Yttrium is a chemical element , its chemical symbol is Y, its atomic number is 39 , is a silvery-white transition metal . Yttrium is a silver with metallic gloss rare earth metals , it is fairly stable in the air , it is chemically similar characteristics and lanthanum . Yttrium debris in air at 400 degrees Celsius can be spontaneous , its powder is unstable in the air . In the process of nuclear absorption of its middle section is small. Average price of yttrium oxide +3 .

Yttrium rare earth metals are common . Wherein the two compounds of yttrium YVO4: Eu and Y2O3: Eu can be used to produce a red color television phosphors .

Yttrium tungsten electrode tungsten, yttrium products. Blue distinction as its symbol . High compressive strength, high and medium current welding high permeability .

Yttrium tungsten electrode welding, arc beam slender, compression large, medium and high current when its maximum penetration . Mainly used in military industry and aerospace industries .

Yttrium tungsten electrode packaging requirements : 10 / plastic box , the length is 150mm or 175mm, 1000 per carton .


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When evaluating or finding equivalents of tungsten carbide grades the important criteria is to specify two of three factors. Binder content, hardness or grain size. In straight matrix materials any two of these will match the third. A 15% binder with hardness of 88.0 RA would have to be fine grain material whereas with a hardness of 86.0 RA would need a very coarse grade to achieve it. Specifying cobalt binder only can be a dangerous game. Take control of each situation and ensure you know what you are using and why so that consistency of specification can be obtained from whatever source. We can achieve hardness differential on 15% cobalt: purely by varying the grain size, that would need a spread of 11% cobalt over same gain size materials.

All specifications of tungsten carbide are designed and engineered for a purpose and rigid controls are kept throughout production processes to ensure adherence to grade engineering. Quality control properties such as hardness, density, and minimum transverse rupture strength were determined from tests made on each batch of powder before it is used in the manufacturing process. Other properties such as Young's modulus of Elasticity , Poisson's ratio , Coefficient of Thermal Expansion, Thermal Conductivity and Electrical Conductivity are used by engineers for design calculations. Properties such as compressive strength, grain size and abrasion resistance give the designer additional information about the suitability of the grade for the part being designed.

                   


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Zirconium Tungsten Tungsten electrodes for TIG welding , which is a tungsten matrix by powder metallurgy method of incorporation of about 0.3% -5% of a rare earth element such as : cerium, thorium , lanthanum , zirconium, yttrium and the production of tungsten alloy strip , then after pressure processing, diameters from 0.1 to 80mm, standard length from 75 to 600 , while the most commonly used specifications for diameter 1.0,1.6,2.4 and 3.2 , the shape of the TIG electrode terminal is an important factor in terms of , when using DCSP , the power ground terminal to be pointed shape , and the angle of the tip with the application, electrode diameter , and welding current to change , narrow edge connectors require a smaller angle , when the weld very thin material, required low current , like needle electrodes for a minimum to stabilize the arc , and to ensure proper grounding electrode arc easily , good arc stability and appropriate weld bead width . When the AC power to the welding, grinding electricity without the extreme , because using the appropriate welding current, electrode terminals will form half of the ball , if the increase in the welding current, electrode tip becomes bulb -shaped and may melt and contaminate molten gold .

Zirconium tungsten electrode ( grades WZ3, WZ8) under the conditions of the AC welding performance is good, and has good corrosion resistance. Especially in the case of high load currents , zirconium tungsten electrodes increased performance can not be replaced by other electrodes . In welding , the end portion of the tungsten electrode of zirconium to maintain a reduced spherical tungsten infiltration phenomena , conditions suitable for the exchange of Mg alloys.


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Whenever you are considering an investment in gold, you must require proof that the item that you are purchasing is actually gold. A simple certification is nearly worthless in the legal system since there is no way to prove that you yourself did not switch the gold for fake gold after the gold came into your possession. Work with a trusted jeweler or other expert to make sure before you buy, you are getting the real thing, because you have next to no recourse once the deal is done.

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