Graphite is made from carbon but it is in a particular molecular structure that gives it special properties. For one, it can conduct electricity very well and makes a great electrode especially under high temperature conditions. The special layout of the carbon atoms when assembled into graphite makes large numbers of electrons available for conducting electricity. As it turns out, graphite is the only nonmetal solid element that is able to conduct electricity well. There are several different types of electrodes that can be made from graphite, here are the most common.
The Quality Of Graphite Depends On The Source of Carbon
The carbon used in https://graphiteelectrodesforsale.com/graphite-electrode-sales/ comes primarily from petroleum products. The higher the quality of petroleum then the more pure the carbon which leads to a graphite product that carries electricity better. There are also other qualities that can influence the amount of current that an electrode can carry.
Qualities such as the diameter, length, porosity, resistance, and build density all play a factor. The closer together the carbon atoms in the finished product, the better it will conduct current.
The Two Main Types of Graphite Electrodes Have Different Uses
The small diameter graphite electrodes, SDGE for short, are used to melt metals in scrap metal refining processes. The electric current is run through the electrode and arced over to the scrap metal in a electric arc furnace. The current passing through the metal creates intense heat causing it to melt. These types of furnaces are much faster and more efficient than using combustibles to melt the metal which can sometimes take hours to reach peak temperature.
The other most common type of electrode is called the large diameter graphite electrode, or LDGE for short, and it is more commonly used to melt steel. Steel has a much higher melting point than most scrap metals and therefore needs a thicker electrode to carry enough current to get the job done.
The LDGE electrode can carry very high current and reach a very high temperature. They can be used to melt large quantities of steel in a single batch. The typically carry 10 times the amount of current as the smaller electrodes and produce a far higher temperature.
When it comes to choosing a particular graphite electrode it’s important to speak to a professional manufacturer to sort out the various qualities of graphite and the size that will be needed to carry the current. Graphite electrodes will usually be graded as HP for High Power, HD for high density, UHP for Ultra High Power, and SHP stands for Super High Power. while both the large and small graphite electrodes come in all the different grades, the large, or LDGE electrode is usually needed in the premium grade, or high grade quality due to the extreme high intensity uses.
It’s best to consult with an expert when buying your first graphite electrode. Then, if the lifetime was adequate, simply replace a worn out one with the same grade. If you weren’t satisfied with the grade you had, consult with a professional in the field to determine a better product for replacement. Get more info from here: https://graphiteelectrodesforsale.com/