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Today, let's talk about the surface treatment technology of the graphite mold In addition to the reasonable matching of the strength and toughness of the matrix, the surface performance of graphite mold is very important for the working performance and service life of the graphite mould. The surface treatment technology of graphite mould is a systematic engineering to change the surface morphology, chemical composition, structure and stress state of graphite mould by surface coating, surface modification or compound treatment technology, so as to get the required surface properties. At present, the main application of the graphite mold manufacturing is nitriding, carburizing and sclerosing film deposition. Because the surface nitriding technology can form good performance, and the quenching process of nitriding…
What are the characteristics of graphite rotors with graphite support rods compared with other rotors? 1. In aluminum foil casting, aluminum alloy hub and other aluminum processing industry, the cycle is up to 2 months. 2. The rotating refining degasser is divided into movable and fixed mode, which can be applied to different operating environments. The 3. Degassing rate is above 50%, the smelting time is shortened and the production cost is reduced. 4. is suitable for purifying the aluminum liquid in the crucible furnace, the ladle and the static box. 5. Surface after oxidation treatment, the service life is about 5 times of the ordinary product, widely used in the aluminum alloy casting industry. There is a special application…
The silicon carbide crucible is a bowl shaped container with a deep ceramic bottom. When solid is heated by fire, crucible must be used, because it can withstand high temperature more than glassware. This is also the reason why the silicon carbide crucible is used by the public. First of all, the use of the silicon carbide crucible is introduced, hoping to help everyone. The crucible usually does not fill the melt too much to prevent the heat from jumping out and allowing the air to pass in and out freely to allow for possible oxidation. Because the bottom of the crucible is very small, it is usually needed to be heated directly by the fire on the mud triangle.…
