WY20 Yttrium tungsten electrodes for TIG welding blue , 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 , and 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 , electricity extreme in terms of the shape of the TIG is a important factor 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 tip joint requires a smaller angle , when the welding very thin material, to be low current , like the 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 .

Yttrium tungsten electrode ( grades WY20) in the welding arc beam slim , compress large degree , in the medium and high current penetration is relatively large , mainly used in military industry and the aerospace industry .


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High levels of yttrium tungsten electrode welding, electron emission ability, slender arc beam , a large degree of compression , in the middle of its large current penetration is relatively large. High levels of tungsten, yttrium electrode yttrium content of 1.8-2.2 %, and the electron escape Gong Wei 2.0-3.9 % .

High levels of yttrium tungsten electrode tungsten yttrium invention discloses a high quality method of manufacturing an electrode , the method comprising :

a. Would doped yttrium nitrate aqueous solution spray evenly mixed with solid material way paratungstate (APT) or tungsten trioxide , heated drying coating made ​​of tungsten, yttrium powder ;

b. Obtained for the yttrium -coated tungsten powder obtained after reduction twice yttrium tungsten powder , after pressing, sintering made ​​of tungsten, yttrium billet ;

c. Forging pressure processing manner using the obtained tungsten billet made ​​of yttrium Yttrium tungsten electrode . In this method, the yttrium nitrate aqueous solution was sprayed Doping mixed with ammonium paratungstate (APT) or tungsten oxide in the solid material in spray form the yttrium nitrate aqueous solution encapsulated in the ammonium paratungstate (APT) or tungsten trioxide of the surface to mixing, stirring, with the completion of drying , to prepare a uniform coated yttrium tungsten powder , improve the production capacity and make more uniform powder coating , yttrium tungsten effectively improved the performance in the welding electrodes .


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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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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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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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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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You can test gold in several ways to determine if it is the real thing. Real gold can be hammered and will not break or lose its shine. It will just flatten out. Fake gold will stolidly retain its original shape or shatter. You can also weigh fake gold to see if it weighs as much as the same amount of real gold would--a jeweler can help you with this. Dropping the item in question into nitric acid will also let you know whether your gold is fake, as the real gold will remain unaffected, but fake gold will change color and create a green foam.

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Because of the high-impact loads which these tools are subjected to, over and over again, their serviceable life is quite limited. Work hardening occurs at the neck of the tool, fractures develop and the toolhead soon breaks off. Although they are relatively inexpensive, because they are so simple in design and construction, their failure can mean an improperly set fastener, downtime, etc.

Other serious problems in the use of bucking bars is the strain and fatigue which the persons using such tools experience and the noise level incident to their use. The tool must be held tight against the work, from behind, and with one hand, while the impacting fastener is applied with a work tool held in the other hand. The shock load is transmitted through to the bucking bar and is taken fully by the operator and a high-decibel shock wave is produc

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Rivets and like fasteners require a backing member behind the work receiving the fastener to spread the blind end of the fastener and to stabilize the two parts while they are being fastened together. Tools of this type are commonly known as bucking bars and are usually no more than a bar of iron or steel with one end formed at a right angle.

Although there have been some suggestions for improvements in this type of tool, and notably in impact absorbing cushioning means, none have proven very successful.

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A bucking bar, comprising: toolhead and handle parts secured together and having a low recoil impact absorbing and compressible spacer provided there between, said toolhead and handle parts being formed for interfitting engagement and butt end shouldered engagement of the former against the latter, and fastener means extending transversely across and between said toolhead and handle parts for holding said toolhead and handle parts engaged with said spacer and for allowing relative movement therebetween in the impact absorbing compression of said spacer, said toolhead and handle parts having interfitting planular wall surfaces extending longitudinally and said fastener means provided therethrough.

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