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Graphite electrode material selection is based on a lot, but there are four main criteria: 1.Average particle diameter of materials The average particle diameter of the material directly affects the state of the discharge of the material. The average particle size of the material is smaller, the discharge of the material is more uniform, the discharge condition is more stable, the surface quality is better. For surface, high precision forging, die-casting molds, are usually recommended, the coarse grain materials, such as ISEM-3 etc.; for higher electron mold surface, precision requirements, recommend using average particle diameter in 4 m below the material, to ensure that by mold machining accuracy and surface finish. The average particle size of the material is smaller,…
1, by the wet graphite electrode, to be dry before use. 2, remove the foam plastic protective cap on the hole of the spare graphite electrode, and check whether the thread in the electrode hole is complete. 3, with oil and water of compressed air to clean up the spare graphite electrode surface and the hole of the screw thread; avoid cleaned with a group or a wire brush wire cloth. 4, the joint carefully screwed standby graphite electrode end (not recommended the connector directly into the furnace to replace the down electrode) electrode hole, not collide with thread. 5, the electrode sling (recommended spreader of graphite material) electrode hole screwed into the other end of the inner electrode standby.…
Mold in the home appliances, automotive, electrical, aerospace and other industrial areas has increasingly become the main process of industrial production, the main process equipment, and bear the 60%-90% of these industries in the production of parts and components of the processing. In recent years, high speed milling has broken through the limitation of traditional milling hard, high strength and high toughness die materials. But electric discharge machining with high machining accuracy and surface quality, wide processing range, especially in high speed milling can match in the advantage of joints, high hard materials of the mould cavity machining of complex and precise, thin-walled, narrow, so in electrical discharge machining (EDM) will still be the main means of the mold cavity…
