Darts come in a variety of materials, weights and grips; here I will talk about the different materials used in the production of darts, particularly the main three metals used: brass, nickel and tungsten. Darts will generally consist of a set of three dart barrels, points, shafts and flights which help to stabilize the flight of the dart when thrown; although it is the material of the barrel that is concerned here.

Brass
Brass darts are the most commonly seen types of darts because the inexpensive metal makes them popular in pubs, taverns and at home. Darts made of brass are usually aimed at beginners and are of low cost, therefore making brass a good choice for darts players who have either rarely or even never played darts before. Brass is a softer and less expensive metal than either nickel or tungsten and the drawbacks that come with this include any knurling on the brass grip has the potential to wear down quickly; as well as brass darts having a thicker barrel, because of the lighter metal, which can increase the number of bounce-outs and makes close grouping more difficult.

Nickel
Nickel darts are similarly inexpensive, although do generally cost a small amount more than brass. Darts made of nickel are usually the best choice for beginners who plan on playing relatively frequently because they are made of a harder metal and are therefore more durable than brass because the grip will not wear away as easily.

Tungsten
Tungsten is an extremely dense metal, considerably more so than brass or nickel; this increased density allows more weight in a smaller (thinner) barrel, making close grouping easier while maintaining the weight and minimizing bounce-outs. These high-density tungsten darts resist wear far better than brass or nickel. Tungsten darts are recommended for all darts players who have played competitively at some point and are the darts used by all professionals because having all of the darts mass concentrated into such a small, thin area vastly enhances the control of the dart. When buying tungsten darts, it is important to pay attention to the percentage of tungsten in the dart barrels because it is central to the quality of the dart; in general the higher the percentage the better, and more expensive, the dart is.

To find the right dart for you, it would be a good start to analyze yourself and your skill level; for example, If at any point you have played darts competitively before, or play it quite frequently and are looking to improve your game, then you should look to buy tungsten darts with a higher percentage of tungsten depending on how many competitive games you have played or plan to play.

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A melting point lower than the base brazing alloys as solder material, the solder melts when heated, and by wetting and capillary action to fill and maintain operations in the joint gap, and the base material in a solid state, relying on the mother liquid and solid solder mutual diffusion of material formed between the brazed joints.

The physical and chemical properties of brazed parent material is small, welding stress and deformation is small, a large performance difference can be welded dissimilar metals, to complete the same number of welded joints neat and beautiful appearance, simple equipment, low investment in production.

Welding process of the welding machine is first opening water and electric high-frequency welding equipment and then turning on the power panel. Turning the body into the prepared sensor in remote control switch is depressed to start heating. When the work-piece is heated to 830-860 degree melting brazing filler piece to complete the weld seam. The whole process takes about 30 seconds approximately.

 

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The first darts that were ever used would have been arrows, as used by medieval archers. This was the earliest recording of someone throwing arrows at a target. The earliest darts of the modern times were made of wood with natural feathered flights, usually three, and a small lead ring around the body or barrel to give it weight.

These darts were common right up to the 1950’s and could be found being used at carnivals around the U.K. In France, they can still be found.

Most players were soon using darts made of brass. Brass darts were far heavier than their wooden counterparts and could be made into almost any shape, giving the dart player a far wider choice in design and weight.

The first brass darts had wooden shafts with flights of paper and some with feathers. They later changed to plastic. The choice was getting larger for the player, but many players still today use feathered and paper flights in some countries.

In the early 1970’s somebody machined down an electrode used for underwater welding. These electrodes were made from a mixture of copper and tungsten.

As they were not a true alloy but mixed by a method call cintering they were relatively easy to machine and were considerably heavier than brass. This enabled the maker to keep the dart barrels smaller for the same amount of weight, an advantage when you are trying to throw them at a target of limited size.

Unicorn made the first commercial tungsten darts, and I had the pleasure of trying them at the world trade fair in London in 1971 at the Unicorn stand manned by Mr. Barry Twomlow.

A few years later the manufacturers of tungsten introduced a heavier still material using nickel with tungsten which enables them to introduce a larger content of tungsten, whilst still being able to machine it.

These tungsten billets, as they were known, came in different values from 65% up to 97%, the heaviest billet being the 97%. The material was now 16% heavier than lead, and far heavier than the original brass.

Tungsten not only allowed the player to have a slimmer dart but there was another unexpected bonus. The tungsten did not have that bounce quality that brass had, it was more like lead. When darts collide with each other on the board the tungsten ones appeared to stick close together where the brass barrels bounce off each other.

This allowed for far tighter grouping, which in turn gave higher scores. With the introduction of the tungsten darts, a whole New World of flights and shafts came, mostly for show and not performance.

The so-called Tungsten Revolution also saw a vast increase in the amount of people playing the game and it became a big success for the TV stations.
The Tungsten dart had a lot to do with this huge change in the game.


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Tungsten carbide cutting tools welding machine has several advantages. They are the following:

1. High heating speed induction, high efficiency;

2. Simply put pieces of copper or silver solder between the tip and the substrate;

3. Energy saving and small costs;

4. Small Oxidation area;  

5.Plump and firm welding seam after welding.

 

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