About Ternary Complex Process of Tungsten Electrodes
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- Category: Tungsten Information
- Published on Tuesday, 15 October 2013 14:10
- Hits: 1616
People never stopped research on tungsten electrodes , thoriated tungsten electrodes from the basic to the present cerium tungsten electrode , lanthanum tungsten electrode , and the composite rare earth tungsten electrodes , gradual process and product quality innovation and progress forward . The composite rare earth tungsten electrode is the latest scientific research , our scientists are only carried out vigorously develop . One called ternary complex of tungsten electrode product was born. 
Ternary rare earth tungsten electrode is a newly developed green electrode products, with excellent overall welding performance. This is the most promising substitute radioactive contamination of thorium tungsten motors, but because rare earth compound added three constituents , so the production process to bring a new problem , the tungsten electrode swaged and brushed finished products during processing rate decreased significantly. The researchers based swaging process temperature and pass deformation in different designs of the two processes. Plasticity of the electrode integrated use of the various stages of the process of optical metallographic microscopy , scanning electron microscopy and X- ray diffraction analysis and other methods of processing materials were obtained electrode microstructure analysis, we found the two in the formation process fibrous tissue with different characteristics . Good processing performance in which processing technology , fibrotic tissue fibers of uniform width , between the fibers arranged in neat rows . The researchers found that the type of processing parameters of the various stars fibrous tissue , and thus have different yield. Swaging process by adjusting the process parameters to improve the ternary complex of rare earth tungsten electrode production yield.
Ternary complex of rare earth production and application of tungsten electrodes , longevity good economic and social benefits.
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Silver Characteristics And Performance of the Tungsten Electrode
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- Category: Tungsten Information
- Published on Tuesday, 15 October 2013 14:03
- Hits: 1338
Binary alloy of silver and tungsten , whether in liquid or in solid, silver and tungsten are immiscible . There AgW30, AgW60, AgW80 and AgW90 so on. Hardness 
high arc erosion resistance , anti- adhesion and anti- fusion welding ability. Manufactured by powder metallurgy . More than 60% tungsten alloy production of multi-use impregnated . Used for low-voltage power switch, crane switch, locomotive switch , high current switching pre- contact, as well as heavy-duty relays, air circuit breakers. Cobalt can be added to improve the wettability of silver tungsten , reduce the contact resistance .
Silver and tungsten sintered products , higher conductivity than copper tungsten , as mainly suitable for resistance welding electrodes require high antioxidant work environment . As EDM electrodes of the ordinary copper electrode when the finish is difficult to achieve , so that the abrasive to achieve a very high precision.
AGW-70 silver tungsten electrode materials, and mainly used in welding materials ; such as : low-voltage automatic switch, high voltage circuit breakers and protection switch and so on.
Need for silver tungsten electrodes , usually difficult to machine tool processing equipment and high- quality finish electrode, the electrode repair ordinary copper electrode to achieve the best finish , making the mold to achieve very high accuracy.
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Silver Tungsten Alloy and Silver Tungsten Electrodes
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- Category: Tungsten Information
- Published on Tuesday, 15 October 2013 13:56
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The silver and tungsten and the alloy composition , a binary alloy of silver and tungsten . Because a high melting point of tungsten silver with each melt can not , so you can not use the traditional method of preparation , silver tungsten alloy powder metallurgy method of preparation must . 
Silver tungsten alloy combines the advantages of silver and tungsten , high melting point, high specific gravity , cutting , high conductivity , wear resistance, damage , resistance welding , anti-oxidation ; is the electrode of the best, you can make a very general processing equipment and tool difficult to process out of the high finish of the electrode ; tungsten electrodes with silver electrodes better than ordinary to achieve the best finish results, so that the mold to achieve very high accuracy.
Silver tungsten is characterized by its high strength and resistance to soldering , mainly by the penetration and the nominal composition of the silver content from 20 to 50% . Tungsten increases, the hardness is reduced , and soldering ability . Whether liquid or solid, silver and tungsten can not be miscible. The material is characterized by high hardness , resistance to arc erosion , anti-adhesion , anti- welding capability.
Silver tungsten electrodes and electrode materials are mainly used in welding materials ; such as : voltage automatic switch, high voltage circuit breakers and protection switch and so on. Widely used in high temperature materials, high-voltage switch with electrical alloy , EDM electrodes , microelectronics materials, parts and components as widely used in aerospace , aviation , electronics, electric power, metallurgy , machinery, sports equipment and other industries.
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Silver Tungsten Electrodes for Various Models of Technical Parameters
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- Category: Tungsten Information
- Published on Tuesday, 15 October 2013 13:59
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Silver Tungsten Electrode Technical Parameters :
Product Name Symbol silver impurity conductivity IACS% tungsten Density g/cm3 Hardness HB ≥ bending strength
Silver Tungsten 30 AgW30 70 ± 1.5 0.5 margin 11.75 ; 75 75
Silver Tungsten 40 AgW40 60 ± 1.5 0.5 12.4 66 margin 85
Silver Tungsten 50 AgW50 50 ± 2.0 0.5 margin 13.15 57 105
Silver Tungsten 55 AgW55 45 ± 2.0 0.5 margin 13.55 54 115
Silver Tungsten 60 AgW60 40 ± 2.0 0.5 margin 14 51 125
Silver Tungsten 65 AgW65 35 ± 2.0 0.5 14.5 48 margin 135
Silver Tungsten 70 AgW70 30 ± 2.0 0.5 14.9 45 margin 150 657
Silver Tungsten 75 AgW75 25 ± 2.0 0.5 15.4 41 margin 165 686
Silver Tungsten 80 AgW80 20 ± 2.0 0.5 16.1 37 margin 180 72
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One Kind of A Method of Manufacturing AN Electrode of Tungsten Invention Yttrium
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- Category: Tungsten Information
- Published on Tuesday, 15 October 2013 13:53
- Hits: 1738
One kind of tungsten electrode yttrium invention discloses a manufacturing method for manufacturing the 
tungsten electrode yttrium , 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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