graphite electrode granular

Pubdate: 07-12 2021

What are the excellent characteristics of graphite electrode granular materials

graphite electrode granular

1. CNC CNC machining has fast processing speed, high machinability and easy trimming.

Graphite CNC machining speed is fast, 4-5 times that of copper electrodes. The finishing speed is particularly outstanding, and its strength is very high. For ultra-high (40-) , Ultra-thin (0.2-0.8mm) graphite electrode granular, not easy to deform during processing. And in many cases, the product needs to have a good texture effect, which requires the overall male graphite electrode granular to be made as much as possible when making the electrode, and there are various invisible clear corners when the overall male electrode is made, due to the easy trimming of graphite The characteristics make this problem easy to solve and greatly reduce the number of electrodes, which copper electrodes cannot do.

2. The weight is not only light, but also the cost is low

In the production cost of a set of molds, the CNC machining time, EDM time, and electrode loss of the graphite electrode granular account for most of the overall cost, and these are all determined by the electrode material itself. Compared with copper, graphite electrode granular’s machining speed and EDM speed are both 4 to 5 times that of copper. At the same time, the characteristics of minimal wear and the production of the overall graphite electrode granular can reduce the number of electrodes, which also reduces the consumables and machining time of the electrodes. All of these can greatly reduce the production cost of the mold.

3. Rapid EDM forming, small thermal expansion, low loss

As the conductivity of graphite electrode granular is better than copper, its discharge speed is faster than copper, which is 4 to 5 times that of copper. And it can withstand larger currents when discharging, which is more advantageous for rough EDM machining. At the same time, under the same volume, the weight of graphite electrode granular is 1/5 times that of copper, which greatly reduces the load of EDM. It has great advantages for making large electrodes and overall male electrodes. The sublimation temperature of graphite is 4200°C, which is 4 to 5 times that of copper (the sublimation temperature of copper is 1100°C).

At high temperatures, the deformation is extremely small (1/3~1/5 of copper under the same electrical conditions) and does not soften. The discharge energy can be transferred to the workpiece with high efficiency and low consumption. As the graphite electrode granular increases in strength at high temperatures, it can effectively reduce the discharge loss (graphite loss is 1/4 of copper) and ensure the processing quality of the finished mold.

In recent years, with the introduction of precision molds and high-efficiency molds (the mold cycle is getting shorter and shorter), people have higher and higher requirements for mold production. Due to the limitations of the copper electrodes themselves, they have become increasingly unable to meet the development of the mold industry. Claim. Graphite electrode granular, as an EDM electrode material, has been widely used in the mold industry due to its high machinability, light weight, fast forming, minimal expansion rate, low loss, and easy trimming. It has become inevitable to replace copper electrodes. CGM New Material Co., Ltd. is a professional graphite electrode granular manufacturer. Its main products include graphite electrode granular, graphite products, recarburizers, graphite crucibles, graphite plates, graphite rotors and other graphite products. Welcome companies and friends in need to inquire!


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