Latest Price of Tungsten Plate on July 7, 2022

The latest price of 560x95x3.5mm tungsten plate is 520.00 USD/PC on July 7, 2022, EXW XIAMEN, CHINA. 

Tungsten plates can be as thin as 0.01mm or as thick as 127mm, with widths typically ranging from 10mm to 800mm. They can be used in many different applications and is valued for its corrosion resistance, ability to withstand extremely high temperatures, and ability to create rigidity and hardness when combined with other metals in the alloy.

Tungsten is used in the aerospace, research, building materials and light bulb industries. It is the predominant metal in electric furnace heating elements, as well as in any assembly where high pressure/high temperature environments are expected. Plates made of tungsten are commonly used in furnace construction, but are also important for making parts for the electronics and semiconductor industries, and can be found in a variety of lighting, vacuum plating, electronic vacuums and shielding.

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Latest Price of Lanthanated Tungsten Electrode (WL20) on July 7, 2022

The latest price of Ø2.4x175mm lanthanated tungsten electrode (WL20) is 1.10 USD/PC on July 7, 2022, EXW XIAMEN, CHINA. 

WL20 electrodes contain at least 1.7% to 2.2% lanthanum for excellent arc starting, low burnout rate, good arc stability and excellent re-ignition characteristics. They are ideal if you want to optimize your welding capabilities. They can work well on either AC or DC electrode negatives with tips, or they can be used with AC sine wave power supplies. The tungsten electrode adding with rare earth element lanthanum holds sharp tips well, which is an advantage for welding steel and stainless steel on DC or AC from square wave power sources.

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Fine Tungsten Wire May Replace Diamond Wire in the Photovoltaic Industry

Tungsten wire, made of refractory metal tungsten (W), has high melting point, high resistivity, good strength and low vapor pressure, which is widely used in the field of lighting. However, with the continuous reduction of the traditional lighting application market in recent years, head tungsten enterprises in China are more actively exploring other application fields, such as photovoltaics.

Diamond wire is one of the important tools for cutting silicon wafers that are one of the core components of photovoltaic equipment. The bus bar in the wire is mostly made of carbon steel wire, but studies have shown that fine tungsten wire can replace carbon steel wire thanks to its good characteristics of high tensile strength, high rigidity, good toughness, low torsional stress, fatigue resistance and corrosion resistance.

The purpose of replacing with this metal wire is to deal with the problem of thin wire. At the same time, this wire’s fracture force is proportional to the wire diameter and tensile strength. At present, the wire diameter of high carbon steel wire (busbar) is close to the limit. Fine tungsten wire has stronger tensile strength and can make the wire diameter thinner under the same breaking force.

Under the current background of wafer thinning and high price of silicon material, the thinning of diamond wire has become an inevitable trend. Generally speaking, with thinner wire, the loss rate of silicon wafer is smaller and the cutting effect will be better. Or, more generally, the finer the wire, the lower the production cost of related manufacturers and the higher the conversion efficiency of silicon cells.

Compared with made of high carbon steel wire, the wire with tungsten wire as the busbar has a smaller diameter, higher breaking force and better durability, so it is more suitable for application in the future photovoltaic Industry. 

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

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Why Tungsten Wire Can Be for Photovoltaic Purpose by Replacing Carbon Steel Wire?

As one of the core consumables in the silicon wafer cutting process, the cutting effect of diamond wire is mainly affected by factors such as product thickness, busbar performance and cutting method. Generally speaking, the cutting effect is better when the diamond wire is thinner. 

Nowadays, the most common diamond wire busbar in the photovoltaic industry is high carbon steel wire, according to Chinatungsten Online. However, with the development of silicon wafers in the direction of large size and thinning, this kind of wire is gradually replaced by fine tungsten wire. 

What are the advantages of tungsten wire as diamond wire busbar compared with high carbon steel wire? 

1, Smaller diameter. It helps reduce the loss rate of silicon wafers effectively. It is reported that the diamond wire busbar industry has begun to develop 35um wire, which is seriously approaching the limit of steel wire. The metal wire as a busbar has become an inevitable trend as it can have very good cutting ability in this diameter. 

(2) Lower breakage rate, mainly due to the advantages of higher tensile strength, better toughness, stronger cutting ability and fatigue resistance of tungsten-based steel wire.

(3) Better corrosion resistance and oxidation resistance. When the coating is damaged, the wire will not react with the oxygen in the air to produce corresponding oxides like steel wire, thereby reducing the cutting performance.

(4) Higher cutting efficiency. In a certain period of time, the tungsten-based steel wire with the same diameter can be cut more times than the diamond wire made of steel wire, and the yield rate is higher.

(5) Longer service life. For example, in the production of monocrystalline silicon, the service life of the wire rope made of tungsten metal wire is about 10 times longer than that of the wire rope made of steel wire. 

(6) It is more suitable for cutting large-sized silicon wafers because the wire of the tungsten-based rigid wire is thinner, the breaking force is higher, and the silicon wafer will not be broken.

(7) More cost saving, mainly reflected in the reduction of the loss rate of the workpiece being cut and the increase in the number of times of use.

If you have any inquiry of tungsten wire, please feel free to contact us:
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Latest Price of Tungsten Filaments on May 27, 2022

The latest price of φ0.8mm tungsten filaments is USD 2.00/PC on May 27, 2022, EXW XIAMEN, CHINA.

Tungsten filaments, also called cathodes or electron emitters or electron sources, are mainly made of high-quality tungsten. Of all pure metals, tungsten has the highest melting point (3422°C), the lowest vapor pressure at temperatures above 1650°C, and the highest tensile strength. Tungsten also has the lowest coefficient of thermal expansion of all pure metals. This combination of properties makes tungsten an ideal material.

Tungsten can be used in both thermionic electron guns and field-emission (CFE) electron guns. Electron beams come from filaments made of various materials. The most common is the tungsten hairpin gun, which is widely used in scanning electron microscopes, transmission electron microscopes, and microprobe systems. This filament is a tungsten ring that acts as a cathode. Apply voltage to the loop to heat it up. The anode, which is positive relative to the filament, forms a strong attraction to electrons. This causes electrons to be accelerated towards the anode. Some accelerate near the anode and down the column to the sample.

An electron gun works at a high temperature, which is required for thermionic emission. For this, a filament or the cathode should be of a material that has a high melting point in order for it to continuously emit electrons. Tungsten filament is folded with various shapes to help in focusing the electron beam.

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Latest Price of TIG Welding Cerium Tungsten Electrode on May 27, 2022

The latest price of φ3.2x175mm TIG welding cerium tungsten electrode is USD 2.00/PC on May 27, 2022, EXW XIAMEN, CHINA.

Cerium tungsten electrode (WC20) is alloyed with about 2% cerium oxide. It is a non-radioactive, refractory or non-consumable metal electrode material, which is the preferred substitute for thorium tungsten electrodes. Regular diameter of the electrode is between 0.5mm and 12.0mm, and the length is 150mm and 175mm.

The addition of this small percentage of cerium oxide increases the electron emission qualities of the electrode which gives them a better starting characteristic and a higher current carrying capacity with no spitting. With the increase of cerium oxide content, the ablation resistance and arc starting of cerium tungsten electrode will increase; with the increase of use time, the welding performance will gradually decrease.

The electrode has excellent arc starting properties at low current, and can operate successfully with AC or DC electrode negative. If used on higher current applications, the cerium oxide may be concentrated to the excessively hot tip of the electrode. In addition, WC20 is also used in inert gas shielded arc welding, hydrogen atom welding, argon arc surfacing, pulse argon arc welding, plasma welding, plasma cutting, plasma spraying, plasma melting, etc. The welding materials can be carbon steel, stainless steel, silicon copper, copper, bronze, titanium and so on.

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Tungsten Filament Wire Makes Incandescent Light Bulbs Safer and Brighter

Incandescent light bulbs have been making homes safer and brighter for over 100 years. After centuries of using fire, candles, oil lamps and gas, the invention of the incandescent light bulb transformed everyday life.

Tungsten is the material of choice for this innovation, emitting bright and long-lasting light.

In 1904, a Hungarian company produced the first tungsten wire, and then in 1906, General Electric managed to make a ductile tungsten wire. The wire made of tungsten is very fragile, which limits its use, but General Electric's William Coolidge was able to make it ductile by swaging and sintering. The malleable tungsten filament allows the wire to be coiled, extending the life of the bulb and making it glow brighter.

The first incandescent light bulbs were made of platinum wire. After experimenting with various materials, Thomas Edison developed the first commercial filament light bulb, which used carbon filament.

Over time, tungsten became the material of choice for filaments because they produced double the amount of light and lasted longer. With further exploration, the Edison-era tungsten light bulb was further developed, which was filled with an inert gas instead of being encased in a vacuum. This greatly reduces the black residue that forms inside the glass sphere due to its vacuum structure.

Old-fashioned Edison-era tungsten bulbs may not burn as brightly as the latest versions, but they are loved for their romantic warm glow, classic bulb shape, and most importantly, for their soft glowing aesthetic. Filament is appreciated.

Vintage light bulbs are used to create a relaxing atmosphere. They can still be used with carbon and tungsten filament wire, but older tungsten bulbs are more cost-effective to buy and more cost-effective in using electricity. They also stay clear longer than carbon filament bulbs.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum for more than two decades, and are good at producing tungsten filaments and wires. Please feel free to contact us if you have got the purchasing plans. 

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

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

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