Regard a mould as the uses extensively technology inside the domain, electric spark discharge is machined (EDM) producing main effect from beginning to end. To maintain the high quality of the mould, the importance of electrode is a topic that is discussed for a long time. And be in energy-saving become heat topic today, more and more clients undertake electric spark in electrode of copper of tradition of continue to use the new trend that while discharge machines, must begin to realize a few technologies change: How can you apply limited natural resources to increase production value? How can you save time, charge and the sources of energy below coequal circumstance? Of material change, just about settle way effectively. Black lead -- the black power with this kind of tremendous potential, stabilizing physical character specially as a result of its and become electric spark discharge to machine the prospective trend of electrode material gradually. Why can black lead electrode replace cupreous electrode, fulfil a mission outstandingly? One of, of mould geometry appearance complication increasingly and the machining that the diversity of related goods application brings about pair of electric spark discharge to machine electrode and discharge accuracy demand are higher and higher. The advantage of black lead electrode is treatment easier, rate of discharge treatment purify is high, black lead loss is small, accordingly, more and more mould factories abandoned cupreous electrode and convert black lead electrode. Additional, the electrode of a little special appearance cannot use copper to make, but black lead shapes more easily, and cupreous electrode is heavier, do not suit to machine big electrode, these elements quickened black lead electrode to be in the application with mould wider and wider manufacturing industry. Secondly, black lead electrode is machined more easily, and treatment rate is apparently rapid at cupreous electrode. Use milling craft to machine black lead for instance, its machine speed relatively other metal treatment is quick 2 ～ 3 times and do not need additional artificial processing, and cupreous electrode needs hand defeat to grind. Same, if use machining center of high speed black lead to make electrode, rate will be rapidder, efficiency is taller also, still won't produce dust problem. In these treatment processes, the tool with choice appropriate hardness and black lead can reduce the grinds loss and electrode damaged of cutting tool. If specific the milling time that compares black lead electrode and electrode of cupreous electrode black lead, black lead relatively cupreous electrode is fast 67% , be in usually in discharge treatment, the treatment that uses black lead electrode wants more splitting than using cupreous phone 58% . Come so, handling time decreases considerably, also decreased to make cost at the same time. Thirdly, the design of black lead electrode and traditional copper electrode is different. A lot of mould factories have different obligate to measure in the rough machining of cupreous electrode and finish machining normally, and black lead electrode uses almost identical obligate to measure, this reduced CAD/CAM and the number that the machine machines, sheet is this reason, raise the precision of mould antrum greatly with respect to enough. Of course, mould factory turns by cupreous electrode after using black lead electrode, what should be clear about above all is this how to use graphite material and consideration other and relevant element. Nowadays, the mould of most plastic products uses black lead to be machined with electrode discharge, the process that this avoided mould antrum polish and chemical article polish still can achieve anticipated appearance however bright and clean degree. If do not increase the working procedure of time and polish, cupreous electrode makes such work impossibly. Additional, black lead cent is different grade, the black lead that uses proper social estate below specific applied process and ability of parameter of scintilla machine discharge achieve ideal treatment result, if using personnel of the operation on the scintilla machine of black lead electrode to use as identical as cupreous electrode parameter, it is disappointing for certain as a result so. If want to control the stock of electrode strictly, loss condition can be not black lead electrode in the locate when rough machining (loss is little at 1% ) , but cupreous electrode is not used. With key word summary, black lead has the high grade character that the following copper cannot compare: - machine speed: Rough machining of high speed mill relatively cupreous piece 3 times; Finish machining of high speed mill relatively cupreous piece 5 times - machinability is good, can realize complex geometrical modelling - weight is light, density is not worth cupreous 1/4, easy mix holds electrode - the amount that can reduce individual electrode, because can bind make it to combine electrode - thermal stability is good, changeless form - without treatment burr accordingly, at present a lot of mould factories are treatment of EDM of black lead electrode in progressively changeover, with period the competition ability that enhances enterprise and product in the market. Current, competition of market of electrode of domestic black lead is intense, good and evil people mixed up of vendor of each graphite material, produce character to measure the good and bad are intermingled. If the enterprise chooses as a result of graphite raw material undeserved and cannot achieve expect an end, the loss outweights the gain. Get the carbon graphite stuff with bellwether and the oldest whole world and one of relevant product suppliers as the industry, germany Xigeli carbolic vegetable group (SGL CARBON GROUP) the style with continuance Germany rigorous, excelsior enterprise, entered Chinese hind 1997, what the client that devotes oneself to to be domain of treatment of electric spark discharge in China not only offers different order and degree is high grade etc static press black lead in order to make different applying; The promotion that is the fractionize that is market of industry of Chinese black lead and integral product quality more is done hard. Only treatment of electric spark discharge uses carbon graphite product, xigeli's product line covers social estate of the following black lead: RINGSDORFF®R 8340, effective negligent discharge machines RINGSDORFF of brand of black lead electrode®R 8500, the RINGSDORFF of brand of electrode of general black lead that extensive report machines®R 8510, be able to bear or endure brand of electrode of black lead of loss fine grained, apply at the mould domain RINGSDORFF that grows increasingly®R 8650, the RINGSDORFF of brand of black lead electrode that discharge of high accuracy, essence machines®R 8710, with the brand of black lead electrode that processes at high quality, discharge exceeding essence of life, rate of discharge treatment purify is high in addition, carbolic element advocates Xigeli to carry out perfect professional service in the industry, help client finishs the electrode data that electric spark discharge processes smoothly to update. Gelite plants the wholy-owned subsidiary that its are in China on the west black lead (Shanghai) the processing factory that limited company is located in home and professional sale group devote oneself to all the time Germany professional technology of the whole world mixes Xigeli service experience takes China and with rich experience. CNC Milling