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The graphite electrode has the advantages of easy processing, high metal removal rate in EDM, as well as a small loss of graphite. Therefore, more and more mold factory abandon the use of copper electrode and choose graphite electrode. So, what are the advantages of graphite? 1).The proportion of graphite is copper 1/5, the weight of the same volume of graphite is 5 times lighter than that of copper. the large electrodes made from copper are too heavy, in the long running, it is very unfavorable to the accuracy of the machine tool spindle on the EDM. But graphite is opposite and in safe handling! 2).The graphite can have a very high processing speed, the general speed of the processing…
Graphite has good resistance to high temperature, electrical conductivity, thermal conductivity, lubricity, and chemical stability, widely used in metallurgical, mechanical, environmental, chemical, fire resistance, electronics, medical, military and aerospace fields, is becoming more and more important in the national economy, is essential to modern industry and high and new advanced technology development the important non-metallic materials, and trace impurities have a great effect on the performance of graphite products. The higher the carbon content of graphite, the better the performance of the functional materials will be. Because there are very few impurities in high purity graphite, and the general analytical method of instrumental analysis can not be detected accurately, this method needs to be improved. The analysis of trace impurities…
The graphite heater has three kinds of common shape, cylindrical, cup, spiral, the vast majority of the heater is a cylinder. Made of high purity graphite heater with carbon content of more than 99.9%; the graphite bowl wall thickness is generally 3 mm - 6 mm; after a long period of practice, the effective length of the quartz crucible heater is 1.6 times the height to 1.8 times. Now more and more of the graphite heater used to heat treating and brazing furnace, thermal field generally used coarse graphite in the fine structure of the bottom prop up the market, the thermal insulation cover, upper cover and a lower cover; imported isostatic graphite as a heater. The heating principle of…
