Steel tip darts are mostly used with bristle dartboards. Steel tip darts have a very sharp steel point to stick in the fiber of a bristle board. They can be complex with as many as five completely separate removable parts, and can be tuned for performance. Many models are available in different weights. Steel tip darts can be made of brass, nickel - silver, tungsten, and copper. However, most dart players will choose steel tip of tungsten, because tungsten is a metal with high-density and so durable. There are two options about steel tip of tungsten darts. One is fixed-point tip, the other is moveable-point tip. The fixed-point tip, as the name implies, it does not move, and this is the most common type. The moveable-point tip can move, it can help decrease the chance for a bounce-out. If you are always throwing on real hard boards, or older type boards that don't have all the nice features, moveable points may be for you.

Soft tip darts are mostly used with electronic dartboards. Soft tip darts have a flexible, plastic tip on the end to easily lodge into the holes on electronic dartboards. Usually lighter than steel tip darts, soft tip darts can be weighted differently, and be as complex. Soft tip darts can be made of plastic, brass, nickel - silver, tungsten, and copper. Most professional players would choose soft tip of tungsten darts.

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This new technology not only overcoming traditional vacuum sintering weakness that it will leave a amount of internal defects, which reduces tungsten carbide performance, but also decreases machinery expenses and improves the efficiency. It can remove the gap inside carbide button extremely, and picks out the raw grain to refine it. It is significant for improving the density of tungsten carbide button, and showing good performance. Currently, many manufactures are start using this sintering technology to provide a great quantity of tungsten carbide buttons.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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The top layer of gradient cemented carbide contains WC much to resist abrasion. The middle layer contains an amount of Co, so it has good toughness. This structure is beneficial for drilling, which has larger impact loads and longer working life. For instance, using φ45mm drill bit with DP55 cone button in limestone tunnel drilling, the average working life of gradient structure is 3121m at 1.96m/min compare with the ordinary 1000m at 1.48m/min. Many researchers overseas proves that the amount of carbon practical needs 0.1% -0.4% lower than theoretical value, and an appropriate increase in carburizing temperature conducive to migrate to the liquid Co sintered body inside. In addition, the different size of the sintered body should choose different respective carburizing time.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Drilling means that relevant tungsten carbide button should be tough and hard enough. According to the different types of rock formation and hardness, they can be divided into different grades, such as YG6, YG8, YG8C, YG11C, YG13C, YG15, etc. If the rock formation is pretty hard and the impact is huge, we should choose the carbides contain Co more and raw grains alloy. On the contrary, we should choose the little one.

Tungsten carbide button are bearing strength of pulling, bending, pressing, twisting and some cyclic stress when it is working. So they have to bear thousands and thousands of impacts and corrosion, which requires that the button on drilling bit distributes well-regulated in order to make bearing equally. When you use large-scale rock dill, the ball-shaped with double angle of chamfer is a better choice. On the contrary, cone and wedge is beneficial for prolong working life.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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