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Graphite packing rings, also called graphite die-formed ring,is made of flexible graphite sheet. It can be made of pure graphite sheet or reinforced graphite sheet with stainless steel wire,wire mesh,nickel wire,nickel wire mesh etc.Then be compressed in precise tools to the required density.it has square section and also has V-shaped and wedge-shaped section,the rear two kinds style are suitable for high pressure sealing. They are stable and reliable even if under awful working circumstances.and they are usually used with reinforced expanded graphite rings forming a complete set. The graphite packing can be use as packing sealing for valves,pumps and reaction vessels. The standard specification below: Different properties depends on the different reinforced materials. pH 0 ~ 14 Temperature 800 ℃ …
Graphite electrodes material are characterized by superior compact structure, good electrical and thermal conductivity, high resistance to oxidation and corrosion in high temperature. The regular power graphite electrodes graphite electrodes for heavy industrial arc furnaces, steel mills, foundries, and other applications. There are a lot of selection criteria for graphite electrode material, but the main selection criteria are four. 1.Average particle diameter of graphite electrode materials Average particle diameter of graphite electrode materials Direct influence on the discharge of materials。The smaller the average particle size of the graphite electrode material, the more uniform the discharge of the material, the more stable the discharge, the better the quality of the surface.。For the surface machining accuracy of the casting die casting die,…
Electrical discharge machining (EDM) with the advantages of graphite and copper electrode than graphite electrode, the proportion of graphite is 1/5 of the copper, the weight of the same volume of graphite copper relatively light for 5 times. Easy to manufacture large mould; Graphite processing speed, generally 3 ~ 5 times faster than ordinary metals, can reduce the tool wear and the electrode loss; Graphite high melting point and easy not deformation, don't have to worry about because of high processing through deformation and damage of components; Graphite in processing after the completion of the polishing processing generally don't have to. To reduce the error and shorten the production cycle. Graphite electric cremation processing speed and low dissipation factor, as…
