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Czochralski silicon single crystal thermal field in the pulling of monocrystalline silicon and polysilicon ingot furnace with heater in thermal field, isostatic pressing graphite parts have crucible crucible, heater, electrode, insulation shield, seed crystal holder, rotating with the base of the crucible, all kinds of round board, thermal baffle, about 30 kinds. Among them, 80% of the isostatic pressing graphite used in the manufacture of crucible and heater, etc. In recent years, the diameter of the requirements of single crystal silicon rod is more and more big, 300 mm wafer production has increasingly become the mainstream. Accordingly, the single crystal furnace heating zone, most of the 800 mm diameter, the graphite crucible furnace in order to protect the place of…
In order to shorten the production process, reduce the cost, improve the quality, reduce the labor intensity and pollution to the environment, the metal material production gradually to the continuous casting direction in 20 years. So far, the basic realization of the copper, aluminum production, high purity graphite, steel production has reached more than 80% (but most of the mold is not using graphite). Isostatic graphite is mainly used for large copper production line. Since 1985, our country from Austria, France, Switzerland, Japan and other countries has introduced more than 30 production lines, and to design our own manufacturing production line has reached more than 100, using graphite crystallizer. Graphite for electrical discharge machining Electric spark machining is a revolution…
Isostatic pressing graphite is developed in the 1960 s a new type of graphite materials, has a series of excellent performance. Isostatic pressing graphite heat resistance good, for example, in an inert atmosphere, with its mechanical strength not only the rise of temperature, increase, in the 2500 ℃ maximum when left to the right; Compared with ordinary graphite, fine structure and uniformity; Low thermal expansion coefficient, excellent thermal shock resistance; Isotropic; Thermal conductivity and chemical corrosion resistance is strong, conductive good performance; Excellent machining performance. It is precisely because has a series of excellent performance, such as static pressure graphite in metallurgical, chemical, electrical, aerospace and atomic energy industry and other fields is widely used, and, with the development of…
