Tungsten Carbide Button Gradient Structure Optimization

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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Tungsten Carbide Button New Sintering Technology

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
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:  sales@chinatungsten.com
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Choosing a Right Place to Hanging Dartboard

When you want to play tungsten dart game, the proper place to hang a dartboard can be a difficult choice:

The area should be a low-traffic area to decrease the risk of injuries.

There should be nothing breakable 2-3 feet on either side of the board and preferably nowhere near the board at all. Darts can bounce 8 feet or more off the board.

An empty area roughly 5 feet wide and 11 feet long is essential. Although you can throw over items in the area, it can be very distracting. It is also annoying walking an obstacle course each time you pull your tungsten darts out of the board.

The floor should be considered in several ways:
1.A concrete, stone or tile floor will break tungsten darts and dull the points.
2.A wood floor will get lots of holes in it around the front of the board.
3.Linoleum or vinyl flooring will also get a lot of holes.Carpet will show A lot of wear from the traffic between the board and the line.
4.You will need to mark the throw line with tape, sticker, or a screwed down wood or metal bar.
5.Taking all this into consideration, you might want to think about purchasing a "dart mat". This is a roll out rubber mat that serves several functions. It protects the dart from breaking and dulling, it protects the floor and marks the proper distance to the throw line.
6.There should be adequate room for spectators and players when they are not throwing.
7.There needs to be a place for a score board in sight from the line, preferably right next to the board.

tungsten dart game

 

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Tungsten Carbide Button for Drilling

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
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:  sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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Tungsten Carbide Bullet Button Shortcomings

In terms of structure, the top of bullet type tungsten carbide button is short so that button will abrasive easily when it works. And the abrasion of button crown is becoming the main form of scrapping under such a situation, which impact and the hardness of rocks is not enough.when tungsten carbide button cutting rocks into a certain depth, the contact area between rock and buttons is growing faster. As a result, the pressure of carbide button decreases. This will lead a bigger plate growing faster than the crown abrasion. In addition, the taper is broken because of a lack of toughness and hardness, according to relevant statistics, there is 20% tungsten carbide drill bits were broken, which made of such bullet-shaped buttons at work.

 

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:  sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

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