graphite electrode for yellow phosphorus
graphite electrode for yellow phosphorus material properties
CNC machining speed is fast, high machinability, easy to trim. Graphite machining speed is 3-5 times that of copper electrode. The finishing speed is particularly outstanding, and its strength is very high. For ultra-high (50-90mm), ultra-thin ( 0.2-0.5mm) electrodes are not easy to deform during processing. And in many cases, the product needs to have a good texture effect, which requires that the overall male electrode be made as much as possible when the electrode is made, and there are various invisible clear angles when the overall male electrode is made. Due to the easy-to-dress characteristics of graphite, This makes this problem easy to solve, and greatly reduces the number of electrodes, which copper electrodes cannot do.
Lightweight and low cost In the production cost of a set of molds, the CNC machining time of the electrode, EDM time, electrode loss, etc. account for the vast majority of the overall cost, and these are all determined by the electrode material itself. Compared with copper, graphite’s machining speed and EDM speed are 3 to 5 times that of copper. At the same time, the characteristics of minimal wear and the production of the overall graphite electrode for yellow phosphorus can reduce the number of electrodes, which reduces the consumables and machining time of the electrodes. All of these can greatly reduce the production cost of the mold.
Fast EDM forming, low thermal expansion, low loss Since graphite has better electrical conductivity than copper, its discharge speed is faster than copper, which is 3 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 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 3 to 4 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 strength of graphite increases at high temperatures, it can effectively reduce discharge loss (graphite loss is 1/4 of copper) and ensure processing quality.
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 requirements of the mold industry. Development requirements. As an EDM electrode material, graphite 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. County Tongyuan Carbon Co., Ltd. is a professional manufacturer of graphite blocks, graphite electrode for yellow phosphorus, the main products: graphite blocks, ordinary power graphite electrode for yellow phosphorus, high power graphite electrode for yellow phosphorus, graphite plates, rotary kiln graphite blocks , Graphite burners, carbon products and various shaped graphite for kilns, graphite block materials, etc.