray fluorescence scan, the 1/16" layer of pure gold being enough to stop the x-rays from reaching any tungsten. You'd pretty much have to drill it to find out it's fake.   

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Tungsten alloy shot is used as the shot for shotgun hunting shells. The pellets spread upon leaving the barrel, and the power of the burning charge is divided among the pellets, which means that the energy of any one ball of shot is fairly low. Tungsten alloy shot can be used by FP6.

FP6 is a pump-action combat shotgun that was manufactured by the Italian firearms company Fabbrica Bresciana Armi S.p.A. (FABARM) and merchandised by Heckler & Koch. It was intended for civilian and law enforcement use.

Tungsten alloy shot has high density and high hardness, so FP6 has good performance with tungsten alloy shot.



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Tungsten alloy shot is used as the shot for shotgun hunting shells. The pellets spread upon leaving the barrel, and the power of the burning charge is divided among the pellets, which means that the energy of any one ball of shot is fairly low. Tungsten alloy shot can be used by Benelli M4.

The Benelli M4 is an Italian semi-automatic shotgun manufactured by Benelli Armi SpA.

The Benelli M4 was the first gas-operated shotgun produced by Benelli. Its function is designed around an entirely new method called the "auto regulating gas operated" (ARGO) system. The ARGO system on the Benelli M4 opened the door for Benelli's development of the R1 rifle line. The design uses two stainless-steel self-cleaning pistons located just ahead of the chamber to function opposite the rotating bolt, thereby eliminating the need for the complex mechanisms found on other gas-actuated automatics. Benelli accomplishes this level of reliability through the simplicity of the mechanism. The ARGO is a short-stroke system that incorporates only four parts. It consists of two symmetrical shrouds containing two small steel gas pistons.

Cerium Tungsten Electrodes Applications

Cerium tungsten electrode material in addition to the welding , plasma arc welding , displaced thorium tungsten electrode , the plasma cutting , plasma spraying , plasma melting the application effect is satisfactory . In addition, as the pump laser light source to cerium tungsten electrodes after replacing thoriated tungsten electrodes , so that the light source efficiency by about 12% , life expectancy increased by 5 to 10 times. In the electric light , for small and medium power xenon lamp has been used cerium tungsten electrodes , the electric vacuum , cerium tungsten material as the sealing member having a good use of effects .

Cerium Tungsten Electrodes Problems And Trends

Although cerium tungsten electrode material in a small tungsten electrodes for welding specifications had succeeded in replacing thoriated tungsten , but as AC welding electrodes and high-power xenon lamps and other aspects of the cathode gas discharge light source material , the use of cerium tungsten electrodes with thorium performance and life tungsten compared to the peaks and valleys are still unstable situation . Further, since the cerium has a high vapor pressure , and thus as the cathode material , there are still fast decay , poor stability . Thus in these areas are still using thorium tungsten electrode material .

With the progress and development of modern industry , welding, cutting the base material of the species, size and shape of the increasingly numerous , but in the field of welding is the rise since the resumption shou automatic welding , a series of new high- precision welding technology, the electrode materials and arc features a higher and more demanding requirements. Thorium tungsten , cerium tungsten electrode material , whether in arc starting , stable arc burning resistance or in terms of performance are unable to meet the growing requirements of welding technology . To this end , national science and technology workers are working on a new type of electron-emitting material . Studies have shown that adding tungsten matrix lanthanum or yttrium and other rare earth oxides , can greatly improve the ability of tungsten electron emission , especially lanthanum tungsten electrode material , from small to large current current range , all with excellent arc, arc stability and resistance to burning performance. Japan in the late 1980s has been able to mass production of rare earth tungsten electrode material , shortly thereafter , China has successfully developed . It is anticipated that this new type of electron emission materials will be involved in many industrial fields , use more widely, promising .


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