Jan. 18, 2020
Graphite Electrodes refers to a kind of refractory made of petroleum coke and pitch coke as aggregates and coal tar as a binder. High-temperature graphite conductive material. Graphite electrode is mainly made of petroleum coke and needle coke, coal tar is used as a binder, and it is made by calcining, batching, kneading, pressing, roasting, graphitization and machining. The conductors that heat and melt the furnace charge can be divided into ordinary power graphite electrodes, high power graphite electrodes and ultra high power graphite electrodes according to their quality indicators.
The main raw material for graphite electrode production is petroleum coke. A small amount of pitch coke can be added to ordinary power graphite electrodes. The sulfur content of petroleum coke and pitch coke cannot exceed 0.5%. Needle coke is also required when producing high-power or ultra-high-power graphite electrodes. The main raw material for aluminum anode production is petroleum coke, and the sulfur content is controlled to be not more than 1.5% to 2%. Petroleum coke and pitch coke should meet the relevant national quality standards.
As a Graphite Electrodes Manufacturer, share with you the advantages:
(1) The increasing complexity of mold geometries and the diversification of product applications have led to higher and higher requirements for the discharge accuracy of spark machines. The advantages of graphite electrodes are that they are easier to process, have a higher removal rate of electrical discharge machining, and have less graphite loss. Therefore, some group-based spark machine customers have abandoned copper electrodes and switched to graphite electrodes. In addition, some special-shaped electrodes cannot be made of copper, but graphite is easier to mold, and copper electrodes are heavier and are not suitable for processing large electrodes. These factors have caused some group-based spark machine customers to use graphite electrodes.
(2) Graphite electrodes are easier to process, and the processing speed is significantly faster than copper electrodes. For example, milling graphite is used to process graphite, its processing speed is 2 to 3 times faster than other metal processing and no additional manual processing is required, and copper electrodes need to be frustrated by hand. Similarly, if a high-speed graphite machining center is used to manufacture the electrodes, the speed will be faster, the efficiency will be higher, and the problem of dust will not occur. In these processes, the selection of tools and graphite with appropriate hardness can reduce tool wear and copper electrode breakage. If you compare the milling time of graphite electrodes and copper electrodes, in particular, graphite electrodes are 67% faster than copper electrodes. In general, electrical discharge machining using graphite electrodes is 58% faster than using copper electrodes. In this way, the processing time is greatly reduced, and the manufacturing cost is also reduced. Our company has RP Graphite Electrodes on sale, welcome to consult.