Tungsten carbide rings are made from tungsten and carbide powders, resulting in an indestructible, scratch-proof metal. The metal is used to create rings, wedding bands and bracelets. Tungsten carbide rings are a very durable alternative to the traditional gold or silver rings. These jewelry pieces can more accurately be called tungsten carbide rings, however. This compound is created by mixing powered tungsten and powdered black carbon and heating them to a very high temperature in the presence of hydrogen.

Tungsten is a rare metal that is almost 10 times harder than 18-karat gold, five times harder than tool steel and four times harder than titanium.


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Tungsten carbide will face with the technical innovation. In the face of tough market situation, the manufacturers of tungsten carbide cutting tools should pay more attention to the quality of product. In recent years,  the market of tungsten carbide in China is continuously expand while the quality level is still the same which affected the progress of the industry. The method of human hands and artificial visual of the current domestic traditional detection is inefficiency and easy to influenced by the individual factors of testers. With the mature of detection technology, intelligent automation testing equipment is attracted more attention. Automated testing is useful for improving quality and efficiency and reducing the influence of man-made factors. It can greatly improve the efficiency of detection for the product quality.

In the next few years, China's tungsten carbide product testing will face automation era. This will accelerate the optimization of China's tungsten carbide industry. As the leader of domestic custom inspection equipment provider, Beijing Leader Tech constantly feels their way into non-standard test market in recent years. It has been successfully developed a device for tungsten carbide industry aimmed at the automatic test equipment of bar and cutting tools. The device can be carried out fast precision automatic quality inspection. One device can accurately measure the thickness, length, width, the lateral deformation, flat deformation parameters of the workpiece at the same time. The detection efficiency is so surprised that one second can measure 1 piece.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten solid carbide tools are harder than steel and cut at higher temperatures. They also cut very accurately at high speeds, resulting in higher productivity. Solid tungsten carbide cuts abrasive materials, such as cast iron, glass and ceramics more effectively than steel.

Insert tungsten carbide drills offer a cost-efficient alternative to tungsten solid carbide drills, especially for medium- and large-size holes. Insert tungsten carbide drills allow you to change the insert when it dulls, which is much less expensive than replacing the drill.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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An alternate way to initiate the arc is the "scratch start". Scratching the electrode against the work with the power on also serves to strike an arc, in the same way as SMAW ("stick") arc welding. However, scratch starting can cause contamination of the weld and electrode. Some GTAW equipment is capable of a mode called "touch start" or "lift arc"; here the equipment reduces the voltage on the electrode to only a few volts, with a current limit of one or two amps (well below the limit that causes metal to transfer and contamination of the weld or electrode). When the GTAW equipment detects that the electrode has left the surface and a spark is present, it immediately (within microseconds) increases power, converting the spark to a full arc.

Once the arc is struck, the welder moves the torch in a small circle to create a welding pool, the size of which depends on the size of the electrode and the amount of current. While maintaining a constant separation between the electrode and the workpiece, the operator then moves the torch back slightly and tilts it backward about 10–15 degrees from vertical. Filler metal is added manually to the front end of the weld pool as it is needed.

Welders often develop a technique of rapidly alternating between moving the torch forward (to advance the weld pool) and adding filler metal. The filler rod is withdrawn from the weld pool each time the electrode advances, but it is never removed from the gas shield to prevent oxidation of its surface and contamination of the weld. Filler rods composed of metals with low melting temperature, such as aluminum, require that the operator maintain some distance from the arc while staying inside the gas shield. If held too close to the arc, the filler rod can melt before it makes contact with the weld puddle. As the weld nears completion, the arc current is often gradually reduced to allow the weld crater to solidify and prevent the formation of crater cracks at the end of the weld.
 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com