Tungsten Granule for Carbon Sulfur Analyzer

Tungsten granule is widely used as accelerator and catalyst in carbon sulfur analyzer to test the content of carbon and sulfur. The granular is applied pure tungsten powder with purity over 99.95% as the raw material, and sieved from the crushed tungsten bar. Therefore, the shape is irregular and mainly measured with a size range. The regular sizes we are producing are 10~20 mesh, 20~40mesh, 40~60mesh. Customized sizes are available. Besides the dimensions, as for it is used to test CS, the requirement of CS content in granule is restricted, which is C under 0.0008%, and S 0.0005%.

The CS analyzer is infrared CS analyzer, which is used to analyze the content of carbon and sulfur in chemical, steel, metallurgy, research and other industries. During testing, the samples are ferrous metals, nonferrous metals, rare earth, ores, ceramic, etc. The principle is heating the samples under high frequency induction, and testing the content of C and S through infrared absorption method. The effects of granule are as flux and accelerator.

With the flux of W granule, the testing sample can release CO2 and SO2 quickly, and granule will oxidize to tungsten trioxide under high temperature, and sublimate at 900℃, so that the C and S gas will not be covered, but with higher spread speed and oxidization.

CS analyzer can test the CS content of copper iron, alloys, stainless steel, carbon steel, cast steel, rare earth, nonferrous metals, concrete, ores, ceramic, iron ore, etc. Leco, Eltra, NCS and Hitachi are all the brands of CS analyzer, and the testing methods are infrared absorption spectrometry, electric arc and high frequency.

 

The dose of tungsten granule in CS analyzer depends on the sample quantity and the ceramic crucible is used as the melting crucible. During packing, granule is packed with 2.5kgs/bag, and ceramic crucible 1,000pcs/box. Surely, the customized requirements can be negotiated.

If you have any inquiry of tungsten granule, please feel free to contact us:

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Tel.: +86 592 5129696/+86 592 5129595

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Inquire Tungsten Rhenium Disc on Nov. 3, 2020

 Chinatungsten inquires tungsten rhenium disc, if you can supply, please feel free to contact us for cooperation.

If you can supply tungsten rhenium disc, please feel free to contact us:

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Lanthanum Tungsten Electrode Price on Nov. 3, 2020

 Ø2.4x175mm lanthanum tungsten electrode price is 0.795USD/PC on Nov. 3, 2020, EXW, Xiamen, China. The grade quoted is WL20. As for the increasing of raw material and esp. the exchange rate, the price has been increasing a lot.

If you have any inquiry of tungsten electrode, please feel free to contact us:

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Tungsten Block Price on Nov. 3, 2020

10x20x200mm tungsten block price is 185.00USD/PC on Nov. 3, 2020, EXW, Xiamen, China. The price of tungsten block has been adjusted as for the increasing raw material price and fluctuate exchange rate.

If you have any inquiry of tungsten block, please feel free to contact us:

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Cerium Tungsten Electrode Price on Sep. 24, 2020

Ø2.4x150mm cerium tungsten electrode price is 0.678USD/PC on Sep. 24, 2020, EXW, Xiamen, China. The grade quoted is WC20. As for the increasing of raw material and esp. the exchange rate, the price has been increasing a lot.

If you have any inquiry of cerium tungsten electrode, please feel free to contact us:

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How to Weld Copper Bonded Tungsten Copper Electrode

The welding method of copper bonded tungsten copper electrode is silver brazing, which is the most popular method in our workshop. The silver welding material is used, so that the electricity conductivity can be maintained.

The copper bonded electrode is mainly used for spot welding, which is for the industry of steel vehicles. When used to weld, the welding method applied for the welding bodies is pressure welding, which is a welding method that do not used any welding material, but high pressure to joint two parts together, so that the work pieces is without resistance on the welding gap. Copper is a material with high electricity conductivity, which is used to convey electricity and generate heat for welding bodies.

For the welding method to the electrode itself, besides brazing, there are other welding methods, such as pressure weld, melting weld, etc.

Melting weld is metals welding and recrystallization, which is the same process of casting. This method is to heat the welded part until melting, the welded parts will be welded together after cooling. The methods include arc welding, gas welding, electroslag welding, electron beam welding and excitation welding. 

Pressure weld is make the welded part under great pressure and make the contacted surface without oxidized materials and other impurities. The welded two parts will be welded together when reached their stress range. Pressure weld is not applied any welding filling materials, but only pressure to move the oxidized materials on the surface and weld the workpieces together by certain pressure.

Brazing is applied liquid material to fill in the gap of two welded parts, and jointed them together. This method required a third metals, such as silver. Hard brazing and soft brazing are included in these two welding methods.

Even though these three methods can be used for the welding of copper and tungsten copper, silver brazing is still the widely used method. Any other welding methods or any opinion on tungsten copper are all welcomed to be discussed.

If you have any inquiry of copper bonded tungsten electrode, please feel free to contact us:

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Tungsten Alloy Application in Civil Industry

Tungsten alloy application in civil industry including mechanical industry, instrument industry, electricity industry, metallurgy, oil and chemical industry, sport industry, radiation shielding in medical and nuclear industry. The grade of tungsten alloy includes WNIFE, WNICU, WNIFECO, WNIFEMO, and the content from 90%W to 97%W.

1.0    Mechanical production

Tungsten alloy is with good performance of high density, high temperature resistance, high wear resistance and anti-oxidization, so it is widely used in mechanical production, including molding material, machining, etc. The material with tungsten alloy is with hardness of 24 to 32 HRC, which can be processed by carbide cutter.

2.0   Instrument Industry

Due to the high density of tungsten alloy, the unit weight higher than other metals, it is used as balancing weight, damper, adjusted weight, mobile weight, etc. The unit weight and shape can be customized.

3.0   Electrical Industry

With the advantage of good electricity conductivity, tungsten alloy is widely used in electrical processing industry, such as bucking bar, electrodes, and contactors.

4.0   Metallurgy, Oil and Chemical Industry

Tungsten alloy can be applied in forging steel, chemical industry, oil industry, metallurgy, filter. Due to the anti-corrosion and anti-oxidization, the alloy can be molds, tubes, thread type, crucibles, etc in these fields.

5.0   Radiation Shielding in Nuclear and Medical Industry

Because of the high density, the shielding effect of tungsten alloy is 40% higher than lead, it is good shielding to gama radiation and also widely used in nuclear material store and transport, medical shielding and thermal generator shielding.

6.0   Sports Industry

High density, small size are the reasons for tungsten alloy for sports industry, such as weight in racing car, ships, yacht, golf, dart, etc. For the small volume, the car, ships, yacht can own a higher speed and small resistance both on the land and in the sea.

Besides the above applications, tungsten alloy can also be the material to make name card, fishing weight, gold plated weight, etc. The dimensions can be customized according to the requirements of the customers.

If you have any inquiry of tungsten alloy, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

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