Cerium tungsten electrode material is a non -radioactive, non- consumable refractory metal electrode material , applied to the inert gas-shielded arc welding , plasma welding , cutting, coating and smelting , the laser light source and the gas discharge light source technologies such as the electrode , and a vacuum electron beam coating cathode filaments , etc. The present invention uses powder metallurgy process , strict control of process parameters, to prepare a cerium oxide content of 1.0 to 4.5 % cerium tungsten electrode material , thus overcoming long as people think cerium oxide containing more than 1.0 % cerium tungsten electrode material embrittlement problem occurs .

Cerium tungsten electrode material manufacturing methods and equipment belonging to the field of chemical and metallurgical techniques . The first aspect of the present invention is to use liquid - liquid mixing replace the existing liquid - solid mixing , the additive , tungsten ceria group in the most uniform dispersion , thus greatly improving the processing of the tungsten electrode material Ce properties and performance ; second aspect of the present invention is to replace the existing spray- drying and evaporation of the mixing disc drying , the tungsten powder particle size , particle size distribution and particle shape can be controlled , thereby ensuring the processing performance , easy , continuous and automatic and mass production . Cerium tungsten electrode material for the promotion and application of the foundation.


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
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To tell if gold is real or fake, measure its density. The density of gold, 19.3 grams / cm3, is much higher than most other metals. Even lead has a density of only 11.4 g/cm3 -- platinum, iridium, osmium, and neptunium are the only metals that have a density over 20 g/cm3! (For comparison the density of water is only 1 g/cm3).

To measure the density of a metal, you need a scale or balance (to measure the mass) and a graduated cylinder (to measure the volume).

First weigh the piece of gold on the scale. Then, to determine the volume, add some water to the graduated cylinder. It doesn't matter how much, but write down exactly how much there is.

Then add the gold to the graduated cylinder. Again, write down the exact water level. Take the difference of the two numbers to get the volume of the gold alone. Remember 1 milliliter = 1 cm3.

Finally, find the density by dividing the mass by the volume (density = mass ÷ volume). If what you get is approximately 19 g/cm3, then it is real gold. It might be slightly less because almost all gold jewelry is not actually 100% gold (pure gold is too soft for jewelry). Note also that this method won't work if there parts of the jewelry that are not gold (like gems, etc.) because the density you measure will be affected by those other non-gold parts.

Gold plated Tungsten Product Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
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Fake gold comes in several forms. The most common--and the hardest to detect--are when another heavy metal is plated with 24-carat gold. This makes it appear that the entire piece of metal is pure gold, when actually only a thin skin on the surface is truly the precious metal. Iron pyrite, or fool's gold, is a common stone that many people used to think was gold during the days of the Gold Rush. However, it is far too hard and light to actually be gold, and almost everyone knows the difference today. People have also been fooled by highly polished copper pyrite or bismutite, both of which have a bright, yellowish sheen in some lights.

Gold plated Tungsten Product Manufacturer & Supplier: Chinatungsten Online - http://paper-weight.cn/
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Tungsten heavy alloy is ultimate the Bucking bar material - you will never use steel bars again! Because of the density, you can create the best shape for your space so it's just right for getting inside the ribs and spars gaps on wings, flight controls, etc. The weight and the density of the metal make for the best rivet bucking in the industry. With tungsten-based bars, just a few taps with a 3X rivet gun and a 1/4 rivet is complete. This saves possible damage to the aircraft skin and frames due to less repeat riveting and it also saves time allowing you to move on to the next rivet.

Tungsten-based bucking bars are also ergonomically better than steel. Studies show that tungsten-based bucking bars reduce the amount of vibration the user experiences and therefore reduces the chance for white finger or carpal tunnel syndrome.

Tungsten Bucking Bar Manufacturer & Supplier: Chinatungsten Online - http://www.buckingbar.cn
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